Raquel P. F. Guiné

Prof. Dr. Raquel P. F. Guiné

Polytechnic Institute of Viseu
orcid

Research Focus & Metrics

Academic Career Length

26Years (2001-Present)

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

Representative Publications

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3 June 2021 in Foods
Verified
Journal Article
Open access
PDF file
Chinaza Godswill AwuchiChinaza Godswill Awuchi
Chinaza Godswill Awuchi
EOErick Nyakundi Ondari
Erick Nyakundi Ondari
COChukwuka Ogbonna
Chukwuka Ogbonna
AUAnjani K. Upadhyay
Anjani K. Upadhyay
KBKatarzyna Baran
Katarzyna Baran
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Mycotoxins are produced by fungi and are known to be toxic to humans and animals. Common mycotoxins include aflatoxins, ochratoxins, zearalenone, patulin, sterigmatocystin, citrinin, ergot alkaloids, deoxynivalenol, fumonisins, trichothecenes, Alternaria toxins, tremorgenic mycotoxins, fusarins, 3-nitropropionic acid, cyclochlorotine, sporidesmin, etc. These mycotoxins can pose several health risks to both animals and humans, including death. As several mycotoxins simultaneously occur in nature, especially in foods and feeds, the detoxification and/or total removal of mycotoxins remains challenging. Moreover, given that the volume of scientific literature regarding mycotoxins is steadily on the rise, there is need for continuous synthesis of the body of knowledge. To supplement existing information, knowledge of mycotoxins affecting animals, foods, humans, and plants, with more focus on types, toxicity, and prevention measures, including strategies employed in detoxification and removal, were revisited in this work. Our synthesis revealed that mycotoxin decontamination, control, and detoxification strategies cut across pre-and post-harvest preventive measures. In particular, pre-harvest measures can include good agricultural practices, fertilization/irrigation, crop rotation, using resistant varieties of crops, avoiding insect damage, early harvesting, maintaining adequate humidity, and removing debris from the preceding harvests. On the other hand, post-harvest measures can include processing, chemical, biological, and physical measures. Additionally, chemical-based methods and other emerging strategies for mycotoxin detoxification can involve the usage of chitosan, ozone, nanoparticles, and plant extracts.

4 December 2021 in Foods
Verified
Journal Article
Open access
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KKKrishan Kumar
Krishan Kumar
Rahul MehraRahul Mehra
Rahul Mehra
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Maria João LimaMaria João Lima
Maria João Lima
NKNaveen Kumar
Naveen Kumar
Harish KumarHarish Kumar
Harish Kumar
Mushrooms are well-known functional foods due to the presence of a huge quantity of nutraceutical components. These are well recognized for their nutritional importance such as high protein, low fat, and low energy contents. These are rich in minerals such as iron, phosphorus, as well as in vitamins like riboflavin, thiamine, ergosterol, niacin, and ascorbic acid. They also contain bioactive constituents like secondary metabolites (terpenoids, acids, alkaloids, sesquiterpenes, polyphenolic compounds, lactones, sterols, nucleotide analogues, vitamins, and metal chelating agents) and polysaccharides chiefly β-glucans and glycoproteins. Due to the occurrence of biologically active substances, mushrooms can serve as hepatoprotective, immune-potentiating, anti-cancer, anti-viral, and hypocholesterolemic agents. They have great potential to prevent cardiovascular diseases due to their low fat and high fiber contents, as well as being foremost sources of natural antioxidants useful in reducing oxidative damages. However, mushrooms remained underutilized, despite their wide nutritional and bioactive potential. Novel green techniques are being explored for the extraction of bioactive components from edible mushrooms. The current review is intended to deliberate the nutraceutical potential of mushrooms, therapeutic properties, bioactive compounds, health benefits, and processing aspects of edible mushrooms for maintenance, and promotion of a healthy lifestyle.

18 September 2020 in Foods
Verified
Journal Article
Open access
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Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
SFSofia G. Florença
Sofia G. Florença
Maria João Mendes Cardoso BarrocaMaria João Mendes Cardoso Barroca
Maria João Mendes Cardoso Barroca
Ofélia AnjosOfélia Anjos
Ofélia Anjos
New lifestyles, higher incomes and better consumer awareness are increasing the demand for a year-round supply of innovative food products. In past decades, important developments have been achieved in areas related to food and the food industry. This review shows that factors influencing performance in new product development (NPD) are dynamic and continuously guiding project development. The data obtained by direct involvement of consumers can impact positively successful product development and enhance the company’s financial performance. The study of consumer behaviour and attitudes towards new foods encompasses multiple aspects, such as preference, choice, desire to eat certain foods, buying intentions and frequency of consumption. Additionally, both the consumers’ willingness to purchase and the willingness to pay a premium are important in NPD, launching and success.

16 February 2022 in Antioxidants
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Journal Article
Open access
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Piyush KashyapPiyush Kashyap
Piyush Kashyap
Shiv KumarShiv Kumar
Shiv Kumar
CRCharanjit Singh Riar
Charanjit Singh Riar
NJNavdeep Jindal
Navdeep Jindal
PBPoonam Baniwal
Poonam Baniwal
Harish KumarHarish Kumar
Harish Kumar
Based on the availability of many nutrients, Moringa oleifera tree leaves have been widely employed as nutrients and nutraceuticals in recent years. The leaves contain a small amount of anti-nutritional factors and are abundant in innumerable bioactive compounds. Recently, in several in vivo and in vitro investigations, moringa leaves’ bioactive components and functionality are highlighted. Moringa leaves provide several health advantages, including anti-diabetic, antibacterial, anti-cancer, and anti-inflammatory properties. The high content of phytochemicals, carotenoids, and glucosinolates is responsible for the majority of these activities as reported in the literature. Furthermore, there is growing interest in using moringa as a value-added ingredient in the development of functional foods. Despite substantial study into identifying and measuring these beneficial components from moringa leaves, bioaccessibility and bioavailability studies are lacking. This review emphasizes recent scientific evidence on the dietary and bioactive profiles of moringa leaves, bioavailability, health benefits, and applications in various food products. This study highlights new scientific data on the moringa leaves containing nutrient and bioactive profiles, bioavailability, health benefits, and uses in various food items. Moringa has been extensively used as a health-promoting food additive because of its potent protection against various diseases and the widespread presence of environmental toxins. More research is needed for utilization as well as to study medicinal effects and bioaccesibility of these leaves for development of various drugs and functional foods.

1 January 2012 in Food and Bioproducts Processing
Verified
Journal Article
Closed access
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Maria João Mendes Cardoso BarrocaMaria João Mendes Cardoso Barroca
Maria João Mendes Cardoso Barroca

20 June 2021 in Foods
Verified
Journal Article
Open access
PDF file
James ChachaJames Chacha
James Chacha
LZLiyan Zhang
Liyan Zhang
Chigozie OfoeduChigozie Ofoedu
Chigozie Ofoedu
Rashid SuleimanRashid Suleiman
Rashid Suleiman
JDJoachim Dotto
Joachim Dotto
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
The push for non-thermal food processing methods has emerged due to the challenges associated with thermal food processing methods, for instance, high operational costs and alteration of food nutrient components. Non-thermal food processing involves methods where the food materials receive microbiological inactivation without or with little direct application of heat. Besides being well established in scientific literature, research into non-thermal food processing technologies are constantly on the rise as applied to a wide range of food products. Due to such remarkable progress by scientists and researchers, there is need for continuous synthesis of relevant scientific literature for the benefit of all actors in the agro-food value chain, most importantly the food processors, and to supplement existing information. This review, therefore, aimed to provide a technological update on some selected non-thermal food processing methods specifically focused on their operational mechanisms, their effectiveness in preserving various kinds of foods, as revealed by their pros (merits) and cons (demerits). Specifically, pulsed electric field, pulsed light, ultraviolet radiation, high-pressure processing, non-thermal (cold) plasma, ozone treatment, ionizing radiation, and ultrasound were considered. What defines these techniques, their ability to exhibit limited changes in the sensory attributes of food, retain the food nutrient contents, ensure food safety, extend shelf-life, and being eco-friendly were highlighted. Rationalizing the process mechanisms about these specific non-thermal technologies alongside consumer education can help raise awareness prior to any design considerations, improvement of cost-effectiveness, and scaling-up their capacity for industrial-level applications.