Results 11 to 20 of about 32,414 (257)
An In Vitro Catalysis of Tea Polyphenols by Polyphenol Oxidase [PDF]
Molecules, 2023 Tea polyphenol (TPs) oxidation caused by polyphenol oxidase (PPO) in manufacturing is responsible for the sensory characteristics and health function of fermented tea, therefore, this subject is rich in scientific and commercial interests. In this work, an in vitro catalysis of TPs in liquid nitrogen grinding of sun-dried green tea leaves by PPO was ...
Kunyi Liu, Qiuyue Chen, Li Ruoyu
exaly +5 more sources
Olive Polyphenol Oxidase Gene Family [PDF]
International Journal of Molecular Sciences, 2023 The phenolic compounds containing hydroxytyrosol are the minor components of virgin olive oil (VOO) with the greatest impact on its functional properties and health benefits. Olive breeding for improving the phenolic composition of VOO is strongly dependent on the identification of the key genes determining the biosynthesis of these compounds in the ...
CARLOS Sanz +2 more
exaly +5 more sources
Forage polyphenol oxidase and ruminant livestock nutrition [PDF]
Frontiers in Plant Science, 2014 Polyphenol oxidase (PPO) is associated with the detrimental effect of browning fruit and vegetables, however interest within PPO containing forage crops has grown since the brownng reaction was associated with reduced nitrogen (N) losses in silo and the
Michael Lee
exaly +6 more sources
Insight of Polyphenol Oxidase Enzyme Inhibition and Total Polyphenol Recovery from Cocoa Beans
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.
Luis Javier Lopez-Giraldo +2 more
exaly +3 more sources
Polyphenol Oxidase as a Biochemical Seed Defense Mechanism [PDF]
Frontiers in Plant Science, 2014 Seed dormancy and resistance to decay are fundamental survival strategies, which allow a population of seeds to germinate over long periods of time. Seeds have physical, chemical, and biological defense mechanisms that protect their food reserves from ...
E. Patrick Fuerst +3 more
doaj +3 more sources
Purification and Enzymatic Properties of Soluble and Membrane-Bound Polyphenol Oxidase from Agaricus bisporus [PDF]
Shipin Kexue, 2023 An extraction and purification method for soluble polyphenol oxidase (sPPO) and membrane-bound polyphenol oxidases (mPPO) from Agaricus bisporus was developed involving temperature-induced phase partitioning, fractional precipitation with ammonium ...
HE Xingxing, LEI Jing, GUAN Wenqiang
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Antioxidant enzymes in the needles of different omorika lines [PDF]
Archives of Biological Sciences, 2005 Picea omorika (Panč) Purkyně (Serbian spruce) is a Balkan endemic coniferous species. We studied soluble peroxidase, catalase, polyphenol oxidase, and superoxide-dismutase activity in the needles of five omorika lines grown in a generative seed orchard ...
Bogdanović Jelena +6 more
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Fermentation, 2023 Polyphenol oxidase and its isoenzymes are crucial enzymes in the tea tree that catalyze the synthesis of theaflavins. In this study, tea tree polyphenol oxidase was used as the research object, and various protein sequence treatments, such as TrxA fusion
Changwei Liu +4 more
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Shipin gongye ke-ji, 2022 In this study, 42 strains of microorganisms were isolated by traditional culture methods from the fermentation process of Liupao tea. The agar plate screening and liquid culture second round of screening was used to select microorganisms from 42 strains ...
Jie WANG +5 more
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MEKANISME INHIBISI ENZIM POLIFENOL OKSIDASE PADA SARI BUAH MARKISA DENGAN SISTEIN DAN ASAM ASKORBAT1
Jurnal Riset Kimia, 2015 The mechanism of polyphenol oxidase enzyme inhibition was studied by isolation of enzyme from the passion fruite juice (Passiflora Sp). The extracted enzyme polyphenol oxidase has an optimum activity at pH 5,6 and temperature of 300 C using a pirogalol ...
Elida Mardiah
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