Streptococcus faecalis 10Clによるリポ酸の定量法について
スポンサーリンク
概要
- 論文の詳細を見る
A Modification of Stokstad's medium for the determination of lipoic acid was carried out, with which growth of Stc. faecalis 10 Cl was more accelerated than with media reported previously. The method was also detailed which permitted the accurate turbidimetric determination of lipoic acid with Stc. faecalis 10 Cl after a 24 hous incubation period, and which had the assay range approximately 0.25 to 5.0 mμg of lipoic acid per ml. Reliability of this assay method was indicated by reproducibility of assay and by recoveries of lipoic acid added to rabbit urine and yeast extract. Growth stimulating activity of the several derivatives and analogues of lipoic acid were investigated. Methyl DL-dihydroliponate and methyl DL-6,8-diacetylthiooctanoate were found to have about 130 and 100 per cent, respec- tively, of the growth stimulating activity of lipoic acid. Smaller activities were also found for methyl DL-6-chloro-8-mercaptooctanoate and methylDL-6-hydroxy-8-mercaptooctanoate such as 16 and 1.2 per cent.
- 日本ビタミン学会の論文
- 1961-06-25
著者
関連論文
- 4.Streptococcus faecalis 10ClおよびStreptococcus faecalis Rによるリポ酸定量法の検討(第4回 リポ酸・オロット酸測定小委員会研究発表要旨)
- Streptococcus faecalis 10Clによるリポ酸の定量法について