Yield and Chemical Characterization of Congolese Mansa (Solanum americanum Miller) Oil Extracted from Plant by Solvents and Enzymes

摘要

New sources of edible oils extracted from new agricultural are continually researched. Mansa, Solanum americanum Miller, a typical culture widely produced in some african countries as Congo would be able to attaint this purposes. Mansa seeds contains up to 35% w/w of oil extracted by solvents, 2.7% in roots and 1.3% in leaves. The major fatty acid is linoleic acid (66.5%) followed by oleic acid (14.6%) and palmitic acid (12.6%). The minor fatty acids are DHA and EPA (0.17 and 0.23%, respectively). The omega 6/3 ratio ( 6/3) is lower than 5. Enzymatic extractions by pectinase yield 18% w/w of oil. Besides this lower oil extraction compared to solvent extraction, the enzymatic extraction would be interesting as a way to maintain the minors fractions contents of great functional activities since these minors? fractions are generally susceptible of heat oxidation.