The combined treatment of broccoli florets with kojic acid and calcium chloride maintains post-harvest quality and inhibits off-odor production
The combined treatment of broccoli florets with kojic acid and calcium chloride maintains post-harvest quality and inhibits off-odor production
复制标题
DOI：
10.1016/j.scienta.2019.109019
复制
发表时间：
2020-02
影响因子：
4.3
通讯作者：
Zhicheng Yan;Junyan Shi;Lipu Gao;Qing Wang;Jinhua Zuo
中科院分区：
文献类型：
--
作者：
Zhicheng Yan;Junyan Shi;Lipu Gao;Qing Wang;Jinhua Zuo
研究了25 mg L− 1曲酸和10 g L− 1氯化钙（KA + CaCl2）组合对西兰花采后衰老的影响，沿着潜在的作用方式。结果表明，KA + CaCl2处理能保持青花菜花的感官评分，抑制花的黄化，延长货架期。KA + CaCl2处理降低了呼吸速率和乙烯释放量，抑制了叶绿素的降解。此外，抗坏血酸过氧化物酶、过氧化物酶和过氧化氢酶的相对基因表达和酶活性升高，而参与叶绿素降解的基因（BoCHL1、BoCHL2、BoCHL3、BoPAO和BoPPH）的表达下调。KA + CaCl2还保持了西兰花小花产生的特征挥发物的产生，如使用电子鼻测量的。本研究结果为KA + CaCl2抑制西兰花采后衰老和延长其货架期的能力提供了新的见解。
The effect of a combination of 25 mg L−1kojic acid and 10 g L−1calcium chloride (KA + CaCl2) on the postharvest senescence of broccoli was investigated, along with potential modes of action. Results indicated that the KA + CaCl2treatment of broccoli florets maintained their sensory evaluation scores, inhibited yellowing of florets, and generally prolonged shelf-life. The KA + CaCl2treatment decreased the rate of respiration, ethylene production, and inhibited the degradation of chlorophyll. Furthermore, the relative gene expression and enzyme activity of ascorbate peroxidase, peroxidase, and catalase were elevated, and the expression of genes (BoCHL1,BoCHL2,BoCHL3,BoPAO, andBoPPH) involved in chlorophyll degradation were down-regulated. KA + CaCl2also maintained the production of the characteristic volatiles produced by broccoli florets as measured with the use of an electronic nose. Results of the present study provide new insights into the ability of KA + CaCl2to inhibit the postharvest senescence of broccoli florets and extend their shelf-life.