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