Validation of MPM method to determine antioxidant content in traditional and hydroponic grown water spinach

Abstract Water spinach ( Ipomoea reptans ) is Indonesia’s widely used vegetable type. This has a good taste and contains nutrients that benefit the body. generally grown traditionally, but some are produced with hydroponic system. research aims to validate MPM method determine antioxidant content in two growth systems of water samples. The validation parameters linearity, LoD, LoQ, RSD, % recovery. results show valid use. Statistically, types was significantly different, where traditionally higher than others.