摘要
本研究以‘硬丝’杨梅为试材,比较预冷前后进行1-MCP处理,及贮藏温度对杨梅采后贮藏品质及货架期的影响。预冷结合1-MCP处理,可延缓贮藏期间杨梅果实单果重、硬度的下降,抑制膜脂过氧化产物MDA含量和呼吸强度的上升,延缓贮藏6 d内果实可溶性糖、可滴定酸含量的降低,但对延缓花色苷含量降解效果不明显。预冷前或后进行1-MCP处理,在延缓果实品质劣化方面并无显著差异。预冷处理可有效降低果实入库时的呼吸强度,但需结合1-MCP处理才能有效维持贮藏期间果实呼吸强度处于较低水平。预冷后1-MCP处理,杨梅果实可贮藏于7℃中5 d,出库后,货架期可达5 d,腐烂率<10%,与贮藏于4℃中无显著差异,可有效降低冷库能耗成本,贮藏效果优于预冷前1-MCP处理。考虑生产实际,杨梅采后处理应及时装箱,加冰壶,置于4℃预冷处理,冷藏运输应控制在5 h以内。入库前使用7μL/L的1-MCP于4℃冷库中熏蒸18 h。贮藏期可置于4~7℃冷库中贮藏5 d,于第6天上架销售,货架期可达5 d,具有较好的应用前景。
The effects of pre-cooling timing,1-MCP treatment and storage temperature on postharvest quality and shelf life of Myrica rubra‘Ying Si’were compared.The results showed pre-cooling combined with 1-MCP treatment could postpone the decrease of fruit weight and firmness during storage,inhibit the increase of respiration intensity caused by the accumulation of MDA,and postpone the decrease of soluble sugar and titratable acid content within 6 days of storage,but had no effect on postponing the degradation of anthocyanin.1-MCP treatment before or after pre-cooling had no significant difference in retarding fruit quality deterioration.Pre-cooling treatment could effectively reduce the respiratory intensity of fruit at the beginning of storage,but only combined with 1-MCP treatment could effectively maintain the respiratory intensity of fruit at a low-level during storage.Fruit with 1-MCP treatment after pre-cooling could be stored at 7℃for 5 days,the shelf life could be up to 5 days,and the rot rate was less than 10%(no significant difference between 4℃and 7℃)with less energy consumption cost,of which the storage effect was better than 1-MCP treatment before pre-cooling.Considering the commercial application,the fruit should be packed in time with ice bag after harvesting at 4℃for pre-cooling treatment.Refrigerated transport should be controlled within 5 hours.Before storage,the fruit should be fumigated with 1-MCP of 7 mL/L 18 hours at 4℃.The fruit could be stored at 4-7℃for 5 days,and sold on the shelf on the 6th day.The shelf life could reach 5 days,which has a good commercial application prospect.
作者
王威
严丽
谢倩
陈清西
WANG Wei;YAN Li;XIE Qian;CHEN Qingxi(College of Horticulture,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)
出处
《热带作物学报》
CSCD
北大核心
2019年第7期1406-1412,共7页
Chinese Journal of Tropical Crops
基金
福建农林大学科技创新专项基金项目“特色园艺植物品种创新与产业化”(No.CXZX2017186)
关键词
杨梅
预冷
1-MCP
保鲜
Myrica rubra(Lour.)S.et Zucc.
pre-cooling
1-MCP
preservation
