A review on single cell oil production from food waste
Subject Areas : Journal of Food Safety and ProcessingNahayeh Najafi 1 , Payman Rajaei 2
1 - PhD student, Department of Food Science and Industry, Faculty of Agriculture, Varamin Pishva Branch, Islamic Azad University, Varamin, Iran
2 - Assistant Professor, Department of Food Science and Industry, Faculty of Agriculture, Varamin Pishva Branch, Islamic Azad University, Varamin, Iran
Keywords: Biodiesel, microorganisms, Agricultural residues, single cell oil,
Abstract :
SCO single cell oil is a suitable alternative source for oils, because it can be used as a raw material in the production of biofuels and also as a suitable option in the production of essential fatty acids suitable for human nutrition or as a supplement in animal feed. . However, the usability of SCO is limited due to the high price of the raw materials used in it. The fermentation process using inexpensive agricultural and industrial wastes can solve this problem, which are applicable for the production of SCO. The use of these by-products as the main source of carbon in fermentation not only significantly reduces the overall costs of SCO production, but also causes the treatment of produced waste streams, thus reducing the negative effects on the environment. . Because various agricultural and industrial biodegradable by-products can be used in microbial fermentations. The purpose of this review is to classify and compare usable agricultural residues based on their availability. Single-cell oils are lipids from bacteria, fungi, yeasts, microscopic cruciferous algae, and protists. These lipids have different uses depending on their fatty acid composition. SCOs with high saturated fatty acid content are suitable for biodiesel production, while SCOs rich in unsaturated fatty acids are suitable for human and animal nutrition.
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