Title

Natural Antioxidants From Industrial Rosins

Date of Award

1994

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Chemistry and Biochemistry

First Advisor

Kenneth McMurtrey

Advisor Department

Chemistry and Biochemistry

Abstract

Some wood rosins contain substances, called antioxidants, which protect the rosin from oxidation. Two rosins, Chinese gum rosin and Hercules' #3 rosin, were investigated for the presence of such substances. An antioxidant in Chinese wood rosin, ferulic acid, was quantitated in the rosin by high performance liquid chromatography (HPLC). Two components of #3 rosin were isolated and identified. Antioxidant assays were performed to determine the relative potencies of these compounds. One rosin component, 3-hydroxy-5-methoxystilbene, was found to be relatively inactive as an antioxidant. The other rosin component, kaempferol, was shown to be a potent antioxidant.