Posted by admin on Sep 1, 2014 in |
Herbs have been widely used for centuries as remedies for diseased human conditions as they have certain phytochemicals of diseases curing nature. The present study explains the antimicrobial (antibacterial & antifungal) potential of dried stem wood of Cissuspallida methanolic extract against bacterial strains of Bacillus subtilis, Klebsiella pneumonia, Staphylococcus aureus, Escherichia coli, Pseudomonas aureginosa, and Aspergillus niger, Aspergillus fumigates, Monoscus purpure fungal strains by Disc diffusion method. The test extract was compared with Ciprofloxacin 5 μg for bacterial organisms and Fluconazole 20 μg for fungal organisms. The extract showed significant antibacterial and antifungal activity which was confirmed by the zone of inhibition...
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Posted by admin on Sep 1, 2014 in |
Peridiopsora mori (Barclay) K.V. Prasad, B.R.D. Yadav & Sullia is one of the fungi which cause brown leaf rust on Mulberry (Morus spp.). Leaf rust disease is one of the major diseases affecting Mulberry (Morus sp.). Synthetic fungicides are commonly applied to reduce disease; however, its improper use may cause residual toxicity on silkworm, environmental and health problems. The extracts of angiosperm medicinal plants were proven by previous workers to possess antimicrobial activities against plant pathogenic fungi. In this study, the antifungal activity of leaf extracts of 5 rarely occurring medicinal plants in Kerala (Mesua ferrea L., Memecylon randerianum S. M. Almeida & M. R. Almeida, Pittosporum tetraspermum Wight & Arn., Symplocos cochinchinensis (Lour.) S. Moor and Syzygium laetum (Buch.-Ham.) Gandhi) were tested against Peridiopsora mori. Antifungal activity of the leaf extract was tested based on the poisoned food technique on potato dextrose agar (PDA). Leaf extracts, 5%, 10%, 15%, 20% and 25% were tested in this study. The results of this study showed that leaf extract of all...
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Posted by admin on Sep 1, 2014 in |
The petroleum (Pet.E), methanol (MeOH) and chloroform (CHCl3) extracts of Rauvolfia canescens (whole plant), Desmodium heterocarpon (whole plant) and Vitex negundo (leaf CHCl3 MeOH and root Pet. E.) have been thoroughly screened through residual film assay against T. castaneum adults and the repellent activity tests were also carried out on the same to find biological activities. The residual film assay offered promising results with remarkable activity against the adult beetles of T. castaneum. A perusal of the data achieved in this experiment clearly showed the presence of insecticidal properties in Rauvolfia canescens (whole plant), Desmodium heterocarpon (whole plant) and Vitex negundo extracts as well as traces of repellent potential. For repellency D. heterocarpon (whole plant /Pet. Ether) extract and V. negundo (leaf /Pet. Ether) extract were weakly active (P <0.05) and R. canescens (whole plant /Pet. Ether) extract and V. negundo (root /Pet. Ether) extract were mildly active (P<0.01); while the rest showed no repellent activity against the adults beetles of T. castaneum. Comprehensive phyto-chemical analyses of the test...
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Posted by admin on Aug 1, 2014 in |
The World Health Organization survey indicated that about 70-80% of the world’s populations rely on non-conventional medicine, mainly of herbal sources, in their primary healthcare. Among them parasitic plants are well known, 20 different species are belonging to the genus Dendrophthoe falcate (Loranthaceae) found all over the world, seven of which are found in India. The hemiparasite, Dendrophthoe falcata (L.f.) is one of the seven species present in India. It is used in the treatment of ulcer, asthma, pulmonary TB, wound healing, menstrual disorder, also used as an aphrodisiac. The water extract of Dendropthoe falcata showed satisfactory antimicrobial activity against gram-positive strains Staphylococcus aureus, Bacillus subtilis and gram-negative strains Escherichia coli; while methanolic extract of Dendropthoe falcata shows satisfactory antioxidant...
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Posted by admin on Aug 1, 2014 in |
Spirulina platensis is a blue-green alga that widely used as a food supplement over worldwide. Two models were used to study the effects of Spirulina platensis on nociception which was induced by acetic acid (Writhing test), formalin (Paw licking test). Spirulina platensis was administered in the dose range of 200 and 400 mg/kg orally 1 h before pain induction. Spirulina platensis contains β-carotene and biliproteins (phycocyanin and biliphycocyanin). Oral administration of Spirulina platensis revealed dose-dependent antinociceptive effect in all the models for antinociception, and it blocked both the neurogenic and inflammatory pain, and the nociceptive activity was comparable with the reference drug. The results indicate that 400 mg/kg dose of Spirulina platensis showed significant antinociceptive activity. The activity can be related with the significant biliprotein such as phycocyanin and biliphycocyanin that have potent antioxidant...
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