热辐射增强了新鲜挤出的番茄汁的生物活性,抗氧化剂和风味属性
Limei Li1, Hang Su1, Lingling Pang2
1Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, College of Mechanical Engineering, State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
Ultrasonics sonochemistry
|March 6, 2025
概括
热辐射 (TS) 为番茄汁提供了一种新的灭菌方法,可以提高微生物安全性,营养价值和感觉质量,而不会影响基本特性. 最佳条件增强了颜色,稳定性和生物活性化合物.
科学领域:
- 食品科学 食品科学 食品科学
- 食品加工技术 食品加工技术
- 微生物学 微生物学
背景情况:
- 传统的果汁灭菌方法往往会降低天然的味道,生物活性成分和营养价值.
- 开发有效的灭菌技术,以保持果汁质量仍然是一个重大挑战.
研究的目的:
- 探讨热声化 (TS) 的应用,作为新鲜的西红汁的灭菌方法.
- 评估TS对微生物无活化的影响,番茄汁的基本特性,营养含量和感官质量.
主要方法:
- 在各种温度 (50,60,70°C) 和时间 (5,10,15分钟) 上进行了热音处理 (TS).
- 在85°C进行10分钟的热巴氏杀菌 (TP) 被用作对照.
- 分析了微生物无活化,基本性质 (pH,TSS,TA),颜色,悬浮稳定性,柳科,甲酸,黄,总,抗氧化能力,感觉质量和挥发性物质.
主要成果:
- 无论是TS还是TP都有效地使番茄汁中的微生物失活.
- TS治疗没有显著改变基本特性 (pH,TSS,TA).
- 最佳的TS条件 (60°C,15分钟) 显著增强了颜色保留,悬浮稳定性,柳科, Askorbic 酸,黄和总含量.
- 与巴氏杀菌果汁相比,TS治疗还改善了抗氧化能力,感官质量和挥发性物质.
结论:
- 热化是一种可行的番茄汁灭菌方法,可以确保微生物的安全性,同时提高营养和感官质量.
- 与超声波 (热声波) 结合较低的消毒温度,与传统的热消毒相比,对番茄汁质量产生更好的影响.
- 通过超声波化,TS有效地保留甚至增强番茄汁中的有益化合物.
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