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Effects of Oligochitosan on Growth of
Penicillium expansum
and Production of Patulin
JIANG La,摇 WANG Liting,摇 CHEN Haiyan,摇 MENG Xianghong
*
(
College of Food Science and Engineering
,
Ocean University of China
,
Qingdao
266003,
China
)
Abstract
: In order to evaluate the antifungal activity of oligochitosan on pathogen growth and mycotoxin
production in a comprehensive way, effects of oligochitosan on the growth of
Penicillium expansum
and the
production of patulin were investigated at different temperatures by static and shaking cultivation cultured
in liquid medium. The results showed that oligochitosan with concentration of 5, 10 g / L had the obvious
promoting effect on the growth of
Penicillium expansum
, but the inhibitory effect on the production of pat鄄
ulin. The same concentration oligochitosan inhibited the production of patulin, but had different effects
on the growth of
Penicillium expansum
at 4, 16 益, and 25 益 . The highest and lowest ratios of patulin
and
P. expansum
(mg:g) were obtained at 16, 25 益 . This study indicated that application of oligochi鄄
tosan for postharvest disease should take into account the effect of storage temperature and the production
of patulin in order to obtain the antifungal effect and food safety.
Key words
: oligochitosan;
Penicillium expansum
; patulin; growth
(
责任编辑
:
叶红波
)
03
食品科学技术学报
摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇
摇 2015
年
9
月
