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Pharmacognosy Journal, 2011; 3(25):39-43
Original Article | doi:10.5530/pj.2011.25.7

Pharmacognostic and Phytochemical Investigation of Juglans regia Linn. bark

Authors and affiliation (s):

Thakur NirmlaDevi1*; Vinita Apraj1; Ashok Bhagwat2; Rashmi Mallya3; Laxman Sawant4; Nancy Pandita4

1School of Science, SVKM’s NMIMS, Vile Parle (West), Mumbai -56.

2SVKM’s C.B. Patel Research Centre, Vile Parle (West), Mumbai -56.

3SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (West), Mumbai -56.

4School of Pharmacy & Technology Management, SVKM’S NMIMS, Vile Parle (West), Mumbai -56


Juglans regia Linn belongs to family Juglandaceae. It is commonly known as Walnut tree. Juglans regia bark has been claimed to possess anti-inflammatory, blood purifying, anticancer, depurative, diuretic and laxative activities. The bark is finely powdered and used to prevent bleeding gums and as a mouth rinse. The present investigation deals with microscopic evaluation of bark and establishment of its quality parameters, including physicochemical, phytochemical evaluation, HPTLC analysis & Microbial load. Chief microscopic characters include cork, phloem fibres with stone cells & calcium oxalate crystals. Phytochemical screening revealed presence of reducing sugars; alkaloids; tannins & phenols; steroids & saponins. The bark powder was found to be free from pathogenic organisms. The study will provide referential information for the correct identification of the crude drugs.

Key words: Juglans regia Linn, Pharmacognostic study, Phytochemical analysis, HPTLC analysis.


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