Pang Lin-Jiang, Adeel Muhammed, Shakoor Noman, Guo Ke-Rui, Ma Dai-Fu, Ahmad Muhammad Arslan, Lu Guo-Quan, Zhao Mei-Hui, Li Sheng-E, Rui Yu-Kui
College of Food and Health, Zhejiang A&F University, Hangzhou 311300, China.
School of Life Science, Jiangsu Normal University, Xuzhou 221116, China.
Nanomaterials (Basel). 2021 Sep 30;11(10):2572. doi: 10.3390/nano11102572.
About 45% of the world's fruit and vegetables are wasted, resulting in postharvest losses and contributing to economic losses ranging from $10 billion to $100 billion worldwide. Soft rot disease caused by leads to postharvest storage losses of sweet potatoes. Nanoscience stands as a new tool in our arsenal against these mounting challenges that will restrict efforts to achieve and maintain global food security. In this study, three nanomaterials (NMs) namely C, CuO, and TiO were evaluated for their potential application in the restriction of Rhizopus soft rot disease in two cultivars of sweet potato (Y25, J26). CuO NM exhibited a better antifungal effect than C and TiO NMs. The contents of three important hormones, indolepropionic acid (IPA), gibberellic acid 3 (GA-3), and indole-3-acetic acid (IAA) in the infected J26 sweet potato treated with 50 mg/L CuO NM were significantly higher than those of the control by 14.5%, 10.8%, and 24.1%. CuO and C NMs promoted antioxidants in both cultivars of sweet potato. Overall, CuO NM at 50 mg/L exhibited the best antifungal properties, followed by TiO NM and C NM, and these results were further confirmed through scanning electron microscope (SEM) analysis. The use of CuO NMs as an antifungal agent in the prevention of infections in sweet potatoes could greatly reduce postharvest storage and delivery losses.
全球约45%的水果和蔬菜被浪费，导致收获后损失，造成全球范围内100亿至1000亿美元的经济损失。由[病原体名称缺失]引起的软腐病会导致红薯收获后的储存损失。纳米科学是我们应对这些日益严峻挑战的新工具，这些挑战将限制实现和维持全球粮食安全的努力。在本研究中，评估了三种纳米材料（NMs），即碳（C）、氧化铜（CuO）和二氧化钛（TiO）在两个红薯品种（Y25、J26）中抑制根霉软腐病的潜在应用。氧化铜纳米材料比碳和二氧化钛纳米材料表现出更好的抗真菌效果。用50mg/L氧化铜纳米材料处理的受感染J26红薯中，三种重要激素，即吲哚丙酸（IPA）、赤霉素3（GA - 3）和吲哚 - 3 - 乙酸（IAA）的含量分别比对照显著高出14.5%、10.8%和24.1%。氧化铜和碳纳米材料促进了两个红薯品种中的抗氧化剂生成。总体而言，50mg/L的氧化铜纳米材料表现出最佳的抗真菌性能，其次是二氧化钛纳米材料和碳纳米材料，这些结果通过扫描电子显微镜（SEM）分析得到了进一步证实。使用氧化铜纳米材料作为抗真菌剂来预防红薯感染，可大大减少收获后的储存和运输损失。
