• Title/Summary/Keyword: bamboo (Phyllostachys bambusoides Starf)

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Chemical Components and Physiological Activities of Bamboo (Phyllostachys bambusoides Starf) Extracts Prepared with Different Methods (추출방법에 따른 대나무(왕대) 추출물의 화학성분 및 생리활성)

  • Ju, In-Ok;Jung, Gi-Tai;Ryu, Jeong;Choi, Joung-Sik;Choi, Yeong-Geun
    • Korean Journal of Food Science and Technology
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    • v.37 no.4
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    • pp.542-548
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    • 2005
  • Chemical components and physiological activities Bamboo (Phyllostachys bambusoides Starf) extracts obtained by burning, dry heating or extracting with water or 70% ethanol and were investigated. Contents of soluble solid and total phenolic compounds were highest in the ethanol extract. Contents of polyphenols such as catechin, chlorogenic acid, caffeic acid, 3-hydroxy benzoic acid and ferulic acid were determined. Free sugars consisted of galactose, glucose, fructose, and sucrose. Organic acids including citric, tartaric, malic, succinic, and acetic acid were present in the bamboo extracts. Antioxidant activities of dry heat and ethanol extracts were higher than those of BHA or ${\delta}-tocopherol$. Nitrite- scavenging effect of extracts ranged from 84.7 to 99.6% at pH 1.2 ana 3.0. Tyrosinase-inhibitory activity was higher in the water extract, and SOD-like and ACE-inhibitory activity were highest in tile dry kent extract. Antimicrobial activities of the bamboo extracts were strong against Bacillus subtilis, Escherichia coli O157, and Staphylococcus aureus.