以下为句子列表：
英文: Methods Galangin was extracted with ethanol, degreased with ligarine, and extracted with chloroform.
中文: 方法采用乙醇提取，石油醚脱脂，氯仿萃取，上聚酰胺柱得到高良姜素。
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英文: Objective To opitimize the extraction process of galangin from Alpinia officinarum.
中文: 摘要目的优化从中药高良姜中提取高良姜素工艺研究。
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英文: Results Galangin was obtained by on-step column chromatography of polyamide only once.
中文: 结果运用聚酰胺柱层析－次分离，获得有效成分高良姜素。
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