DONG Yu,ZHI Huanhuan.Effects of Exogenous Ethylene on Shelf Quality of Controlled Atmosphere Stored ‘d′Anjou’ Pears and Stimulated Cold Transport[J].Northern Horticulture,2022,(24):65-73.[doi:10.11937/bfyy.20221382]
外源乙烯对气调贮藏后的‘安久’梨及其冷藏运输后货架品质的影响
- Title:
- Effects of Exogenous Ethylene on Shelf Quality of Controlled Atmosphere Stored ‘d′Anjou’ Pears and Stimulated Cold Transport
- 文献标志码:
- A
- 摘要:
- 以‘安久’梨为试材，利用150 μL·L-1乙烯气体对气调贮藏（2.25% O2和<0.1% CO2）3个月后的梨果实进行处理，研究了外源乙烯处理和冷藏3周（模拟运输）对果实货架期乙烯生成率、果肉硬度、感官品质、果皮叶绿素含量、可溶性固形物含量、可滴定酸、腐烂率和虎皮病发病率等的影响，以期为其商业应用提供参考依据。结果表明：外源乙烯处理和模拟运输后，乙烯处理的果肉硬度均在货架期3～7 d内降低至24 N以下，此时果实肉质松软、多汁、香气十足且甜，而对照果肉硬度只在货架期第7天低于24 N并达到最佳感官品质。外源乙烯处理后的货架期第7天，乙烯处理的果实和对照均未发现腐烂，但虎皮病发病率分别为13.33%和3.33%。经模拟运输后，虽然乙烯处理的果实在货架期第7天其果实腐烂指数和虎皮病发病率上升至3.33和16.67%，但仍处于商业可接受的范围之内。尽管外源乙烯处理造成果皮叶绿素和可滴定酸降解加速，但是较高的可溶性固形物含量和被提前的最佳赏味期能提高消费者的购买欲。因此，对气调贮藏早期的梨果实进行外源乙烯处理，可使果实提前软化，并保持较高的感官品质和较低的生理病害。
- Abstract:
- ‘d′Anjou’ pears were subjected to 150 μL·L-1 exogenous ethylene gas after storing in a controlled atmosphere (CA,2.25% O2 and <0.1% CO2) for 3 months to investigate the effects of exogenous ethylene and stimulated transport on ethylene production rate,flesh firmness,sensory quality,peel chlorophyll content,soluble solids content,titratable acid,decay,and superficial scald,in order to provide reference for its applications in business.The results showed that,regardless of exogenous ethylene treatment and simulated transportation,the flesh firmness of ethylene-treated pears could decrease below 24 N after 3-7 days of shelf life and a buttery-juicy texture with full flavor and sweetness was obtained in these pears.However,the flesh firmness of control fruit decreased below 24 N and developed the desirable sensory quality after 7 days of shelf life.After the exogenous ethylene treatment plus 7 days of shelf life,no fruit with decay was observed in the control and ethylene treatments,while the incidences of superficial scald increased to 13.33% and 3.33%,respectively.Although the decay index and superficial scald incidence of ethylene-treated pears increased to 3.33 and 16.67% after stimulated transport plus 7 days of shelf life,the rates of disorders remained in the commercially acceptable range.The exogenous ethylene treatment resulted in the rapid degradation of peel chlorophyll and titritable acidity,while the high soluble solids content and early-developed desirable sensory quality might increase the purchasing decisions of consumers.Therefore,exogenous ethylene treatment could make early CA-stored pears soften and maintain high sensory quality with low physiological disorders.
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备注/Memo
第一作者简介：董宇（1983-），男，博士，助理研究员，现主要从事农产品贮藏与保鲜等研究工作。E-mail：dongyu8306@hotmail.com.基金项目：Washington Tree Fruit Research Commission（PR-17-106）；国家自然科学基金资助项目（31501539）；青海省农业有害生物综合治理重点实验室资助项目（2022-ZJ-Y10）。收稿日期：2022-04-08