细菌生物多样性和优化试点植物性储存参数的甜菜汁在埃及环境条件下的细菌生物多样性
Marwa Abdelhak1, Osama Abdel-Hafeez Mohamed Al-Bedak2,3, Mahmoud N Abdelmoez4,5
1Department of Science and Technology of Sugar Industry, Faculty of Sugar and Integrated Industries Technology, Assiut University, Assiut, 71511, Egypt.
Scientific reports
|May 16, 2025
概括
这项研究优化了在炎热的气候下使用生物杀菌剂和表面密封的甜菜厚汁储存. 蜂β酸和KEBOCID 310有效地降低了细菌的生长,改善了糖的产量,减少了腐烂.
科学领域:
- 农业科学 农业科学
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
背景情况:
- 在像埃及这样的炎热气候下,保持甜菜汁的低储存温度是具有挑战性的和昂贵的.
- 果汁的恶化影响白糖产量,增加了糖业适应气候变化的需要.
研究的目的:
- 为了在模拟的炎热天气条件下优化甜菜汁 (67-69°Brix) 的储存.
- 评估生物制剂 (Hop ß-酸和KEBOCID 310) 和表面密封 (NaOH) 在防止微生物腐烂方面的有效性.
- 分析储存温度 (15,25,35°C) 对细菌生长,pH值,乳酸和降解糖的影响.
主要方法:
- 一个带有12个储存的试点工厂被用来在不同温度和Brix水平下储存甜菜厚汁.
- 生物杀伤剂Betastab® XL (Hopβ-酸) 和KEBOCID 310 (二甲基二甲基碳酸盐) 在40ppm的剂量下使用.
- 使用25.0%的NaOH进行表面密封和去除空气;监测细菌计数 (CFU),pH,乳酸 (LA) 和降解糖 (RS).
- 使用16S rRNA测序确定了细菌物种,并测试了生物杀菌剂的抗菌活性在20,40和60 ppm.
主要成果:
- 随着储存时间的增加,细菌数量增加,在35°C的控制组中达到峰值.
- 乳酸和降解糖仍然很低;pH值稳定,除了35°C的对照下降.
- 蜂β酸对大多数细菌有效,而KEBOCID 310则显示出广泛的有效性,在40和60ppm的最佳结果.
结论:
- 优化的储存条件,包括生物杀菌剂的应用和温度控制,可以显著减少甜菜粗汁的恶化.
- 蜂β酸和KEBOCID 310显示出在温暖的气候中具有成本效益的果汁保存的潜力.
- 识别细菌来源和类型对于有效管理和提高糖生产效率至关重要.
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