• Title/Summary/Keyword: octopus

검색결과 193건 처리시간 0.022초

The Study of Antioxidant Effects in Melanins Extracted from Various Tissues of Animals

  • Lin, Liang-Chuan;Chen, Wei-Tai
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권2호
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    • pp.277-281
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    • 2005

  • This study was carried out to investigate the antioxidant effects of melanin extracts, including silkie fowl skin melanin (SS-melanin), silkie fowl comb melanin (SC-melanin), sepia ink sac melanin (SE-melanin), octopus ink sac melanin (OC-melanin) and synthetic melanin (SY-melanin). The results showed that with the addition of melanin extracts, linoleic acid peroxide significantly, decreased (p<0.05) with the increase in the irradiative time of UV and that OC-melanin had the highest efficiency on antioxidant activity (p<0.05). Melanin extract had reducing power and chelating power to $Fe^{2+}$, which increased with the increase in the different melanin concentration. Therefore, it could be concluded that the antioxidant action of melanin extracts did not come from one single function, but is a result of many characteristic functions.

  • https://doi.org/10.5713/ajas.2005.277 인용 PDF KSCI

Synthesis of Octopus Type Trimethylene Glycol β-D-glucopyranosides

  • Kim, Yong Sik;Kadla, John F.
    • Journal of the Korean Wood Science and Technology
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    • 제41권2호
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    • pp.149-157
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    • 2013

  • The octopus type oligo-hydroxypropylene glycol ${\beta}$-D-glucopyranosides were successfully synthesized in this studies: the sterospecific compound of allyl 2, 3, 4, 6-tetra-O-acetyl-${\beta}$-D-glucopyranosides (1) was deacetylated with NaOMe in MeOH lead to allyl-${\beta}$-D-glucopyranoside (2) which was perallylated and followed by hydroboration and subsequent oxidation afforded (3-hydroxy-propyl) 2, 3, 4, 6-tetraO(3-hydroxy-propyl)-${\beta}$-D-glucopyranoside (4). As a result, not only allylpropylene glycol ${\beta}$-D-glucopyranosides (5, 7, and 9) but also hydroxypropylene glycol ${\beta}$-D-glucopyranosides (6, 8, and 10) were synthesized by repeated sequential perallylation followed by hydroboration/oxidation.

  • https://doi.org/10.5658/WOOD.2013.41.2.149 인용 PDF KSCI