摘要
以实验室分离得到的汉逊德巴利酵母(Debaryomyces hansenii,Y-1)、尼泊尔德巴利酵母(Debaryomyces nepalensis,T18)和萎缩芽孢杆菌(Bacillus atrophaeus,TE-7)为材料,研究单独处理(Y-1、T18、TE-7)和复合处理(Y-1+TE-7、Y-1+T18、T18+TE-7)对芒果贮藏品质和抗病性的影响。结果表明:Y-1和TE-7菌悬液以体积比1∶1复配后浸泡芒果20 min,能显著抑制胶胞炭疽菌(Colletotrichum gloeosporioides)孢子萌发;此外,与Y-1和TE-7单一处理相比,Y-1+TE-7处理能有效延缓果实a~*值、可溶性固形物质量分数、硬度、可滴定酸质量分数的变化;贮藏中后期(6 d后),Y-1+TE-7处理较Y-1和TE-7单一处理过氧化物酶、苯丙氨酸解氨酶、β-1,3-葡聚糖活力增强;贮藏中期(9～18 d),Y-1+TE-7处理较Y-1和TE-7单一处理多酚氧化酶活力减弱。说明Y-1和TE-7复合使用能显著提高采后芒果的贮藏品质,增强果实的抗病性,在芒果采后处理上具有一定的应用潜力。
Debaryomyces hansenii Y-1, Debaryomyces nepalensis T18 and Bacillus atrophaeus TE-7, isolated in our laboratory, were used to investigate their effects when used alone or in combination (Y-1 + TE-7, Y-1 + T18, T18 + TE-7) on the storage quality and disease resistance of mango fruit. The results showed that soaking treatment with Y-1 + TE-7 (1:1, V/V) for 20 min significantly inhibited the spore germination of Colletotrichum gloeosporioides. Moreover, Y-1 + TE-7 treatment could not only remarkably delay the changes in a* value, firmness, titratable acidity (TA) and soluble solids (TSS) content, but also enhance the activity of peroxidase (POD), phenylalanine amidase (PAL) and β-1,3-glucan (GLU) from 6 to 21 days of storage compared with either alone. This combination reduced the activity of polyphenol oxidase (PPO) between 9 and 18 days of storage in comparison with either treatment alone. These observations suggest that Y-1 + TE-7 treatment can effectively improve the storage quality and increase disease resistance in mango fruit, and it can be potentially applied to postharvest handling of mango fruit.
作者
葛念念
周易
田亚琴
邵远志
GE Niannian;ZHOU Yi;TIAN Yaqin;SHAO Yuanzhi(College of Food Science and Technology, Hainan University, Haikou 570228,China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2019年第9期201-206,共6页
Food Science
基金
国家自然科学基金地区科学基金项目(31660587)
关键词
芒果
复合处理
抗病性
贮藏品质
mango
combined treatment
disease resistance
storage quality
