STUDIES OF DIFFERENT SOLVENTS ON TOTAL PHENOLIC, FLAVONOID CONTENT, AND ANTIOXIDANT ACTIVITIES OF PEEL EXTRACTS OF PINEAPPLE PEEL VAR.JALDHUP.

The pineapple (Ananas comosus L.) contains several bioactive and volatile components, the repercussions of oxidative stress are mitigated by natural antioxidants also found in a Pineapple peels var. Jaldhup. This study aims to quantify the total phenolic and flavonoid contents (TPC and TFC) and antioxidant properties of Pineapple peel extracted in various polar and non polar solvents using Microwave assisted extraction (MAE). These peels contain polyphenols and flavonoids that act as free radical scavengers, reduce oxidative stress, and may be an alternative remedy to cure various detrimental human diseases. After investigating several solvents, the highest TPC value was found in methanolic extract at 15.25 mg GAE/g, while the lowest was found in ethyl acetate extract at 2.83 mg GAE/g. The highest TFC value was found in water at 11.18 mg QE/g, while the lowest was found in ethyl acetate at 2.9 mg QE/g. The peel had remarkable antioxidant properties. With methanol, pineapple peel has the highest In vitro antioxidant activity (76.25 µg/mL), whereas acetone has the lowest In vitro antioxidant activity (61.04 µg/mL). Since pineapple peel has exceptional phytoconstituents, it can be exploited in phytotherapy and pharmacology as a source of natural antioxidants. [ABSTRACT FROM AUTHOR]