Author

Sayaka Watarumi

Observed name: S WATARUMI

Institution: Nagasaki University

Observed institutions: Fukuoka University, Nagasaki University

OpenAlex ID: A5083343006

Production of theasinensins A and D, epigallocatechin gallate dimers of black tea, by oxidation–reduction dismutation of dehydrotheasinensin A

2003 · Takashi Tanaka, Sayaka Watarumi, et al. · Tetrahedron · 105

Accumulation of Epigallocatechin Quinone Dimers during Tea Fermentation and Formation of Theasinensins

2002 · Takashi Tanaka, Chie Mine, et al. · Journal of Natural Products · 81

New black tea polyphenol having -ethyl-2-pyrrolidinone moiety derived from tea amino acid theanine: isolation, characterization and partial synthesis

2004 · T TANAKA, S WATARUMI, et al. · Food Chemistry · 73

Polyphenol Composition of a Functional Fermented Tea Obtained by Tea-Rolling Processing of Green Tea and Loquat Leaves

2011 · Takuya Shii, Takashi Tanaka, et al. · Journal of Agricultural and Food Chemistry · 43

Production and degradation mechanism of theacitrin C, a black tea pigment derived from epigallocatechin-3-O-gallate via a bicyclo[3.2.1]octane-type intermediate

2011 · Yosuke Matsuo, Yan Li, et al. · Tetrahedron · 34

Production of Theaflavins and Theasinensins during Tea Fermentation

2005 · Takashi Tanaka, Chie Mine, et al. · ACS symposium series · 4

Works count: 6

Citation count: 340

H-index: 5

I10-index: 5