Department of Food Science, Faculty of Home Economics, Otsuma Women's University.
Milk Lab. Co., Ltd.
J Oleo Sci. 2023;72(3):329-335. doi: 10.5650/jos.ess22342.
Amazakes made from rice and koji mold are rich in nutrients, such as groups of vitamin B, minerals, essential amino acids, and oligosaccharides, and can improve skin moisturization. However, there are few reports on milk amazake, made from milk and koji mold. Therefore, in this double-blind, randomized controlled trial, we investigate the effect of milk amazake on skin function. Healthy women and men (n = 40) were randomly allocated to the milk amazake or placebo group. The test beverage was consumed once daily for 8 weeks. Skin elasticity, hydration, and transepidermal water loss (TEWL) were measured at baseline and at weeks 4 and 8, and all subjects completed the trial. Skin elasticity (R2 and R5) at 8 weeks was significantly increased in the milk amazake group compared with baseline. In addition, changes in R5 in the milk amazake group were significantly higher than those in the placebo group. Conversely, TEWL, an evaluation item of skin moisturizing function at 8 weeks, was significantly decreased in the active group compared with baseline. In conclusion, milk amazake may be useful as a functional food for improving skin function.
米曲制成的甘酒富含维生素 B 群、矿物质、必需氨基酸和低聚糖等营养成分，具有保湿肌肤的功效。然而，用牛奶和曲霉菌制成的牛奶甘酒的相关报告较少。因此，在这项双盲、随机对照试验中，我们调查了牛奶甘酒对皮肤功能的影响。将健康的女性和男性（n = 40）随机分配到牛奶甘酒组或安慰剂组。试验饮料每日饮用 1 次，持续 8 周。在基线和第 4 周、第 8 周测量皮肤弹性、水分和经皮水分流失（TEWL），所有受试者均完成了试验。与基线相比，第 8 周时牛奶甘酒组的皮肤弹性（R2 和 R5）显著增加。此外，与安慰剂组相比，牛奶甘酒组的 R5 变化显著更高。相反，第 8 周时作为皮肤保湿功能评价项目的 TEWL 在活性组中与基线相比显著降低。总之，牛奶甘酒可能有助于改善皮肤功能，作为一种功能性食品。
