麦芽糊精在苯酚-硫酸法测定灵芝多糖中的影响分析

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目的分析用苯酚-硫酸法测定灵芝多糖时,配方中的麦芽糊精是否会干扰结果。方法采用苯酚-硫酸法,用紫外分光光度计在485nm处测定吸光度值。结果灵芝精粉的量逐渐递减,麦芽糊精的量逐渐递增时,所测得的灵芝多糖含量是与灵芝精粉的量呈相应比例改变的。结论苯酚-硫酸法能去除灵芝产品中麦芽糊精辅料的干扰,样品前处理中的沉淀葡聚糖步骤是除去麦芽糊精对样品干扰的关键步骤。
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