摘要
采用海藻酸钠(Sodium Alginate,SA,2%(m/v))和百里香酚/海藻酸钠(Thymol/Sodium Alginate,Thy/SA,Thy终浓度为40 mg/L)涂膜分别对茄梨进行处理,于20℃下进行贮藏,以果实硬度、可溶性固形物含量、抗坏血酸含量、可滴定酸含量、丙二醛含量、多酚氧化酶活性等指标来判断茄梨的品质变化。结果表明,Thy/SA涂膜使得茄梨果实的贮藏期由9 d(对照组)延长至18 d,有效延缓了果实硬度、可滴定酸、抗坏血酸和总酚含量的下降,以及可溶性固形物、丙二醛含量、多酚氧化酶和过氧化氢酶活性的上升。由此可见,Thy/SA涂膜可较好地维持贮藏过程中茄梨的果实品质,进而延长了其贮藏期。
Clapp Favonite pear fruit were treated with sodium alginate( SA,2%( m/v)) and thymol/sodium alginate( Thy/SA,the final concentration of Thy was 40 mg/L) coatings and stored at 20 ℃. Fruit firmness,soluble solids content,ascorbic acid content,titratable acid content,malondialdehyde content,polyphenol oxidase activity and other indicators were determined to evaluate the quality changes of fruit.The results showed that,the storage period of fruit coated with Thy/SA was prolonged from9 d( control group) to 18 d. Thy/SA coating slowed down the decrease of firmness,titratable acid,ascorbic acid,total phenol content,and also inhibited the increase of soluble solids and malondialdehyde content,and the activity of polyphenol oxidase and catalase. Therefore,Thy/SA coating could effectively maintain the fruit quality of Clapp Favonite pear during storage,thereby prolong its storage period.
作者
陈敬鑫
吴安康
孟坤
李永新
葛永红
朱丹实
励建荣
CHEN Jing-xin;WU An-kang;MENG Kun;LI Yong-xin;GE Yong-hong;ZHU Dan-shi;LI Jian-rong(College of Food Science and EngineeringBohai University,Jinzhou 121013,China;National&Local Joint Engineering Research Center of Storage,Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products,Jinzhou 121013,China;Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences,Beijing 100081,China;School of Agricultural and Food Science,Zhejiang A&F University,Lin'an 311300,China)
出处
《食品工业科技》
CAS
北大核心
2020年第4期229-233,241,共6页
Science and Technology of Food Industry
基金
辽宁省食品产业校企联盟开放课题(2018LNSPLM0105)
“十三五”国家重点研发计划(2017YFD0400106)
关键词
茄梨
百里香酚
海藻酸钠
涂膜保鲜
贮藏品质
Clapp Favonite pear
thymol
sodium alginate
coating preservation
storage quality
