Recombinant polyphenol oxidases for production of theaflavins from tea polyphenols.
Sign Up to like & getrecommendations! Published in 2019 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2019.04.142
Abstract: Theaflavins (TFs) have attracted much attention due to their various bioactivities in black tea. This paper describes the first trial for enzymatic production of TFs by recombinant polyphenol oxidases (PPOs). PPO genes were cloned from… read more here.
Keywords: production; polyphenol oxidases; enzyme; tea polyphenols ... See more keywords
Biochemical and structural characterization of tomato polyphenol oxidases provide novel insights into their substrate specificity
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-39687-0
Abstract: Polyphenol oxidases (PPOs) contain the structurally similar enzymes tyrosinases (TYRs) and catechol oxidases (COs). Two cDNAs encoding pro-PPOs from tomato (Solanum lycopersicum) were cloned and heterologously expressed in Escherichia coli. The two pro-PPOs (SlPPO1-2) differ… read more here.
Keywords: polyphenol oxidases; tomato; kcat; polyphenol ... See more keywords
Polyphenol oxidases exhibit promiscuous proteolytic activity
Sign Up to like & getrecommendations! Published in 2020 at "Communications Chemistry"
DOI: 10.1038/s42004-020-0305-2
Abstract: Tyrosinases catalyse both the cresolase and catecholase reactions for the formation of reactive compounds which are very important for industrial applications. In this study, we describe a proteolytic activity of tyrosinases. Two different tyrosinases originating… read more here.
Keywords: promiscuous proteolytic; proteolytic activity; polyphenol oxidases; exhibit promiscuous ... See more keywords