用复合化学溶液处理并随后包装的鲜切水芹的叶绿素降解和木质化
Chlorophyll degradation and lignification of fresh-cut water fennel treated with a complex chemical solution and subsequent packaging.
作者信息
Yang Runqiang, Wang Jingru, Nie Xintian, Zhuang Yan, Gu Zhenxin, Guo Qianghui
机构信息
1College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China.
2College of Engineering, Nanjing Agricultural University, Nanjing, 210000 China.
出版信息
Food Sci Biotechnol. 2016 Apr 30;25(2):483-488. doi: 10.1007/s10068-016-0067-x. eCollection 2016.
Fresh-cut water fennel was treated with a novel complex chemical solution and subsequently packaged prior to refrigerated storage. Chlorophyll degradation and lignification were investigated. The complex solution consisted of 1.16 g/L calcium lactate, 150 mg/L zinc acetate, and 15.29 mg/L salicylic acid. Chlorophyllase, Mg-dechelatase, and chlorophyll-degrading peroxidase activities of water fennel decreased after immersion in the complex solution, which delayed chlorophyll degradation and increased * and * values. Complex solution treatment also reduced phenylalanine ammonia-lyase (PAL) activity and, thus, inhibited accumulation of lignin. After the complex solution treatment, packaging in high-density polypropylene plastic bags further retained chlorophylls and alleviated lignification of water fennel. Treatment with a complex chemical solution and subsequent packaging can maintain the quality, delay senescence, and improve the shelf life of water fennel.
将鲜切水芹用一种新型复合化学溶液处理，随后在冷藏储存前进行包装。研究了叶绿素降解和木质化情况。该复合溶液由1.16 g/L乳酸钙、150 mg/L醋酸锌和15.29 mg/L水杨酸组成。水芹浸入复合溶液后，叶绿素酶、镁脱螯合酶和叶绿素降解过氧化物酶的活性降低，这延缓了叶绿素降解并增加了和值。复合溶液处理还降低了苯丙氨酸解氨酶（PAL）的活性，从而抑制了木质素的积累。复合溶液处理后，用高密度聚丙烯塑料袋包装进一步保留了叶绿素，并减轻了水芹的木质化。用复合化学溶液处理并随后进行包装可以保持水芹的品质，延缓衰老，并延长其货架期。
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