在大豆油的必需脂肪酸成分的气候变化
Michael R Bukowski1, Sarah Goslee2
1Methods and Application of Food Composition Laboratory, Beltsville Human Nutrition Research Center, USDA-ARS, Beltsville, MD, United States.
The American journal of clinical nutrition
|January 4, 2024
概括
日间高温会减少大豆油中必需脂肪酸 - - 烯酸 (LA) 和α-烯酸 (ALA) 的含量. 这种气候引起的变化可能导致许多人群的ALA摄入量不足.
科学领域:
- 农业科学 农业科学
- 营养科学 营养科学
- 环境科学 环境科学
背景情况:
- 豆油是必需脂肪酸 - - 烯酸 (LA) 和α-烯酸 (ALA) 的重要来源.
- 在大豆种子发育期间,白天的高温会降低脱酶活性,降低LA和ALA水平.
- 气候对大豆脂肪酸成分和人类营养的影响尚不清楚.
研究的目的:
- 开发一个大豆必需脂肪酸成分模型.
- 评估温度的地理,年内或年间变化是否影响必需脂肪酸含量.
- 为了确定由气候驱动的大豆油质量变化的营养影响.
主要方法:
- 通过使用来自16项关于大豆脂肪酸成分在高温下 (15°C40°C) 的研究中的233个数据点创建了一个模型.
- 该模型应用于6年的当代农业和气象数据,跨越不同的生长时期.
- 县产量数据被用来为美国最大的大豆生产地区开发区域油脂酸模型.
主要成果:
- 温度上升显著降低了大豆油中的LA和ALA度.
- 观察到必需脂肪酸含量的区域,年间和年内变化 (P < 0.05).
- 来自美国南部的大豆油可能由于高温而不足ALA,影响人类的营养需求.
结论:
- 豆油质量的基于气候的变化可以显著影响必需脂肪酸摄入量.
- 由于大豆成分的气候变化,人群可能无法获得足够的每日α-烯酸 (ALA) 摄入量.
- 需要进一步的研究来解决气候变化对必需脂肪酸来源的营养影响.
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