外源精胺脉冲负压渗透处理对采后菜豆品质的影响  

Effects of Vacuum Pulse Infiltration of Exogenous Spermine on Quality of Postharvest Common Bean

作　　者：田维娜[1,2] 缪颖[1] 曹建康[1] 姜微波[1,2] 

机构地区：[1]中国农业大学食品科学与营养工程学院,北京100083 [2]中国农业大学国家果蔬加工工程技术研究中心,北京100083

出　　处：《农业机械学报》2013年第1期131-136,166,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA100803);中央高校基本科研业务费专项资金资助项目(2010JS075)

摘　　要：通过不同浓度外源精胺脉冲负压渗透处理的方法,研究了外源精胺在保持菜豆贮藏品质方面的作用。结果表明:在温度(20±2)℃,相对湿度80%～85%贮藏条件下,经不同浓度(0、0.02、0.2、0.5、1.0 mmol/L)的外源精胺真空渗透处理后的菜豆,其贮藏品质均得到不同程度的保持。外源精胺不同处理可有效延缓菜豆腐烂和锈斑的发生,而且可以抑制菜豆失重率和豆荚切割力的增加,并使菜豆豆荚的可溶性固形物以及菜豆豆粒硬度和可溶性蛋白含量得以保持。不同浓度外源精胺处理效果比较表明,0.5 mmol/L精胺处理保持菜豆贮藏品质的效果最好,贮藏至第8天菜豆腐烂指数和锈斑指数分别比对照低68%和23%。With the aim to investigate the influence of spermine （SPM） treatment by vacuum pulse infiltration on postharvest quality of common beans （Phaseolus vulgaris L. ）, common beans were immersed in SPM solutions （0, 0.02, 0.2, 0.5 or 1.0 mmol/L） under vacuum （ -20 kPa） for 2 min and then stored at 20℃ , 80% - 85% relative humidity for 8 days. The results indicated that exogenous SPM treatments could significantly inhibit water loss and cutting-force increasing, and reduce the rust spots forming and decay of bean pod. Exogenous SPM treatments could also remarkably prevent decrease in levels of the soluble protein in the bean seed and the total soluble solids in the bean pod. The treatment with 0.5 mmol/L SPM was more effective than the other treatments. The decay or rust spots index of the bean pod treated with 0.5 mmol/L SPM was about 68% or 23% lower than that of control in the 8th day of storage, respectively. The results could be applicable to improve quality of common bean for commercial purpose.

关 键 词：菜豆 外源精胺 脉冲负压 贮藏品质 

分 类 号：TS201.6[轻工技术与工程—食品科学] TS255.3[轻工技术与工程—食品科学与工程]