以大豆毛油为原料，通过水化脱胶、丙酮去油和乙醇萃取等过程，提取了纯度较高的卵磷脂。
Using soybean oil as raw material, pure soybean lecithin was obtained by degumming with water, defatting with acetone and extracting with ethanol.
从而为通过水蒸气精馏和真空精馏从山苍子油中单离柠檬醛产品提供必要的理论依据。
These results provided the necessary theoretical basis for seperating citral from Litsea citrata oil and designing the distillation column.
香根草油在香根草根的韧皮部生成，并主要通过水蒸馏法提炼出来。
Vetiver oil vetiver root phloem production, and mainly extracted by water distillation.
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