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Author: Woo-Suk Bang ², Young-Min Chung ¹, Byung-Doo Lee ¹, Jin-Cheol Lee ³ and Jong-Bang Eun ^1*

Abstract

Antimicrobial and antioxidative effects of solvent extracts of defatted tea seed meal (DTSM) were investigated for possible utilization as food ingredients. Of the extracts from DTSM, the ethyl acetate-soluble fraction showed much stronger antibacterial activity against the Gram-positive bacteria, S. aureus, M. luteus and S. epidermidis, than did the control benzoic acid solution. It also exhibited stronger effects against the Gram-negative bacteria, E. coli, S. typhimurium and P. aeruginosa, than control. The ethyl acetate and butanol fractions displayed stronger antioxidant activity than BHA, BHT and a-tocopherol. The SC₅₀ of the butanol fraction was 16.2 µg/mL, which was higher than that of BHA. The solvent extract of DTSM could be a good source for antimicrobials and antioxidants.

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Antimicrobial and antioxidative effects of defatted tea seed meal

Abstract

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