Quality Changes of Tomato Fruits with Different Maturity during Storage
SONG Mengyuan，NING Guofa，TIAN Yongqiang，GAO Lihong*
College of Horticulture，China Agricultural University，Beijing Key Laboratory of Growth and Development Regulation of Protected Vegetables，Beijing 100193，China
摘要 以京采8 号为试材，研究不同成熟度番茄果实在4 ℃条件下随贮藏时间的品质变化，并利用番茄品质指数（TQI）对果实品质进行综合评价。结果表明：不同成熟度番茄果实的硬度均随贮藏时间的延长呈逐渐降低趋势，可溶性固形物、VC 含量和糖酸比分别在贮藏3、7、7 d 时最高，硝酸盐含量在贮藏3 d 时最低；半熟期和坚熟期果实的可溶性糖含量在贮藏3 d 时最高，完熟期果实的可溶性糖含量则在贮藏7 d 时最高；半熟期和完熟期果实的有机酸含量在贮藏1 d 时最高，坚熟期果实的有机酸含量则在贮藏3 d 时最高；不同成熟度果实的TQI 在贮藏3 d 和7 d 时较高。综合来看，半熟期、坚熟期和完熟期的果实，采收后在4 ℃条件下分别贮藏7、3、3 d，可在延长番茄货架期的同时获得果实最佳综合品质。
Abstract：This study used tomato variety‘Jingcai No.8’as the experimental material，and investigated the quality changes of tomato fruits with different maturity during storage at 4 ℃．The fruit quality was comprehensively evaluated by using the tomato quality index（TQI）．The results showed that the hardness of fruits with different maturitydecreased gradually with increased storage time．The soluble solid content，VC content and sugar/acid ratio reached a maximum at 3 days，7 days and 7 days after storage，respectively，while the nitrate content reached a minimum at 3 days after storage．The soluble sugar contents of half-ripe and firm-ripe fruits maximun levels at 3 days after storage，while the soluble sugar content of full-ripe fruits reached a maximum at 7 days storage．The organic acid contents of half-ripe and full-ripe fruits showed the highest values at one day after storage，while the organic acid content of firm-ripe fruits exhibited the highest value at 3 days after storage．The TQI of fruits with different maturity showed relatively high level at 3 days and 7 days after storage．Taken altogether，postharvest storage of half-ripe，firm-ripe and full-ripe fruits at 4 ℃ respectively for 7 days，3 days and 3 days can be applied to obtain the best comprehensive quality and simultaneously to extend the shelf-life of tomatoes．
宋梦圆，宁国法，田永强，高丽红*. 不同成熟度番茄果实在贮藏期间的品质变化[J]. 中国蔬菜, 2023, 1(2): 45-50.
SONG Mengyuan，NING Guofa，TIAN Yongqiang，GAO Lihong*. Quality Changes of Tomato Fruits with Different Maturity during Storage. China Vegetables, 2023, 1(2): 45-50.
