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Extraction of Fat and Fatty Acid Composition from Slaughterhouse Waste by Evaluating Conventional Analytical Methods

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American Journal of Analytical Chemistry 2021年第5期12卷 202-225页

作者： ariba khan Farah Naz Talpur Muhammad Iqbal Bhanger Syed Ghulam Musharraf Hassan Imran Afridi National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan Hussain Ebrahim Jamal Research Institute of Chemistry International Centre for Chemical and Biological Sciences University of Karachi Karachi Pakistan

To attain maximum recovery of useful compounds from slaughterhouse waste (Suet, Tongue, Pancreas) of selected ruminant (cow, goat, lamb, and bull), the fat extraction efficiency of popular methods was compared along with fatty acid (FAs) composition. Four selected methods including Soxhlet (SOX), acid hydrolysis, Bligh & dyer (B&D), and Folch (FOL) were assessed. After methylation, extracted lipids were analyzed by Gas chromatography for FA composition. Data indicated that all selected methods were significantly (p < 0.05) different from each other, particularly higher differences were noticed for low lipid-containing products (Tongue, Pancreas) as well as their respective FA Composition. Based on Analysis of Variance and Principal component analysis, the effective method for lipid and FA Composition analysis was the FOL method. The Soxhlet method was only effective for samples with high-fat content i.e., suet, while the B&D method gave comparatively low lipid content in analyzed samples. Hence based on the results, excellent fat and fatty acid extraction was achieved with the FOL method.

关键词： Fatty Acid Slaughterhouse Waste Animal by-Products Extraction Methods Lipid Analysis Gas Chromatography

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