Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Isao Kouno"'
Publikováno v:
Molecules, Vol 18, Iss 5, Pp 4868-4875 (2013)
Four triterpenes were isolated from a traditional Japanese tea product produced by anaerobic microbial fermentation of heated green tea leaves (Camellia sinensis). Two of the compounds were novel and characterized by spectroscopic investigation to be
Externí odkaz:
https://doaj.org/article/7d1ca7f8f71c442cbad9dfc8195f5559
Publikováno v:
International Journal of Molecular Sciences, Vol 11, Iss 1, Pp 14-40 (2009)
This review will discuss recent progress in the chemistry of secondary polyphenols produced during food processing. The production mechanism of the secondary polyphenols in black tea, whisky, cinnamon, and persimmon fruits will be introduced. In the
Externí odkaz:
https://doaj.org/article/001b68b3331f43e2912f25ea6afd339b
Publikováno v:
Molecules, Vol 14, Iss 6, Pp 2087-2094 (2009)
Four new dammarane-type triterpene saponins named floranotoginsenosides A (1), B (2), C (3) and D (4), together with five known triterpene saponins, were isolated from the flowers of Panax notoginseng. Their structures were elucidated on the basis of
Externí odkaz:
https://doaj.org/article/0b4eb345c51d4290984cd7fc592149a0
Publikováno v:
Tetrahedron. 69(42):8952-8958
To understand the structures of uncharacterized black tea polyphenols, the oxidation products of (-)-epigallocatechin were investigated. Enzymatic oxidation and subsequent heating of the reaction mixture afforded four new oxidation products (6, and 9
Publikováno v:
Molecules
Molecules, Vol 18, Iss 5, Pp 4868-4875 (2013)
Volume 18
Issue 5
Pages 4868-4875
Molecules, Vol 18, Iss 5, Pp 4868-4875 (2013)
Volume 18
Issue 5
Pages 4868-4875
Four triterpenes were isolated from a traditional Japanese tea product produced by anaerobic microbial fermentation of heated green tea leaves (Camellia sinensis). Two of the compounds were novel and characterized by spectroscopic investigation to be
Publikováno v:
Chemical and Pharmaceutical Bulletin. 61:366-369
A bisabolane type of sesquiterpene was isolated from the culture medium of Amanita virgineoides BAS, together with two known compounds, including lignoren, and harziandion. The structure of the new compound "virgineol" was established using a combina
Autor:
Min Xu, Dong Wang, Ying-Jun Zhang, Isao Kouno, Hong-Tao Zhu, Chong-Ren Yang, Rong-Rong Cheng, Takashi Tanaka
Publikováno v:
Natural product research. 30(23)
Fifty-eight phenolic compounds isolated from Phyllanthus emblica were screened and compared for their in vitro and in vivo antioxidant properties, as well as hyaluronidase (HAase) inhibitory activities. Among them, 20 compounds showed to be promising
Publikováno v:
Food Chemistry. 134(1):276-281
Japanese post-fermented teas are produced by a combination of aerobic and anaerobic microbial fermentation of the leaves of tea plant. Recently, it was revealed that tea products contain characteristic polyphenols identical to the tea catechin metabo
Publikováno v:
Phytochemistry Letters. 5(1):158-161
In the course of a chemotaxonomical study of Castanopsis species (Fagaceae), detailed investigation of the leaves of C. sclerophylla led to isolation of three new phenolic compounds together with 62 known compounds. The structures of the new compound
Benzyl Benzoate Glycoside and 3-Deoxy-d -manno-2-octulosonic Acid Derivatives from Solidago decurrens
Autor:
Takashi Tanaka, Zhi-Hong Jiang, Yosuke Matsuo, Ayako Fujiyama, Isao Kouno, Ken Shiraiwa, Shen Yuan
Publikováno v:
Journal of Natural Products. 75:88-92
A new benzyl benzoate glycoside and five new 3-deoxy-D-manno-2-octulosonic acid derivatives were isolated from the entire plant of Solidago decurrens together with three known compounds. Their structures were established by extensive analyses of thei