Author

Elaine Mrzlak

Publication Date

1983

Document Type

Dissertation/Thesis

First Advisor

King, Sondra L.

Degree Name

M.S. (Master of Science)

Department

Department of Home Economics

LCSH

Restaurants||Salads||Vegetables||Food--Vitamin content

Abstract

The purpose of this study was to investigate ascorbic acid levels of vegetables served on salad bars, during tire late summer months, in restaurants located in a midwest university town. The scope of this research was to establish exactly how much ascorbic acid is in salad bar vegetables compared to those purchased at a store, and hew both of these values compare to those reported in food composition tables. The effects of time of sampling on tire vitamin C level was also examined. Three vegetables (cauliflower, green pepper, cucumber, onion and/or tomato) were sanpled from seven restaurants during what tire respective managers identified as "peak" and "lag" times of patronage, and then again one week later. The samples were analyzed for L-as corbie acid by the spectrophotcmetric procedure of Baja and Gurdeep (26). The ascorbic acid levels of the salad bar vegetables are representative of values reported in food ccnpositicn tables, as well as those determined for produce store vegetables. The results of the ranked correlation coefficient and Paired Sample t-tests were inconsistent. This can be accounted for by agricultural conditions, handling and storage, transportation and marketing conditions. The chi-square tests indicate an independence of time or week of sampling as affecting the ascorbic acid content of salad bar vegetables. These findings support tire lack of significant differences found between times of sampling.

Comments

Bibliography: pages 53-57

Extent

vii, 57 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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