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Effects of poplar buds as an alternative to propolis on postharvest diseases control of strawberry fruits
Author(s) -
Yang Shuzhen,
Zhou Yefeng,
Ye Junli,
Fan Gang,
Peng Litao,
Pan Siyi
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7329
Subject(s) - propolis , postharvest , pinocembrin , botrytis cinerea , mycelium , galangin , horticulture , rosmarinic acid , botany , biology , chemistry , food science , spore germination , spore , flavonoid , antioxidant , kaempferol , biochemistry
BACKGROUND Botrytis cinerea and Rhizopus stolonifer , two main postharvest pathogens, cause great loss of strawberry fruits. Here, the effects of poplar buds extracts, a main plant source for Chinese propolis, on disease control were investigated in vitro and in vivo . RESULTS The HPLC profile of poplar buds ethanol extract ( PBEE ) was almost identical to that of propolis ethanol extract ( PEE ), with the active flavonoids identified as pinocembrin, chrysin and galangin. PBEE exhibited similar inhibitory activities on spore germination of both pathogens compared with PEE , and PBEE also strongly inhibited the mycelial growth of the pathogens. In vivo , PBEE could effectively reduce decay of strawberry fruits stored at 13 °C. Although the weight loss was slightly increased, the contents of total soluble solid, titritable acid, vitamin C and total anthocyanins were significantly higher in PBEE treated fruits than those of the control. CONCLUSION PBEE had the similar antifungal activity with propolis and had great potential as an alternative to propolis to control strawberry fruits diseases. © 2015 Society of Chemical Industry