The results showed that the optimal conditions were as follows:countercurrent extraction of 4 levels,pH 9 at 80 ℃,with 1︰30 as the original ratio of material to solvent,and 30 min,20 min,15 min or 10 min as extracting time in respective gradient level.
以水为提取剂对米糠黄酮逆流提取,研究了该工艺中影响黄酮提取率的主要因素,得出了合理的操作参数,即提取温度80℃,提取液pH 9,最初料液比1 g︰30 mL,提取时间逐级为30、20、15和10 min的4级逆流提取,此时黄酮的提取率及原料、溶剂的利用率均最高。
A new method of tea extraction was introduced,and analyzed the process of countercurrent extraction.
介绍了一种茶叶浸提的新方法,并对逆流提取的过程进行了分析。
Objective:There were little lab-scale research on dynamic continuous countercurrent extraction from Traditional Chinese Medicine, so a lab-scale simulated method was put forward.
目的:针对目前极少实验室规模研究中药材多效动态连续逆流提取,提出一种实验室模拟方法,为该种方法的中试化奠定基础。
Discuss on tailored suit′s armhole & suitable wear;
西服袖窿与穿着舒适性探讨
Research on the Method of Grading Armhole;
袖窿部分推档方法的研究
Defining the shape form of the body armhole, by way of the method of experiment, the paper seeks the interrelationship between the material thickness and the easing of the two\|piece sleeve.
本文以最常用的两片袖为研究对象,在确定衣身袖窿形状的情况下,通过实验的方法,寻找面料厚度与袖吃势量之间的相互关系。
Application of Multi-stage Countercurrent Extraction Technology in Traditional Chinese Medicine;
罐组逆流提取技术在中药领域中的应用研究
Study on Technology and Equipment of Ultrasonic-Microwave Synergizing Dynamic Countercurrent Extraction
超声—微波协同逆流提取的工艺及设备研究
Research on technological process of two-pot countercurrent extraction of hydroxysafflor yellow A
羟基红花黄色素A双罐组式逆流提取工艺研究
Process of three-effect dynamic countercurrent extraction from Hedyotis diffusa
白花蛇舌草的三效动态逆流提取工艺研究
Study on Processing Technology of Pot Groups Dynamic Refluence in Extracting Polysaccharide from Cordyceps militaris (Fr) Link
罐组式动态逆流提取蛹虫草多糖的工艺研究
Rapid Determination of Hydroxysafflor Yellow A Content in Countercurrent Extracting Process of Carthamus Tinctorius L. by Near Infrared Spectroscopy
近红外光谱快速测定红花逆流提取过程中羟基红花黄色素A的含量
Pursuing for Ideal Continuous Countercurrent Flow Obstruction Rod Extractor
追求理想的连续逆流折流管式提取机
Study on Three-stage Continuous Countercurrent Extraction Technology of Steviol Glycosides
三级逆流法提取甜菊糖甙的工艺研究
Black tea extracts are normally produced by a hot or boiling water extraction process, usually a countercurrent process.
红茶的提取物通常是用热水或沸水通过逆流萃取工艺来制取的。
Study on Countercurrent Extraction and Extraction Kinetics of Pectin from Orange Peel;
连续逆流法提取橙皮果胶及其动力学的研究
Design and analysis of dual-frequency ultrasound dynamic countercurrent extraction apparatus
双频超声动态逆流高效提取装置的设计与分析
New Extraction Technologies and Separation with High-speed Countercurrent Chromatography of the Active Constituents from Licorice;
甘草有效成分的新型提取技术及高速逆流色谱分离方法研究
Preparation of Kaempferol and Isorhamnetin from Ginkgo Leaves by Recycling High-Speed Counter-Current Chromatography
循环高速逆流色谱从银杏叶提取物中制备异鼠李素和山奈酚
Effects of Different Pretreatments on Simulative Counter-current Extraction of Flavonoids from Bamboo
不同预处理对动态逆流模拟实验提取竹叶黄酮的影响
Separation of paclitaxel and cephalomanine from extracts in Taxus media branches and leaves by recycling high-speed counter-current chromatography
循环高速逆流色谱从曼地亚红豆杉枝叶提取物中分离紫杉醇和三尖杉宁碱
Extraction of Human Gait Signatures Based on Inverse Kinematics
基于逆运动学的人体步态特征提取
Studies on the Extraction of Effective Components and Analysis for Sini Powder;
四逆散有效成分提取和成分分析研究
Study of the continuous countercurrent spiral ultrasonic extracting apparatus
连续逆流螺旋超声波浸取设备的研究
