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Abstract

PRELIMINARY PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITY OF LEAF, STEM AND FRUIT OF ANANAS COMOSUS

Dr. P. A. Mary Helen*, Teena D. S., Godwin Jacob J. G., Jinto James J. and Anitha C.

ABSTRACT

The present study was aimed to evaluate the phytochemicals and antioxidant activity of leaf, stem and fruit of Ananas comosus. The leaf, stem and fruit of plant were used for preparation of extracts by grinding process using sodium acetate buffer. Phytochemical and biochemical analysis of crude extracts showed the presence of saponin, terpenoid, flavonoid, aminoacid, protein, phytosterol, carbohydrate, alkaloid, cardiac glycosides but the extract showed negative for tannin, Phenols. The crude extracts were further subjected to purified fractions and those extracts were used for anti - oxidant assay by 2, 2 - diphenyl - 1 - picrylhydrazl (DPPH) method. The crude extract of stem (70.2%) showed significant activity than crude extracts at leaf, fruit and purified fractions.

Keywords: Ananas comosus, phytochemical, biochemical, antioxidant activity.


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