Abstract
Tocol levels in the milling fractions of rice, barley, corn, wheat, and soybeans were analyzed by HPLC with a fluorescence detector. Among all milling fractions tested in this study, rice germ had the highest total tocol levels. In the four milling fractions of barley, except pearling flour, all eight tocol isomers were detected, and they were more uniformly distributed than in any other cereal grains measured in this study. The total tocol and α-tocopherol levels of wheat germ were significantly (P < 0.05) higher than the other wheat milling fractions. A significantly (P< 0.05) higher proportion of γ-tocopherol was obtained from corn germ (71.5%) and endosperm (50.3%) than from corn hulls. Only four tocol isomers (α-, β-, γ-, and δtocopherol) were detected in soybean milling fractions; no tocotrienol isomers were detected. The δ-tocopherol level of soybean endosperm, although minor, was significantly higher than those in milling fractions of other cereal grains in this study.
| Original language | English |
|---|---|
| Pages (from-to) | 585-589 |
| Number of pages | 5 |
| Journal | JAOCS, Journal of the American Oil Chemists' Society |
| Volume | 80 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2003 Jun |
Bibliographical note
Funding Information:We are grateful to the Agricultural R&D Promotion Center of Korea for financial support.
Keywords
- Barley
- Cereal grains
- Corn
- Milling
- Rice
- Soybean
- Tocol
- Tocopherol
- Tocotrienol
- Wheat
ASJC Scopus subject areas
- General Chemical Engineering
- Organic Chemistry