生椎茸中のプレビタミンD_2およびビタミンD_2の同定

Research Japanese OPEN
高村, 一知 ; 星野, 浩子 ; 叶多, 謙蔵 ; タカムラ, カズノリ ; ホシノ, ヒロコ ; カノウタ, ケンゾウ ; KAZUNORI, TAKAMURA ; HIROKO, HOSHINO ; KENZO, KANOHTA (1993)
  • Journal: 聖徳栄養短期大学紀要 (vol: 24, pp: 23-26)
  • Subject: pre-vitamin D_2 | pre-ergocalciferol | vitamin D_2 | ergocalciferol | raw shiitake mushroom | liquid chromatography-mass spectrometry | identification

Pre-vitamin D_2(pre-D_2)and vitamin D_2(D_2)in raw shiitake mushroom were identified by liquid chromatography-mass spectrometry (LC-MS) with modified plasmaspray. 1. Pre-D_2 and D_2 in raw shiitake mushroom were separated by LC. 2. Pre-D_2 was confirmed parent ion(m/z 397 [M+H]^+)to scan number 259 of total ion chromatogram. 3. D_2 was cofirmed parent ion(m/z 397 [M+H]^+) to scan number 296 of total ion chromatogram. 4. We have succeeded in obtaining mass spectra of pre-D_2 and D_2 that does not suffer from thermal ring closure.
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