低密度聚乙烯袋厚度对杏鲍菇减压贮藏品质的影响  

Effect of Low Density Polyethylene Bag Thickness on Hypobaric Storage Quality of Pleurotus eryngii

作　　者：程倩颖 宋婷[1,2] 李志刚 冯翠萍[1] CHENG Qianying;SONG Ting;LI Zhigang;FENG Cuiping(College of Food Science and Engineering,Shanxi Agricultural Univercity,Jinzhong 030801,China;Jinzhong Institute of Quality and Technical Supervision and Inspection and Testing,Jinzhong 030600,China)

机构地区：[1]山西农业大学食品科学与工程学院,山西晋中030801 [2]晋中市质量技术监督检验测试所,山西晋中030600

出　　处：《食品工业科技》2021年第10期215-221,共7页Science and Technology of Food Industry

基　　金：山西省重点研发计划重点项目(201603D21106);山西省研究生教育创新项目(2019SY208);山西农谷建设科研专项(SXNGJSKYZX201903);食用菌山西省科技创新重点团队(201805D131009);黄土高原食用菌提质增效协同创新中心资助。

摘　　要：为了探寻杏鲍菇减压贮藏适宜的包装材料厚度,以杏鲍菇为试材,分别采用0.03、0.05、0.07 mm低密度聚乙烯袋(low density polyethylene,LDPE)抽真空减压至0.06 MPa包装后,置于4℃冷藏30 d,探究不同厚度包装材料对减压贮藏条件下杏鲍菇的生理生化指标及品质的变化规律。结果表明:到贮藏结束时,与0.03、0.05 mm处理组相比,0.07 mm低密度聚乙烯袋组的杏鲍菇水分含量最高,为80.42%,其能有效减少杏鲍菇失水,抑制呼吸速率,缓减过氧化氢酶(catalase,CAT)和超氧化物歧化酶(superoxide dismutase,SOD)活性下降,抑制丙二醛(malondialdehyde,MDA)含量及多酚氧化酶(polyphenol oxidase,PPO)活性的上升,对杏鲍菇的硬度、内聚性、弹性、咀嚼性等质构特性及色泽品质影响越小。因此,0.07 mm厚的低密度聚乙烯袋为杏鲍菇减压贮藏的适宜包装材料厚度,其能有效延缓杏鲍菇的后熟衰老,延长杏鲍菇的保鲜期。To explore the suitable thickness of packing material for decompression storage of Pleurotus eryngii,0.03,0.05,0.07 mm low density polyethylene bags(LDPE)were vacuumed to 0.06 MPa and then refrigerated under 4℃for 30 d to explore the physiological,biochemical indicators and quality effects of different thickness of packaging materials on Pleurotus eryngii under decompression storage conditions.The results showed that,by the end of storage,compared with the 0.03 and 0.05 mm treatment groups,the moisture content of the Pleurotus eryngii in the 0.07 mm low density polyethylene bag group was 80.42%,which could effectively reduce the water loss,inhibite the respiratory rate,slow down the decline of catalase(CAT)and superoxide dismutase(SOD)activities,inhibited the increase of malondialdehyde(MDA)content and polyphenol oxidase(PPO)activity,the smaller the effect on the texture characteristics and color quality of Pleurotus eryngii,such as hardness,cohesion,elasticity,and chewiness.Hence,the 0.07 mm low density polyethylene bag was the suitable packing material thickness for decompression storage of Pleurotus eryngii,and the preservation effect was better,which effectively delayed the post-maturing aging of Pleurotus eryngii and prolonged the preservation period of Pleurotus eryngii.

关 键 词：杏鲍菇 减压贮藏 聚乙烯袋 包装 低厚度 生理 品质 质构 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]