Výsledky vyhledávání - "Toshio Sakamoto"

Akademický článek

Identification of Major Antioxidant Compounds from the Edible Mushroom Basidiomycetes-X (Echigoshirayukidake)

Autor: Toshio Sakamoto, Zhenshi Li, Ayaka Nishida, Asako Kadokawa, Takayuki Yoshida, Naoki Wada, Seiichi Matsugo, Yutaka Nakamura, Shinji Sato, Tetsuya Konishi

Publikováno v: Frontiers in Bioscience-Elite, Vol 14, Iss 2, p 10 (2022)

Basidiomycetes-X, of which Japanese vernacular name is Echigoshirayukidake, is a local speciality mushroom found and cultivated in Japan that has been distributed as a precious cuisine material or as a functional food with medicinal properties. Antio

Externí odkaz: https://doaj.org/article/7acb45157c394e44b5b1b6d94308684d

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Akademický článek

Identification of a Novel Pyrrole Alkaloid from the Edible Mushroom Basidiomycetes-X (Echigoshirayukidake)

Autor: Toshio Sakamoto, Ayaka Nishida, Naoki Wada, Yutaka Nakamura, Shinji Sato, Tetsuya Konishi, Seiichi Matsugo

Publikováno v: Molecules, Vol 25, Iss 21, p 4879 (2020)

Three pyrrole alkaloid derivatives were isolated from the edible mushroom Basidiomycetes-X (Echigoshirayukidake) by water extraction followed by ethyl acetate fractionation. The chemical structures determined by MS and NMR were 4-[2-formyl-5-(hydroxy

Externí odkaz: https://doaj.org/article/87eae671643d439399d6570683e55248

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Akademický článek

Mycosporine-Like Amino Acids and Their Derivatives as Natural Antioxidants

Autor: Naoki Wada, Toshio Sakamoto, Seiichi Matsugo

Publikováno v: Antioxidants, Vol 4, Iss 3, Pp 603-646 (2015)

Mycosporine-like amino acids (MAAs) are water-soluble molecules that absorb UV-A and UV-B radiation and disperse the energy as heat. MAAs show great diversity in their molecular structures, which exhibit a range of molecular weights spanning 188 to 1

Externí odkaz: https://doaj.org/article/accda2669c3544e2b31ec589683bc15d

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Akademický článek

Glycosylated Porphyra-334 and Palythine-Threonine from the Terrestrial Cyanobacterium Nostoc commune

Autor: Toshio Sakamoto, Takumi Nishiuchi, Seiichi Matsugo, Tomoya Asano, Ehsan Nazifi, Minami Yamaba, Naoki Wada

Publikováno v: Marine Drugs, Vol 11, Iss 9, Pp 3124-3154 (2013)

Mycosporine-like amino acids (MAAs) are water-soluble UV-absorbing pigments, and structurally different MAAs have been identified in eukaryotic algae and cyanobacteria. In this study novel glycosylated MAAs were found in the terrestrial cyanobacteriu

Externí odkaz: https://doaj.org/article/fdb7297a011a48bd880548095bec2a31

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Akademický článek

Multiple Roles of Photosynthetic and Sunscreen Pigments in Cyanobacteria Focusing on the Oxidative Stress

Autor: Seiichi Matsugo, Toshio Sakamoto, Naoki Wada

Publikováno v: Metabolites, Vol 3, Iss 2, Pp 463-483 (2013)

Cyanobacteria have two types of sunscreen pigments, scytonemin and mycosporine-like amino acids (MAAs). These secondary metabolites are thought to play multiple roles against several environmental stresses such as UV radiation and desiccation. Not on

Externí odkaz: https://doaj.org/article/ed5bd3ff30a84f2b8cb5520aa9bf657c

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Possible involvement of extracellular polymeric substrates of Antarctic cyanobacterium Nostoc sp. strain SO-36 in adaptation to harsh environments

Autor: Devi B. Effendi, Toshio Sakamoto, Shuji Ohtani, Koichiro Awai, Yu Kanesaki

Publikováno v: Journal of Plant Research. 135:771-784

Cyanobacteria are some of the primary producers in extremely cold biospheres such as the Arctic, Antarctic, and vast ice sheets. Many genera of cyanobacteria are identified from these harsh environments, but their specific mechanisms for cold adaptat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5870514e3b1be41bd7bffa66c1a7fd4f
https://doi.org/10.1007/s10265-022-01411-x

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Mushrooms as a Resource for Mibyou-Care Functional Food; The Role of Basidiomycetes-X (Shirayukidake) and Its Major Components

Autor: Seiichi Matsugo, Toshio Sakamoto, Koji Wakame, Yutaka Nakamura, Kenichi Watanabe, Tetsuya Konishi

Publikováno v: Nutraceuticals. 2:132-149

Mibyou has been defined in traditional oriental medicine as a certain physiological condition whereby an individual is not ill but not healthy; it is also often referred to as a sub-healthy condition. In a society focused on longevity, “Mibyou-care

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c72b89c504601480da8f89e801b75df
https://doi.org/10.3390/nutraceuticals2030010

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Sunscreen redox status in a multicellular cyanobacterium visualized by Raman scattering spectral microscope

Autor: Kouto Tamamizu, Toshio Sakamoto, Yuki Kurashige, Shuho Nozue, Shigeichi Kumazaki

UV radiation, desiccation, and starvation induce some cyanobacteria to produce a UVA-absorbing pigment, scytonemin, at extracellular sheaths. Although the accumulation of scytonemin is recognizable as dark sheaths through optical microscopes, it has

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be1fba95a2e55b03c9850f7cc2af3ab6
https://doi.org/10.1101/2022.07.26.501630

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