结合连续流程的创新吸附材料对白葡萄酒蛋白质和氧化稳定的作用
Arianna Ricci1, Andrea Versari1, Luigi Ragni1
1Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521 Cesena, FC, Italy; Inter-Departmental Centre for Agri-Food Industrial Research, Alma Mater Studiorum, University of Bologna, Via Quinto Bucci 336, 47521 Cesena, FC, Italy.
Food chemistry
|March 2, 2024
概括
这项研究引入了一种新的方法,使用二氧化 (TiO2) 复合吸附剂通过减少蛋白质和防止氧化来稳定白葡萄酒. 这种创新处理有效地提高了葡萄酒的稳定性,而不会释放污染物.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 材料科学 材料科学 材料科学
- 食品化学 食品化学
背景情况:
- 葡萄酒的不稳定性通常是由蛋白质聚合和氧化引起的.
- 传统的蛋白质稳定方法可能很苛刻,会影响葡萄酒的质量.
- 与致病性相关的蛋白质 (PRPs) 是葡萄酒雾和不稳定性的关键因素.
研究的目的:
- 评估一种基于TiO2的创新复合吸附剂,用于白葡萄酒蛋白质稳定.
- 评估这种方法对蛋白质和氧化稳定性的影响.
- 为了确定连续流稳定过程的最佳参数.
主要方法:
- 采用了一种原型装置,在惰性玻璃珠上使用基于TiO2的复合吸附剂.
- 该过程在持续流下运行,具有优化的参数 (60分钟持续时间,1.5L/h流量).
- 量化了蛋白质的减少,并使用热试验和氧化标志物评估了葡萄酒的稳定性.
主要成果:
- 总蛋白质的平均减少率达到了32.5%.
- TiO2吸附剂在10-60kDa范围内选择性地去除了与病变发生相关的蛋白质 (PRPs).
- 这种处理有效地保护了葡萄酒免受氧化,并在压力条件下延迟了色的开始.
- 污染物释放 () 被测试,发现是可以忽略不计的.
结论:
- 基于TiO2的复合吸附剂为白葡萄酒蛋白质稳定提供了一种有效和选择性的方法.
- 这种创新方法提高了蛋白质和氧化稳定性,改善了保质期.
- 连续流系统是高效的,并保持葡萄酒的质量,而不会引入有害污染物.
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