目的：探讨大豆磷脂酰胆碱对血管性痴呆大鼠学习记忆能力的作用。

Objection: To investigate the preventive effects of soybean phosphatidylcholine(PC)on spatial learning and memory deficits in rats with vascular dementia(VD).

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提出了制备高磷脂酰胆碱(PC)含量的大豆磷脂的新工艺。

A new separation process was developed for fractionation of soya lecithin with high phosphatidylcholine (PC) content using isopropanol.

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该文研究了在低温条件下，用乙醇作为溶剂，通过冷冻结晶去杂，从粗制大豆磷脂中精制磷脂酰胆碱的方法。

Method was introduced to refine phosphatidylcholine from rude soybean lecithin using alcohol and remove impurity by refrigerating crystal in the condition of low temperature.

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