采前喷施拮抗菌罗伦隐球酵母对草莓保鲜效果的影响  

Effect of preharvest spraying antagonistic yeast Cryptococcus laurentii on the preservation of strawberry

作　　者：毛淑波[1] 朱娜[1] 韦莹莹[1] 曹泽斌[1] 雷云[1] 吴林蔚[1] 屠康[1] 

机构地区：[1]南京农业大学食品科技学院,农业部农畜产品加工与质量控制重点开放实验室,江苏南京210095

出　　处：《食品工业科技》2013年第4期344-348,共5页Science and Technology of Food Industry

基　　金：江苏省现代农业创新(CX(11)2063);江苏省高校优势学科建设工程资助

摘　　要：研究采前喷施拮抗菌罗伦隐球酵母(Cryptococcus laurentii)对常温贮藏(20℃,4d)后的"丰香"草莓腐烂和品质的影响。结果表明:采用浓度为108CFU/mL的拮抗酵母菌悬液喷施能有效地减少草莓果实采后灰霉病和自然病害导致的腐烂,且采前喷施次数越多,抑制腐烂的效果越好。采前喷施三次拮抗酵母,贮藏结束后果实的腐烂指数比对照组减少了68.31%。采前喷施拮抗酵母能减少草莓果实的失重率、延缓硬度和VC含量下降,但对可溶性固形物、可滴定酸和颜色没有显著影响。酵母计数实验结果显示拮抗酵母能定殖在喷施处理组果实的表皮上。Effects of preharvest spraying of antagonistic yeast Cryptococcus laurentii on the decay and quality of post harvest strawberry（Toyonoka） under 20℃conditions for 4d were investigated. The result showed that the concentration of 108 CFU/mL of yeast cell suspension spraying could effectively reduce strawberry fruit rot caused by Botrytis cinerea as well as natural disease,the more the number of preharvest spraying,the better the inhibitory efficacy. The decay index of fruits sprayed with antagonistic yeast three times was reduced 68.31% compared with the control after storage. Antagonistic yeast before harvest spraying could reduce the weight loss rate,delay the hardness and Vc decrease of strawberry fruit, but had no significant effect on contents of soluble solids,titratable acidity and fruit surface color. Bengal agar plate test results showed that antagonistic yeast colonization could be found in the spraying treated fruit epidermis.

关 键 词：罗伦隐球 草莓 采前喷施 采后病害 品质 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]