@article {1058, title = {Comparative Analysis of Antidermatophytic Potential of Cymbopogon citratus Essential Oil Stored in Different Temperature Condition for Two Years}, journal = {Pharmacognosy Research}, volume = {14}, year = {2022}, month = {July 2022}, pages = {241-245}, type = {Original Article}, chapter = {241}, abstract = {

Background: Cymbopogon citratus commonly known as lemon grass is a valuable medicinal plant. In present investigation variation in the antidermatophytic potential of C. citratus essential oil was estimated in different temperature and storage periods. Materials and Methods: C. citratus essential oil was extracted through hydrodistillation methods and kept in amber bottles in three different temperature conditions like room temperature (variable from 8-45{\textdegree}C), refrigerator temperature(2-6{\textdegree}C) and 30{\textdegree}C for 2 years. Minimum inhibitory concentration was determined after every fourth month of storage against selected dermatophytes. Results: Antidermatophytic activity of C. citratus oil was found prominent due to high concentration of citral derivatives. MIC was found to be stable against Trichophyton rubrum (MTCC 296) (0.1μL/mL) and T. mentagrophytes (MTCC 7687) (0.1μL/mL) at the end of experiment in all three temperature conditions. 30{\textdegree}C temperature condition was also found quite stable. A very slight increase of MIC was found against Candida albicans (MTCC 3018) and Microsporum fulvum (MTCC 2837) at 24 months (Sixth testing) of storage. Oil stored at room temperature showed variation in MIC as compared to initial one. MIC was found to double against M. fulvum (MTCC 2837) at sixth testing (0.4μL/mL) of storage as compared to first testing (0.2μL/mL). Conclusion: Present work concluded that essential oil stored in low temperature condition can maintained their primary composition and properties for long time. Therefore, storing of essential oil products in low temperature (below 8{\textdegree}C) condition is best practices for long time application of medicinal products.

}, keywords = {C. citratus, Dermatophytes, Essential oil, Longevity, MIC, Storage}, doi = {10.5530/pres.14.3.34}, author = {Neetu Jain and Meenakshi Sharma} } @article {875, title = {Antimicrobial Screening of Ethnobotanically Important Stem bark of Medicinal Plants}, journal = {Pharmacognosy Research}, volume = {2}, year = {2010}, month = {September 2010}, pages = {254-257}, type = {Original Article}, chapter = {254}, abstract = {

Background: The stem barks are the rich sources of tannins and other phenolic compounds. Tannins inhibited the growth of various fungi, yeast, bacteria and virus. Hence, ten stem barks of ethnomedicinally important plants were screened for antibacterial and antifungal activities against human pathogenic strains. Methods: Air-dried and powdered stem bark of each plant was extracted with 50\% aqueous ethanol, lyophilized and the dried crude extracts were used for the screening against 11 bacteria and 8 fungi. Antibacterial and antifungal activities were performed according to microdilution methods by NCCLS. Results: The plants Prosopis chilensis, Pithecellobium dulce, Mangifera indica showed significant antibacterial and antifungal activities against Streptococcus pneumonia, Enterobacter aerogenes, Klebsiella pneumonia and Candida albicans with MIC of 0.08mg/ml. Pithecellobium dulce bark also showed significant antibacterial activity against Bacillus cereus. Conclusion: The bark of Pithecellobium dulce has more or less similar activity against the known antibiotic and may be considered as potent antimicrobial agent for various infectious diseases.

}, keywords = {Antibacterial, Antifungal, Bark, Ethnobotany, MIC}, doi = {10.4103/0974-8490.69127}, author = {Meenakshi Singh and Sayyada Khatoon and Shweta Singh and Vivek Kumar and Ajay Kumar Singh Rawat and Shanta Mehrotra} }