UV ABSORPTION PROPERTY OF AMARANTHUS SPINOSUS L. LEAVES: EFFECT OF EXTRACTION SOLVENTS
Prasenjit Mitra, Tanaya Ghosh and Pasanta Kumar Mitra*
ABSTRACT
Since time immemorial Amaranthus spinosus linn. (A. spinous L.) is being used for medical treatment. Modern researchers found that this plant has a wide range of pharmacological activities like anti diabetic, anti gastric ulcer, anti cancer, anti inflammatory, anti oxidant, anti microbial, gastro protective, hepato protective etc. Aim of the present study was to examine effect of extraction solvents on UV absorbing property of the plant. Leaves of A. spinous L. were collected and identified by the taxonomist. Solvent extractions of the leaves were made separately by using methanol, acetone, benzene, ethanol, chloroform and ethyl acetate. In a spectrophotometer using UV region the extractions were separately exposed for absorption of UV ray. Result showed that all extracts of A. spinous L. leaves had UV absorption property but ethanol extract had maximum activity. Ethanol extract of A. spinous L. leaves, therefore, may be further studied for isolation of the active compound responsible for UV absorbing property for its use in preparation of sun screen lotions.
Keywords: Amaranthus spinosus linn. leaves; Solvent extractions; UV absorbing property.
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