• 营养卫生 •

### 基于主成分分析与马氏距离结合运用的婴幼儿配方奶粉营养综合评价

1. （1.西北农林科技大学食品科学与工程学院，陕西 杨凌 712100；2.陕西优利士乳业有限公司，陕西 咸阳 712000；3.陕西百跃羊乳集团有限公司，陕西 西安 710000）
• 出版日期:2020-03-15 发布日期:2020-03-23
• 基金资助:
陕西省科技创新能力建设计划项目（2017XY-02）；陕西省企业创新项目（K4030218139）

### Comprehensive Nutrition Evaluation of Infant Formula Based on Principal Component Analysis with Mahalanobis Distance

ZHANG Xue, GE Wupeng, XI Menglu, YANG Li, HE Rui, CUI Xiuxiu

1. (1. College of Food Science and Engineering, Northwest A & F University, Yangling 712100, China;2. Shaanxi Youlishi Dairy Industry Co. Ltd., Xianyang 712000, China; 3. Shaanxi Baiyue Goat Group Co. Ltd., Xi’an 710000, China)
• Online:2020-03-15 Published:2020-03-23

Abstract: This study aimed to scientifically evaluate the main nutritional ingredients of infant formula in order to provide a technical basis for the development and optimization of new infant foods. Gas chromatography, high performance liquid chromatography and ion chromatography were used to detect the three macronutrients proteins, fats and carbohydrates as well as fatty acids, amino acids, lactose and oligosaccharides in infant formula. From the multi-index system, six principal components were extracted and the Mahalanobis distance (MD) was used to measure the nutritional coincidence degree between infant formula and breast milk, and a comprehensive nutritional evaluation was carried out. The results showed that: 1) The compositions and contents of the macronutrients in nine infant formula samples were similar to those in breast milk, but there was a significant difference in some individual components (P < 0.05); 2) Among the tested infant formula samples, goat milk sample D scored highest for Mahalanobis distance (MD = 90.15), followed by goat milk sample F (MD = 86.96), and bovine milk samples H and I showed lower MD scores (82.32 and 82.11, respectively). Accordingly, MD scores for goat milk infant formula were generally higher than those for bovine milk infant formula; 3) MD scores were most affected by fatty acids, and the effect of carbohydrates was the least. The interaction between various nutrients also had an effect. This method can be considered a scientific and reasonable method for the nutritional evaluation of infant formula using multiple nutritional indicators.