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B. Murali , A. Amit , M. S. Anand , B. V. Venkataraman

Abstract

Objective: To develop an HPLC method for estimation of psoralen, bakuchicin and bakuchiol in Psoralea corylifolia. Materials and methods: An gradient, reverse phase (RP) HPLC procedure using a mixture of Phosphate buffer and acetonitrile as mobile phase, C18 column as stationary phase and UV detector. Results: The developed method shows high resolution, accuracy and reproducibility. Conclusions: The method developed is accurate, precise and specific.

Keywords

Psoralea corylifolia, Psoralen, Bakuchicin, Bakuchiol, HPLC

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B. Murali , A. Amit , M. S. Anand , D. S. Samiulla

Abstract

Objective: Estimation of wedelolactone (WDL) and demethylwedelolactone (DWDL) in Eclipta alba Hassk. by HPLC. Materials and methods: An Isocratic, reverse phase (RP) HPLC procedure for the standardization of Eclipta alba using a mixture of 0.1% v/v Ortho phosphoric acid and acetonitirile as mobile phase C8 column as stationary phase and photo diode array detector. Results: The above method shows high resolution, accuracy, economical and reproducibility. Conclusions: The method developed is useful in standardization of Eclipta alba material.

Keywords

Eclipta alba, Wedelolactone, Demethylwedelolactone, HPLC

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B. Murali , A. Amit , M. S. Anand , T. K. Dinesh , D. S. Samiulla

Abstract

Objective: To develop an improved HPLC method for estimation of phyllanthin and hypophyllanthin in Phyllanthus amarus. Materials and methods: An Isocratic, reversed phase (RP) HPLC procedure has been adopted using a mixture of pH 2.8 Phosphate buffer and acetonitrile as mobile phase, CN column as stationary phase and UV detector. Results: The developed method shows high resolution (R = 1.9), accuracy and reproducibility. Conclusion: The method developed is relatively better in terms of separation than the previously reported methods.

Keywords

Phyllanthus Amarus, Phyllanthin, Hypophyllanthin, HPLC

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P. C. Arun , B. Murali , M. S. Anand , M. Deepak

Abstract

Objective: Detection of pyrrolizidine alkaloids (PA) in some polyherbal formulations. Materials and methods: Silica gel TLC with specific spray reagent for PA. Results: None of the herbal formulations tested were positive for PA. Phyllanthus amarus ischolar_mains were found to contain PA. Conclusion: TLC method is recommended for routine detection of PA in plant drugs.

Keywords

Phyllanthus Amarus. Pyrrolizidine Alkaloids, TLC, Polyherbal Formulations

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K. Ashok , A. Amit , M. Sujatha , B. Murali , M. S. Anand

Abstract

Objective: The experiment was conducted to know the effect of aging on andrographolide content in Andrographis paniculata (Kalmegh) to establish the best harvesting time. Materials and method: The growth and yield parameters were studied at 30, 60, 90, 120 and 150 days after sowing. The andrographolide content was estimated by HPLC method. Results and conclusion: The best harvesting time was observed at 120 days after sowing to get higher biomass containing maximum andrographolide content.

Keywords

Andrographis paniculata, Andrographolide Content, Aging

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B. Murali ¹, B. Vijaya Ramnath ², D. Chandramohan ³

Affiliations
1 Department of Mechanical Engineering, Vel Tech, Avadi, Chennai - 600062, Tamil Nadu, IN
2 Department of Mechanical Engineering, Sri Sairam Engineering College, Chennai – 600044, Tamil Nadu, IN
3 Department of Mechanical Engineering, Hindustan Institute of Technology and Science, Chennai-603103,Tamil Nadu, IN

Abstract

Objectives: In this analysis, natural fibers like, Jute, Kenaf and hemp; Jute and Hemp (mixture) Hemp and Kenaf (mixture), Jute and Kenaf (mixture) are invented with bio epoxy stick abuse forming system. This work, affects quality of Hemp and Kenaf (mixture), Jute and Kenaf (mixture) and Jute and Hemp (mixture) composite at dry and wet conditions were examined. Affect check were directed Izod affect testing machine and the little structure of the examples are checked by the Scanning magnifying instrument and contrast the leads with Ansys. Methods/Statistical Analysis: A synthetic check could be a subjective or quantitative strategy intended to demonstrate the presence of, measure, a substance or unit with the assistance of a chose compound specialist. The synthetic testing was performed in both sulphuric. The bits of the fiber strengthened polymer composite were initially weighed and after that drenched in the corrosive for around 24 hours. The pieces were then were made to a temperature of around 105°C and again weighed. The outcome uncovers the erosion resistance of the mixture polymer composites. Findings: Fiber-strengthened compound composites have contend a predominant parent for an extended time in an exceedingly style of uses for high particulate quality and modulus. The fabricate, utilize and expulsion of antiquated fiber-reinforced plastic, now and again made of glass, carbon or aramid fibers-reinforced thermoplastic and thermo-setting gums zone unit considered fundamentally on account of ecological issues. By characteristic fiber composites we tend to mean a material that is reinforced with strands, particles or platelets from regular or renewable assets, in refinement to for instance carbon or aramide filaments that should be integrated. The aftereffect of strands on effect quality for the examples prepared for each dry and wetness conditions. This check are regularly utilized as quick and basic inner control look at to work if a texture meets particular effect properties or to match materials for general sturdiness. Application/Improvements: Mixture fiber composites show halfway weak nature of break in view of the nearness of hemp strands. So by examining the protective cap display, and Experimental Results, it’s demonstrated that common fiber supported stuff of jute and hemp Hybrid material elements a property quality for the apparatus of Motor cycle Safety head protectors.

Keywords

Ansys, Bio Polymers, Hemp, Jute, Kenaf, SEM

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