期刊论文

Study on the effect of different medium solutions on the stability of Vitamin C

中文

日用化学工业

1001-1803

2018

48

8

444-449

10.13218/j.cnki.csdc.2018.08.005

湖南省科技重大专项“速生人工林绿色产业链循环增效关键技术创新与应用-木本新能源与化学品高效共转化”（2017NK1013）；

本校为第一机构

利用紫外分光光度法研究了无机盐、羧甲基纤维素钠、β-环糊精和聚乙二醇等介质溶液中维生素C的稳定性,并探索了上述介质溶液延缓维生素C被氧化的作用机理。结果表明,氯化镁、氯化钾、氯化钠、羧甲基纤维素钠均能较显著地提高维生素C的稳定性,而羧甲基纤维素钠对人体安全、使用量很少且效果显著,可广泛应用在化妆品、食品、医药等领域用以保护维生素C的稳定性。聚乙二醇、β-环糊精与维生素C的混合溶液中起始溶氧量与空白维生素C溶液相近且随时间延长下降很明显,而氯化钠、羧甲基纤维素钠和维生素C的混合溶液中起始溶氧量则远低于空白维生素C溶液并随时间延长下降很慢,这些现象与上述介质对维生...

The stability of Vitamin C in different medium solutions such as inorganic salts,sodium carboxymethyl cellulose,β-cyclodextrin and polyethylene glycol was studied by ultraviolet spectrophotometry,and the mechanism of the above mediums retarded the oxidation of Vitamin C was also explored. The results show that magnesium chloride,potassium chloride,sodium chloride and sodium carboxymethyl cellulose can significantly improve the stability of Vitamin C. While the sodium carboxymethyl cellulose is safe,less dosage and has significant effect to pro...