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首页> 美国卫生研究院文献>Foods >Development and Physico-Chemical Characterization of a Shea Butter-Containing Lipid Nutrition Supplement for Sub-Saharan Africa
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Development and Physico-Chemical Characterization of a Shea Butter-Containing Lipid Nutrition Supplement for Sub-Saharan Africa

机译：撒哈拉以南非洲地区含乳木果脂类营养补品的开发和理化特性

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Lipid-based nutrient supplements (LNS) are used to prevent and treat moderate and severe acute malnutrition, a leading cause of mortality in children-under-five. The physical and chemical changes of two new LNS products were evaluated before and after accelerated shelf life testing (ASLT) according to protocols suggested by the U.S. Agency for International Development (USAID) and Doctors without Borders and compared against USAID’s A-20 paste as a control. LNS formulas containing Shea butter from the Shea nut tree (Vitellaria paradoxa), a common fat source in parts of Sub-Saharan Africa, with and without flax-seed oil, as a source of omega-3 fatty acids, were developed. LNS formulas were batched (0.8 kg) in a wet grinder, sealed under nitrogen in three-layer mini-pouches (20 g), and underwent ASLT at 40 ± 2 °C for six months with sampling every eight weeks. At each time point, water activity, moisture, peroxide value, oil separation, vitamin C content, and hardness were evaluated. Results showed comparable stability among all formulas with an increase in Aw (p < 0.05) but no change in vitamin C, oil separation, or peroxide value. Addition of Shea butter improved the LNS’s hardness, which remained stable over time. Modifying fat profile in LNS can improve its texture and essential fatty acid content without affecting its storage stability.
机译：基于脂质的营养补充剂（LNS）用于预防和治疗中度和重度急性营养不良，这是五岁以下儿童死亡的主要原因。根据美国国际开发署（USAID）和Doctors Without Borders建议的方案，在加速保质期测试（ASLT）之前和之后评估了两种新LNS产品的物理和化学变化，并与USAID的A-20糊剂进行了比较。控制。开发了LNS配方，该配方包含来自乳木果树（Vitellaria paradoxa）的乳木果油，该乳木果是撒哈拉以南非洲部分地区的常见脂肪来源，有或没有亚麻籽油，都是omega-3脂肪酸的来源。将LNS配方在湿式研磨机中分批（0.8 kg），在氮气下密封在三层小袋（20 g）中，并在40±2°C下进行ASLT六个月，每八周取样一次。在每个时间点，评估水分活度，水分，过氧化物值，油分离，维生素C含量和硬度。结果表明，所有配方中的稳定性均相当，但Aw有所增加（p <0.05），但维生素C，油分离或过氧化物值没有变化。加入牛油树脂可提高LNS的硬度，该硬度随时间保持稳定。改变LNS中的脂肪分布可以改善其质地和必需脂肪酸含量，而不会影响其储存稳定性。

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