异抗坏血酸
异抗坏血酸(英語:)是抗坏血酸(维生素C)的立体异构体。[1]它是由2-酮-D-葡萄糖酸甲酯和甲醇钠反应而成的。它也可以从蔗糖或由青霉菌的菌株合成,这些菌株已被选择用于此功能。[2]它的E编码为E315,在加工食品中广泛用作抗氧化剂。[3]
异抗坏血酸 | |
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IUPAC名 (5R)-5-[(1R)-1,2-Dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-one | |
英文名 | |
别名 | D-Araboascorbic acid, Erythorbate, Isoascorbic acid. |
识别 | |
CAS号 | 89-65-6 |
PubChem | 6981 |
ChemSpider | 16736142 |
SMILES |
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InChI |
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InChIKey | CIWBSHSKHKDKBQ-DUZGATOHBV |
ChEBI | 51438 |
性质 | |
化学式 | C6H8O6 |
摩尔质量 | 176.12 g·mol−1 |
密度 | 0.704 g/cm3 |
熔点 | 164-172 °C(437-445 K)(分解) |
pKa | 2.1 |
危险性 | |
NFPA 704 |
1
1
0
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若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
人们已经进行了临床试验来研究异抗坏血酸的营养价值。一项此类试验调查了异抗坏血酸对年轻女性维生素C代谢的影响,并未发现它对体内维生素C的吸收或清除有影响。[4]后来的一项研究发现,异抗坏血酸是非血红素铁吸收的有效促进剂。[5]
异抗坏血酸用作腌肉和冷冻蔬菜的防腐剂。[6]
参考资料
- Erythorbic acid and its sodium salt (页面存档备份,存于) Dr R. Walker, Professor of Food Science, Department of Biochemistry, University of Surrey, England.
- . [2021-10-15]. (原始内容存档于2020-06-10).
- Current EU approved additives and their E Numbers (页面存档备份,存于), Food Standards Agency
- Sauberlich, HE; Tamura T; Craig CB; Freeberg LE; Liu T. . American Journal of Clinical Nutrition. September 1996, 64 (3): 336–46. PMID 8780343. doi:10.1093/ajcn/64.3.336 .
- Fidler, MC; Davidsson L; Zeder C; Hurrell RF. . American Journal of Clinical Nutrition. January 2004, 79 (1): 99–102. PMID 14684404. doi:10.1093/ajcn/79.1.99 .
- Hui YH. . CRC Press. 2006: 83–32. ISBN 0-8493-9848-7.
- See:
- Maurer, Kurt; Schiedt, Bruno. . Berichte der deutschen chemischen Gesellschaft. August 2, 1933, 66 (8): 1054–1057.
- Maurer, Kurt; Schiedt, Bruno. . Berichte der deutschen chemischen Gesellschaft. July 4, 1934, 67 (7): 1239–1241. doi:10.1002/cber.19340670724.
- See also:
- Ohle, Heinz; Erlbach, Heinz; Carls, Herbert. . Berichte der deutschen chemischen Gesellschaft. February 7, 1934, 67 (2): 324–332. doi:10.1002/cber.19340670235.
- Baird, D. K.; Haworth, W. N.; Herbert, R. W.; Hirst, E. L.; Smith, F.; Stacey, M. . Journal of the Chemical Society. 1934: 63–67. doi:10.1039/JR9340000062.
- Reichstein, T.; Grüssner, A.; Oppenauer, R. . Helvetica Chimica Acta. 1934, 17: 510–520. doi:10.1002/hlca.19340170157.
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