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Ultrasound-assisted enzymatic extraction of dark tea total polyphenols [PDF]
Frontiers in NutritionTea polyphenols have become the most biologically active components in tea, and they are also one of the key factors determining the color, flavor, health benefits.
Jinhua Shao +6 more
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TOTAL POLYPHENOLS IN ELDERBERRIES
Food and Environment Safety, 2023 The aim of this study was to investigate the total content of phenolic compounds in wild Elderberry fruits. Black elder, as a shrub has been known since ancient times to have beneficial effects on human health.
Mirela Lacramioara MOCANU (ISAC) +1 more
doaj +3 more sources
Automated determination of total polyphenols in apple juice [PDF]
Zeitschrift f�r Lebensmittel-Untersuchung und -Forschung, 1993 An automated method of total polyphenols analysis in apple juice using the Folin-Ciocalteu reagent is presented. Chlorogenic acid was selected as the standard since a similar kinetic behaviour, standard-sample, was observed. A straightforward method with good reproducibility (CV < 1%), sampling frequency (48 h-1) and correlation with the traditional ...
Mangas Alonso, Juan J. +2 more
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Croatian Journal of Food Science and Technology, 2021 Spectrophotometric methods for the determination of total polyphenols and total flavonoids are often used because they are simple, sensitive, and precise.
Petra Matić, Lidija Jakobek
doaj +1 more source
Shipin gongye ke-ji, 2023 In this paper, Phyllanthus emblica from Guangdong, Guangxi, Fujian, Yunnan and Hainan were selected, and the content of polyphenols and antioxidant activities were compared and analyzed by subcritical water extraction, microwave-hot water extraction ...
Xiaoqiang LI +5 more
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Insight of Polyphenol Oxidase Enzyme Inhibition and Total Polyphenol Recovery from Cocoa Beans [PDF]
Antioxidants, 2020 A full factorial design (ascorbic acid/l-cysteine inhibitors, temperature, and time as factors) study was conducted to enhance inhibition of polyphenol oxidase (PPO) activity without decreasing cocoa polyphenol concentrations. The data obtained were modelled through a new equation, represented by Γ, which correlates both high polyphenol content with ...
Said Toro-Uribe +4 more
openaire +3 more sources
Shipin gongye ke-ji, 2023 To compare the contents of active ingredients and antioxidant activity of Rosa roxburghii Tratt juice (RRTJ), pomegranate juice (PJ) and blueberry juice (BJ) and investigate the protective effects of three kinds of fruit juices against dextran sulfate ...
Ting ZHOU +9 more
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Foods, 2023 Given global coffee consumption, substantial quantities of spent coffee grounds (SCGs) are generated annually as a by-product of brewing coffee. SCG, although rich in bioactive compounds, is nowadays disposed of. The objective of this study is to compare,
Ibtissam Bouhzam +6 more
doaj +1 more source
Physicochemical characterization and in vitro evaluation of the antioxidant and anticandidal activities of Moroccan propolis [PDF]
Veterinary World, 2022 Background and Aim: Human mycotic infections are one of the major health problems worldwide. Prolonged use of antimycotic drugs has contributed to the development of resistance in pathogenic fungi.
Abderrazak Aboulghazi +3 more
doaj +1 more source
Comparison of 24-h volume and creatinine-corrected total urinary polyphenol as a biomarker of total dietary polyphenols in the Invecchiare InCHIANTI study [PDF]
Analytica Chimica Acta, 2011 Polyphenols have beneficial effects on several chronic diseases but assessing polyphenols intake from self-reported dietary questionnaires tends to be inaccurate and not very reliable. A promising alternative is to use urinary excretion of polyphenols as a proxy measure of intake.
Zamora Ros R +7 more
openaire +4 more sources