%0 Journal Article %A GAO Hang %A GAO Yan-fen %A XU Hong %T Antioxidant and Anti-browning Activities of Ethanol Extract from Lotus Seed Skin %D 2013 %R 10.7506/spkx1002-6630-201311019 %J FOOD SCIENCE %P 83-87 %V 34 %N 11 %X

The goal of the present work was to evaluate the antioxidant and anti-browning activities of ethanol extract
from lotus seed skin. The ABTS+ radical scavenging activity, anti-tyrosinase activity and anti-browning effect as well as the
contents of total phenols and total flavonoids of the extract were determined. The results revealed that the ethanol extract
contained (233.63 ± 10.16) mg/g total phenols and (166.02 ± 7.31) mg/g total flavonoids. It also showed a strong antioxidant
activity against ABTS free radicals with IC50 of (1.385 ± 0.210) mg/mL. In tyrosinase inhibitory assay, the measured IC50
values were (1.665 ± 0.137) mg/mL for monophenolase and (3.777 ± 0.294) mg/mL for diphenolase, respectively. This
extract had a significant anti-browning effect on fresh-cut apple slices as demonstrated by measuring changes in L*, a*and
b* values, and the best efficacy was observed when combined with 0.5 g/100 mL ascorbic acid.

%U https://www.spkx.net.cn/EN/10.7506/spkx1002-6630-201311019