摘要
为探究黄晶果适宜的采后贮藏温度、延长黄晶果的品质保存期,进一步开拓黄晶果市场,本实验以黄晶果果实为材料,通过测定5、10、15℃和20℃条件下黄晶果的主要品质指标和采后生理指标,研究不同贮藏温度对黄晶果采后生理和贮藏品质的影响。结果表明:低温贮藏能一定程度上保持黄晶果的品质,但5℃下贮藏时在第3天开始便出现冷害症状,表现为果面内凹并附着水渍、果皮褐变。与5、15℃和20℃贮藏组相比较,10℃下贮藏的黄晶果能保持较高的硬度、可溶性固形物质量分数和VC、总糖含量,保持较低的呼吸强度、细胞膜透性。进一步比较10℃和20℃的贮藏效果可知,10℃贮藏可以有效抑制黄晶果丙二醛含量、过氧化物酶活力和多酚氧化酶活力的升高,延缓黄晶果的衰老和褐变进程。综上,10℃是黄晶果较为适宜的贮藏温度,本研究结果可为黄晶果采后品质的保持提供理论依据。
The aim of the study was to investigate the appropriate postharvest storage temperature for Pouteria caimito Radlk.,to prolong its storage life,and more broadly to expand the market for Pouteria caimito.The effects of different storage temperatures on the postharvest physiology and storage quality of P.caimito were studied by determining the main quality indices and physiological indices of fruit samples stored at 5,10,15 or 20℃after harvest.The results showed that cold storage could maintain the quality of P.caimito to a certain extent,but chilling injury(CI)symptoms,characterized by pitting and water-soaked appearance of the fruit surface and peel browning,appeared after three days of storage at 5℃.Compared with the other three storage temperatures,storage at 10℃could maintain higher levels of fruit hardness,total soluble solids(TSS),vitamin C(VC)and total sugar,and lower respiratory intensity and cell membrane permeability.Compared with 20℃,storage at 10℃could inhibit the increase of malondialdehyde(MDA)content,peroxidase(POD)and polyphenol oxidase(PPO)activity,thereby delaying the senescence and browning of P.caimito.Therefore,10℃was the appropriate storage temperature for P.caimito.The results of this study will provide a theoretical basis for postharvest quality maintenance of P.caimito.
作者
何炬才
康仕成
张冬敏
张朝坤
李辉
洪森辉
余惠文
田奇琳
HE Jucai;KANG Shicheng;ZHANG Dongmin;ZHANG Chaokun;LI Hui;HONG Senhui;YU Huiwen;TIAN Qilin(Key Laboratory of Landscape Plants with Fujian and Taiwan Characteristics of Fujian Colleges and Universities,Minnan Normal University,Zhangzhou 363000,China;Zhangzhou Institute of Agricultural Sciences,Zhangzhou 363005,China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2023年第21期213-219,共7页
Food Science
基金
福建省自然科学基金项目(2020N0061,2021J05199)。
关键词
黄晶果
采后生理
贮藏品质
低温贮藏
Pouteria caimito
postharvest physiology
storage quality
cold storage