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Decision-making along the supply chain requires accurate estimates of the remaining shelf life (RSHL) depending upon not only the initial storage conditions and duration but also aspects such as the variety or condition of the fruit at harvest. Offering ready-to-eat fruit on at the retail level, is a frequent marketing strategy in which management of shelf life is mandatory. The most widespread models, so-called generic shelf life models for estimating the RSHL gather the actual temperature series and the optimal storage temperature while assuming standard values for other parameters such Q10 or the reference shelf life. In this work, a general mathematical procedure, and corresponding algorithm are proposed to adjust the parameters of the generic RSHL model referring to several varieties of peaches and nectarines. Postharvest protocols are simulated to obtain ready-to-eat fruit for recently bred varieties. To this aim, temperature was recorded continuously throughout the postharvest protocol, while instrumental and sensory evaluations were taken at the end of each stage of the protocol. Outputs of a principal component analysis based on instrumental data allowed to i) identify the instrumental variables most relevant to sensory evaluation and corresponding evolution under shelf life conditions and ii) define a multidimensional estimator of shelf life. The particular values of this multidimensional estimator together with the temperature series are the basis to solve the equation that lead to specific values of Q10 and reference shelf life for each variety in the study. The average reference shelf life of peaches is bounded to 24 d, 30 % shorter (10 d less) than the average shelf life of nectarines. The Q10 values are bounded between 1.5 and 2.8, highlighting the varietal effects. Generally, Q10 values for peaches are indicative of a higher susceptibility to the breakage of the cold chain compared to nectarines.
B. Diezma; P. Barreiro; P. Baltazar; E.C. Correa. A general procedure for predicting the remaining shelf life of nectarines and peaches for virtualization of the value chain. Postharvest Biology and Technology 2021, 181, 111677 .
AMA StyleB. Diezma, P. Barreiro, P. Baltazar, E.C. Correa. A general procedure for predicting the remaining shelf life of nectarines and peaches for virtualization of the value chain. Postharvest Biology and Technology. 2021; 181 ():111677.
Chicago/Turabian StyleB. Diezma; P. Barreiro; P. Baltazar; E.C. Correa. 2021. "A general procedure for predicting the remaining shelf life of nectarines and peaches for virtualization of the value chain." Postharvest Biology and Technology 181, no. : 111677.
There is growing interest within the peach and nectarine markets in obtaining and selling ready-to-eat fruits. For this, pre-ripening protocols are being applied, which do not always result in sufficiently juicy fruits. Therefore, the aim of this study is the development of objective instrumental procedures for quantification of the juiciness attributes of these fruits. In this work, we evaluated the juiciness of more than 2000 fruits belonging to 20 of the varieties of greatest interest in the southeast of Spain. An instrumental mechanical procedure based on the confined compression of a pulp specimen of known volume was designed and optimized. Instrumental juiciness was defined as the wet area (cm2) on an absorbent paper located under the compression probe. This test allowed for the defining of objective thresholds for the identification of juicy fruits; 90% of the fruits with areas higher than 5.4 cm2 were considered to be juicy. Complementarily, non-invasive supervision by near-infrared (NIR) spectroscopy, based on pulp structural changes during ripening, allowed for estimation of the instrumental juiciness with coefficients of correlation above 0.83. The results of these instrumental procedures contribute to supporting decision tools in the logistics chain of stone fruits.
Paola Baltazar; Eva Cristina Correa; Belén Diezma. Instrumental Procedures for the Evaluation of Juiciness in Peach and Nectarine Cultivars for Fresh Consumption. Agronomy 2020, 10, 152 .
AMA StylePaola Baltazar, Eva Cristina Correa, Belén Diezma. Instrumental Procedures for the Evaluation of Juiciness in Peach and Nectarine Cultivars for Fresh Consumption. Agronomy. 2020; 10 (2):152.
Chicago/Turabian StylePaola Baltazar; Eva Cristina Correa; Belén Diezma. 2020. "Instrumental Procedures for the Evaluation of Juiciness in Peach and Nectarine Cultivars for Fresh Consumption." Agronomy 10, no. 2: 152.
The livestock sector seeks technologies and procedures to collect and manage data and information about its facilities and animals being the basis of the so-called precision livestock. The installation of unusual devices in commercial facilities, as well as the use of electronic feeding stations, allows observers to characterize the behavior pattern of each individual in order to improve farm management techniques and, therefore, its productivity. In this study, 30 Landrace pigs were monitored during the whole fattening period. Results from the study show that the ear skin temperatures of the animals can be used to distinguish animals with different thermal patterns. The parameters extracted from the feeding stations show consistent relationships between the parameters related to the frequency, size, and duration parameters, highlighting the differences in the feeding strategies. In this work, a complete fattening period (81 days) of a total of 30 Landrace pigs housed in two pens of a nucleus in Villatobas (Castilla-La Mancha, Spain) were supervised. The ear skin temperature of each animal was recorded every three minutes. The body weight, the date, the duration, and the amount of feed consumed per animal was monitored via an electronic feeding station. The objective was the identification of animals with different behaviors based on the integration of their thermal and intake patterns. The ear skin temperatures of the animals showed a negative relationship between the mean and the standard deviation (r = 0.83), distinguishing animals with different thermal patterns: individuals with high-temperature values show less thermal variability and vice versa. Feeding parameters showed differences in the feeding strategies of animals, identifying fast-eating animals with a high rate feed intake (60 g/min) and slow eaters (30 g/min). The correlation between the change in the rate of feed intake along with animal growth and feed efficiency reached a significant negative value (−0.57), indicating that animals that do not alter their rate of feed intake along breeding showed higher efficiencies. The difference in temperature of an animal with respect to the averaged group value has allowed us to identify animals with differentiated feeding patterns.
Miguel Garrido-Izard; Eva-Cristina Correa; José-María Requejo; Belén Diezma. Continuous Monitoring of Pigs in Fattening Using a Multi-Sensor System: Behavior Patterns. Animals 2019, 10, 52 .
AMA StyleMiguel Garrido-Izard, Eva-Cristina Correa, José-María Requejo, Belén Diezma. Continuous Monitoring of Pigs in Fattening Using a Multi-Sensor System: Behavior Patterns. Animals. 2019; 10 (1):52.
Chicago/Turabian StyleMiguel Garrido-Izard; Eva-Cristina Correa; José-María Requejo; Belén Diezma. 2019. "Continuous Monitoring of Pigs in Fattening Using a Multi-Sensor System: Behavior Patterns." Animals 10, no. 1: 52.
High or variable ambient temperature can affect thermal regulation in livestock, but few studies have studied thermal variability during air and road transport, partly due to the lack of tools to compare thermal data from a long time series over periods of different duration. In this study, we recorded the ear skin temperature (EST) of 11 Duroc breeder pigs (7 females and 4 males) during commercial intercontinental transport from Canada to Spain, which included both road and aircraft travel and lasted 65 h. The EST was measured using a logger placed inside the left ear. Phase space diagrams EST, that is EST time series vs. itself delayed in time, were used to quantify the variability of the time-temperature series based on the areas that included all the points in the phase space. Phase space areas were significantly higher for all the animals during air travel, almost doubling that of road transport. Using the phase spaces, we identified an event during air transport that lasted 57 min, leading to a general decrease in EST by 8 °C, with respect to the average EST (34.1 °C). We also found that thermal variability was more stable in males (F = 20.81, p = 0.0014), which were also older and heavier.
Miguel Garrido-Izard; Eva-Cristina Correa; José-María Requejo; Morris Villarroel; Belén Diezma. Phase Space Analysis of Pig Ear Skin Temperature during Air and Road Transport. Applied Sciences 2019, 9, 5527 .
AMA StyleMiguel Garrido-Izard, Eva-Cristina Correa, José-María Requejo, Morris Villarroel, Belén Diezma. Phase Space Analysis of Pig Ear Skin Temperature during Air and Road Transport. Applied Sciences. 2019; 9 (24):5527.
Chicago/Turabian StyleMiguel Garrido-Izard; Eva-Cristina Correa; José-María Requejo; Morris Villarroel; Belén Diezma. 2019. "Phase Space Analysis of Pig Ear Skin Temperature during Air and Road Transport." Applied Sciences 9, no. 24: 5527.
Jose M. Requejo; Miguel Garrido-Izard; Eva Correa; Morris Villarroel; Belen Diezma. Corrigendum to “Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort” [Biosyst Eng 174 (2018) 80–88]. Biosystems Engineering 2019, 188, 355 .
AMA StyleJose M. Requejo, Miguel Garrido-Izard, Eva Correa, Morris Villarroel, Belen Diezma. Corrigendum to “Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort” [Biosyst Eng 174 (2018) 80–88]. Biosystems Engineering. 2019; 188 ():355.
Chicago/Turabian StyleJose M. Requejo; Miguel Garrido-Izard; Eva Correa; Morris Villarroel; Belen Diezma. 2019. "Corrigendum to “Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort” [Biosyst Eng 174 (2018) 80–88]." Biosystems Engineering 188, no. : 355.
Total oil content (OC) is one of the main parameters used to characterize the whole of olives entering a commercial mill, quantified by the total fresh weight of the lot and the oil concentration (%) assessed in a representative sample on olive paste, by means of chemical extraction. Nuclear magnetic resonance (NMR) and NIR spectroscopy are alternative methods even at individual olives. This work evaluates several strategies to calibrate precise NIR models for the estimation of the total OC. To this end, 278 olives were analysed covering whole season variability in terms of olive fresh-weight and the corresponding OC by chemical extraction in 31 batches. The average spectra from hyperspectral NIR images (1003–2208 nm) were computed for each fruit and the actual OC (g) of those olives determined by NMR (0.09 to 1.29 g with a precision of 0.017 g). According to the results, current batch based assessment of the OC (Soxhlet, %) in mills only reproduces 44% of the underlying heterogeneity, despite being the factory standard. The incorporation of individual NIR spectra (278) to the 31 Soxhlet values of the batches allows a 67% explanation of the OC (%) of olives. When estimating OC (g) gathering individual fresh weight and the estimation of oil concentration in olives, a standard error of prediction of 0.061 g is reached (r2 = 0.93), a precision value that approaches the potential limit according to the NMR reference (0.017 g).
E. C. Correa; J. M. Roger; Lourdes Lleó; Natalia Hernandez Sanchez; Pilar Barreiro; B. Diezma. Optimal management of oil content variability in olive mill batches by NIR spectroscopy. Scientific Reports 2019, 9, 1 -11.
AMA StyleE. C. Correa, J. M. Roger, Lourdes Lleó, Natalia Hernandez Sanchez, Pilar Barreiro, B. Diezma. Optimal management of oil content variability in olive mill batches by NIR spectroscopy. Scientific Reports. 2019; 9 (1):1-11.
Chicago/Turabian StyleE. C. Correa; J. M. Roger; Lourdes Lleó; Natalia Hernandez Sanchez; Pilar Barreiro; B. Diezma. 2019. "Optimal management of oil content variability in olive mill batches by NIR spectroscopy." Scientific Reports 9, no. 1: 1-11.
Mammalian skin temperature is often used as an indicator of health status but has also been used in animal production as a proxy measure for thermoregulatory effort or energy wastage. An animal with a higher skin temperature may also have a lower feed efficiency. With advances in technology it is now feasible to continuously record temperatures of livestock over protracted periods of time. In this study, the ear skin pig temperature was related to feed efficiency using phase space diagram methodology. Fourteen Landrace finishers (all male) housed in one pen over a week at relatively high temperatures (average temperature throughout the experiment 27 °C) were supervised. The date, time and amount of feed consumed per individual animals was monitored via an electronic feeding station. The number of visits to the feeding station was used as an indicator of physical locomotor activity. Each animal was weighed at the beginning and at the end of the experiment to calculate their feed efficiency. The areas of the phase space diagrams of skin temperatures were used to quantify the variability of the time temperature series. Two areas in the phase space were correlated with feed efficiency (r = 0.77) and physical locomotor activity (r = 0.53). An index was developed that includes both areas, which increased the correlation between the variability of ear skin temperature and feed efficiency to r = 0.85. This methodology could be used to help categorise pigs in terms of feed efficiency for rapid phenotyping.
Jose M. Requejo; Miguel Garrido-Izard; Eva C. Correa; Morris Villarroel; Belen Diezma. Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort. Biosystems Engineering 2018, 174, 80 -88.
AMA StyleJose M. Requejo, Miguel Garrido-Izard, Eva C. Correa, Morris Villarroel, Belen Diezma. Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort. Biosystems Engineering. 2018; 174 ():80-88.
Chicago/Turabian StyleJose M. Requejo; Miguel Garrido-Izard; Eva C. Correa; Morris Villarroel; Belen Diezma. 2018. "Pig ear skin temperature and feed efficiency: Using the phase space to estimate thermoregulatory effort." Biosystems Engineering 174, no. : 80-88.
ISHS VIII International Postharvest Symposium: Enhancing Supply Chain and Consumer Benefits - Ethical and Technological Issues Air temperature, relative humidity, and enthalpy phase space analysis: an innovative proposal for failures diagnosis in a cold chain
Eva Correa; B. Diezma; J. García-Hierro; J.I. Robla; T. Jiménez-Ariza; M. Gómez; Ana Cecilia Silveira; V. Escalona; F.J. Arranz; P. Barreiro. Air temperature, relative humidity, and enthalpy phase space analysis: an innovative proposal for failures diagnosis in a cold chain. Acta Horticulturae 2018, 1057 -1064.
AMA StyleEva Correa, B. Diezma, J. García-Hierro, J.I. Robla, T. Jiménez-Ariza, M. Gómez, Ana Cecilia Silveira, V. Escalona, F.J. Arranz, P. Barreiro. Air temperature, relative humidity, and enthalpy phase space analysis: an innovative proposal for failures diagnosis in a cold chain. Acta Horticulturae. 2018; (1194):1057-1064.
Chicago/Turabian StyleEva Correa; B. Diezma; J. García-Hierro; J.I. Robla; T. Jiménez-Ariza; M. Gómez; Ana Cecilia Silveira; V. Escalona; F.J. Arranz; P. Barreiro. 2018. "Air temperature, relative humidity, and enthalpy phase space analysis: an innovative proposal for failures diagnosis in a cold chain." Acta Horticulturae , no. 1194: 1057-1064.
A. Moya-González; J. Garcia-Hierro; B. Diezma; J.I. Robla; N. Oeggerli; E.C. Correa. Suitability of contact temperature sensors for kinetic temperature reference measurements in thermography. 2018 Quantitative InfraRed Thermography 2018, 1 .
AMA StyleA. Moya-González, J. Garcia-Hierro, B. Diezma, J.I. Robla, N. Oeggerli, E.C. Correa. Suitability of contact temperature sensors for kinetic temperature reference measurements in thermography. 2018 Quantitative InfraRed Thermography. 2018; ():1.
Chicago/Turabian StyleA. Moya-González; J. Garcia-Hierro; B. Diezma; J.I. Robla; N. Oeggerli; E.C. Correa. 2018. "Suitability of contact temperature sensors for kinetic temperature reference measurements in thermography." 2018 Quantitative InfraRed Thermography , no. : 1.
Francisco J. Arranz; Tatiana Jiménez-Ariza; Belén Diezma; Eva C. Correa; Francisco Javier Arranz Saiz. Determination of diffusion and convective transfer coefficients in food drying revisited: A new methodological approach. Biosystems Engineering 2017, 162, 30 -39.
AMA StyleFrancisco J. Arranz, Tatiana Jiménez-Ariza, Belén Diezma, Eva C. Correa, Francisco Javier Arranz Saiz. Determination of diffusion and convective transfer coefficients in food drying revisited: A new methodological approach. Biosystems Engineering. 2017; 162 ():30-39.
Chicago/Turabian StyleFrancisco J. Arranz; Tatiana Jiménez-Ariza; Belén Diezma; Eva C. Correa; Francisco Javier Arranz Saiz. 2017. "Determination of diffusion and convective transfer coefficients in food drying revisited: A new methodological approach." Biosystems Engineering 162, no. : 30-39.
Many Fabaceae species have a hard and impermeable seed coat that requires scarification for germination. The variability within a batch and between batches of the same species can be very high, resulting in inefficient dormancy breaking. The main objectives of this study were to investigate the variability in hardseededness among four populations of the legume species Medicago polymorpha, Trifolium glomeratum and T. subterraneum, and to evaluate the effect of the best scarification treatments on the mechanical properties of the seed coat. These species have very small seeds that hinder scarification procedures. Different treatments, including sanding and temperature changes, were studied. Results varied among species, and the most efficient treatment for breaking dormancy was determined for each one. For each species, wide variability was observed in the best scarification treatment within and among populations. The effect of the best scarification treatment on the seed coat of each species was examined by means of scanning electronic microscopy (SEM). Evident differences were found in T. glomeratum, as the treatment used was sanding. In T. subterraneum, scarified seeds (by thermal treatment) showed wider hilum opening. No differences were observed in M. polymorpha seeds.
S. Mira; Alessandra Schnadelbach; Eva Correa; Sara Mira Perez; M.E. González-Benito. Variability of physical dormancy in relation to seed mechanical properties of three legume species. Seed Science and Technology 2017, 1 .
AMA StyleS. Mira, Alessandra Schnadelbach, Eva Correa, Sara Mira Perez, M.E. González-Benito. Variability of physical dormancy in relation to seed mechanical properties of three legume species. Seed Science and Technology. 2017; ():1.
Chicago/Turabian StyleS. Mira; Alessandra Schnadelbach; Eva Correa; Sara Mira Perez; M.E. González-Benito. 2017. "Variability of physical dormancy in relation to seed mechanical properties of three legume species." Seed Science and Technology , no. : 1.
Malvella sherardiana (L.) Jaub & Spach (Malvaceae) is a perennial herbaceous plant listed as Vulnerable in the Red List of threatened plant species for Spain. The germination characteristics under controlled conditions of light and temperature of M. sherardiana seeds were studied. Mechanical scarification, cold stratification, liquid nitrogen, freezing, hot water, dry heat, sulphuric acid, soaking in distilled water and soaking in gibberellic acid were used as pre-sowing treatments applied for enhancing germination. The untreated seeds showed a high dormancy at all temperature regimens tested and sulphuric acid scarification drastically improved final germination percentage and germination rate. Germination of seeds soaked in concentrated sulphuric acid arithmetically increased as soaking time increased (from 5 min to 3 h), but seeds soaked in acid for more than 4 h failed to germinate. The application of a gibberellic acid solution (1000 mg l−1) increased the germination percentages for all tested soaking times in sulphuric acid. However, it was only significantly effective for the soaking time of 3 h. The other pre-sowing treatments resulted in some germination, but none resulted in greater germination than sulphuric acid. As embryos are fully developed and the seed coat is water permeable, we conclude that M. sherardiana seeds present physiological dormancy. The main conclusion of the study is that dormancy of M. sherardiana seeds is attributed to mechanical restriction of the embryo caused by the tough seed coat. This is the first report on germination requirements of the Malvella genus.
L. Veiga-Barbosa; C. Ruiz; Eva Correa; F. Pérez-García. Dormancy imposed by a tough seed coat in Malvella sherardiana (Malvaceae), a highly threatened species of Spain. Botany Letters 2016, 163, 321 -327.
AMA StyleL. Veiga-Barbosa, C. Ruiz, Eva Correa, F. Pérez-García. Dormancy imposed by a tough seed coat in Malvella sherardiana (Malvaceae), a highly threatened species of Spain. Botany Letters. 2016; 163 (3):321-327.
Chicago/Turabian StyleL. Veiga-Barbosa; C. Ruiz; Eva Correa; F. Pérez-García. 2016. "Dormancy imposed by a tough seed coat in Malvella sherardiana (Malvaceae), a highly threatened species of Spain." Botany Letters 163, no. 3: 321-327.
The study of the temperature gradients in cold stores and containers is a critical issue in the food industry for the quality assurance of products during transport and for minimising losses. This work presents an analysis of the temperatures during the refrigerated transport of 4,320 kg of blueberries in a reefer (set point temperature at −1°C) on a container ship from Montevideo (Uruguay) to Verona (Italy). The monitoring was performed by using semi-passive RFID loggers (TurboTag cards). The objective was to carry out a multi-distributed supervision using low-cost, wireless and autonomous sensors for the characterisation of the distribution and spatial gradients of temperatures during a long distance transport. Data analysis shows spatial (phase space) and temporal sequencing diagrams and reveals a significant heterogeneity of temperature at different locations in the container, which highlights the ineffectiveness of a temperature control system based on a single sensor, as is usually done.
Heidi Tatiana Jiménez Ariza; Eva Correa; Belén Diezma; Adolfo Moya González; Francisco Javier Arranz Saiz; Pilar Barreiro. Multi-distributed wireless sensors for monitoring a long distance transport in a reefer container. International Journal of Postharvest Technology and Innovation 2015, 5, 149 .
AMA StyleHeidi Tatiana Jiménez Ariza, Eva Correa, Belén Diezma, Adolfo Moya González, Francisco Javier Arranz Saiz, Pilar Barreiro. Multi-distributed wireless sensors for monitoring a long distance transport in a reefer container. International Journal of Postharvest Technology and Innovation. 2015; 5 (2):149.
Chicago/Turabian StyleHeidi Tatiana Jiménez Ariza; Eva Correa; Belén Diezma; Adolfo Moya González; Francisco Javier Arranz Saiz; Pilar Barreiro. 2015. "Multi-distributed wireless sensors for monitoring a long distance transport in a reefer container." International Journal of Postharvest Technology and Innovation 5, no. 2: 149.
We propose a model, based on the Gompertz equation, to describe the growth of yeasts colonies on agar medium. This model presents several advantages: (i) one equation describes the colony growth, which previously needed two separate ones (linear increase of radius and of the squared radius); (ii) a similar equation can be applied to total and viable cells, colony area or colony radius, because the number of total cells in mature colonies is proportional to their area; and (iii) its parameters estimate the cell yield, the cell concentration that triggers growth limitation and the effect of this limitation on the specific growth rate. To elaborate the model, area, total and viable cells of 600 colonies of Saccharomyces cerevisiae, Debaryomyces fabryi, Zygosaccharomyces rouxii and Rhodotorula glutinis have been measured. With low inocula, viable cells showed an initial short exponential phase when colonies were not visible. This phase was shortened with higher inocula. In visible or mature colonies, cell growth displayed Gompertz‐type kinetics. It was concluded that the cells growth in colonies is similar to liquid cultures only during the first hours, the rest of the time they grow, with near‐zero specific growth rates, at least for 3 weeks.
E.-M. Rivas; E. Gil De Prado; Petra Wrent; María Isabel De Silóniz; Pilar Barreiro; E.C. Correa; F. Conejero; A. Murciano; J.M. Peinado. A simple mathematical model that describes the growth of the area and the number of total and viable cells in yeast colonies. Letters in Applied Microbiology 2014, 59, 594 -603.
AMA StyleE.-M. Rivas, E. Gil De Prado, Petra Wrent, María Isabel De Silóniz, Pilar Barreiro, E.C. Correa, F. Conejero, A. Murciano, J.M. Peinado. A simple mathematical model that describes the growth of the area and the number of total and viable cells in yeast colonies. Letters in Applied Microbiology. 2014; 59 (6):594-603.
Chicago/Turabian StyleE.-M. Rivas; E. Gil De Prado; Petra Wrent; María Isabel De Silóniz; Pilar Barreiro; E.C. Correa; F. Conejero; A. Murciano; J.M. Peinado. 2014. "A simple mathematical model that describes the growth of the area and the number of total and viable cells in yeast colonies." Letters in Applied Microbiology 59, no. 6: 594-603.
The fermentation stage is considered to be one of the critical steps in coffee processing due to its impact on the final quality of the product. The objective of this work is to characterise the temperature gradients in a fermentation tank by multi-distributed, low-cost and autonomous wireless sensors (23 semi-passive TurboTag radio-frequency identifier (RFID) temperature loggers). Spatial interpolation in polar coordinates and an innovative methodology based on phase space diagrams are used. A real coffee fermentation process was supervised in the Cauca region (Colombia) with sensors submerged directly in the fermenting mass, leading to a 4.6 °C temperature range within the fermentation process. Spatial interpolation shows a maximum instant radial temperature gradient of 0.1 °C/cm from the centre to the perimeter of the tank and a vertical temperature gradient of 0.25 °C/cm for sensors with equal polar coordinates. The combination of spatial interpolation and phase space graphs consistently enables the identification of five local behaviours during fermentation (hot and cold spots).
E. C. Correa; T. Jiménez-Ariza; V. Díaz-Barcos; Pilar Barreiro; B. Diezma; R. Oteros; C. Echeverri; F. J. Arranz; Margarita Ruiz Altisent. Advanced Characterisation of a Coffee Fermenting Tank by Multi-distributed Wireless Sensors: Spatial Interpolation and Phase Space Graphs. Food and Bioprocess Technology 2014, 7, 3166 -3174.
AMA StyleE. C. Correa, T. Jiménez-Ariza, V. Díaz-Barcos, Pilar Barreiro, B. Diezma, R. Oteros, C. Echeverri, F. J. Arranz, Margarita Ruiz Altisent. Advanced Characterisation of a Coffee Fermenting Tank by Multi-distributed Wireless Sensors: Spatial Interpolation and Phase Space Graphs. Food and Bioprocess Technology. 2014; 7 (11):3166-3174.
Chicago/Turabian StyleE. C. Correa; T. Jiménez-Ariza; V. Díaz-Barcos; Pilar Barreiro; B. Diezma; R. Oteros; C. Echeverri; F. J. Arranz; Margarita Ruiz Altisent. 2014. "Advanced Characterisation of a Coffee Fermenting Tank by Multi-distributed Wireless Sensors: Spatial Interpolation and Phase Space Graphs." Food and Bioprocess Technology 7, no. 11: 3166-3174.
The study of temperature gradients in cold stores and containers is a critical issue in the food industry for the quality assurance of products during transport, as well as for minimizing losses. The objective of this work is to develop a new methodology of data analysis based on phase space graphs of temperature and enthalpy, collected by means of multidistributed, low cost and autonomous wireless sensors and loggers. A transoceanic refrigerated transport of lemons in a reefer container ship from Montevideo (Uruguay) to Cartagena (Spain) was monitored with a network of 39 semi-passive TurboTag RFID loggers and 13 i-button loggers. Transport included intermodal transit from transoceanic to short shipping vessels and a truck trip. Data analysis is carried out using qualitative phase diagrams computed on the basis of Takens–Ruelle reconstruction of attractors. Fruit stress is quantified in terms of the phase diagram area which characterizes the cyclic behaviour of temperature. Areas within the enthalpy phase diagram computed for the short sea shipping transport were 5 times higher than those computed for the long sea shipping, with coefficients of variation above 100 % for both periods. This new methodology for data analysis highlights the significant heterogeneity of thermohygrometric conditions at different locations in the container.
T. Jimenez-Ariza; E. C. Correa; B. Diezma; Ana Cecilia Silveira; P. Zócalo; F. J. Arranz; A. Moya-González; Miguel Garrido Izard; Pilar Barreiro; Margarita Ruiz Altisent. The Phase Space as a New Representation of the Dynamical Behaviour of Temperature and Enthalpy in a Reefer monitored with a Multidistributed Sensors Network. Food and Bioprocess Technology 2013, 7, 1793 -1806.
AMA StyleT. Jimenez-Ariza, E. C. Correa, B. Diezma, Ana Cecilia Silveira, P. Zócalo, F. J. Arranz, A. Moya-González, Miguel Garrido Izard, Pilar Barreiro, Margarita Ruiz Altisent. The Phase Space as a New Representation of the Dynamical Behaviour of Temperature and Enthalpy in a Reefer monitored with a Multidistributed Sensors Network. Food and Bioprocess Technology. 2013; 7 (6):1793-1806.
Chicago/Turabian StyleT. Jimenez-Ariza; E. C. Correa; B. Diezma; Ana Cecilia Silveira; P. Zócalo; F. J. Arranz; A. Moya-González; Miguel Garrido Izard; Pilar Barreiro; Margarita Ruiz Altisent. 2013. "The Phase Space as a New Representation of the Dynamical Behaviour of Temperature and Enthalpy in a Reefer monitored with a Multidistributed Sensors Network." Food and Bioprocess Technology 7, no. 6: 1793-1806.
Physico-chemical and organoleptic characteristics of food depend largely on the microscopic level distribution of gases and water, and connectivity and mobility through the pores. Microstructural characterization of food can be accomplished by Magnetic Resonance Imaging (MRI) and Nuclear Magnetic Spectroscopy (NMR) combined with the application of methods of dissemination and multidimensional relaxometry. In this work, funded by the EC Project InsideFood, several artificial food models, based on foams and gels were studied using MRI and 2D relaxometry. Two different kinds of foams were used: a sugarless and a sugar foam. Then, a half of a syringe was filled with the sugarless foam and the other half with the sugar foam. Then, MRI and NMR experiments were performed and the sample evolution was observed along 3 days in order to quantify macrostructural changes through proton density images and microstructural ones using T1T2 maps, using an inversion CPMG sequence. On the proton density images it may be seen that after 16 hours it was possible to differentiate the macrostructural changes, as the apparition of free water due to a syneresis phenomenon. On the interface it can be seen a brighter area after 16 hours, due to the occurrence of free water. Moreover, thanks to the bidimensional relaxometry (T1-T2) it was possible to differentiate among microscopic changes. Differences between the pores size can be observed as well as the microstructure evolution after 30.5 hours, as a consequence differences are shown on free water redistribution through larger pores and capillarity phenomena between both foams.
A. Melado-Herreros; Pilar Barreiro; M.E. Fernandez-Valle; T. Jimenez-Ariza; Eva Correa; N. Campos; V. Diaz-Barcos; E.M. Rivas; M.I. Silóinz; B. Hills. MRI and Bidimensional Relaxometry Sequences for Macro and Microstructure Assessment in Food Models. Special Publications 2013, 130 -137.
AMA StyleA. Melado-Herreros, Pilar Barreiro, M.E. Fernandez-Valle, T. Jimenez-Ariza, Eva Correa, N. Campos, V. Diaz-Barcos, E.M. Rivas, M.I. Silóinz, B. Hills. MRI and Bidimensional Relaxometry Sequences for Macro and Microstructure Assessment in Food Models. Special Publications. 2013; ():130-137.
Chicago/Turabian StyleA. Melado-Herreros; Pilar Barreiro; M.E. Fernandez-Valle; T. Jimenez-Ariza; Eva Correa; N. Campos; V. Diaz-Barcos; E.M. Rivas; M.I. Silóinz; B. Hills. 2013. "MRI and Bidimensional Relaxometry Sequences for Macro and Microstructure Assessment in Food Models." Special Publications , no. : 130-137.
Incorporation of fiber in cereals may lead to quality issues, thus decreasing consumer acceptance. This is partially due to deterioration of the microstructure, one of the primary quality attributes of cereals. The objective of this study was to better understand the mechanisms by which dietary fibers affect the quality of cereal products during extrusioncooking. The study quantified the effect of amount and type of fiber and whole grain on (i) texture, (ii) structure, and (iii) rehydration properties of extruded cereals. New innovative methods were applied and combined with traditional techniques to characterize both the structure and the rehydration properties. Extruded cereals were produced using a starch-based recipe (whole and wheat flours) and two sources of fibers (oat bran concentrate and wheat bran). The oat and wheat bran levels used in this study were 0, 10, and 20%. The different mixtures were extruded in a pilot twinscrew extruder BC21 (Clextral) and then sugar coated after drying. Mechanical properties of extruded cereals were investigated by compression test. The cellular structure was observed by X-ray tomography. The quality of coating (thickness, homogeneity) was analyzed by optical coherence tomography. The rehydration properties of such cereals in milk were evaluated by magnetic resonance imaging and optical coherence tomography. This work revealed that structure assessment of extruded cereals may lead to a better understanding of the effect of fiber addition on texture and rehydration properties. The application of innovative methods, such as optical coherence tomography and magnetic resonance imaging, was found to be useful to quantify the structural properties.
Sophie Chassagne-Berces; Michael Leitner; Angela Melado; Pilar Barreiro; Eva Cristina Correa; Imre Blank; Jean-Claude Gumy; Hélène Chanvrier. Effect of fibers and whole grain content on quality attributes of extruded cereals. Procedia Food Science 2011, 1, 17 -23.
AMA StyleSophie Chassagne-Berces, Michael Leitner, Angela Melado, Pilar Barreiro, Eva Cristina Correa, Imre Blank, Jean-Claude Gumy, Hélène Chanvrier. Effect of fibers and whole grain content on quality attributes of extruded cereals. Procedia Food Science. 2011; 1 ():17-23.
Chicago/Turabian StyleSophie Chassagne-Berces; Michael Leitner; Angela Melado; Pilar Barreiro; Eva Cristina Correa; Imre Blank; Jean-Claude Gumy; Hélène Chanvrier. 2011. "Effect of fibers and whole grain content on quality attributes of extruded cereals." Procedia Food Science 1, no. : 17-23.
Solar dryers are increasingly used in developing countries as an alternative to drying in open air, however the inherent variability of the drying conditions during day and along year drive the need for achieving low cost sensors that would enable to characterize the drying process and to react accordingly. This paper provides three different and complementary approaches for model based sensors that make use of the psychrometric properties of the air inside the drying chamber and the temperature oscillations of the wood along day. The simplest smart sensor, Smart-1, using only two Sensirion sensors, allows to estimate the accumulated water extracted from wood along a complete drying cycle with a correlation coefficient of 0.97. Smart-2 is a model based sensor that relays on the diffusion kinetics by means of assesing temperature and relative humidity of the air inside the kiln. Smart-2 model allows to determine the diffusivity, being the average value of D for the drying cycle studied equal to 5.14×10-10m2s-1 and equal to 5.12× 10-10m2s-1 for two experiments respectively. The multidistributed supervision of the dryer shows up the lack of uniformity in drying conditions supported by the wood planks located in the inner or center of the drying chamber where constant drying rate kinetics predominate. Finally, Smart-3 indicates a decreasing efficiency along the drying process from 0.9 to 0.2. © 2011 Elsevier B.V.Peer Reviewe
E. Correa-Hernando; F.J. Arranz; B. Diezma; E. Juliá; José Ignacio Robla; L. Ruiz-García; Javier Garcia-Hierro; Pilar Barreiro. Development of model based sensors for the supervision of a solar dryer. Computers and Electronics in Agriculture 2011, 78, 167 -175.
AMA StyleE. Correa-Hernando, F.J. Arranz, B. Diezma, E. Juliá, José Ignacio Robla, L. Ruiz-García, Javier Garcia-Hierro, Pilar Barreiro. Development of model based sensors for the supervision of a solar dryer. Computers and Electronics in Agriculture. 2011; 78 (2):167-175.
Chicago/Turabian StyleE. Correa-Hernando; F.J. Arranz; B. Diezma; E. Juliá; José Ignacio Robla; L. Ruiz-García; Javier Garcia-Hierro; Pilar Barreiro. 2011. "Development of model based sensors for the supervision of a solar dryer." Computers and Electronics in Agriculture 78, no. 2: 167-175.
This review covers developments in non-invasive techniques for quality analysis and inspection of specialty crops, mainly fresh fruits and vegetables, over the past decade up to the year 2010. Presented and discussed in this review are advanced sensing technologies including computer vision, spectroscopy, X-rays, magnetic resonance, mechanical contact, chemical sensing, wireless sensor networks and radio-frequency identification sensors. The current status of different sensing systems is described in the context of commercial application. The review also discusses future research needs and potentials of these sensing technologies. Emphases are placed on those technologies that have been proven effective or have shown great potential for agro-food applications. Despite significant progress in the development of non-invasive techniques for quality assessment of fruits and vegetables, the pace for adoption of these technologies by the specialty crop industry has been slow.
Margarita Ruiz Altisent; Luis Ruiz-Garcia; G.P. Moreda; Renfu Lu; Natalia Hernandez Sanchez; Eva Correa; B. Diezma; Bart Nicolai; Francisco Javier García Ramos. Sensors for product characterization and quality of specialty crops—A review. Computers and Electronics in Agriculture 2010, 74, 176 -194.
AMA StyleMargarita Ruiz Altisent, Luis Ruiz-Garcia, G.P. Moreda, Renfu Lu, Natalia Hernandez Sanchez, Eva Correa, B. Diezma, Bart Nicolai, Francisco Javier García Ramos. Sensors for product characterization and quality of specialty crops—A review. Computers and Electronics in Agriculture. 2010; 74 (2):176-194.
Chicago/Turabian StyleMargarita Ruiz Altisent; Luis Ruiz-Garcia; G.P. Moreda; Renfu Lu; Natalia Hernandez Sanchez; Eva Correa; B. Diezma; Bart Nicolai; Francisco Javier García Ramos. 2010. "Sensors for product characterization and quality of specialty crops—A review." Computers and Electronics in Agriculture 74, no. 2: 176-194.