文献类型：期刊文献

英文题名：Purification, identification and properties of a new blue pigment produced from Streptomyces sp. A1013Y

作者：Zhu, Yunping[1]; Shang, Xiaoya[4]; Yang, Li[1]; Zheng, Shenglan[1,3]; Liu, Kaifeng[1,3]; Li, Xiuting[1,2]

第一作者：Zhu, Yunping

通讯作者：Li, Xiuting

机构：[1] Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University [BTBU], Beijing, 100048, China; [2] School of Food and Chemical Engineering, Beijing Technology and Business University, No. 33, Fucheng Road, Beijing, 100048, China; [3] Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University [BTBU], Beijing, 100048, China; [4] Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, Beijing, 100191, China

第一机构：Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University [BTBU], Beijing, 100048, China

年份：2020

卷号：308

外文期刊名：Food Chemistry

收录：EI(收录号：20194307566329);Scopus(收录号：2-s2.0-85073570245)

语种：英文

外文关键词：Purification - Free radicals

摘要：A novel blue pigment was first isolated from Streptomyces sp. A1013Y. The purified component was identified as 4,8,13-trihydroxy-6,11-dione-trihydrogranaticins A (TDTA). Its physical properties were found to be: Molecular weight 462 Da; Color value, E0.1%1cm580 nm = 80; Solubility, it dissolved in organic solvents. In addition, the color of TDTA changed with pH but was found to be relatively stable between 20 and 100 °C, from pH 3 to pH 11, and under UV-light or darkness. TDTA's functional properties was as follows: TDTA showed excellent free radical scavenging properties, IC50 41.04 μg/mL and 13.75 μg/mL using 2, 20-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-n-(3, 2-ethyl-benzothiazole-6-sulfonic acid) ammonium salt (ABTS) respectively. TDTA might be a promising source of natural pigment and bioactive compound used as additive in food industry. ? 2019 Elsevier Ltd