[Objectives]To determine the drying process of different functional rhubarbs.[Methods]The contents of tannins,bianthrone,free anthraquinones and combined anthraquinones in medicinal rhubarb were determined by HPLC.The...[Objectives]To determine the drying process of different functional rhubarbs.[Methods]The contents of tannins,bianthrone,free anthraquinones and combined anthraquinones in medicinal rhubarb were determined by HPLC.The results were analyzed by two-way analysis of variance.[Results]Under different drying conditions,the contents of tannins,bianthrone,free anthraquinones and combined anthraquinones in medicinal rhubarb were significantly different.Taking the tannins content as the index,the optimum drying condition of the rhizome is 1 cm thick,dried at 60℃,the root is cut 1 cm thick,and dried at 30℃;the bianthrone content is used as an indicator,the rhizome is optimally dried.The condition is to cut 1 cm thick,dry at 60℃,the root is cut to 5 cm thick,and dried at 40℃;the free anthraquinones content is used as an index,and the optimum drying condition of the rhizome is 3 cm thick and dried at 50℃.The root is cut to a thickness of 3 cm and dried at 30℃.The combine anthraquinones content is used as an indicator.The optimum drying conditions for the rhizome are 5 cm thick,dried at 40℃,and the root is cut to 5 cm thick and dried at 70℃.[Conclusions]Different functional components of rhubarb have different directional processing methods.The drying process can reduce the drying temperature or increase the thickness of the slice,and the directional processing of the diarrhea-type rhubarb can be processed.The drying process can be carried out by increasing the drying temperature or reducing the thickness of the slice directed processing of heat-clearing and purging-fire rhubarb.展开更多
将罗氏沼虾随机分成5组,每组3个平行,每个平行约1 000尾,第1组为对照组,投喂基础日粮,另外4组为试验组,在基础日粮中分别添加w为0.05%、0.10%、0.20%、0.40%大黄蒽醌提取物。饲养8周后,对虾进行连续48 h 35℃高温应激,测定其生长、应激...将罗氏沼虾随机分成5组,每组3个平行,每个平行约1 000尾,第1组为对照组,投喂基础日粮,另外4组为试验组,在基础日粮中分别添加w为0.05%、0.10%、0.20%、0.40%大黄蒽醌提取物。饲养8周后,对虾进行连续48 h 35℃高温应激,测定其生长、应激前后血淋巴葡萄糖、胆固醇、甘油三酯、溶菌酶、一氧化氮(NO)等的变化。结果表明:与对照组相比,添加w=0.10%的大黄蒽醌提取物显著提高了虾的增重率、降低了饵料系数,w=0.40%大黄蒽醌提取物显著增加了血淋巴溶菌酶含量。高温应激后,与对照组相比,添加w为0.1%和0.20%大黄蒽醌提取物仍保持较高血淋巴溶菌酶、一氧化氮浓度。高温应激试验表明:对照组死亡率达60%,添加w为0.10%和0.20%大黄蒽醌提取物小于30%。因此添加w为0.10%和0.20%大黄蒽醌提取物提高了机体抗应激能力,并对高温引起虾的死亡有一定的保护作用,促进了虾的生长。展开更多
目的对药用大黄中蒽醌及非蒽醌类成分进行深入研究。方法药用大黄80%(φ)乙醇溶液提取物经硅胶柱、ODS柱、MCI gel CHP20、SephadexLH-20凝胶柱色谱及HPLC色谱分离,纯化,根据理化性质和波谱数据进行结构鉴定。结果分离得到6个蒽醌类和5...目的对药用大黄中蒽醌及非蒽醌类成分进行深入研究。方法药用大黄80%(φ)乙醇溶液提取物经硅胶柱、ODS柱、MCI gel CHP20、SephadexLH-20凝胶柱色谱及HPLC色谱分离,纯化,根据理化性质和波谱数据进行结构鉴定。结果分离得到6个蒽醌类和5个非蒽醌类成分,经波谱数据解析,分别鉴定为香兰基丙酮(vanillylacetone,1)、大黄素(emodin,2)、芦荟大黄素(aloeemodin,3)、大黄素甲醚-8-O-β-D-葡萄糖苷(physcion-8-O-β-D-glucopyranoside,4)、大黄酚-8-O-β-D-葡萄糖苷(chrysophanol-8-O-β-D-glucopyranoside,5)、1-甲基-8-羟基-9,10-蒽醌-3-O-β-D-(6'-O-桂皮酰基)吡喃葡萄糖苷(1-methyl-8-hydroxyl-9,10-anthraquinone-3-O-β-D-(6'-O-cinnamoyl)glucopyrano-side,6)、芦荟大黄素-3-(羟甲基)-O-β-D-葡萄糖苷(aloe emodin-3-(hydroxymethyl)-O-β-D-glucopy-ranoside,7)、(+)儿茶素(catechin,8)、表儿茶素没食子酸酯(epicatechin-3-O-gallate,9)、儿茶素-3-O-β-D-葡萄糖苷(catechin-3-O-β-D-glucopyranoside,10)、儿茶素-8-β-D-葡萄糖苷(catechin-8-β-D-glucopyranoside,11)。结论化合物1,6,9-11为首次从该植物中分离。展开更多
基金National Natural Science Foundation of China(31570331,31170307)National Key Research and Development Program of China(2017YFC1700702)Project of Beijing University of Chinese Medicine(2019-JYB-XS-087).
文摘[Objectives]To determine the drying process of different functional rhubarbs.[Methods]The contents of tannins,bianthrone,free anthraquinones and combined anthraquinones in medicinal rhubarb were determined by HPLC.The results were analyzed by two-way analysis of variance.[Results]Under different drying conditions,the contents of tannins,bianthrone,free anthraquinones and combined anthraquinones in medicinal rhubarb were significantly different.Taking the tannins content as the index,the optimum drying condition of the rhizome is 1 cm thick,dried at 60℃,the root is cut 1 cm thick,and dried at 30℃;the bianthrone content is used as an indicator,the rhizome is optimally dried.The condition is to cut 1 cm thick,dry at 60℃,the root is cut to 5 cm thick,and dried at 40℃;the free anthraquinones content is used as an index,and the optimum drying condition of the rhizome is 3 cm thick and dried at 50℃.The root is cut to a thickness of 3 cm and dried at 30℃.The combine anthraquinones content is used as an indicator.The optimum drying conditions for the rhizome are 5 cm thick,dried at 40℃,and the root is cut to 5 cm thick and dried at 70℃.[Conclusions]Different functional components of rhubarb have different directional processing methods.The drying process can reduce the drying temperature or increase the thickness of the slice,and the directional processing of the diarrhea-type rhubarb can be processed.The drying process can be carried out by increasing the drying temperature or reducing the thickness of the slice directed processing of heat-clearing and purging-fire rhubarb.
基金农业科技成果转化资金资助项目(2008GB23260402)International Foundation for Science资助项目(IFS(A/4396))中央级公益性科研院所基本科研专项资金资助项目(2007JBFB11)
文摘将罗氏沼虾随机分成5组,每组3个平行,每个平行约1 000尾,第1组为对照组,投喂基础日粮,另外4组为试验组,在基础日粮中分别添加w为0.05%、0.10%、0.20%、0.40%大黄蒽醌提取物。饲养8周后,对虾进行连续48 h 35℃高温应激,测定其生长、应激前后血淋巴葡萄糖、胆固醇、甘油三酯、溶菌酶、一氧化氮(NO)等的变化。结果表明:与对照组相比,添加w=0.10%的大黄蒽醌提取物显著提高了虾的增重率、降低了饵料系数,w=0.40%大黄蒽醌提取物显著增加了血淋巴溶菌酶含量。高温应激后,与对照组相比,添加w为0.1%和0.20%大黄蒽醌提取物仍保持较高血淋巴溶菌酶、一氧化氮浓度。高温应激试验表明:对照组死亡率达60%,添加w为0.10%和0.20%大黄蒽醌提取物小于30%。因此添加w为0.10%和0.20%大黄蒽醌提取物提高了机体抗应激能力,并对高温引起虾的死亡有一定的保护作用,促进了虾的生长。
文摘目的对药用大黄中蒽醌及非蒽醌类成分进行深入研究。方法药用大黄80%(φ)乙醇溶液提取物经硅胶柱、ODS柱、MCI gel CHP20、SephadexLH-20凝胶柱色谱及HPLC色谱分离,纯化,根据理化性质和波谱数据进行结构鉴定。结果分离得到6个蒽醌类和5个非蒽醌类成分,经波谱数据解析,分别鉴定为香兰基丙酮(vanillylacetone,1)、大黄素(emodin,2)、芦荟大黄素(aloeemodin,3)、大黄素甲醚-8-O-β-D-葡萄糖苷(physcion-8-O-β-D-glucopyranoside,4)、大黄酚-8-O-β-D-葡萄糖苷(chrysophanol-8-O-β-D-glucopyranoside,5)、1-甲基-8-羟基-9,10-蒽醌-3-O-β-D-(6'-O-桂皮酰基)吡喃葡萄糖苷(1-methyl-8-hydroxyl-9,10-anthraquinone-3-O-β-D-(6'-O-cinnamoyl)glucopyrano-side,6)、芦荟大黄素-3-(羟甲基)-O-β-D-葡萄糖苷(aloe emodin-3-(hydroxymethyl)-O-β-D-glucopy-ranoside,7)、(+)儿茶素(catechin,8)、表儿茶素没食子酸酯(epicatechin-3-O-gallate,9)、儿茶素-3-O-β-D-葡萄糖苷(catechin-3-O-β-D-glucopyranoside,10)、儿茶素-8-β-D-葡萄糖苷(catechin-8-β-D-glucopyranoside,11)。结论化合物1,6,9-11为首次从该植物中分离。
