scholarly journals Studies on the pharmaceutical quality evaluation of crude drug preparations used in orient medicine "Kampoo". III. Precipitation reaction of glycyrrhizin with alkaloids or alkaloidal crude drugs in aqueous solution.

1978 ◽  
Vol 26 (12) ◽  
pp. 3652-3657 ◽  
Author(s):  
MAMORU NOGUCHI ◽  
MICHINORI KUBO ◽  
TERUAKI HAYASHI ◽  
MEIZI ONO
Keyword(s):  
Aqueous Solution ◽  
Quality Evaluation ◽  
Precipitation Reaction ◽  
Pharmaceutical Quality ◽  
Crude Drug ◽  
Crude Drugs

Effect of Precipitation Method on Stoichiometry and Morphology of Hydroxyapatite Nanoparticles

2007 ◽  
Vol 330-332 ◽  
pp. 271-274 ◽  
Author(s):  
He Bin Shi ◽  
Hong Zhong ◽  
Yu Liu ◽  
Jin Yan Gu ◽  
Chang Sheng Yang
Keyword(s):  
Aqueous Solution ◽  
Crystal Size ◽  
Ostwald Ripening ◽  
Precursor Solution ◽  
Reaction Vessel ◽  
Reaction Process ◽  
Precipitation Method ◽  
Precipitation Reaction ◽  
Hydroxyapatite Nanoparticles ◽  
Coprecipitation Process

This paper reports synthesis of hydroxyapatite nanoparticles by three precipitation methods. Homogeneous aqueous solution of Ca(NO3)2 and H3PO4 was used as precursor solution, and NH3•H2O was precipitator. Calcium deficient hydroxyapatite nanorods were obtained by adding the precipitator into precursor solution, near stoichiometric hydroxyapatite nanoparticles were derived from adding precursor solution into the precipitator, and smaller hydroxyapatite nanoparticles were prepared by adding precipitator and precursor solution simultaneously into a reaction vessel. The stoichiometry of hydroxyapatite was mainly affected by pH at precipitation reaction process. The crystal size and shape of hydroxyapatite particles was related to Ostwald ripening. The stoichiometry and morphology of hydroxyapatite nanoparticles can be controllable by selecting suitable coprecipitation process.

scholarly journals Anti-inflammatory constituents of topically applied crude drugs. III. Constituents and anti-inflammatory effect of paraguayan crude drug "tamanda cuna" (Catasetum barbatum Lindle).

1988 ◽  
Vol 36 (11) ◽  
pp. 4447-4452 ◽  
Author(s):  
MINEO SHIMIZU ◽  
HISASHI SHOGAWA ◽  
TOSHIMITSU HAYASHI ◽  
MUNEHISA ARISAWA ◽  
SHOICHI SUZUKI ◽  
...  
Keyword(s):  
Crude Drug ◽  
Crude Drugs ◽  
Anti Inflammatory ◽  
Inflammatory Effect

scholarly journals Anti-inflammatory constituents of topically applied crude drugs. IV. Constituents and anti-inflammatory effect of Paraguayan crude drug "Alhucema"(Lavandula latifolia Vill.).

1990 ◽  
Vol 38 (8) ◽  
pp. 2283-2284 ◽  
Author(s):  
Mineo SHIMIZU ◽  
Hisashi SHOGAWA ◽  
Takayasu MATSUZAWA ◽  
Sakiko YONEZAWA ◽  
Toshimitsu HAYASHI ◽  
...  
Keyword(s):  
Crude Drug ◽  
Crude Drugs ◽  
Anti Inflammatory ◽  
Lavandula Latifolia ◽  
Inflammatory Effect

scholarly journals Evaluation of Physiochemical Screening and Standardization on the Root of Rotula aquatica Lour.

2013 ◽  
Vol 1 (01) ◽  
pp. 63-67
Author(s):  
Abhishek B. ◽  
Avinash Saini
Keyword(s):  
Moisture Content ◽  
Water Soluble ◽  
Isolation And Identification ◽  
Crude Drug ◽  
Successive Extraction ◽  
The Family ◽  
Microscopic Studies ◽  
Crude Drugs ◽  
Chloroform Methanol

The root of Rotula aquatica is also called as pashanbed, belonging to the family Borogenaceae. It is widely distributed in India from kumaun to Assam and western to southern India.The medicinal values of plant lie in their component phytochemicals such as alkaloids, flavonoids, phenolic compounds and other nutrients like as amino acid, proteins, which produce a definite physiological action on the human body. The proximate values such as moisture content, ash value, extractive value, were carried out. The dried roots powder was subjected to successive extraction with different solvents like petroleum ether, benzene, chloroform, methanol, ethanol and water. Macroscopic as well as microscopic studies of any crude drug are the primary steps to establish its botanical quality control before going to other studies. Hence Standardization of crude drug plays a very important role in identifying the purity and quality of crude drugs. The present investigation reveals Standardization which include Moisture Content, Total ash, Acid insoluble ash, Water soluble ash, Water soluble Extractive value, Alcohol soluble Extractive value, Phytochemical screening, and further isolation and identification of Phytoconstituents.

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