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Int J Food Sci Nutr. 2014 Aug;65(5):589-93. doi: 10.3109/09637486.2014.886181. Epub 2014 Feb 17.

Antimicrobial activities of various fractions of longan (Dimocarpus longan Lour. Fen Ke) seed extract.

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1
Laboratory of Antrodia Certification Center, Joben Bio-medical Co, Ltd. , Pingtung , Taiwan and.

Abstract

The antimicrobial activities of longan (Dimocarpus longan Lour. Fen ke) seed extracts were investigated using a disc diffusion method and also determining the minimal inhibitory concentration. The DL-P01-SI01 fraction showed that the strongest activity against Staphylococcus aureus and methicillin-resistant S. aureus at MIC 64 μg/mL, which was found to be due to the phenolic compounds. The HPLC analysis showed that the major phenolic compounds are gallic acid, corilagin, ethyl gallate and ellagic acid.

KEYWORDS:

Antimicrobial activity; corilagin; ellagic acid; ethyl gallate; longan seed

PMID:
24533783
DOI:
10.3109/09637486.2014.886181
[Indexed for MEDLINE]
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