Lucas Ouros

Mr. Lucas Ouros

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 September 2024 in Horticulturae
Verified
Journal Article
Open access
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Sarita LeonelSarita Leonel
Sarita Leonel
MLMagali Leonel
Magali Leonel
PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
MTMARCO ANTONIO TECCHIO
MARCO ANTONIO TECCHIO
MSMarcelo de Souza Silva
Marcelo de Souza Silva
LOLucas Ouros
Lucas Ouros
Sustainable agricultural practices need to be continuously sought after so that a greater number of producers can adopt them, taking into account, above all, the food security scenario, land use efficiency, and climate change. Intercropping—a cultivation system in which two or more species are grown in close proximity in the same field—is one strategy to increase diversity in the agroecosystem. However, for intercropping systems to be adopted, their productive and economic advantages over monoculture must be clearly demonstrated. Banana (Musa sp.) growers are interested in crop diversification as a potential strategy to increase production yields and, consequently, economic income. The management of banana crops can be facilitated by intercropping, as this system plays an important role in increasing biodiversity and reducing the need for weed control in the crop rows, promoting better land use efficiency. However, this system should be evaluated alongside other indicators. Banana intercropping has significant potential and many benefits, but success depends on the interaction between the component species, appropriate management practices, and favorable environmental conditions. This review aims to provide an overview of recent studies on banana intercropping systems, focusing on the contextualization of land use, monoculture and intercropping, and evaluating intercropping indicators, as well as the benefits, risks, and disadvantages discussed in the literature, and the main outcomes of banana-based intercropping systems. The main findings relate to the possibility of using intercrops with aromatic species and the preliminary reports on the contributions of intercrops to the suppression of Fusarium wilt disease.

16 October 2023 in Horticulturae
Verified
Journal Article
Open access
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JSJúlia Silva Pereira dos Santos
Júlia Silva Pereira dos Santos
MLMagali Leonel
Magali Leonel
PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
Sarita LeonelSarita Leonel
Sarita Leonel
AFAdalton Mazetti Fernandes
Adalton Mazetti Fernandes
LOLucas Ouros
Lucas Ouros
Fried foods occupy a large portion of the fast-food market. However, growing consumer health awareness is driving research to minimize the oil content of products. The use of specific barriers such as hydrocolloid coatings can avoid high oil absorption. Herein, the physicochemical characteristics of banana fruit cultivars and the effects of hydrocolloid coatings on the quality attributes of banana chips were evaluated. The unripe fruits were analyzed for length, diameter, mass, pulp/peel ratio, firmness, and color. The pulps were analyzed for moisture, total and reducing sugars, crude fat, total soluble solids, pH, titratable acidity, and maturation index. Pulp slices were coated before frying with four hydrocolloid solutions: guar gum, carboxymethylcellulose, sodium alginate, and maltodextrin. The fruits of the cultivar BRS Platina were larger, with a more yellowish pulp and those of FHIA 18 had smaller lengths and diameters. After frying, higher moisture losses were observed in the control and in the treatment with maltodextrin. Hydrocolloids promoted reductions in oil absorption from 26.54 to 9.14%, in addition to changes in the color and hardness of the chips. A coating pretreatment can be used to produce low-fat banana chips, with better results using guar gum. Our results are useful in expanding the commercialization of fruits that fall easily and the chip coating technology can be applied in snack industries.

10 September 2024 in Horticulturae
Verified
Journal Article
Open access
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PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
MLMagali Leonel
Magali Leonel
Sarita LeonelSarita Leonel
Sarita Leonel
HCHebert Teixeira Cândido
Hebert Teixeira Cândido
LOLucas Ouros
Lucas Ouros
ENEdson Shigueaki Nomura
Edson Shigueaki Nomura
Bananas are one of the most consumed fruits in the world and are essential for food security and in the agricultural economy. Their sustainable production is vital for many communities. Herein, the effects of banana cultivars, cropping systems (monocropping and intercropping with lemongrass), and the interaction between these factors on the physicochemical characteristics of ripe and unripe fruit were evaluated. The intercropping of bananas with lemongrass did not alter the main quality indicators of the fruit. The ripe fruits of the SCS451 Catarina cultivar stood out for their higher fruit mass, pulp/peel ratio, and firmness, while the fruits of the Prata Anã and BRS FHIA Maravilha cultivars had the highest SS, SS/TA ratio, pH, and reducing and total sugars. The cultivar SCS451 Catarina had the highest mineral content in the unripe fruit, and for all cultivars, the order of mineral levels was K > N > Mg > P > Ca > Fe > Zn. The higher content of total and resistant starch in the unripe fruit of the Prata Anã and BRS FHIA Maravilha cultivars, combined with the characteristics of the ripe fruit, make them suitable for both fresh consumption and industrial use. Diversifying cultivars improves the quality of banana fruit, and intercropping with lemongrass can be a sustainable method of managing banana fields.

23 June 2025 in Plants
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Journal Article
Open access
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HCHebert Teixeira Cândido
Hebert Teixeira Cândido
MLMagali Leonel
Magali Leonel
Sarita LeonelSarita Leonel
Sarita Leonel
AFAdalton Mazetti Fernandes
Adalton Mazetti Fernandes
JSJackson Mirellys Azevedo Souza
Jackson Mirellys Azevedo Souza
PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
The genetic diversity of banana plants (Musa spp.) can result in different phosphorus requirements, highlighting the importance of studies performed to optimize phosphate fertilization in order to improve the productivity and sustainability of banana plantations. This study assessed the effects of phosphate fertilization on the duration of the harvest season, bunch mass, soil fertility and foliar nutrition of BRS SCS Belluna banana plants. A replicated trial was performed in two consecutive harvests, with different phosphorus levels, i.e., 25, 50, 75, 100, 125 and 150% of the recommended level for the crop. Soil analyses included macro- and micronutrients, silicon, acidity, organic matter, cation exchange capacity and base saturation. Leaf tissue was analyzed for mineral content. Thermophosphate had different effects on soil fertility and leaf nutrients. Calcium and phosphorus in the soil increased linearly. In the leaf, a reduction in zinc content was mainly observed. The lower temperatures and accumulated rainfall that occurred during the second harvest season are related to a greater number of days between flowering and harvest and a lower bunch mass. These results could support fertilization programs aimed at ensuring the long-term sustainability of phosphorus nutrition in banana plantations.

1 January 2024 in Revista Caatinga
Verified
Journal Article
Open access
PDF file
PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
Sarita LeonelSarita Leonel
Sarita Leonel
MLMagali Leonel
Magali Leonel
HCHebert Teixeira Cândido
Hebert Teixeira Cândido
NMNicholas Zanette Molha
Nicholas Zanette Molha
MTMARCO ANTONIO TECCHIO
MARCO ANTONIO TECCHIO
Diversifying cultivars and intercropping with lemongrass can innovative strategies for banana growers to enhance the variety, profitability and sustainability of their orchards and to adapt to climate change. This study took place in the state of São Paulo, a subtropical region of southeastern Brazil and assessed the duration of the cropping cycles, growth and yield performance, and leaf nutritional content of banana cultivars BRS FHIA Maravilha, SCS 451 Prata Catarina, BRS Pacoua and Prata Anã when intercropped with lemongrass. The field experiment spanned two consecutive growing seasons. The growth, yield and nutrient content in the leaves of banana cultivars exhibited similar performance in both monoculture and intercropping with lemongrass. A shorter cycle was observed only in the first harvest with the lemongrass intercrop. The Prata Anã cultivar stood out for its earlier cycle, lower plant height and higher average yield per year. These findings are valuable for planning cultivar diversification in new orchards, exploring the potential for intercropping with lemongrass, and identifying the genotypes and cropping systems that are better suited to adverse climatic conditions.

21 May 2025 in Agriculture
Verified
Journal Article
Open access
PDF file
LOLucas Ouros
Lucas Ouros
MLMagali Leonel
Magali Leonel
Sarita LeonelSarita Leonel
Sarita Leonel
NMNicholas Zanette Molha
Nicholas Zanette Molha
PJPaulo Ricardo Rodrigues de Jesus
Paulo Ricardo Rodrigues de Jesus
COCaio Cesar Ouros
Caio Cesar Ouros
Banana inflorescences are usually discarded, but there has been interest in managing this by-product to turn it into a product with added value. Herein, the inflorescences of seven cultivars were processed into flour and evaluated for their physicochemical characteristics. The weight of the inflorescences ranged from 681.3 to 1245.4 g, with bracts accounting for more than 40%. The Prata Anã cultivar had the largest inflorescence. The part of the inflorescence was the main factor differentiating the flours, with the effect of the cultivar dependent on the part processed. All flours had high levels of fiber (27.70–41.91 g/100 g) and carbohydrates (19.30–33.96 g/100 g). The palm flours were differentiated by their higher levels of protein (17.4–19.4 g/100 g), and the flower flours by their higher levels of lipids (5.89–7.97 g/100 g). The bract flours had a higher water holding capacity (5.62–6.78%) and browning index (40.7–42). The bract and flower flours were less dissimilar. Results revealed the high nutritional quality of the flours and the prospect of using them as a non-conventional food source. Understanding the differences between banana inflorescence flours expands their possible uses and promotes sustainable agricultural production in terms of efficient banana by-product management.