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Isao Kouno

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

Research Profile (preview)

Phenomena

Chemicals & Drugs

Living Beings

Genes & Molecular Sequences

Molecular Structure

Objects

Tea

Procedures

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Co-Publications
Name
45
Tanaka, Takashi
9
Yang, Chong-Ren
8
Zhang, Ying-Jun
6
Ling, Sui-Kiong
5
Fujioka, Toshihiro
5
Jiang, Zhi-Hong
5
Kusano, Rie
4
Mihashi, Kunihide
3
Mine, Chie
2
Nonaka, Gen-ichiro
2
Shuaibu, MN
2
Yanagi, Tetsuo
2
Hirayama, Kenji
1
Zhao, Ping
1
Yuan, De-Qi

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Publications

TOP 3
Fudouji Ryusuke; Tanaka Takashi; Taguri Toshitugu; Matsuo Yosuke; Kouno Isao
Coupling reactions of catechins with natural aldehydes and allyl alcohols and radical scavenging activities of the triglyceride-soluble products.
Tanaka Takashi; Miyata Yuji; Tamaya Kei; Kusano Rie; Matsuo Yosuke; Tamaru Shizuka; Tanaka Kazunari; Matsui Toshiro; Maeda Masamichi; Kouno Isao
Increase of theaflavin gallates and thearubigins by acceleration of catechin oxidation in a new fermented tea product obtained by the tea-rolling processing of loquat ( Eriobotrya japonica ) and green tea leaves.
Maeda Hajime; Matsuo Yosuke; Tanaka Takashi; Kouno Isao
Euscaphinin, a new ellagitannin dimer from Euscaphis japonica (THUNB.) KANITZ.

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All Publications

2009: Fudouji Ryusuke; Tanaka Takashi; Taguri Toshitugu; Matsuo Yosuke; Kouno Isao
Coupling reactions of catechins with natural aldehydes and allyl alcohols and radical scavenging activities of the triglyceride-soluble products.
Journal of agricultural and food chemistry 2009;57(14):6417-24.
2009: Tanaka Takashi; Miyata Yuji; Tamaya Kei; Kusano Rie; Matsuo Yosuke; Tamaru Shizuka; Tanaka Kazunari; Matsui Toshiro; Maeda Masamichi; Kouno Isao
Increase of theaflavin gallates and thearubigins by acceleration of catechin oxidation in a new fermented tea product obtained by the tea-rolling processing of loquat ( Eriobotrya japonica ) and green tea leaves.
Journal of agricultural and food chemistry 2009;57(13):5816-22.
2009: Maeda Hajime; Matsuo Yosuke; Tanaka Takashi; Kouno Isao
Euscaphinin, a new ellagitannin dimer from Euscaphis japonica (THUNB.) KANITZ.
Chemical & pharmaceutical bulletin 2009;57(4):421-3.
2008: Zhao Ping; Tanaka Takashi; Hirabayashi Keisuke; Zhang Ying-Jun; Yang Chong-Ren; Kouno Isao
Caffeoyl arbutin and related compounds from the buds of Vaccinium dunalianum.
Phytochemistry 2008;69(18):3087-94.
2008: Matsuo Yosuke; Yamada Yuko; Tanaka Takashi; Kouno Isao
Enzymatic oxidation of gallocatechin and epigallocatechin: effects of C-ring configuration on the reaction products.
Phytochemistry 2008;69(18):3054-61.
2008: Shuaibu M N; Pandey K; Wuyep P A; Yanagi T; Hirayama K; Ichinose A; Tanaka T; Kouno I
Castalagin from Anogeissus leiocarpus mediates the killing of Leishmania in vitro.
Parasitology research 2008;103(6):1333-8.
2008: Tanaka Takashi; Matsuo Yosuke; Yamada Yuko; Kouno Isao
Structure of polymeric polyphenols of cinnamon bark deduced from condensation products of cinnamaldehyde with catechin and procyanidins.
Journal of agricultural and food chemistry 2008;56(14):5864-70.
2008: Shuaibu M N; Wuyep P A; Yanagi T; Hirayama K; Tanaka T; Kouno I
The use of microfluorometric method for activity-guided isolation of antiplasmodial compound from plant extracts.
Parasitology research 2008;102(6):1119-27.
2008: Kusano Rie; Andou Hisashi; Fujieda Miho; Tanaka Takashi; Matsuo Yosuke; Kouno Isao
Polymer-like polyphenols of black tea and their lipase and amylase inhibitory activities.
Chemical & pharmaceutical bulletin 2008;56(3):266-72.
2008: Li Haizhou; Nakashima Tatsuya; Tanaka Takashi; Zhang Ying-Jun; Yang Chong-Ren; Kouno Isao
Two new maltol glycosides and cyanogenic glycosides from Elsholtzia rugulosa Hemsl.
Journal of natural medicines 2008;62(1):75-8.
2007: Kusano Rie; Tanaka Takashi; Matsuo Yosuke; Kouno Isao
Structures of epicatechin gallate trimer and tetramer produced by enzymatic oxidation.
Chemical & pharmaceutical bulletin 2007;55(12):1768-72.
2007: Li Haizhou; Tanaka Takashi; Zhang Ying-Jun; Yang Chong-Ren; Kouno Isao
Rubusuaviins A-F, monomeric and oligomeric ellagitannins from Chinese sweet tea and their alpha-amylase inhibitory activity.
Chemical & pharmaceutical bulletin 2007;55(9):1325-31.
2007: Tanaka Takashi; Nakashima Tatsuya; Ueda Toshihisa; Tomii Kenji; Kouno Isao
Facile discrimination of aldose enantiomers by reversed-phase HPLC.
Chemical & pharmaceutical bulletin 2007;55(6):899-901.
2007: Li Yan; Tanaka Takashi; Kouno Isao
Oxidative coupling of the pyrogallol B-ring with a galloyl group during enzymatic oxidation of epigallocatechin 3-O-gallate.
Phytochemistry 2007;68(7):1081-8.
2007: Yuan De-Qi; Koga Kazutaka; Kouno Isao; Fujioka Toshihiro; Fukudome Makoto; Fujita Kahee
The first topologically controlled synthesis of doubly bridged beta-cyclodextrin dimers.
Chemical communications (Cambridge, England) 2007;(8):828-30.
2005: Tanaka Takashi; Inoue Kyoko; Kouno Isao
Regioselectivity in benzotropolone formation between catechins and proanthocyanidins.
Natural product research 2005;19(8):731-7.
2005: Tanaka Takashi; Matsuo Yosuke; Kouno Isao
A novel black tea pigment and two new oxidation products of epigallocatechin-3-O-gallate.
Journal of agricultural and food chemistry 2005;53(19):7571-8.
2005: Tanaka Takashi; Uehara Rami; Nishida Kaori; Kouno Isao
Galloyl, caffeoyl and hexahydroxydiphenoyl esters of dihydrochalcone glucosides from Balanophora tobiracola.
Phytochemistry 2005;66(6):675-81.
2005: Jiang Zhi-Hong; Tanaka Takashi; Iwata Hiromi; Sakamoto Saori; Hirose Yoko; Kouno Isao
Ellagitannins and lignan glycosides from Balanophora japonica (Balanophoraceae).
Chemical & pharmaceutical bulletin 2005;53(3):339-41.
2004: Ling S-K; Takashima T; Tanaka T; Fujioka T; Mihashi K; Kouno I
A new diglycosyl megastigmane from Carallia brachiata.
Fitoterapia 2004;75(7-8):785-8.
2004: Zhang Ying-Jun; Nagao Tsuneatsu; Tanaka Takashi; Yang Chong-Ren; Okabe Hikaru; Kouno Isao
Antiproliferative activity of the main constituents from Phyllanthus emblica.
Biological & pharmaceutical bulletin 2004;27(2):251-5.
2003: Tanaka Takashi; Fukumori Masatake; Ochi Tomoko; Kouno Isao
Paeonianins A-E, new dimeric and monomeric ellagitannins from the fruits of Paeonia lactiflora.
Journal of natural products 2003;66(6):759-63.
2003: Ling Sui-Kiong; Tanaka Takashi; Kouno Isao
Effects of iridoids on lipoxygenase and hyaluronidase activities and their activation by beta-glucosidase in the presence of amino acids.
Biological & pharmaceutical bulletin 2003;26(3):352-6.
2002: Tanaka Takashi; Mine Chie; Watarumi Sayaka; Fujioka Toshihiro; Mihashi Kunihide; Zhang Ying-Jun; Kouno Isao
Accumulation of epigallocatechin quinone dimers during tea fermentation and formation of theasinensins.
Journal of natural products 2002;65(11):1582-7.
2002: Ling Sui-Kiong; Komorita Akiko; Tanaka Takashi; Fujioka Toshihiro; Mihashi Kunihide; Kouno Isao
Iridoids and anthraquinones from the Malaysian medicinal plant, Saprosma scortechinii (Rubiaceae).
Chemical & pharmaceutical bulletin 2002;50(8):1035-40.
2002: Zhang Ying-Jun; Abe Tomomi; Tanaka Takashi; Yang Chong-Ren; Kouno Isao
Two new acylated flavanone glycosides from the leaves and branches of Phyllanthus emblica.
Chemical & pharmaceutical bulletin 2002;50(6):841-3.
2002: Ling Sui-Kiong; Komorita Akiko; Tanaka Takashi; Fujioka Toshihiro; Mihashi Kunihide; Kouno Isao
Sulfur-containing bis-iridoid glucosides and iridoid glucosides from Saprosmas cortechinii.
Journal of natural products 2002;65(5):656-60.
2002: Tanaka Takashi; Mine Chie; Inoue Kyoko; Matsuda Miyuki; Kouno Isao
Synthesis of theaflavin from epicatechin and epigallocatechin by plant homogenates and role of epicatechin quinone in the synthesis and degradation of theaflavin.
Journal of agricultural and food chemistry 2002;50(7):2142-8.
2002: Ling Sui-Kiong; Tanaka Takashi; Kouno Isao
New cyanogenic and alkyl glycoside constituents from Phyllagathis rotundifolia.
Journal of natural products 2002;65(2):131-5.
2002: Zhang Ying-Jun; Tanaka Takashi; Betsumiya Yayoi; Kusano Rie; Matsuo Atsushi; Ueda Toshihisa; Kouno Isao
Association of tannins and related polyphenols with the cyclic peptide gramicidin S.
Chemical & pharmaceutical bulletin 2002;50(2):258-62.
2002: Jiang Zhi-Hong; Tanaka Takashi; Sakamoto Takako; Kouno Isao; Duan Jin-Ao; Zhou Rong-Han
Biflavanones, diterpenes, and coumarins from the roots of Stellera chamaejasme L.
Chemical & pharmaceutical bulletin 2002;50(1):137-9.
2001: Zhang Y J; Abe T; Tanaka T; Yang C R; Kouno I
Phyllanemblinins A-F, new ellagitannins from Phyllanthus emblica.
Journal of natural products 2001;64(12):1527-32.
2001: Tanaka T; Inoue K; Betsumiya Y; Mine C; Kouno I
Two types of oxidative dimerization of the black tea polyphenol theaflavin.
Journal of agricultural and food chemistry 2001;49(12):5785-9.
2001: Zhang Y J; Tanaka T; Iwamoto Y; Yang C R; Kouno I
Novel sesquiterpenoids from the roots of Phyllanthus emblica.
Journal of natural products 2001;64(7):870-3.
2001: Jiang Z H; Hirose Y; Iwata H; Sakamoto S; Tanaka T; Kouno I
Caffeoyl, coumaroyl, galloyl, and hexahydroxydiphenoyl glucoses from Balanophora japonica.
Chemical & pharmaceutical bulletin 2001;49(7):887-92.
2001: Ling S K; Tanaka T; Kouno I
Iridoids from Rothmannia macrophylla.
Journal of natural products 2001;64(6):796-8.
2001: Jiang Z H; Tanaka T; Inutsuka C; Kouno I
Alkaloids, diarylheptanoid and naphthalene carboxylic acid ester from Rhoiptelea chiliantha.
Chemical & pharmaceutical bulletin 2001;49(6):737-40.
2001: Zhang Y J; Tanaka T; Yang C R; Kouno I
New phenolic constituents from the fruit juice of Phyllanthus emblica.
Chemical & pharmaceutical bulletin 2001;49(5):537-40.
2001: Tanaka T; Nonaka G I; Ishimatsu M; Nishioka I; Kouno I
Revised structure of cercidinin A, a novel ellagitannin having (R)-hexahydroxydiphenoyl esters at the 3,4-positions of glucopyranose.
Chemical & pharmaceutical bulletin 2001;49(4):486-7.
2001: Kouno I; Hirai A; Fukushige A; Jiang Z H; Tanaka T
New eudesmane sesquiterpenes from the root of Lindera strychnifolia.
Journal of natural products 2001;64(3):286-8.
2000: Zhang Y J; Tanaka T; Iwamoto Y; Yang C R; Kouno I
Novel norsesquiterpenoids from the roots of Phyllanthus emblica.
Journal of natural products 2000;63(11):1507-10.
2000: Tanaka T; Kataoka M; Tsuboi N; Kouno I
New monoterpene glycoside esters and phenolic constituents of Paeoniae radix, and increase of water solubility of proanthocyanidins in the presence of paeoniflorin.
Chemical & pharmaceutical bulletin 2000;48(2):201-7.
2000: Tanaka T; Kondou K; Kouno I
Oxidation and epimerization of epigallocatechin in banana fruits.
Phytochemistry 2000;53(2):311-6.
1999: Tanaka T; Jiang Z H; Nonaka G; Kouno I
Modification of the solubility of tannins: biological significance and synthesis of lipid-soluble polyphenols.
Basic life sciences 1999;66():761-78.
1998: Tanaka T; Kusano R; Kouno I
Synthesis and antioxidant activity of novel amphipathic derivatives of tea polyphenol.
Bioorganic & medicinal chemistry letters 1998;8(14):1801-6.
1997: Tanaka T; Zhang H; Jiang Z H; Kouno I
Relationship between hydrophobicity and structure of hydrolyzable tannins, and association of tannins with crude drug constituents in aqueous solution.
Chemical & pharmaceutical bulletin 1997;45(12):1891-7.

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