Oxidation Stability of Crude Cottonseed Oils

Effect of Maturity and Storage Period of Cottonseed on the Oxidation Stability of Extracted Oils

Abstract

Oxidation stability of extracted oils from cottonseeds of various stages of maturity and storage period was investigated. According to experimental results, it was confirmed that the oxidation stability of the extracted oil from mature cottonseeds was higher than that from immature cottonseeds. After one and two years of storage, the extracted oils from those cottonseeds had the oxidation stability lower than that from immature cottonseeds which were harvested directly. Antioxidative components of crude cottonseed oil and were identified as tocopherols, gossypol, carotenoides and peptide-like substances by TLC.