复配维生素营养强化剂中维生素K1的稳定性研究

Study on the stability of Vitamin K1 in vitamin compound nutrition fortifiers

关键词:  维生素K1  特殊医学用途配方食品  光照  加速

Key words:  Vitamin K1  formulated foods for special medical purposes  illumination  accelerated test

摘要:

目的 了解特殊医学用途配方食品原料复配维生素内维生素K1在车间光照和加速试验下含量的变化情况。方法 将复配维生素置于540 lx车间日光灯照射进行光照实验，分别在光照0、5、10、15、20、30、60和120 min后取样检测；将复配维生素置于温度（37±2）℃、相对湿度（75±5）%条件下进行加速实验，分别在第0、1、3个月取样检测。结果复配维生素在车间日光灯照射0～120 min维生素K1的衰减率均小于10%。在温度（37±2）℃、相对湿度（75±5）%条件下加速1、3个月后维生素K1衰减率均为-0.52%。结论 复配维生素中维生素K1在光照2 h、温度（37±2）℃、相对湿度（75±5）%条件下加速3个月内较为稳定。

Abstract:

Objective To understand the changes in the content of Vitamin K1 in the vitamin compound as raw materials of formula foods for special medical purposes under workshop illumination and accelerated testing. Method The vitamin compounds were placed in a 540 lx workshop under fluorescent light for the illumination experiment, and the samples were taken for testing at 0, 5, 10, 15, 20, 30, 60 and 120 min of illumination. The vitamin compounds were placed at a temperature of (37±2)℃ and a relative humidity of (75±5)%, and the samples were taken for accelerated testing at 0, 1, and 3 months, respectively. Result At 0-120 min of continuous illumination in the workshop, the attenuations of vitamin K1 were all less than 10%. At a temperature of (37±2)℃ and a relative humidity of (75±5)%, the attenuations of vitamin K1 were all -0.52%. Conclusion Vitamin K1 in the vitamin compound is relatively stable within 3 months of acceleration under conditions of 2 h of illumination, temperature of (37±2) ℃, and relative humidity of (75±5)%.