Entity

Time filter

Source Type

Nainital District, India

Joshi S.,Kumaun University | Mishra D.,Birla Institute of Applied science
Research Journal of Medicinal Plant | Year: 2013

An attempt has been made to analyse macro and micro elements in three medicinal plants (Solidago canadensis, Buddleja asiatica and Leucas hyssopifolia) collected from different regions of Uttarakhand, India. Macro minerals viz., sodium, potassium, calcium, lithium were estimated by Flame Photometer while micro minerals viz., iron, copper, manganese, zinc and cobalt were determined by atomic absorption spectrophotometer. Among all the elements, highest concentration of calcium was recorded in all of the three plants followed by potassium and sodium. Macrominerals such as sodium, potassium, calcium were present in greater amount in L. hyssopifolia while S. canadensis was found to be richer in microminerals. © 2013 Academic Journals Inc. Source


Joshi S.,Kumaun University | Mishra D.,Birla Institute of Applied science | Khetwal K.S.,Kumaun University | Bisht G.,Kumaun University
Research Journal of Phytochemistry | Year: 2012

This study was designed to examine the in vitro antimicrobial activity of methanol extract of Buddleja asiatica Lour, leaves and flowers. The inhibitory effects were tested against 6 bacterial (Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Proteus vulgaris, Bacillus mycoides) and 2 fungal (Aspergillus niger, Candida albicans) strains using disc diffusion method. The results showed that the flowers extract exhibited good antimicrobial activity as compared to the leaves extract. © 2012 Academic Journals Inc. Source


Joshi S.,Kumaun University | Mishra D.,Birla Institute of Applied science | Bisht G.,Kumaun University | Khetwal K.S.,Kumaun University
EXCLI Journal | Year: 2011

The essential oil of Lobelia pyramidalis was analyzed by GC and GC-MS. A total of 21 con-stituents comprising 77.88% of the total oil were identified. Perilla ketone constituted 25.61% of the oil followed by camphorquinone (12.16%), dibutyl phthalate (10.66%) and allyl nonanoate (8.47%). The antimicrobial activity of the oil was evaluated using the disc diffusion method and the microdilution technique. The results showed that the oil exhibited moderate antimicrobial activity. Source


Mishra D.,Birla Institute of Applied science | Joshi S.,Kumaun University | Sah S.P.,Kumaun University | Dev A.,Birla Institute of Technology | Bisht G.,Kumaun University
Indian Journal of Natural Products and Resources | Year: 2011

The chemical composition of the essential oil obtained from the leaves and roots of Senecio rufinervis DC. was analyzed by GC, GC/MS and NMR. Germacrene D was the major constituent in both the oils studied (40.19 and 24.95%, respectively). The antimicrobial activity of the oil was determined by disc diffusion method. Results showed that both the oils exhibited significant antibacterial activity. Source


Joshi S.,Kumaun University | Mishra D.,Birla Institute of Applied science | Bisht G.,Kumaun University | Singh Khetwal K.,Kumaun University
Indian Journal of Natural Products and Resources | Year: 2013

The study aim was to evaluate the concentration of mineral elements and antimicrobial activity of Swertia cordata (G. Don) Clarke aerial parts and roots. Macro minerals, viz. sodium, potassium, calcium, lithium were estimated by Flame Photometer while micro minerals, viz. iron, copper, manganese, zinc and cobalt were determined by Atomic Absorption Spectrophotometer. Among all the elements, highest concentration of potassium was recorded in both aerial parts (385.6 mg/100 g) and roots (421.3 mg/100 g) of S. cordata. Methanol extract of both S. cordata aerial parts and roots obtained by Soxhlet extraction were screened for their antimicrobial activity against 6 bacteria and 2 fungi using disc diffusion method. The results showed that both the extracts exhibited moderate antibacterial activity while roots showed good antifungal activity against Candida albicans (ZOI =20 mm). Source

Discover hidden collaborations