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家庭食品生产者使用低成本设备来确定水活动
Janice Cheng1, Morrine Omolo1, Cecia Flores-Sanchez1
1Department of Food Science and Nutrition, University of Minnesota, St. Paul, Minnesota, USA.
Journal of food science
|August 3, 2025
概括
低成本的设备可以帮助小型食品生产商测试水活动 (aw) 的安全性. 虽然不完美,但七个测试设备中的四个为小屋食品企业提供可靠的定向测试.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 仪器化 仪器化 仪器化
背景情况:
- 水活动 (aw) 对食品安全和质量至关重要,具有法律限制 (≤0.85).
- 小规模的食品生产商和小屋工业需要负担得起的,准确的水活动测量工具.
- 现有的高成本设备对需要遵守法规的小企业构成了障碍.
研究的目的:
- 评估低成本水活动测量设备的准确性和可重复性.
- 为了确定适合小规模食品生产商和小屋食品工业负担得起的设备.
- 根据关键标准对设备性能进行评估,包括稳定性,可重复性,平衡时间和准确性.
主要方法:
- 测试了七种类型的低成本水活动设备 (<100美元~2000美元).
- 在一系列水活动 (0.110.94) 中,使用和盐溶液来评估性能.
- 设备的强度,可重复性,平衡时间和准确性根据ISO 18787标准进行了评估.
主要成果:
- 开发了线性回归模型来纠正设备读数.
- 七种低成本设备类型中的四种显示出足够的准确性用于定向测试.
- 没有设备严格满足所有性能标准,但有些设备为特定应用提供了可接受的结果.
结论:
- 四个低成本的水活动装置适用于小屋食品生产商的定向测试.
- 这些设备可以帮助确保食品在实验室确认之前满足安全要求.
- 对于使用这些负担得起的测量工具的小规模生产商,建议进行进一步的验证.
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