Quality and Internal Characteristics of Huanghua Pears (Pyrus Pyrifolia Nakai,***) Treated with Different Kinds of Coatings during Long-Term Storage

作     者：Ran Zhou~1 Yun Mo~2 Yunfei Li~(2*) Yanyun Zhao~3 Guixiang Zhang~4 Yunsheng Hu~4 (1 Institute of Refrigeration & Cryogenic Engineering,Shanghai Jiao Tong University,Shanghai,China 2 Department of Food Science & Technology,School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai,China 3 Department of Food Science & Technology,Oregon State University,Corvallis,USA 4 Department of Radiology,Shanghai Jiao Tong University Affiliated First People’s Hospital,Shanghai,China) 

会议名称：《中国园艺学会第八届青年学术讨论会暨现代园艺论坛》

会议日期：2008年

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

关 键 词：Huanghua pears Coatings Cold storage Quality TPA Magnetic resonance imaging 

摘      要：We studied the quality of and internal changes in Huanghua pears (Pyrus pyrifolia Nakai,***) coated with shellac,SemperfreshTM (sucrose polyester base coating),and carboxymethyl chitosan (CMC) during cold storage (4℃). The changes in respiration rate,weight loss,cell membrane permeability and texture profile analysis (TPA) such as hardness, brittleness and chewiness were recorded periodically for up to 60 days after harvest to compare the effects of the applied coatings. Magnetic resonance imaging was used to inspect the internal characteristics of pears after *** soluble solid contents (SSCs),titratahle acidity,ascorbic acid concentration,and taste scores were also *** data suggested that shellac coating was more effective in reducing the respiration rate and weight loss and in maintaining the quality of pears than Semperfresh and CMC coatings.