The purpose of the present research was to develop a suitable, simple, precise, accurate,robust, and reproducible RP-HPLC method for a reliable simultaneous quantification of docetaxel(DTX) and curcumin(CCM) in rat pl...The purpose of the present research was to develop a suitable, simple, precise, accurate,robust, and reproducible RP-HPLC method for a reliable simultaneous quantification of docetaxel(DTX) and curcumin(CCM) in rat plasma samples using paclitaxel(PTX) as an internal standard. The samples were assayed by the Agilent 1260 Infinity HPLC instrument using a Capcell Pak C8 column(4.6 mm × 150 mm, 5 μm) under isocratic conditions. The mobile phase consisted of acetonitrile and triple distilled water(40/60, v/v) with a flow rate of 1.0 ml/min. The eluent was monitored at 230 nm for simultaneous measurement of curcumin and docetaxel. The method was validated by determining system suitability, selectivity, sensitivity, linearity, inter-day and intra-day precision, accuracy, robustness, and stability in accordance with the guidelines of the United States Food and Drug Administration(FDA).The developed chromatographic method proved to be simple, precise, accurate, robust and reproducible. Moreover, the samples showed stability at room temperature over a period of 48 h. Thus, this method would be employed for routine simultaneous quantification of docetaxel and curcumin in rat plasma samples.展开更多
姜黄经提取姜黄素后会产生油状副产物,其中富含功能活性成分,在食品药品领域具有广阔的应用前景。该研究分析了姜黄素提取后油状物(oily by-product after curcumin extraction,OBP)中的主要成分及其抗氧化活性,并探究了其主要成分的稳...姜黄经提取姜黄素后会产生油状副产物,其中富含功能活性成分,在食品药品领域具有广阔的应用前景。该研究分析了姜黄素提取后油状物(oily by-product after curcumin extraction,OBP)中的主要成分及其抗氧化活性,并探究了其主要成分的稳定性。成分分析的结果表明,OBP中的姜黄素类化合物总量占28.90%,其中双去甲氧基姜黄素>去甲氧基姜黄素>姜黄素;挥发性成分占23.9%,挥发性特征性成分主要有α-姜黄烯、β-倍半水芹烯、芳姜黄酮、姜黄酮、β-姜黄酮以及大西洋(萜)酮。经贮藏实验发现OBP中的姜黄素类化合物稳定但主要挥发性成分损失最高可达73.44%。稳定性实验表明高温、光照、碱性环境以及氧化性金属离子均会造成姜黄素类化合物的损失,尤其是光照和pH=10时,姜黄素的损失率为57.80%和57.99%。OBP的抗氧化性随浓度的提高均呈递增趋势,能有效清除自由基以及还原铁离子。该研究为OBP在食品药品领域的深度开发利用提供了理论依据。展开更多
基金supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2015R1C1A1A01051698)
文摘The purpose of the present research was to develop a suitable, simple, precise, accurate,robust, and reproducible RP-HPLC method for a reliable simultaneous quantification of docetaxel(DTX) and curcumin(CCM) in rat plasma samples using paclitaxel(PTX) as an internal standard. The samples were assayed by the Agilent 1260 Infinity HPLC instrument using a Capcell Pak C8 column(4.6 mm × 150 mm, 5 μm) under isocratic conditions. The mobile phase consisted of acetonitrile and triple distilled water(40/60, v/v) with a flow rate of 1.0 ml/min. The eluent was monitored at 230 nm for simultaneous measurement of curcumin and docetaxel. The method was validated by determining system suitability, selectivity, sensitivity, linearity, inter-day and intra-day precision, accuracy, robustness, and stability in accordance with the guidelines of the United States Food and Drug Administration(FDA).The developed chromatographic method proved to be simple, precise, accurate, robust and reproducible. Moreover, the samples showed stability at room temperature over a period of 48 h. Thus, this method would be employed for routine simultaneous quantification of docetaxel and curcumin in rat plasma samples.
文摘姜黄经提取姜黄素后会产生油状副产物,其中富含功能活性成分,在食品药品领域具有广阔的应用前景。该研究分析了姜黄素提取后油状物(oily by-product after curcumin extraction,OBP)中的主要成分及其抗氧化活性,并探究了其主要成分的稳定性。成分分析的结果表明,OBP中的姜黄素类化合物总量占28.90%,其中双去甲氧基姜黄素>去甲氧基姜黄素>姜黄素;挥发性成分占23.9%,挥发性特征性成分主要有α-姜黄烯、β-倍半水芹烯、芳姜黄酮、姜黄酮、β-姜黄酮以及大西洋(萜)酮。经贮藏实验发现OBP中的姜黄素类化合物稳定但主要挥发性成分损失最高可达73.44%。稳定性实验表明高温、光照、碱性环境以及氧化性金属离子均会造成姜黄素类化合物的损失,尤其是光照和pH=10时,姜黄素的损失率为57.80%和57.99%。OBP的抗氧化性随浓度的提高均呈递增趋势,能有效清除自由基以及还原铁离子。该研究为OBP在食品药品领域的深度开发利用提供了理论依据。