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Biotransformation of tea catechins into theaflavins with immobilized polyphenol oxidase
, 2009 Theaflavins, an active antioxidant, a natural pigment and pharmacologically active molecule obtained from black tea were bioprocessed on an immobilized tea polyphenol oxidase (PPO) system by the conversion of tea catechins extracted from green tea leaves
Bari, S S, Singh , H P, Sharma , K
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application/pdfThe pH, polyphenol content and polyphenol oxidase (PPO) activity in stem end, middle, and bud end of Norin No. 1 potatoes, one of processing varieties in Japan, were measured to investigate their respective distributions. The stem end area
小嶋, 道之 +10 more
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Substrate specificity of polyphenol oxidase
Critical Reviews in Biochemistry and Molecular Biology, 2020The ubiquitous type-3 copper enzyme polyphenol oxidase (PPO) has found itself the subject of profound inhibitor research due to its role in fruit and vegetable browning and mammalian pigmentation. The enzyme itself has also been applied in the fields of bioremediation, biocatalysis and biosensing.
Ivanhoe K H Leung
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Characterization of polyphenol oxidase in coffee
Phytochemistry, 2000Polyphenol oxidase (PPO) was characterized in partially purified extracts of leaves (PPO-L) and fruit endosperm (PPO-E) of coffee (Coffea arabica L.). PPO activity was higher in early developmental stages of both leaves and endosperm of fruits. Wounding or exposure of coffee leaves to methyl jasmonate increased PPO activity 1.5-4-fold.
Paulo Mazzafera, Simon P Robinson
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Polyphenol oxidase: The chloroplast oxidase with no established function
Physiologia Plantarum, 1988Vaughn, K. C, Lax, A. R. and Duke, S. O. 1988. Polyphenol oxidase: The chloroplast oxidase with no established function. ‐ Physiol. Plant. 72: 659–665.Polyphenol oxidase (PPO) is an enzyme localized on the thylakoids of chloroplasts and in vesicles or other bodies in non‐green plastid types.
Kevin C Vaughn +2 more
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Recent advances in polyphenol oxidase-mediated plant stress responses
Phytochemistry, 2021Xiaoling Sun
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Inhibitory effects of organic acids on polyphenol oxidase: From model systems to food systems
Critical Reviews in Food Science and Nutrition, 2020Lei Zhou, Liqiang Zou, Chengmei Liu
exaly
Purification and characterization of polyphenol oxidase from sp.
Food Chemistry, 2006Mustafa Erat +2 more
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Characterization of polyphenol oxidase from butter lettuce (Lactuca sativa var. capitata L.)
Food Chemistry, 2008Urszula Gawlik-Dziki +2 more
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