Imm Seulgi, Kim Yebeen, Imm Jee-Young, Chang Yoonjee
Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, 02707 Republic of Korea.
Food Sci Biotechnol. 2024 Mar 18;33(12):2789-2796. doi: 10.1007/s10068-024-01548-6. eCollection 2024 Sep.
This study was conducted to propose a new strategy for preventing -mediated potato soft rot through the development of a carboxymethyl cellulose (CMC)-based antibacterial coating incorporated with green tea extract (GTE). GTE/CMC films resulted in increased water vapor permeability due to the incorporation of polar groups in GTE. In the antibacterial test against , the MBC value of GTE was 2 mg/mL. The time-kill assay demonstrated that GTE/CMC (2 × MBC) completely eradicated bacteria within 0.5 h (~6.4 log CFU/mL reduction). The potential of GTE/CMC to prevent potato soft rot was evaluated by monitoring the potato appearance, maceration area, and texture properties. The GTE/CMC-coated potatoes exhibited significantly reduced maceration area and remained firm for 3 days. Moreover, there was no change in the antimicrobial efficacy for 8 weeks. The developed GTE/CMC could be used as a biological coating system for postharvest storage and soft rot prevention.
The online version contains supplementary material available at 10.1007/s10068-024-01548-6.
本研究旨在通过开发一种含有绿茶提取物（GTE）的羧甲基纤维素（CMC）基抗菌涂层，提出一种预防细菌介导的马铃薯软腐病的新策略。由于GTE中含有极性基团，GTE/CMC薄膜的水蒸气透过率增加。在对[具体细菌名称缺失]的抗菌试验中，GTE的最低杀菌浓度（MBC）值为2mg/mL。时间杀菌试验表明，GTE/CMC（2×MBC）在0.5小时内完全根除细菌（约减少6.4 log CFU/mL）。通过监测马铃薯的外观、浸软面积和质地特性，评估了GTE/CMC预防马铃薯软腐病的潜力。GTE/CMC涂层的马铃薯浸软面积显著减少，并且在3天内保持坚硬。此外，8周内抗菌效果没有变化。所开发的GTE/CMC可作为一种用于收获后储存和预防软腐病的生物涂层系统。
在线版本包含可在10.1007/s10068-024-01548-6获取的补充材料。
