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Vegetative oils are closely associated with our daily life.They are widely used in food,both in cooking and as nutritional supplements,as well as in cosmetics a
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Vegetative oils are closely associated with our daily life.They are widely used in food,both in cooking and as nutritional supplements,as well as in cosmetics and as fuels.Contrary to animal fats,vegetative oils are mixtures of liquid triacylglycerols (TAGs) with a high proportion of unsaturated fatty acids (UFAs).However,in many higher plants,only their fruits and/ or seeds contain a significant amount of oils that are valuable for industrial utilization.Microalgae are single-cell photosynthetic organisms.They contain all the oil-producing machinery present in higher plants and are original oil producers on Earth.Importantly,they can be cultivated on a large scale for produc tion of microalgal oils with rare long-chain polyunsaturated FAs (LC-PUFAs) such as omega-3 FAs and eicosapentaenoic acid (EPA),which have health benefits.The genomes of human and vertebrate animals do not encode enzymes for synthesizing LC-PUFAs,and thus they have to acquire these so-called "essential FAs" via diet.
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