欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
目的优选榅桲子中总黄酮的最佳提取工艺条件。方法以芦丁为对照品,用分光光度法在506 nm波长处测定榅桲子总黄酮含量,优选总黄酮的提取工艺。结果测得样品中总黄酮含量为13.60 mg.g-1,最佳提取工艺：乙醇浓度为75%,料液比1：10（倍）、回流时间2.5 h,回流温度60℃,提取3次。结论选用芦丁为对照品,用紫外分光光度法测定榅桲子总黄酮含量准确度较高,方法简便,切实可行。
英文摘要：
Objective To extract and determine total flavonoids from Cydonia Oblonga Seeds and select the optimal extraction technology. Methods With rutin being taken as the standard indicator,the total flavonoids were determined by spectrophotometry at 506 nm to optimize the isolation technique. Results The total flavonoids in the samples were detected as 13.60 mg·g-1,and the best extraction process included using 75% ethanol,at a solid liquid ratio of 1：10,refluxing for 2.5 h at 60 ℃ and extracting for 3 times. Conclusion The content determination of total flavonoids from Cydonia Oblonga seeds by ultraviolet spectrophotometry with rutin as control is an accuracy,practical and simple method.
同期刊论文项目
同项目期刊论文
Effects of Gossypium herbaceam Extract Administration on the Learning and Memory Function in the Nat
Antimicrobial and Antitumor Activities of Crude Extracts and Isolated Compounds from Euphorbia humif
Studies on the performance of different coiled column configurations for compact type-I countercurre
SEPARATION AND PURIFICATION OF FLAVONOIDS FROM BLACK CURRANT LEAVES BY HIGH-SPEED COUNTERCURRENT CHR
Optimization of microwave-assisted extraction of phenolics from potato and its downstream waste usin
Bioassay-guided isolation of antioxidants from Astragalus altaicus by combination of chromatographic
Gossypium herbaceam L. Extracts Ameliorate Disequilibrium of IL-1RA/IL-1 beta Ratio to Attenuate Inf
Mild and Efficient Procedure for Michael Addition of N-Heterocycles to alpha,beta-Unsaturated Compou
NOVEL DESIGNS FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: V. COMPARATIVE STUDIES ON PERFORMANCE O
Characterization and identification of chemical compositions in the extract of Artemisia rupestris L
Chemical Composition, Antimicrobial and Antitumor Activities of the Essential Oils and Crude Extract
Simultaneous Structural Identification of Constituents in Active Herbal Extract of Gossypium Herbace
Evaluation on the performance of four different column models mounted on the compact type-I coil pla
Evaluation of the performance of protein separation in figure-8 centrifugal counter-current chromato
Hepatoprotective activities of a sesquiterpene-rich fraction from the aerial part of Cichorium gland
One-step Separation and Purification of Rupestonic Acid and Chrysosptertin B from Artemisia rupestri
Separation of (s)-dehydrovomifoliol from leaves of nitraria sibirica pall. by high-speed counter-cur
Synthesis of Substituted Thieno [2,3-d]pyrimidin-4-ones and Their Testing for Evaluation of Cytotoxi
Vasorelaxant and hypotensive effects of a hydroalcoholic extract from the fruits of Nitraria sibiric
Chemical Components and Antidiabetic Activity of Essential Oils Obtained by Hydrodistillation and Th
Synthesis and bioactivity of 5-(1-aryl-1H-tetrazol-5-ylsulfanylmethyl)-N-xylopyranosyl-1,3,4-oxa(thi
Extraction of an antidiabetic polysaccharide from seeds of Ocimum basilicum and determination of the
Mechanisms of vasorelaxation induced by Ziziphora clinopodioides Lam. (Lamiaceae) extract in rat tho
Assessment of the estrogenic activities of chickpea (Cicer arietinum L) sprout isoflavone extract in
NOVEL DESIGN FOR CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY: II. STUDIES ON NOVEL GEOMETRIES OF ZIGZA
期刊信息
位置：