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Filtering by: Committee Member Peachey, Ronald E. Advisor Anglemier, Allen F.

The effect of erythorbic acid on the determination of ascorbic acid levels in selected foods by high performance liquid chromatography and spectrophotometry

Creator:

Tuan, Shenhsiu

Abstract:

A high performance liquid chromatography (HPLC) procedure using a LiChrosorb-NH₂ column and a eluant buffer of 75:25 (v/v) of acetonitrile:0.05 M KH₂P0₄, pH 5.95, was developed for the successful separation and determination of ascorbic and erythorbic acids in selected food samples. Application of the method, which is sensitive, rapid and...

Resource Type:

Masters Thesis

Full Text:

graduate committee: Dr. Ronald E. Wrolstad, Dr. Donald L. MacDonald, Dr. Ellen K. Pikitch. I extened my
The stability of ascorbic acid in bottled cranberry-based beverages under home-use conditions

Creator:

Wong, Geoffrey K.

Abstract:

Commercially bottled, vitamin C-fortified, cranberry juice cocktail and cranberry-apple (cranapple) juice drinks were stored at 5°C under simulated home-use conditions. Ascorbic acid (AA) and dehydroascorbic acid (DHA) levels were evaluated over a period of seven days by high performance liquid chromatography (HPLC). Total vitamin C content was also determined by...

Resource Type:

Masters Thesis

Full Text:

. Ronald E. Wrolstad, Dr. Wilbert Gamble, and Dr. Carolyn A. Raab. I extend my gratitude to Dr. Richard