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  • Title: Variation of triacylglycerol profiles in unfermented and dried fermented cocoa beans of different origins.
    Author: Sirbu D, Grimbs A, Corno M, Ullrich MS, Kuhnert N.
    Journal: Food Res Int; 2018 Sep; 111():361-370. PubMed ID: 30007697.
    Abstract:
    Fermentation and drying are the two crucial processing steps required to produce cocoa beans with desired properties, especially taste and flavor. To understand their impact on the lipid profile of cocoa, the lipid composition of unfermented raw and fermented dried beans from six different origins was investigated using high-performance liquid chromatography-mass spectrometry methods. While the comparison of triacylglycerol profiles across the different origins showed only small variations in individual compound concentrations, the comparison along the fermentation status showed major differences regarding the occurrence of polar lipids. These compounds may serve as biomarkers for the fermentation status of the beans and a simple analytical method suitable for field trials is proposed. Finally, a hypothesis identifying key unsaturated triacylglycerols contributing to the hardness and softness of cocoa butter is presented.
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