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KMID : 0616120090400030178
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Korean Journal of Pharmacognosy
2009 Volume.40 No. 3 p.178 ~ p.183
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Changes of Physiological Activity by Drying Temperature in Leaf of Eriobotrya japonica
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Eom Hyo-Jin
Kim Sun-Min
Pyo Byoung-Sik
Lee Kyoung-In
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Abstract
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In DPPH radical and nitric oxide scavenging ability, the extract of lowest temperature condition(40-15H ; 15 hours at 40℃ for drying) exhibited highest activity. The total phenolic and flavonoid contents of each extracts were found to be 120.4~193.3 ㎎/g and 86.91~94.55 ㎎/g respectively. It is shown that 40-15H was the highest content in each compound. In antimicrobial activity, a lower drying temperature conditions were found to be more strong activities in disc diffusion assay and each extracts showed MIC of identical level against every tested microbial strains. However 100-2H(2 hours at 100℃ for drying) was exhibited MIC of slightly low level against some strains. And every extract showed fine cell viabilities(101.7~122.9%) against RAW 264.7 cell. In anti-proliferation activity against AGS, each extract showed a similar inhibition activity. However in anti-proliferation activity against HeLa, a lower drying temperature conditions showed more strong activities.
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KEYWORD
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Eriobotrya japonica, antioxidative, antimicrobial, cytotoxicity, drying temperature
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