Ascorbic Acid
Mostrando 13-24 de 720 artigos, teses e dissertações.
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13. Functional sirkencubin syrup with purple basil; bioactive properties, organoleptic acceptability, and possible effects on blood pressure
Abstract Sirkencubin syrup is a health-friendly alternative drink consisting of a mixture of honey, vinegar and water. In this study, purple basil sirkencubin syrup and the changes in sirkencubin syrup during two months storage period (1, 10, 20, 30 & 60 days) were investigated. Physicochemical properties, bioactive properties, organoleptic properties, gener
Food Sci. Technol. Publicado em: 2020-12
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14. Physical-chemical characterization, microbiological and biocompounds of cashew pulp in industrial and freezing processing
Abstract This study aimed to evaluate the nutritional characteristics, bioactive compounds and microbiological quality during the processing and frozen storage of cashew pulps. Cashew pulps from 4 batches and 3 different sequential stages of industrial processing and storage (after pulping, after pulp thawing that was stored for 3 months in a drum, and 90 da
Food Sci. Technol. Publicado em: 2020-09
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15. Effects of citrox treatment on the survival of Methicillin-Resistant Staphylococcus aureus (MRSA) in chicken fillets packed under vacuum
Abstract Citrox has natural antibacterial effect against many foodborne pathogens and contaminated bacteria. It mainly contains citric acid, ascorbic acid, and malic acid. We studied the antimicrobial effects of citrox solution (1% and 2%) on the total viable count of methicillin-resistant Staphylococcus aureus (MRSA) on chicken meat fillet. The samples were
Food Sci. Technol. Publicado em: 2020-09
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16. Analysis of bioactive compounds in umbu (Spondias tuberosa) by application of edible coating based on Chlorella sp during storage
Abstract The use of edible coating has been an alternative to maintain the quality of vegetables and prolong their post-harvest life. This study aims to evaluate bioactive compounds in Spondias tuberosa submitted to different coating formulations based on Chlorella sp. associated with the pomegranate seed oil, to establish the one that best maintains post-ha
Food Sci. Technol. Publicado em: 2020-09
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17. Physicochemical quality of brown soybean preserve in function of maceration time and ascorbic acid
Abstract The aim of the present study was to evaluate the physical and chemical quality of the brown soybean preserve in function of the ascorbic acid concentration and the maceration time, and also to evaluate the chemical composition, microbiological hazard, and acceptability of the best preserve, in addition verify its technological, nutritional, functio
Food Sci. Technol. Publicado em: 2020-06
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18. Evaluation of Carbon Nanotubes/Polyaniline Thin Films for Development of Electrochemical Sensors
Thin films of multiwalled carbon nanotubes/polyaniline nanocomposites (CNT/PAni) were synthesized through the liquid/liquid (L/L) interfacial route, deposited over glass substrates, and evaluated through cyclic voltammetry and amperometry as electrochemical sensor, using L-ascorbic acid as probe. Films with three different CNT/PAni ratios have been prepared.
J. Braz. Chem. Soc.. Publicado em: 2020-06
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19. Promoters effectiveness in the improvement in iron and zinc absorption from the rice and bean
Abstract Iron and zinc are essential micronutrients for the organism functioning and their lack can result in prejudices to human health. The information about the presence of minerals in the diet are normally referred to its total concentrations, however these values do not reproduce the fraction that might be bioaccessible for the human body. The objective
Food Sci. Technol. Publicado em: 2020-06
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20. Amassing of Hydroxymethylfurfural, 2- Furfural and 5- Methyl furfural in orange (Citrus reticulata) juice during storage
Abstract Vitamin C is imperative component of our nutrition and used as additive in many foods owing to its high antioxidant activity. The degradation of vitamin C content in orange juice during storage was evaluated in this study. Degradation of vitamin C in orange juice during 40 days storage at 0, 05, 15, 25, and 40 °C was analyzed and evaluated. Hydroxy
Food Sci. Technol. Publicado em: 2020-06
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21. Preharvest nitrogen application affects quality and antioxidant status of two tomato cultivars
ABSTRACT Intensive horticultural crop production usually involves challenges from excessive application of fertilizer, mainly nitrogen (N). The effect of N fertilizer on the fruit quality and antioxidant status of two cherry tomato cultivars (Caballero and Victoria) under greenhouse conditions was performed. Nitrogen treatments were applied ranging from cond
Bragantia. Publicado em: 2020-03
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22. Postharvest 1-methylcyclopropene treatments maintain the quality of Rosa sterilis D. shi during storage
Abstract Effects of different concentrations of aqueous 1-methylcyclopropene (1-MCP) on Rosa sterilis D. shi fruits were investigated. The fruits were harvested at commercial maturity stage and treated with 1-MCP treatment at 0.5, 1.0, and 1.5 μL L-1 for 20 h at 25 °C in an air tight chamber along with control sample to evaluate the effect of 1-MCP concent
Food Sci. Technol. Publicado em: 2020-03
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23. Antioxidant and prebiotic effects of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats
Abstract The aim of this study was to evaluate the antioxidant and prebiotic effect of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats. To obtain the beverage, a Response Surface Methodology was used, with concentration of yacon extract (x1) and the sweetener (x2) added to a mixture of tropical fruits as independent variable
Food Sci. Technol. Publicado em: 2020-03
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24. Evaluation of a Graphite-Polyurethane Composite Electrode Modified with Copper Nanoparticles as an Amperometric Flow Detector in a Wall-Jet System for the Determination of Cysteine
A graphite-polyurethane composite electrode (GPUE) was modified by electrodeposition of copper nanoparticles (CuNP) followed by electrochemical treatment in NaOH (GPUE-CuNP), in order to prepare an amperometric sensor for the determination of cysteine (Cys). Cyclic votammograms of Cys solutions at GPUE-CuNP allowed the description of a sequence of electroche
J. Braz. Chem. Soc.. Publicado em: 2020-02