Abstract
Psidium guajava Linn. Family- Myrtaceae (guava) is a short tree or shrub and folk medicinal plant. It is found in all over India. Each part of the guava tree is useful and has biological importance. Many phytochemicals are present in guava leaves such as flavanoids, alkaloids, tannins, saponins, glycosides, oil and fats, steroids, phenols, proteins, carbohydrates. It is used in various diseases like cough, diabetes, cardiac diseases, diarrhea, wound healing. Guava has various biological activities like antispasmodic, antimicrobial, hepato-protective, antioxidant, anti-diarrheal, anti-inflammatory, anti-allergy. Petroleum ether, chloroform, ethanol is for the extraction of the guava leaves. Soxhlet extraction method is used for the extraction. Liquid-liquid extraction is used for the extraction and purification of the extract and ethyl acetate used for extraction. Physicochemical parameters are studied such as ash value, extractive matter, crude fibre content, foreign matter, moisture content.
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