文章摘要
张鹏;秦骅;李江阔;田世平;颜廷才;李博强.1-MCP、乙烯吸收剂双控对富士苹果贮后货架品质的影响[J].中国食品学报,2019,19(9):179-188
1-MCP、乙烯吸收剂双控对富士苹果贮后货架品质的影响
Effect of 1-MCP Combined with Ethylene Absorbent on the Shelf Quality of Fuji Apple after Cold Storage
  
DOI:
中文关键词: 富士苹果  1-甲基环丙稀  乙烯吸收剂  贮后品质  挥发性成分
英文关键词: Fuji apples  1-methylcyclopropene  ethylene absorbent  storage quality  volatile components
基金项目:“十三五”国家重点研发计划项目(2016YFD0400903)
作者单位
张鹏;秦骅;李江阔;田世平;颜廷才;李博强 国家农产品保鲜工程技术研究中心(天津)天津市农产品采后生理与贮藏保鲜重点实验室天津300384沈阳农业大学食品学院沈阳110866中国科学院植物研究所资源植物重点实验室北京100093 
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中文摘要:
      以富士苹果为试验材料,采后进行1-甲基环丙烯(1-MCP)(1 μL/L)处理、乙烯吸收剂处理(EA)、1-MCP(1 μL/L)结合EA处理,在精准温控库(-0.5 ± 0.3) ℃贮藏10个月后出库,探讨不同处理对苹果贮后货架品质的影响,采用顶空固相微萃取-气相色谱-质谱(HS-SPME-GC-MS)联用技术分析不同处理间的挥发性成分变化规律。经过1-MCP、EA、1-MCP+EA处理后的果实显著减缓果实的呼吸强度,推迟呼吸高峰的出现,抑制乙烯生成速率的增加,能有效减缓果实可滴定酸、可溶性固形物的降低,维持果实的固有硬度、回复性、凝聚性、咀嚼性等质地,其中,1-MCP+EA效果最好。利用HS-SPME-GC-MS检测苹果的主要挥发性物质,与单独使用EA相比,1-MCP+EA处理不但维持了酯类物质的相对含量,也保持了醛类物质的相对含量,减缓醛类物质主要呈味物质正己醛含量的降低,醇类物质主要呈味物质2-甲基-1-丁醇的降低。与1-MCP单独处理相比,减缓醛类物质的下降,维持酯类物质相对含量,减缓醇类物质的减少。通过线性判别分析(LDA)可有效区分不同货架时间的苹果,至少可延缓5 d的挥发性物质变化,1-MCP+EA挥发性成分保持最优。
英文摘要:
      The effects of 1-methylcyclopropene (1-MCP) (1 μL/L), ethylene absorbent (EA), 1-MCP (1 μL/L) combined with EA on the shelf quality of apple after storage was carried out for 10 months after cold storage in a precise temperature control (-0.5 ± 0.3) ℃. HS-SPME-GC-MS was used to analyze the variation of volatile components among different treatments. The results showed that 1-MCP, EA, 1-MCP+EA significantly reduced the respiration rate of the fruit, delayed the emergence of respiration peak and inhibited the increase of ethylene production rate, which could effectively reduce the decrease of titratable acid and soluble solid, Maintain the fruit of the inherent hardness, recovery, cohesion, chewing and other texture, which, 1-MCP + EA the best. The main volatile substances of apple were detected by HS-SPME-GC-MS. Compared with EA alone, 1-MCP + EA treatment not only maintained the relative content of ester, but also maintained the relative content of aldehydes content of the aldehydes is mainly reduced the content of n-hexanaldehyde, and the alcohol substance mainly reduces the content of 2-methyl-1-butanol. At the same time and 1-MCP alone treatment, the effect is better to slow down the decline in aldehydes, maintaining the relative content of esters, reducing the reduction of alcohol. Through the linear discriminant analysis (LDA) can effectively distinguish the different shelf time of the apple can delay the 5 d of volatile matter change, 1-MCP + EA volatile ingredients to maintain the best.
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