| 马 锞1，徐 匆1，黄应维2，张长勇2，罗华建1，罗 诗1，胡文锋2.肠膜明串珠菌复合生物保鲜剂
对龙眼果实的保鲜作用[J].广东农业科学,2015,42(15):65-71 |
|
查看全文
HTML
肠膜明串珠菌复合生物保鲜剂
对龙眼果实的保鲜作用 |
| Bio-preservation of longan fruits by complex preservativewith Leuconostoc mesenteroides dgnkzx002 |
| |
| DOI： |
| 中文关键词: 龙眼 生物保鲜 肠膜明串珠菌 |
| 英文关键词: longan fruit bio-preservation Leuconostoc mesenteroides |
| 基金项目:东莞市高等院校科研机构科技计划项目
（2011108101008）；广东省现代农业产业技术体系专项
（粤财教［2009］356 号） |
|
| 摘要点击次数: 1661 |
| 全文下载次数: 672 |
| 中文摘要: |
| 以石硖、东丰龙眼（Dimocarpus longan Lour. cv. Shixia，Dongfeng）果实为试材，采用单因素试验测
定龙眼的商品率、果实品质及果皮多酚氧化酶（PPO）、过氧化物酶（POD）和超氧化物歧化酶（SOD）的活
性；采用与L9（34）正交试验测定果皮SOD 的活性，结果显示肠膜明串珠菌dgnkzx002 对果皮SOD 活性的影
响极显著，1.5% 乳酸钠影响显著，0.1% 壳聚糖+ 2% 柠檬酸影响最小，根据均值分析获得最优复合生物保鲜
剂配方为1.72×107 CFU/mL 肠膜明串珠菌dgnkzx002 +（0.1% 壳聚糖+2% 柠檬酸）+ 1.5% 乳酸钠。复合生物保
鲜剂处理果实的商品率优于对照，TSS 含量、Vc 含量比贮藏初始分别降低了16%、21.22%，与对照存在显著差
异；果皮PPO、POD 的活性分别为40、565 U/min·g，优于对照的122、1 920 U/min·g。 |
| 英文摘要: |
| To investigate the preservation effects of lactic acid bacteria on Longan fruit（Dimocarpus longan
Lour. cv. Shixia，Dongfeng）and to develop a complex bio-preservative agent as an alternative to chemicals，this paper
optimized the ingredients of the complex bio-preservative agent by single factor experiments and L9（34）orthogonal
design. Results indicated that L. mesenteroides had extremely significant influence on SOD activity in fruit peel，while
1.5% sodium lactate had a significant impact and the effect of 0.1% chitosan + 2% citric acid was minimun. The complex
bio-preservative agent with 1.72×107 CFU/mL Leuconostoc mesenteroides dgnkzx002 +（0.1% chitosan + 2% citric
acid）+1.5% sodium lactate had the most stable preservative effects on longan fruits. Results showed that total soluble
solids（TSS）and vitamin C content of longan fruits treated with the complex bio-preservative agent decreased by
16%，21.22%，respectively，had significant differences with control. And the activity of PPO and POD in fruit peel were
40 and 565 U/min·g，lower than 122，1 920 U/min·g in control group. |
|
查看/发表评论 下载PDF阅读器 |
