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生物柴油是一种以动植物油脂为原料制备、可替代化石柴油的绿色新能源。然而,以动植物油脂为原料的生物柴油其原料成本占总生产成本的75%左右,并且消耗大量可食用的植物油脂;以餐饮废弃油脂为原料虽然可有效降低生产成本,但原料来源有限,难以满足大规模生产的需要,且产品的质量难以保证。微藻是一类单细胞藻类,其在特定的条件下可大量积累油脂,而且藻油具有与一般植物油脂类似的脂肪酸结构,因此被认为是一种具有巨大潜力的新型生物柴油油脂原料[1]。
Biodiesel is a green new energy source that can be prepared from animal and vegetable fats and oils as an alternative to fossil diesel. However, the raw material cost of bio-diesel based on animal and vegetable oils and fats accounts for about 75% of the total production cost and consumes large amounts of edible vegetable oils and fats. Although waste oil as raw materials can effectively reduce the production cost, the raw material sources are limited, Difficult to meet the needs of mass production, and the quality of the product is difficult to guarantee. Microalgae are a group of unicellular algae that accumulate fat under certain conditions and that algae oil has a fatty acid structure similar to that of vegetable oils in general and is therefore considered as a promising new bio-diesel oil ingredient [1 ].