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。
关键词:
双孢蘑菇,
采收期,
生理特性,
贮藏品质
Abstract: 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.
Key words:
Agaricus bisporus,
Harvest time,
Physiological property,
Storage quality
中图分类号:
王赵改, 杨慧, 王安建, 杨丰菊, 魏书信. 采收期对双孢蘑菇生理特性及贮藏品质的影响[J]. 华北农学报, 2012, 27(5): 134-138. doi: 10.3969/j.issn.1000-7091.2012.05.026.
WANG Zhao-gai, YANG Hui, WANG An-jian, YANG Feng-ju, WEI Shu-xin. Effect of Harvest Time on Physiological Property and Storage Quality of Agaricus bisporus[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(5): 134-138. doi: 10.3969/j.issn.1000-7091.2012.05.026.