Posted by admin on Jul 1, 2013 in |
Preservatives prolong the shelf-life of food, cosmetics and pharmaceuticals by preventing their spoilage. Antimicrobials such as nitrites, nitrates, benzoates and sulfur dioxide destroy or delay the growth of bacteria, yeast and molds. Anti-oxidants such as butylated hydroxy toluene (BHT), butylated hydroxy anisole (BHA), and propyl gallate slow or stop the breakdown of fats and oils. Anti-enzymatic preservatives such as citric and erythorbic acids block the enzymatic processes such as ripening occurring in foodstuffs even after harvest. Natural substances like salt, sugar, vinegar and spices have been used as preservatives since time immemorial. The majority of preservatives used today are artificial rather than natural. Several of them are toxic and several others have potentially life-threatening side effects. Researchers have reported that artificial preservatives such as nitrates, benzoates, sulfites, sorbates, parabens, formaldehyde, BHT, BHA and several others can cause serious health hazards such as hypersensitivity, allergy, asthma, hyperactivity, neurological damage and cancer. Research has proven that several natural preservatives obtained from plants, animals, microbes and minerals contain antioxidant, antimicrobial and antienzymatic properties. Extracts...
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Posted by admin on Jul 1, 2013 in |
Carissa spinarum L. is a small spinous evergreen shrub growing throughout India in dry regions.The plant used locally in Indian and Chinese system of medicines to cure various diseases. Carissa spinarum has also been used in the Ayurvedic medical system because of its therapeutic effects against liver disease, epileptic disease, microbial disease, cytotoxic, viral diseases.The isolated metabolites and crude extract have exhibited a wide of in vitro and in vivo pharmacological effect, including antioxidant, antimicrobial, antiviral, anticonvulsant, anticancer, antiarthritic, antihelmintic, cytotoxic activity. A chemical study of this plant was then initiated, and this led to the isolation of 12 compounds, including a coumarin, two cardiac glycosides and nine lignans. These isolated compounds were evaluated for several biological activities, including antiherpetic, cytotoxic, antioxidant and antibacterial effects.A shrub, Carissa spinarum have emerged as a good source of the traditional medicines for the treatment of inflammation, arthritis, microbial infection, epilepsy, viral infection, cancer disease. Pharmacological results have validated the use of this species in the traditional medicines. Some bioassays are difficult reproduce...
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Posted by admin on Jul 1, 2013 in |
The article attempts to discuss the issues associated with technology transfer in the pharmaceutical industry. A major decision focuses on that point where the idea or process is advanced from a research- oriented program to target toward commercialization. The success of any program is highly dependent on the effectiveness of the communication preceding its implementation. The ultimate goal for successful technology transfer is to have documented evidence that the manufacturing processes for drug substances and drug product, respectively, are robust and effective in producing the drug substances and drug product complying with the registered specifications and Good Manufacturing Practice requirements. The Pharmaceutical Technology Transfer activities are to transfer product and process knowledge between development and manufacturing, and within or between manufacturing sites to achieve product realisation. This knowledge forms the basis for the manufacturing process, control strategy, process validation approach and ongoing continual improvement. To take all the gathered knowledge and use it as the basis for the manufacturing control strategy, the approach to process qualification and on-going continuous...
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Posted by admin on Dec 1, 2012 in |
The present study was undertaken to evaluate antioxidant, cytotoxic and antimicrobial activity of Sonneratia alba bark. The carbon tetrachloride, chloroform soluble partitionate of methanolic extract and crude methanolic extract showed significant antioxidant property using 1,1-diphenyl-2-pecrylhydrazyl(DPPH) scavenging assay ,of which chloroform partitionate and crude extract demonstrated highest activity with IC50 value of 12µg/ml and 14µg/ml respectively. In the brine shrimp lethality bioassay, LC50 values obtained from the best fit line slope were 0.812, 14.94, 0.831 and 3.288 µg/ml for standard (Vincristine sulphate), n-Hexane, carbon tetrachloride and chloroform soluble partitionate of methanolic extract respectively. The carbon tetrachloride soluble fraction revealed moderate activities against Bacillus cereus, Bacillus subtilis, Sarcina lutea, Pseudomonas aeruginosa and Shigella dysenteriae test...
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Posted by admin on Jul 1, 2012 in |
Background: Prescription of drugs, which needs to be continuously assessed and refined according to disease progression. It not only reflects the physician’s knowledge about drugs but also his/her skill in diagnose and attitude towards selecting the most appropriate cost-effective treatment. Antimicrobials are among the most commonly prescribed drugs in hospital. As per literature, they account for over 50% of total value of drugs sold in our country. Such studies have been sparse from Gujarat and hence, this study was undertaken. Methods: Retrospective study was carried out by collecting 350 prescriptions containing antimicrobial agents in paediatric department at Sir Sayajirao General (SSG) Hospital, Vadodara to assess the prescribing patterns of antimicrobial agents. All information about the drugs details recorded in pre-tested Proforma that was finalized by our Pharmacology department. Results: Total 350 prescriptions containing 690 antimicrobial drugs were prescribed in patients during study. Of them aminoglycosides (233; 33.77%) was frequently prescribed followed by β-lactam group (191; 27.68) and cephalosporins (176; 25.5%). Average numbers of antimicrobials per prescription was 1.97.Out of...
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