在红葡萄酒中有效地预防乙基碳酸盐,通过使用固定酸尿治疗
Elisa Tavilli1, Marco Esti2, Marcello Fidaleo1
1Department for Innovation in Biological, Agro-Food and Forest Systems, University of Tuscia, 01100 Viterbo, Italy.
Foods (Basel, Switzerland)
|August 29, 2024
概括
固定尿素酶有效地从红葡萄酒中去除尿素,显著减少乙基碳酸盐 (EC) 的形成. 这种方法为控制储存期间葡萄酒污染物提供了一个有希望的解决方案.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 食品化学 食品化学
- 生物技术是生物技术.
背景情况:
- 气候变化给葡萄酒行业带来了挑战,增加了生物胺和乙基碳酸盐 (EC) 等化学食品污染物的风险.
- 乙基碳酸盐 (EC) 是一种潜在的致癌物质,可以在储存期间在葡萄酒中形成,受尿素等前体化合物的影响.
- 控制EC形成对于葡萄酒的安全和质量至关重要.
研究的目的:
- 调查固定酸尿酶在红葡萄酒中去除尿素的有效性.
- 评估尿素减少对葡萄酒储存期间乙基碳酸盐 (EC) 形成的影响.
- 在批量反应堆中使用固定尿素酶建模尿素去除的动力学.
主要方法:
- 红葡萄酒被固定酸尿酶处理以去除尿素.
- 该研究使用可分离的动力学来模拟催化剂失活和尿素水解.
- 尿素度和潜在的乙基碳酸盐 (PEC) 水平在重复的批次反应堆使用中随着时间的推移被监测.
主要成果:
- 固定尿素酶处理在28.5小时内将红葡萄酒中的尿素度从30毫克/升降至大约0.5毫克/升.
- 这种减少导致潜在乙基碳酸盐 (PEC) 从1662μg/L显著下降到93μg/L.
- 与自由尿素酶相比,固定化的酶表现出更高的效率,在更短的时间内达到较低的污染物水平.
结论:
- 尿素固定是红葡萄酒中尿素去除的高度有效的策略.
- 这种方法显著减少了乙基碳酸盐 (EC) 的形成,这是一个关键的过程污染物.
- 这些发现支持了固定尿素酶在葡萄酒安全方面在工业范围内应用的潜力.
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