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植物的油类与脂肪,一般是以甘油三酸酯(即甘油与各种脂肪酸的酯)为主要组成成分,在一定条件下参与代谢过程而贮藏于细胞内部的物质.油脂虽存在于植物的各个部分,包括:根、茎、叶、花、果实、种子.但一般植物的营养部分含量是很少的,大部分油脂存在于植物的果实或种子中.除大量的甘油三酸酯,植物种子的脂肪部分也含有少量,却在生理上是十分重要的拟脂、如磷脂及植物甾醇.
Plant oils and fats, generally triglycerides (ie, glycerol and various fatty acid esters) as the main component, under certain conditions involved in metabolic processes and stored inside the cell material. Although the presence of fat in the plant The various parts, including: roots, stems, leaves, flowers, fruits, seeds, but the general part of the vegetative part of the content is very small, most of the oil in the plant’s fruits or seeds.In addition to large amounts of triglycerides, plants The fat part of the seed also contains small but physiologically important fats, such as phospholipids and phytosterols.