Physicochemical properties and thermal behaviour of African wild mango (Irvingia gabonensis) seed fat. Issue 2 (December 2015)

• Record Type: Journal Article
• Authors: Yamoneka, J.; Malumba, P.; Blecker, C.; Gindo, M.; Richard, G.; Fauconnier, M.-L.; Lognay, G.; Danthine, S.
• Is Part Of: Lebensmittel-Wissenschaft + Technologie =. Volume 64:Issue 2(2015:Dec.)
• Page Start: 989
• Page End: 996
• Publication Date: 2015-12
• Subjects: Food industry and trade -- Periodicals; Food -- Composition -- Periodicals; Microbiology -- Periodicals; Nutrition -- Periodicals; 664.005
• DOI: 10.1016/j.lwt.2015.06.035
• Languages: English
• ISSNs: 0023-6438

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">African wild mango (<italic>Irvingia gabonensis</italic>) is now recognized for its numerous food and medicinal uses. This plant produces seeds rich in fat, which is traditionally used as a soup thickener. In the present study, the fat from <italic>Irvingia gabonensis</italic> seeds was solvent extracted and characterized. Besides a chemical characterization (fatty acid (FA) and triacylglycerol (TG) profiles), the melting and crystallization behaviour of the extracted fat was studied by complementary techniques: pNMR, DSC and X-ray diffraction in order to get basic information regarding its physical properties and more particularly, about its polymorphism.</p> <p id="abspara0015">The seeds from <italic>Irvingia gabonensis</italic> (IG) represent an important source of lipids (69–75 g/100 g), rich in myristic (49.8%) and lauric acid (37%). Due to its FA composition, this fat can be classified among "lauric fats". The melting profiles of <italic>IG</italic> fat indicates that a high amount of fat remains solid at temperatures up to 30 °C; the complete melting was detected at around 40 °C. The most stable polymorph of this fat is the β′₁-form. Moreover, IG fat presents a good oxidative stability due to its low content in unsaturated fatty acid.</p> </sec> </abstract>