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Neelam Kumari*, Dr. Balbir Singh and Narinder Singh


The Pinus roxburghii Sarg (Pinaceae) is commonly known as chir
pine. It is a large tree up to 28-55 m in height. The bark is red-brown,
leaves are needle-like, in fascicles of three, very slender, distinctly
yellowish green. The P.roxburghii is an economically valuable species,
balancing the ecosystem of the Indian mountains. The plant have their
own pharmaceutically importance. In traditional system of medicine
different parts of the plant have been used for cough, cold, influenza,
tuberculosis, bronchitis antiseptic, diaphoretic, diuretic, rubefacient,
stimulant and vermifuge. Bark paste is used in burns. Resin is used to
relieve cough and gastric troubles. Plant is used as intestinal antiseptic,
hypolipidimic, antioxidant property. The present study was undertaken
to assess pharmacognostic parameters and phytochemical screnning of bark of Pinus
roxburghii Sarg. Organoleptic evaluation of bark were done by studying organoleptic features
like shape, size,colour, odour, taste and fracture In microscopy the bark was soaking into
water filled beaker so that sufficient moistening is obtained for microscopy. In powder
microcsopy dried powdered material was obtained by grinding bark and visual under
microscope taken at 100x .To evaluate the Physico chemical property the crude dried plant
material was subjected to study the various parameters such as extractive value using
different solvent pet ether, chloroform, methanol and water, also calculate the percentage
yield of moisture content, ash value including acid insoluble, water soluble ash, fluorescence
analysis and loss on drying etc were evaluated by using standard procedures. To evaluate the
phytochemical screening of extracts the different solvents were used such as Sodium
hydroxide, Chloral hydrate, Ferric chloride, Sulphuric acid, Iodine, Lead acetate, Magnesium, Potassium iodide, Picric acid, Mercuric chloride, Nitric acid and identify which chemical constituents are present in the bark of P. roxburghii.

Keywords: Pinus roxburghii,extractive value, microscopy, phytochemical screening and picric acid.

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