Antioxidative Compounds Isolated from Kokuto, Non-centrifugal Cane Sugar

Abstract

Isoleucine (Ile) is a precursor for the biosynthesis of anteiso-fatty acids in rat skin, and among the four possible stereoisomers of lie, l-Ile, and l-allo-Ile were selectively used for biosynthesis of anteiso-fatty acids. This study examined the optical rotation of anteiso-fatty acid derived from dl-Ile to ascertain its stereo-configuration. Specific rotation of anteiso-fatty acid derived from dl-Ile favorably compared with that derived from l-Ile, suggesting the selective biosynthesis of the (S)-enantiomer of anteiso-fatty acid in rat skin.