Abstract: According to the relevant requirements and methods specified in the Guidelines for Stability Study of Powdered Milk Formulae for Infants and Young Children (on Trial), nutrient decay in infant formula milk powder was investigated in accelerated and long-term tests. The results showed that the macronutrients and fatty acids in infant formula milk powder were relatively stable in both tests, with a decay rate of less than 5%. Vitamins did not significantly decay with a decay rate of less than 10%. The mineral iodine decayed evidently in the accelerated test, with a maximum decay rate of 11.37%. Other minerals did not significantly lose. The optional components were relatively stable in the accelerated and long-term tests, with a decay rate of less than 5%.

Key words: infant formula; accelerated test; long-term test; nutrient decay

摘要： 参照《婴幼儿配方乳粉产品稳定性研究指南（试行）》中的相关要求与方法, 考察婴幼儿配方乳粉在加速试验和长期试验中营养素的衰减情况。结果表明：宏量营养素和脂肪酸在加速试验和长期试验中相对比较稳定, 衰减率在5%以内；维生素在加速试验和长期试验中未出现明显衰减, 衰减率在10%以内；矿物质中碘在加速试验中出现明显衰减, 最高衰减率为11.37%, 其他矿物质未出现明显衰减；可选择成分在加速试验和长期试验中相对比较稳定, 衰减率在5%以内。

关键词: 婴幼儿配方乳粉；加速试验；长期试验；营养素衰减