title: The content and distribution of steryl ferulates in wheat produced in Japan.
abstract: Oryzanol contained in rice bran is a complex mixture of steryl ferulates (SFs) with many identified health benefits. Recently, SF has been shown to exist in other cereals such as wheat, rye, and corn. In this study, SFs in several wheats produced in Japan were analyzed. For instance, SF content of whole wheat grain, Yumekaori (Japan) was 15.2 ± 1.4 mg-oryzanol-equivalent/100 g grain, while that of the imported one, 1CW (Canada) was 11.4 ± 1.3 mg-oryzanol-equivalent/100 g grain. The main SF components in the examined wheats were campesteryl ferulate, campestanyl ferulate, and sitostanyl ferulate. SF distribution in whole wheat grain was investigated using 14 fractions produced by a conventional test milling machine. SF was intensively accumulated in the four bran fractions (24 - 95 mg-oryzanol-equivalent/100 g bran fraction). These results suggest that the wheat bran would be an important source of SF.
authors.affiliation: a National Agriculture and Food Research Organization , Food Research Institute , Tsukuba , Japan.
authors.forename: Wakako
authors.initials: W
authors.lastname: Tsuzuki
authors.affiliation: b Chiba Flour Milling Co., Ltd. , Chiba , Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Mogushi
authors.affiliation: c Yokoyama Flour Milling Co., Ltd. , Sapporo , Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Kawahara
authors.affiliation: a National Agriculture and Food Research Organization , Food Research Institute , Tsukuba , Japan.
authors.forename: Eiichi
authors.initials: E
authors.lastname: Kotake-Nara
authors.affiliation: a National Agriculture and Food Research Organization , Food Research Institute , Tsukuba , Japan.
authors.forename: Shiro
authors.initials: S
authors.lastname: Komba
authors.affiliation: a National Agriculture and Food Research Organization , Food Research Institute , Tsukuba , Japan.
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Kanai
authors.affiliation: d Takachiho Seiki Co. Ltd. , Hachioji , Japan.
authors.forename: Sumiyo
authors.initials: S
authors.lastname: Yamada
authors.affiliation: a National Agriculture and Food Research Organization , Food Research Institute , Tsukuba , Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Horigane
mesh_terms: D003373:Coumaric Acids / Q000032:analysis / Q000378:metabolism*; D004043:Dietary Fiber / Q000032:analysis; D005504:Food Analysis; D007564:Japan; D010666:Phenylpropionates / Q000032:analysis / Q000378:metabolism*; D012639:Seeds / Q000737:chemistry / Q000378:metabolism; D014908:Triticum / Q000737:chemistry* / Q000378:metabolism
chemical_list: D003373:Coumaric Acids; D004043:Dietary Fiber; D010666:Phenylpropionates; C584530:campesteryl ferulate; C013172:gamma-oryzanol
keywords: Japanese wheat; oryzanol; steryl ferulate; wheat bran