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This research aims to evaluate the pharmacognostical properties of Nimba (Azadirachta indica) stem bark for medicinal applications.

August 1, 2026Open Access

Pharmacognostical Evaluation and Microscopic Authentication of Nimba Bark (Azadirachta Indica A. Juss.)

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Randomized trial evaluates the pharmacognostical features of Nimba bark in Ayurveda, indicating quality assurance for herbal medicine.

This research aims to evaluate the pharmacognostical properties of Nimba (Azadirachta indica) stem bark for medicinal applications.
Conducted macroscopic and microscopic evaluations of Nimba stem bark and its powder.
Performed examinations at the Pharmacognosy Laboratory of Dravyaguna Vijnana, Government Ayurved College, Vadodara.
Macroscopic examination identified curved bark pieces with a greyish-brown exterior and reddish-brown interior.
Microscopic analysis showed cork with tannin-rich cells, phloem fibres, medullary rays, and calcium oxalate crystals.

Neha Pawar1*, Dilip Jani2, Dharmendra Jani3 (2026) studied this question.

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