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Characterization of terpene extract from Cannabis sativa flower and evaluation of its anti-melanogenetic effect in melan-a cells. [PDF]

Sci Rep
Kim JW, Han Y, Dorjsembe B, Chang PS, Kim T, Ham J, Kim JC.   +6 more
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Arbutin in marjoram and oregano

Food Chemistry, 2010
Abstract Arbutin is a hydroquinone derivative that has been found in species of several plant families. Within the genus Origanum the formation of arbutin is polymorphic, with arbutin present in considerable amounts ( O. dubium 20.8 ± 15.3 mg/g; wild O. majorana 51.3 ± 15.4 mg/g, cultivated O.
Brigitte Lukas, Corinna Schmiderer, Johannes Novak   +2 more
exaly   +2 more sources

Structural criteria for depigmenting mechanism of arbutin

Phytotherapy Research, 2004
AbstractArbutin, hydroquinone‐O‐β‐d‐glucopyranoside (1) was found to inhibit the oxidation of l‐tyrosine (monophenolase activity) catalyzed by mushroom tyrosinase. However, arbutin itself was oxidized as a monophenol substrate at an extremely slow rate, and this oxidation was accelerated as soon as catalytic amounts (0.01 mm) of l‐3,4 ...
Ken-Ichi Nihei
exaly   +3 more sources

The oxidation of arbutin by isolated chloroplasts of arbutin-containing plants

Phytochemistry, 1963
Abstract A new explanation is proposed to explain the blackening of Pyrus leaves. The phenolic glucoside arbutin present in the leaves is oxidized directly by enzymes in the chloroplasts, but not present in chromoplasts, leucoplasts or cytoplasm.
Shizuo Hattori, Mitsuhiko Satô
openaire   +1 more source

Screening of high α-arbutin producing strains and production of α-arbutin by fermentation

World Journal of Microbiology and Biotechnology, 2013
A mutant Xanthomonas maltophilia BT-112 with high α-anomer-selective glycosylation activity was screened by a series of mutation methods including UV light, N-methyl-N-nitro-N-nitroso-guanidine treatment and quick neutron mutation. The α-arbutin titer increased 15-folds compared with the parent strain.
Chun-Qiao, Liu, Li, Deng, Peng, Zhang, Shu-Rong, Zhang, Luo, Liu, Tao, Xu, Fang, Wang, Tian-Wei, Tan   +7 more
openaire   +2 more sources

Biotechnological production of arbutins (α- and β-arbutins), skin-lightening agents, and their derivatives

Applied Microbiology and Biotechnology, 2012
Arbutins (α- and β-arbutins) are glycosylated hydroquinones that are commercially used in the cosmetic industry. These compounds have an inhibitory function against tyrosinase, a critical enzyme for generating pigments, which leads to the prevention of melanin formation, resulting in a whitening effect on the skin.
Dong-Ho, Seo, Jong-Hyun, Jung, Jae-Eun, Lee, Eun-Jung, Jeon, Wooki, Kim, Cheon-Seok, Park   +5 more
openaire   +2 more sources

Radioprotective Mechanisms of Arbutin: A Systematic Review

Current Drug Research Reviews, 2022
Purpose: Efforts to produce radioprotective agents of high potential are appropriate strategies for overcoming possible IR toxicity in organisms. The present research aims to evaluate the signaling pathways and mechanisms through which arbutin exerts radioprotective effects on organisms.
Shima, Sadeghinezhad, Ehsan, Khodamoradi, Loghman, Diojan, Shahram, Taeb, Masoud, Najafi   +4 more
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The thermal decomposition of arbutin

Thermochimica Acta, 1981
Abstract The thermal decomposition of arbutin starts at the melting at 200°C and terminates at 288°C. Non-volatile decomposition products are mainly hydroquinone(Hq), 1,6-anhydro-β-D-glucopyranose(16AGP), 1,6-anhydro-β-D-glucofuranose(16AGF) and α- and β-D-glucose. In order to elucidate the kinetics, the methods of Friedman and Ozawa are applied for
Yoshiyasu Tanaka, Tadashi Nakamura
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Formulation of Liposome for topical delivery of arbutin

Archives of Pharmacal Research, 2006
The aims of this study were to encapsulate arbutin (AR) in liposome to enhance the skin-whitening activity, and to investigate the effect of liposome formulation on the entrapment efficiency (EE%), skin permeation rate and skin deposition. The liposomes were prepared by a film dispersion method with several different formulations and were separated ...
Ai-Hua, Wen, Min-Koo, Choi, Dae-Duk, Kim
openaire   +2 more sources

Arbutin determination in medicinal plants and creams

International Journal of Cosmetic Science, 2009
SynopsisA simple flow injection (FI) manifold with spectrophotometric detection was fabricated and tested for arbutin determination. It is based on the measurement of a red‐coloured product at 514 nm formed by the complexation reaction between arbutin and 4‐aminoantipyrine (4‐AP) in the presence of hexacyanoferrate (III) in an alkaline medium.
W, Thongchai, B, Liawruangrath, S, Liawruangrath   +2 more
openaire   +2 more sources