Carbon‐13 NMR spectroscopic analysis of 24‐methyl‐Δ<sup>5,22</sup>‐sterols in rape and mustard seed oils
Tarô MatsumotoCollege of Science and Technology Nihon University 1‐8 Kanda Surugadai, Chiyoda‐ku 101 Tokyo JapanNaoto ShimizuCollege of Science and Technology Nihon University 1‐8 Kanda Surugadai, Chiyoda‐ku 101 Tokyo JapanToshihiro ItohCollege of Science and Technology Nihon University 1‐8 Kanda Surugadai, Chiyoda‐ku 101 Tokyo JapanTakashi IidaCollege of Engineering Nihon University Koriyama 963 Fukushimaken JapanA. NishiokaOil and Fat Research Laboratories Ajinomoto Co. Inc. Tsurumiku 230 Yokohama Japan
1982en
ABI
Аннотация
Abstract 24‐Methylcholesta‐5, E ‐22‐dien‐3β‐ol (C 28 Δ 5,22 ‐sterol) was separated from the unsaponifiable matters of the following eight seed oils of Brassica species: Brassica campestris (candle I and II and torch), B. napus (tower and midas), B. juncea (brown and oriental mustards), and B. alba (yellow mustard). The configuration at C‐24 methyl group of the respective sterols was evaluated by 13 C NMR spectroscopy. All the C 28 Δ 5,22 ‐sterols in the Brassica seed oils were found to contain the C‐24 epimer of brassicasterol, trans ‐22‐dehydrocampesterol, in the range of ca. 10–30%.
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 4Использованных источников: 0