摘要
以‘夏黑’葡萄为试材,采用3 mg·L^(-1)亚硒酸钠溶液对其进行浸泡和喷施处理,研究了采后2种方式硒处理对葡萄常温贮藏品质和保鲜效果的影响,结合主成分分析筛选最有效的硒处理方式并综合评价其贮藏期限,以期为外源硒在葡萄果实采后常温保鲜中的应用提供参考依据。结果表明:与CK相比,采后硒处理有效延缓了贮藏期间‘夏黑’葡萄果实好果率和硬度的下降,维持了较高的维生素C、可溶性固形物、可滴定酸含量,抑制了失重率和丙二醛含量的升高,提高了过氧化物酶活性;从主成分分析的综合得分来看,各处理对‘夏黑’葡萄常温贮藏的保鲜效果表现为硒浸泡>硒喷施>CK,且采后硒浸泡处理一定程度延长了2 d的常温贮藏时间。
Grape variety of‘Summer Black’was used as experimental material,soaking or spraying with 3 mg·L^(-1) sodium selenite solution,the effects of 2 kinds of selenium treatment on grape storage quality and preservation effect were measured to screen out the most effective selenium treatment method by principal component analysis,in order to provide a reference for the application of exogenous selenium in post-harvest storage of grape at room temperature.The results showed that compared with the CK,post-harvest selenium treatment effectively delayed the decrease of the rate of good fruit and hardness,maintained the higher content of vitamin C,soluble solids and titratable acid,inhibited the increase of weight loss rate and malondialdehyde,improved the activity of POD during room temperture storage.According to the comprehensive score obtained from principal component analysis,the fresh-keeping effect of all treatments on‘Summer Black’grape stored at room temperature was selenium soaking>selenium spraying>CK,and the post-harvest selenium soaking treatment extended 2 days storage time at room temperature to a certain extent.
作者
宁娜
孔德婷
侬永纳
南立军
徐成东
NING Na;KONG Deting;NONG Yongna;NAN Lijun;XU Chengdong(College of Resources Environment and Chemistry,Chuxiong Normal University,Chuxiong,Yunnan 675000)
出处
《北方园艺》
CAS
北大核心
2022年第4期85-91,共7页
Northern Horticulture
基金
国家自然科学基金地区基金资助项目(32160584)
云南省地方本科高校(部分)基础研究联合专项青年资助项目(2018FH001-122)
楚雄师范学院校级科研资助项目(XJZD1701)。
关键词
亚硒酸钠
浸泡
喷施
贮藏品质
主成分分析
sodium selenite
soaking treatment
spraying treatment
storage quality
principle components analysis
