Biosensor is an instrument which is sensitive to biological material and converts its concentration into electrical signals.Organisms such as enzymes, antibodies, tissues, cells and so on can selectively identify spec...Biosensor is an instrument which is sensitive to biological material and converts its concentration into electrical signals.Organisms such as enzymes, antibodies, tissues, cells and so on can selectively identify specific substances. Thesemolecular recognition functions can be combined with the target, such as the binding of antibodies and antigens, and thebinding of enzymes to the substrate through the recognition process. Biosensor has the advantages of high specificity,high sensitivity, fast reaction speed, low cost and easy operation. It has wide application prospect in food, pharmacy,chemical industry, clinical examination, biomedicine, environmental monitoring and so on, especially as a newtechnology means, in the field of modern herbal medicine research influence. Studies have demonstrated that thebiosensing technology has been applied to, traditional Chinese medicine （TCM） targets, isolation and purification ofTCM, the mechanism of TCM, quality control of TCM, the active ingredients detection of TCM and other basicresearches. Biosensor technology has made an important contribution to the research of modern herbal medicine, and hasbecome a Hot-spot in future research.展开更多
Based on literature reviews and analysis of research reports on Pinellia ternata found locally and abroad in recent years,this article summarizes and arranges them.The research on Pinellia ternata mainly focuses on it...Based on literature reviews and analysis of research reports on Pinellia ternata found locally and abroad in recent years,this article summarizes and arranges them.The research on Pinellia ternata mainly focuses on its cultivation,tissue culture,and so on.There are only a few research on its active components and its regulation mechanism.The wild resources of Pinellia ternata are gradually decreasing,hence it is urgent to take effective measures to protect these wild resources as well as to establish germplasm resources bank and nursery.In order to meet the needs of the domestic market,it is necessary to investigate the distribution of wild Pinellia ternata resources,explore the best growing environment and conditions,artificially cultivate Pinellia ternata,as well as implement resource industrialization,sustainable development,and utilization.展开更多
目的探讨中药材不同产地鉴别技术的研究现状和发展趋势,为中药材产地研究拓展思路。方法以“中药”“产地”“鉴别”等为关键字,在中国知网、维普网、PubMed、Web of Science等数据库中查询近10年发表的相关研究论文,并以“不同产地”...目的探讨中药材不同产地鉴别技术的研究现状和发展趋势,为中药材产地研究拓展思路。方法以“中药”“产地”“鉴别”等为关键字,在中国知网、维普网、PubMed、Web of Science等数据库中查询近10年发表的相关研究论文,并以“不同产地”和“鉴别技术”为主旨进行文献综述。结果中药材的不同产地鉴别技术包括性状与显微鉴别、理化鉴别、指纹图谱技术、DNA分子标记鉴别、生物效价评价和结合计算机算法的人工智能鉴别技术等多种方法,其中经验鉴别、显微鉴别和一般理化鉴别等传统鉴别方法简便易行,但依赖经验、专属性差;光谱法、指纹图谱、DNA标记技术等方法用于中药材产地鉴别克服了以上缺点,准确可靠、操作简便;结合计算机算法的人工智能鉴别技术更加准确高效,极大地降低了人工和时间成本,将成为未来发展的重要方向。结论中药材的不同产地鉴别存在一定的难度和不确定性,可以结合多种方法进行综合鉴别,发挥每种鉴别方法的优势,以确保结果的准确性。未来,中药材鉴别将更加智能化和自动化,利用人工智能、机器学习等技术可以提高鉴别效率和准确性。展开更多
采用超声辅助乙醇提取山楂核总黄酮,通过单因素实验方法和正交实验方法确定了总黄酮的最优提取工艺条件;与抗坏血酸、芦丁对比,利用羟基自由基(·OH)、1,1-二苯基-2-三硝基苯肼自由基(DPPH·)、Fe3+法测定山楂核总黄酮的抗氧化...采用超声辅助乙醇提取山楂核总黄酮,通过单因素实验方法和正交实验方法确定了总黄酮的最优提取工艺条件;与抗坏血酸、芦丁对比,利用羟基自由基(·OH)、1,1-二苯基-2-三硝基苯肼自由基(DPPH·)、Fe3+法测定山楂核总黄酮的抗氧化活性。结果表明,山楂核总黄酮超声辅助提取的最佳提取工艺为:按料液比为1∶25(每克山楂核加入25 m L提取剂,下同),加入体积分数50%的乙醇,在60℃下用250 W超声辅助提取40 min,山楂核中总黄酮的提取率可达到7.89%。经过纯化的山楂核总黄酮提取物对·OH和DPPH·具有明显的清除力且对Fe3+有较强的还原能力;黄酮纯化物的抗氧化作用随质量浓度增大而增强,其抗氧化能力强于芦丁而弱于抗坏血酸。展开更多
文摘Biosensor is an instrument which is sensitive to biological material and converts its concentration into electrical signals.Organisms such as enzymes, antibodies, tissues, cells and so on can selectively identify specific substances. Thesemolecular recognition functions can be combined with the target, such as the binding of antibodies and antigens, and thebinding of enzymes to the substrate through the recognition process. Biosensor has the advantages of high specificity,high sensitivity, fast reaction speed, low cost and easy operation. It has wide application prospect in food, pharmacy,chemical industry, clinical examination, biomedicine, environmental monitoring and so on, especially as a newtechnology means, in the field of modern herbal medicine research influence. Studies have demonstrated that thebiosensing technology has been applied to, traditional Chinese medicine （TCM） targets, isolation and purification ofTCM, the mechanism of TCM, quality control of TCM, the active ingredients detection of TCM and other basicresearches. Biosensor technology has made an important contribution to the research of modern herbal medicine, and hasbecome a Hot-spot in future research.
基金Supported by Ankang Science and Technology Bureau,Shaanxi Province(2018ak03-ll)National Traditional Chinese Medicine Characteristic Technology Inheritor(t20194828003).
文摘Based on literature reviews and analysis of research reports on Pinellia ternata found locally and abroad in recent years,this article summarizes and arranges them.The research on Pinellia ternata mainly focuses on its cultivation,tissue culture,and so on.There are only a few research on its active components and its regulation mechanism.The wild resources of Pinellia ternata are gradually decreasing,hence it is urgent to take effective measures to protect these wild resources as well as to establish germplasm resources bank and nursery.In order to meet the needs of the domestic market,it is necessary to investigate the distribution of wild Pinellia ternata resources,explore the best growing environment and conditions,artificially cultivate Pinellia ternata,as well as implement resource industrialization,sustainable development,and utilization.
文摘目的探讨中药材不同产地鉴别技术的研究现状和发展趋势,为中药材产地研究拓展思路。方法以“中药”“产地”“鉴别”等为关键字,在中国知网、维普网、PubMed、Web of Science等数据库中查询近10年发表的相关研究论文,并以“不同产地”和“鉴别技术”为主旨进行文献综述。结果中药材的不同产地鉴别技术包括性状与显微鉴别、理化鉴别、指纹图谱技术、DNA分子标记鉴别、生物效价评价和结合计算机算法的人工智能鉴别技术等多种方法,其中经验鉴别、显微鉴别和一般理化鉴别等传统鉴别方法简便易行,但依赖经验、专属性差;光谱法、指纹图谱、DNA标记技术等方法用于中药材产地鉴别克服了以上缺点,准确可靠、操作简便;结合计算机算法的人工智能鉴别技术更加准确高效,极大地降低了人工和时间成本,将成为未来发展的重要方向。结论中药材的不同产地鉴别存在一定的难度和不确定性,可以结合多种方法进行综合鉴别,发挥每种鉴别方法的优势,以确保结果的准确性。未来,中药材鉴别将更加智能化和自动化,利用人工智能、机器学习等技术可以提高鉴别效率和准确性。
文摘采用超声辅助乙醇提取山楂核总黄酮,通过单因素实验方法和正交实验方法确定了总黄酮的最优提取工艺条件;与抗坏血酸、芦丁对比,利用羟基自由基(·OH)、1,1-二苯基-2-三硝基苯肼自由基(DPPH·)、Fe3+法测定山楂核总黄酮的抗氧化活性。结果表明,山楂核总黄酮超声辅助提取的最佳提取工艺为:按料液比为1∶25(每克山楂核加入25 m L提取剂,下同),加入体积分数50%的乙醇,在60℃下用250 W超声辅助提取40 min,山楂核中总黄酮的提取率可达到7.89%。经过纯化的山楂核总黄酮提取物对·OH和DPPH·具有明显的清除力且对Fe3+有较强的还原能力;黄酮纯化物的抗氧化作用随质量浓度增大而增强,其抗氧化能力强于芦丁而弱于抗坏血酸。
