Hashim N, Pongjata J
Department of Nutrition and Health Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43000 UPM Serdang, Selangor Malaysia.
Malays J Nutr. 2000 Mar;6(1):65-73. Epub 2000 Mar 15.
The objective of this study was to identify the effect of different drying methods on vitamin A activity of formulated weaning food. Weaned foods on vitamin A activity of formulated using treated cowpea flour, locally available rice flour, banana-pumpkin, skim milk powder and sugar in the ratio 35:35:15:15:5. Treated cowpea flour consisted of original cowpea flour, 24 h germinated cowpea flour. Each treated flour was mixed separately with the other ingredients and cooked into a slurry. Each mixture was either oven-dried or freeze-dried to produce a dry flaky mixture. The carotenoid composition of the product was determined by HPLC. Vitamin A activity of oven-dried weaning food was significantly reduced (p<0.05) compared to freeze-dried weaning food. The freeze-dried weaning foods showed a higher retinol equivalent than oven-dried weaning foods for all treatments. The results of the study found that an intake of 100 g of freeze-dried weaning foods enriched with banana-pumpkin and cowpea flour provided an adequate amount of the recommended daily allowance (RDA) of vitamin A for infants.
本研究的目的是确定不同干燥方法对配方断奶食品中维生素A活性的影响。断奶食品中使用经处理的豇豆粉、当地可得的米粉、香蕉 - 南瓜、脱脂奶粉和糖，比例为35:35:15:15:5，以制成配方食品。经处理的豇豆粉包括原始豇豆粉、发芽24小时的豇豆粉。每种经处理的面粉分别与其他成分混合并煮成浆状。每种混合物要么进行烘干要么进行冷冻干燥，以制成干燥的片状混合物。通过高效液相色谱法测定产品的类胡萝卜素组成。与冷冻干燥的断奶食品相比，烘干的断奶食品的维生素A活性显著降低（p<0.05）。在所有处理中，冷冻干燥的断奶食品比烘干的断奶食品显示出更高的视黄醇当量。研究结果发现，摄入100克富含香蕉 - 南瓜和豇豆粉的冷冻干燥断奶食品，可为婴儿提供足够量的维生素A推荐每日摄入量（RDA）。
