HPLC测定决明不同组织中大黄酚和橙黄决明素含量
发布时间:2018-03-18 22:37
本文选题:HPLC 切入点:大黄酚 出处:《天然产物研究与开发》2017年11期 论文类型:期刊论文
【摘要】:为了测定决明不同组织中大黄酚和橙黄决明素的含量。分别收集了决明种子、根、茎、花、叶、果荚、子叶、胚轴、愈伤与不定根等组织,利用回流提取法提取大黄酚与橙黄决明素,高效液相色谱法(HPLC)进行含量测定。采用依利特反相色谱柱,以大黄酚和橙黄决明素为指标,以乙腈-0.1%磷酸水为流动相进行梯度洗脱,流速1 m L/min,检测波长为284 nm,柱温30℃。结果表明:大黄素型蒽醌类化合物在决明中的分布具有明显的组织特异性,其中,决明种子、胚轴、不定根、子叶与愈伤组织中含有大黄酚与橙黄决明素,决明根中仅含有大黄酚,其余组织不含有大黄酚与橙黄决明素,其余总蒽醌含量依次为子叶不定根愈伤组织胚轴根花。决明种子成熟过程中,大黄酚的含量呈现"波浪式上升"的趋势,峰值出现在11月下旬;而橙黄决明素的含量呈现"先上升后下降"的趋势,峰值出现在11月中旬。由于大黄酚与橙黄决明素的含量在决明不同成熟时期分别出现峰值,建议采收11月下旬的决明种子以获得大黄酚,采收11月中上旬的决明种子以获得较多的橙黄决明素。
[Abstract]:In order to determine the content of chrysophanol and orange cassia in different tissues of Cassia sinensis, seeds, roots, stems, flowers, leaves, fruit pods, cotyledons, cotyledons, cotyls, callus and adventitious roots were collected. Refluxing extraction method was used to extract chrysophanol and orange cassia. HPLC was used to determine the content of chrysophanol and orange cassia. The HPLC method was used to determine the content of chrysophanol and orange cassin. The gradient elution was carried out by using acetonitrile-0.1% phosphoric acid as mobile phase. The flow rate was 1 mL / min, the detection wavelength was 284 nm, and the column temperature was 30 鈩,
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