PHARMACOGNOSTICAL EVALUATION OF NISHA KANDA (RHIZOME OF CURCUMA LONGA LINN.) AND AMALAKI PHALA (FRUIT OF PHYLLANTHUS EMBLICA LINN.)

Background: Curcuma longa Linn. (Nisha) and Phyllanthus emblica Linn. (Amalaki) are important medicinal plants used in Ayurveda. Pharmacognostic evaluation plays a vital role in establishing their identity, authentication, and quality through characteristic macroscopic and microscopic features. Objective: The study aims to evaluate the pharmacognostic characteristics of Nisha Kanda and Amalaki Phala in their fresh, dried, and powdered forms. Materials and Methods: Macroscopic evaluation was performed by examining the size, shape, colour, external surface, cut surface, fracture, texture, odour, and taste of the fresh and dried rhizomes of Curcuma longa and fruits of Phyllanthus emblica. Microscopic evaluation was carried out on transverse sections of fresh samples and powders of the dried plant materials to identify characteristic anatomical structures and diagnostic elements. Results: Macroscopic examination revealed characteristic features of both drugs, including the bright orange-yellow internal surface and aromatic odour of Nisha rhizome, and the six vertical furrows and sour-astringent taste of Amalaki fruit. Microscopic examination of Nisha rhizome showed cork cells, parenchymatous tissues, oleoresin-containing cells, vascular bundles, and abundant starch grains. Amalaki fruit exhibited distinct epicarp, mesocarp, and endocarp layers, along with vascular bundles, starch grains, calcium oxalate crystals, and stone cells. Powder microscopy further revealed characteristic cellular and vascular elements useful for identification. Conclusion: The pharmacognostic evaluation established characteristic macroscopic and microscopic features of Nisha Kanda and Amalaki Phala. These findings provide preliminary diagnostic parameters for their authentication and quality assessment and serve as a baseline for further standardization studies.