采收期对双孢蘑菇生理特性及贮藏品质的影响  

Effect of Harvest Time on Physiological Property and Storage Quality of Agaricus bisporus

作　　者：王赵改[1] 杨慧[1] 王安建[1] 杨丰菊[2] 魏书信[1] 

机构地区：[1]河南省农业科学院农副产品加工研究所,河南郑州450002 [2]河南农业大学食品科技学院,河南郑州450002

出　　处：《华北农学报》2012年第5期134-138,共5页Acta Agriculturae Boreali-Sinica

基　　金：河南省农业科学院科技发展及示范推广专项(2011-196-59);国家自然基金项目(31101373);河南省重点攻关项目(102102110015)

摘　　要：以双孢蘑菇品种W-192为试验材料,系统研究了3个采收期(根据菌盖直径和生长期分别记菌盖直径2～3,3～4,4～5 cm为采收期Ⅰ、Ⅱ、Ⅲ)双孢蘑菇的含水量、开伞率、褐变度、呼吸强度、总多酚、多酚氧化酶(PPO)活性及丙二醛7个指标在低温贮藏(4±1)℃期间的变化特征。结果表明,与采收期Ⅰ和Ⅲ相比,采收期Ⅱ的双孢蘑菇延后3 d左右才出现呼吸高峰,丙二醛含量始终较低,含水量在贮藏前期较高,白度值在贮藏后期保持较好,开伞率在贮藏后期低于其他2组,体现出更好的耐贮藏性。对于低温贮藏的双孢蘑菇W-192,应在采收期Ⅱ采收;对即将上市的蘑菇可在采收期Ⅲ采收。The characteristics of physiological and biochemical changes of Agaricus bisporus strain W-192 harvested at three different times（according to the fungus lid and growth period,fungus lid 2-3,3-4,4-5 cm were marked as harvest times Ⅰ,Ⅱ and Ⅲ respectively） in low temperature storage（4±1）℃were studied systematically,these indexes included water content,percentage cap opening,browning degree,the respiration rate,total polyphenol,polyphenol oxidase（PPO） activity and malondialdehyde.Compared with harvest time Ⅰ and Ⅲ,the appearance of respiration peak of harvest time Ⅱ was later about 3 days,the content of malondialdehyde was always at a low level and it also had higher water content in early storage,white degree maintained good in late storage,while percentage cap opening was lower than the other two groups,harvest time Ⅱ had a better storage quality.From the analysis of fresh-keeping performance,Agaricus bisporus strain W-192 should be harvested at harvest times Ⅱ,while from biological yield the harvest times Ⅲ is appropriate for upcoming Agaricus bisporus.

关 键 词：双孢蘑菇 采收期 生理特性 贮藏品质 

分 类 号：S646.11[农业科学—蔬菜学]