Document Type

Thesis - University Access Only

Award Date

2004

Degree Name

Master of Science (MS)

Department / School

Nutrition, Food Science, and Hospitality

First Advisor

Chunyang Wang

Abstract

Tocopherols and tocotrienols have shown potential health benefits related to heart disease, cancers, diabetes, Alzheimer's disease, and immunity. Com contains significant amounts of tocols, specifically a.- and y-tocopherol and tocotrienol. In this study, we were able to identify and quantify all four isomers in eleven different by-products from the com dry-milling process. The data collected shows that on a dry basis, the thin stillage and beer :fractions contain the highest total concentration of tocols when compared to the other fractions. However, on an as-is basis, the DOGS fraction contains the highest total tocol concentration. It was also determined that the mixed grain fraction contains almost 2.5 times more tocols than the original com fraction, representing the significantly highest amount of tocols in the system. The beer and whole stillage fractions contain approximately 1.4 times the amount of tocols in the com fraction, representing the second highest amounts of tocols in the system. It was also determined that for every 1 mg of tocols in the com fraction, there is approximately 1 mg of tocols in the DDGS fraction. However, the tocol content doubled from the com to the mash and beer fractions, before decreasing to approximately 1 mg in the DDGS fraction.

Library of Congress Subject Headings

Vitamin E.
Corn products industry -- By-products.
Distilling industries -- By-products.

Publisher

South Dakota State University

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Rights Statement

In Copyright