脱水酸改性奇托桑的合成,表征和抗真菌特性
Lingling Li1, Yanran Xu1, Zhuo Xu1
1Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest forestry University, Kunming, Yunnan 650224, China; Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest forestry University, Kunming, Yunnan 650224, China.
International journal of biological macromolecules
|November 15, 2023
概括
脱基酸改性奇托 (DHA-CS) 显示出强大的抗真菌活性,提供安全的,生物衍生水果防腐剂. 这种素衍生物增强了水果的保质期,与商业真菌杀菌剂的有效性相匹配.
科学领域:
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
背景情况:
- 纯基托具有有限的生物活性,限制其在食品保存中的使用.
- 开发安全的,具有增强抗真菌性能的生物衍生防腐剂对食品工业至关重要.
研究的目的:
- 用脱乙酸 (DHA) 修改奇托 (CS) 来制造一种新的水果防腐剂.
- 描述修改后的奇托衍生物,并评估它们对植物病原体的抗真菌功效.
主要方法:
- 奇托桑被用脱酸修饰. 奇托桑被用脱酸修饰.
- 使用FTIR,1H NMR和XRD进行结构性表征.
- 通过辐射生长和最小抑制度 (MIC) 测定对 Penicillium digitatum 和 Penicillium italicum 的抗真菌活性进行评估.
主要成果:
- 在C-6基的C-6基组的DHA结合,保留C-2氨基组,产生了最强的抗真菌作用 (MIC = 200μg/mL).
- 修改后的奇托衍生物 (CSDA) 显示出与商用杀菌剂Imazalil.com可比的抗真菌功效.
- 在度>100微克/毫升时,CSDA实现了100%的P. digitatum抑制,并延长了水果的保质期.
结论:
- 脱基酸改性奇托 (DHA-CS) 是一种有前途,安全和有效的生物衍生抗真菌剂,用于果物保存.
- 具体的修改策略增强了奇托桑的抗真菌特性,为合成防腐剂提供了可持续的替代品.
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