Components of Non-Volatile Acidic Fraction of Raw Corn and Volatile Phenolic Fraction of Corn Silage (Group 2)

Abstract

The main components in non-volatile acidic fraction of raw corn (1979. 10. 17) were analyzed by GLC, IR and MS. p-coumaric and ferulic acids were identified. In the last growing period, the C₃-side chain of hydrocinnamic acid was probably dehydrogenated.
On the other hand, components in volatile phenolic fraction of corn silage (1980. 4. 7) were found to be identical with guaiacol, 4-ethylphenol, 4-methylguaiacol, 4-ethylguaiacol, 4-vinylphenol, 4-vinylguaiacol and eugenol. Two vinylphenols wer thought to be produced from p-coumaric and ferulic acids by thermal decarboxylation during steam distillation.