1.Effects of chemical constituent in roots of Achyranthes Bidentata.
Jin-Gui LI ; Kui ZHU ; Wen-Ying GU ; Zong-Ping LIU
China Journal of Chinese Materia Medica 2008;33(10):1161-1163
The difference of ingredients between the roots from the SP1 plants of Achyranthes Bidentata carried by satellite and the control's were evaluated in this study. The techniques of ultraviolet-visible spectroscopy (UVS), infrared spectroscopy (IR), Xray diffraction (XRD) and SDS-PAGE were used to analyse the chemical constituent in the root of A. bidentata. The results demonstrated that the UVS, IR, XRD and protein fingerprints of the roots from A. bidentata were distinct with special characters. The difference of the IR, XRD and protein fingerprints could be discriminated the satellite plants roots from those of the control, however, there were no difference of the UVS fingerprints between the satellite plants roots and the control. This indicated that the kinds of chemical ingredients were not different between the two groups, but the contents of some chemical ingredients deceased in SP1 plants of A. bidentata carried by satellite.
Achyranthes
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chemistry
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Drugs, Chinese Herbal
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chemistry
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Plant Roots
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chemistry
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Resins, Plant
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chemistry
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Space Flight
2.Studies on separation and purification of Rhizoma Fagopyri Dibotoryis extract by macroporous resin.
Hua-gang SHENG ; Li-qiao ZHU ; Chao ZHANG ; Gui-tao LIN
China Journal of Chinese Materia Medica 2008;33(15):1832-1835
OBJECTIVETo establish a technical process for purification of extract of Rhizoma Fagopyri Dibotoryis.
METHODThe static adsorption capacity and elution ratio of Mixture of proanthocyanidins tannic condensation were used as evaluation to select the best resin in 3 kinds of macroporous resin. The adsorptive characteristics and elution parameters of selected resin were studied.
RESULTD-101 resin had good separation performance and was suited to purify priceid in extract of Rhizoma Fagopyri Dibotoryis.
CONCLUSIONThe process of applying macroporous resin to absorb and purity priceid in extract of Rhizoma Fagopyri Dibotoryis is feasible.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Fagopyrum ; chemistry ; Plants, Medicinal ; chemistry ; Reproducibility of Results ; Resins, Plant ; chemistry
3.Decolorization and purification of total leaves saponins of panax notoginseng with ion exchange resins.
China Journal of Chinese Materia Medica 2008;33(20):2320-2323
The total leaves saponins of panax notoginseng decoloring by adsorption with exchange resins was studied and the decoloring capacity of six anions resins as adsorbent material was evaluated. The decoloring capacity of the selected resins (D296 and Dt) was compared by the dynamic adsorption decolorization experiments. Removel of coloured compounds in rew solution takes place in two serially coupled different ionic exchange columns, one packed column was D72 cation resin, another anion resin. The results showed that macroporous anion exchange resin Dt was the best resin to decolorization of the total leaves saponins of panax notoginseng. The total saponin products with higher purity and quality were obtained. The results of this work shows that the method proposed is convenient, high efficcient and steady one.
Ion Exchange Resins
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chemistry
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Panax notoginseng
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chemistry
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Plant Leaves
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chemistry
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Saponins
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chemistry
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isolation & purification
4.The method and influencing factors of alkalescency protein purification from bitter melon (Momordica charantia) seeds by polyacrylicacid precipitation.
Hai-Hua ZHANG ; Qiao-Mei WANG ; Jia-Shu HU ; Fu-Dan TONG
Chinese Journal of Biotechnology 2007;23(4):735-740
In this study, polyacrylicacid precipitation alkalescence protein from Momordica charantia L. seeds was studied, and the effect of conditions on experiment was also evaluated. Isoelectric precipitation is achieved by adjusting the pH of a protein solution and is based on that a protein's solubility is at minimum at its pI. The sample was titrated to pH 6.0 with citric acid, and 14.62% proteins were precipitated. With hydrochloric acid to pH 4.0, 32.49% proteins were precipitated. With the acetic acid to pH 6.0 and pH 4.0, 26.17% and 38.72% proteins were precipitated, respectively. In the 1 mL Bitter melon seeds extraction(pH 4.0) adjusted by acetic acid, hydrochloric acid and citric acid, the optimum dosage of PAA (1%) precipiting alkalescency protein (pl 8.65-9.30) was 100 microL, 120 microL and 100 microL, respectively. The respective extraction (1mL) was titrated to pH 5.0, pH 4.0, and pH 3.0 by acetic acid. After isoelectric precipitation, the PAA precipitation protein was performed. When concentration of PAA (1%) was 160 microL/mL, the protein decreased in the supernatant was 33.77% at pH 5.0, and 43.56% at pH 3.0. When concentration of PAA (1%) was 120 microL/mL, the protein decreased in the supernatant was 30.83% at pH 4.0. PAA-Protein complex could redissolve in alkaline conditions (pH > 9.0) and the protein most easilly redissolved when the NaCL was 3.0%. The bitter melon seeds extraction after PAA purification flowed through the Sephadex G-75 columns. The peaks I and II were obtained after 175 min and 300 min, respectively. SDS-PAGE and IEF analysis showed that the molecule weight from peaks I was 30 kD with pI 9.5, peaks II 10 kD with pI 9.3.
Acrylic Resins
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chemistry
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Chemical Precipitation
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Momordica charantia
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chemistry
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Plant Extracts
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chemistry
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Plant Proteins
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chemistry
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isolation & purification
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Seeds
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chemistry
5.Recent advances in chemistry and biology of gamboge.
Jing YANG ; Li DING ; Wen-Yuan LIU ; Feng FENG ; Qing-Long GUO ; Qi-Dong YOU
China Journal of Chinese Materia Medica 2013;38(1):19-25
Gamboge, the resin of Garcinia hanburyi has had a long history of use as the traditional dye as well as a complementary and alternative medicine. The antitumor activities of gamboge have been well demonstrated by inhibiting the growth and progression of cancer cells both in vitro and in vivo. In order to further clarify the mode of action of gamboge, there are three key questions needed to be answered, including what's in gamboge? How do the chemical components from gamboge work on cancer cells? How do biological systems work on the chemical components from gamboge after administration? In this review, we summarize the explorations of the answers toward these questions according to the recent progress in both of chemistry and biology research of gamboge. In addition, the implication in the future research and discovery of the caged G. xanthones as anticancer agents is also discussed.
Animals
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Antineoplastic Agents, Phytogenic
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chemistry
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pharmacology
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Garcinia
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chemistry
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Humans
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Plant Extracts
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chemistry
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pharmacology
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Resins, Plant
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chemistry
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pharmacology
6.Enriching of total flavonoids from Herba Leonuri with polyamide and macroporous resin.
Dan-Ni YU ; De-Sheng XU ; Yi FENG ; Hong-Chang WEI
China Journal of Chinese Materia Medica 2008;33(3):264-268
OBJECTIVETo study the enriching method of total flavonoid from Herba Leonuri with polyamide and macroporous resin.
METHODSeven enriching and purifying methods were compared with the yield and purity as indexes. The method of enriching with polyamide and macroporous resin was confirmed and the process of purifying was determined by orthogonal design.
RESULTD101 resin is packed by wet method, the ratio of diameter to height is 1:7. After mixed with the extract liquids, the weight of wet resin increased to 3 times of the dry resin. Evaporated the wet resin to dryness, mixed well with a little of 95% ethanol and dry polyamide powder, evaporated them to dryness again. Elute with deionized water until the effluent being colourless, then loaded it on the macroporous adsorptive resin, elute with 50% ethanol, the volume of effluents was collected to 7 times of the column volume. The purity of total flavonoids reached to 23%, while the diversion rate from raw Herba Leonuri was to 69%.
CONCLUSIONThe process is simple and convenient, and the regeneration of resin is easy, which has a good application foreground.
Absorption ; Flavonoids ; isolation & purification ; Leonurus ; chemistry ; Nylons ; chemistry ; Resins, Plant ; chemistry
7.Microscopical study of original plant of Chinese drug "Dragon's Blood" Dracaena cochinchinensis and distribution and constituents detection of its resin.
Lan-Lan FAN ; Peng-Fei TU ; Jian-Xing HE ; Hu-Biao CHEN ; Shao-Qing CAI
China Journal of Chinese Materia Medica 2008;33(10):1112-1117
OBJECTIVETo study the anatomy of Dracaena cochinchinensis systematically, and find out the distribution and detect the constituents of its resin, in order to provide substantial foundation for the formation mechanism of its red resin.
METHODThe microscopic structures of D. cochinchinensis were systematically observed by using color micrographics, including stem with and without resin, roots, barks and leaves. The HPLC fingerprints of the stem with and without resin were compared.
RESULTCharacteristics of the tangentical longitudinal section of stem with resin and surface view of leaves were elucidated. Besides xylem vessels and fibers of the stem, it was found that the red resin also exists in the cortex parenchyma cells of the stem and the medulla and xylem of the root. According to the HPLC fingerprint analysis result of the stems with and without resin, a number of flavones and stilbenoids were detected in the stem in which resin appeared after it wounded.
CONCLUSIONNo secretory tissue to secrete resin was found in D. cochinchinensis, further study is needed to elucidate the formation mechanism of its resin.
Dracaena ; anatomy & histology ; chemistry ; metabolism ; Plants, Medicinal ; anatomy & histology ; chemistry ; metabolism ; Resins, Plant ; chemistry ; metabolism
8.Separation and purification of alkaloids from radix of Zanthoxylum nitidum by macroporous adsorption resin.
Shao LIU ; Wei ZHANG ; Peng LEI ; Xin-Zhong LI ; Yi-Zeng LIANG
China Journal of Chinese Materia Medica 2008;33(4):377-379
OBJECTIVETo obtain the optimal conditions for separating the alkaloids from the extract of Radix of Zanthoxylum nitidum by selecting appropriate macroporous adsorption resins.
METHODEight types of macroporous adsorption were evaluated in separating efficiency with measuring the adsorption ratio and eluting ratio of Alkaloids as indexes.
RESULTThe XDA-5 macroporous adsorption resin had the best separating efficiency. After enrichment and purification with it, the product purity and yield of alkaloids were up to 33.25% and 90.15%, respectively.
CONCLUSIONThis method is simple, feasible and fit for industry production.
Adsorption ; Alkaloids ; chemistry ; isolation & purification ; Porosity ; Resins, Plant ; chemistry ; Zanthoxylum ; chemistry
9.The study of characteristics of absorption and separation of different glycoside on macropore resins.
Yue-qi BI ; Shi-xiang HOU ; Sheng-jun MAO ; Ying-xin SONG
China Journal of Chinese Materia Medica 2003;28(3):217-220
OBJECTIVETo study the absorption and separation of different glycoside on different macropore resins.
METHODTake baikal skullcap root, cape jasmine fruit and white peony root as samples and study the different characterstics of absorption and separation of these samples on macropore resins such as D101 and so on.
RESULTThe static absorption effect of the the three aglycones on six different macropore resins is baicalin > lactiflorin > gardoside. Their elution are 75% CH3OH, 25% CH3OH, and 45% CH3OH. Their elution rates are 60%, 93%, and 93%.
CONCLUSIONSimilar molecules may not have similar absorption abilities on same macropore resins, but the effect of absorption has something to do with the structures of the molecules, the more double-bonds the molecules have, the greater the absorption force the resins have.
Absorption ; Flavonoids ; chemistry ; isolation & purification ; Fruit ; chemistry ; Glycosides ; chemistry ; isolation & purification ; Jasminum ; chemistry ; Molecular Structure ; Paeonia ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Resins, Plant ; Scutellaria baicalensis ; chemistry
10.Separation and purification of total flavones from Herba Epimedii by macroporous adsorption resin with the help of ultrasonic extraction.
Lilian ZHAO ; Shao LIU ; Jieying LUO
China Journal of Chinese Materia Medica 2009;34(6):702-704
OBJECTIVETo investigate the optimal separation of the total flavones from Herba Epimedii by macroporous adsorption resin.
METHODNine types of macroporous adsorption were evaluated for separating efficiency by measuring the adsorption ratio, eluting ratio of total flavones.
RESULTThe D-101 macroporous adsorption resin had the best separating efficiency. After enrichment and purification with it, the product purity of total flavones was up to 63.8%.
CONCLUSIONThis method is simple, feasible and fit for industry production.
Adsorption ; Epimedium ; chemistry ; Flavones ; isolation & purification ; Porosity ; Resins, Plant ; chemistry ; Ultrasonics