Antioxidative and Antimicrobial Activity of Epicatechin Isolated from Leaves of Loquat (Eriobotrya japonica)

Antioxidative and Antimicrobial Activity of Epicatechin Isolated from Leaves of Loquat (Eriobotrya japonica)

Methanol extracts were prepared from loquat leaves (2 kg) and successively fractionated with hexane, chloroform, ethyl acetate, butanol, and water solvents. The ethyl acetate fraction exhibited the highest antioxidative and, antimicrobial activities. Therefore, the ethyl acetate fraction was purifie...

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Veröffentlicht in:Journal of food science and nutrition (Pusan, Korea : 2003) Korea : 2003), 2005-06, Vol.10 (2)
Hauptverfasser: Bae, Y.I. (Gyeongsang National University, Jinju, Republic of Korea), Jeong, C.H. (Gyeongsang National University, Jinju, Republic of Korea), Shim, K.H. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: khshim@nongae.gsnu.ac.kr
Format: Artikel
Sprache:eng
Schlagworte:
antimicrobial activities
antioxidative
epicatechin
LOQUATS
NEFLE (ERIOBOTRYA)
NISPERO (ERIOBOTRYA)
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Zusammenfassung:Methanol extracts were prepared from loquat leaves (2 kg) and successively fractionated with hexane, chloroform, ethyl acetate, butanol, and water solvents. The ethyl acetate fraction exhibited the highest antioxidative and, antimicrobial activities. Therefore, the ethyl acetate fraction was purified and a chemical structure was identified by ¹H and ∨13C-NMR spectra, FT-IR and EI/MS spectroscopies. The isolated antioxidative and antimicrobial substance was identified as epicatechin.
ISSN:1226-332X