Zhou Qingxin, Fu Maorun, Xu Minhui, Chen Xiangyan, Qiu Jiying, Wang Fengli, Yan Ran, Wang Junhua, Zhao Shuangzhi, Xin Xue, Chen Leilei
Institute of Agro-Food Science and Technology Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Technology of Shandong Province/Key Laboratory of Novel Food Resources Processing Ministry of Agriculture Jinan China.
College of Life Science Shandong Normal University Jinan China.
Food Sci Nutr. 2020 Feb 7;8(3):1499-1508. doi: 10.1002/fsn3.1434. eCollection 2020 Mar.
We investigated the effects and possible mechanisms of NCPSJ7 against the gray mold caused by in the postharvest Red Globe grapes. The disease incidence, lesion diameter, decay index, and some resistance-related enzymes were evaluated. The antioxidant capacity of grape treated with 1 × 10 CFU/ml alone and combined with 1 × 10 CFU/ml NCPSJ7 was also determined. The results showed that NCPSJ7 + reduced the disease incidence, lesion diameter, and decay index of postharvest grapes and enhanced the activities of polyphenol oxidase, peroxidase, chitinase, and β-1,3-glucanase during different storage periods. Furthermore, the oxidative resistance, demonstrated by an escalating trend in the total phenolic content, DPPH free radical clearance rate, reducing power, and superoxide anion clearance rate after lesion presence, was improved. However, NCPSJ7 showed an inhibitory effect on gray mold, but resulted in the reduced antioxidant capacity in the grapes.
我们研究了NCPSJ7对采后红地球葡萄灰霉病的防治效果及其可能的作用机制。评估了发病率、病斑直径、腐烂指数以及一些与抗性相关的酶。还测定了单独用1×10 CFU/ml处理以及与1×10 CFU/ml NCPSJ7联合处理的葡萄的抗氧化能力。结果表明，NCPSJ7 + 降低了采后葡萄的发病率、病斑直径和腐烂指数，并在不同贮藏期提高了多酚氧化酶、过氧化物酶、几丁质酶和β-1,3-葡聚糖酶的活性。此外，损伤后总酚含量、DPPH自由基清除率、还原力和超氧阴离子清除率呈上升趋势，表明抗氧化能力得到提高。然而，NCPSJ7对灰霉病有抑制作用，但导致葡萄的抗氧化能力下降。
