漂白时间温度对和维生素保留/损失在开心菜和菜中的影响
Beatrice Muthoni Mugo1, Juliana Kiio1, Ann Munyaka1
1Department of Foods Nutrition and Dietetics, School of Health Sciences Kenyatta University Nairobi Kenya.
Food science & nutrition
|August 14, 2024
概括
热水漂白可以降低绿菜和菜等蔬菜中的,对脏病患者至关重要. 最佳的漂白时间和温度是最大限度地减少营养损失的关键,特别是维生素C和.
科学领域:
- 营养科学 营养科学
- 食品科学 食品科学 食品科学
- 公共卫生 营养 公共卫生 营养
背景情况:
- 高血是末期病 (ESKD) 患者的普遍并发症,需要限制饮食.
- 热水漂白是一种减少植物的常见方法,但它也可能导致显著的水溶性和耐热性维生素损失.
- 有限的证据证实了白化在减少肯尼亚普遍消费的蔬菜中的的有效性.
研究的目的:
- 为了确定热水漂白时间和温度对肯尼亚kale和菜的,维生素B1,B3和C水平的影响.
- 建立最佳的漂白参数,最大限度地减少,同时最大限度地减少维生素降解.
主要方法:
- 采用全因数实验设计来研究漂白效应.
- 使用原子吸收光谱法测量含量.
- 维生素B1,B3和C使用高性能液态染色学 (HPLC) 来量化.
- 统计分析包括独立的t测试和差异分析 (ANOVA) 在95%的置信度水平.
主要成果:
- 新鲜的含有102 mg/100g的和102 mg/100g的维生素C;新鲜的菜含有615 mg/100g的和116 mg/100g的维生素C.
- 在100°C下20分钟布朗奇卡尔导致12.9%的保持率和27.6%的维生素C保持率.
- 在100°C下20分钟布兰奇菜,导致40.6%的保持率和12.2%的维生素C保持率.
- 维生素C和最容易受到热和浸的影响;漂白时间比温度的影响更大.
结论:
- 热水漂白显著降低了和菜中的,但也影响了维生素含量.
- 建议采用最佳的漂白条件:在80°C时15.2分钟的开心菜和在84°C时17.7分钟的菜,以平衡的减少和营养的保留.
- 需要进一步的研究来完善特定蔬菜和营养成分的最佳白色化参数.
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