Efect Of Extraction Method And Size Reduction On The Antioxidant Content Of Neem Leaf Extract (Azadirachta Indica Juss)

Abstract

Neem leaf extract has antioxidant activity. The extraction method affects antioxidant activity and can  affect compounds that act as antioxidants such as flavonoids and phenols. The purpose of this study was  to determine the effect of extraction methods and size reduction on the antioxidant activity of neem leaf  extract. This study used a non-factorial Complete Randomized Design (RAL) method with the treatment  of the uncleasan extraction method by boiling with size reduction variations (blender and sprouting)  and the unclean method by microwave with size reduction variations (blender and thumping). The  results showed that the most amendments were obtained in the preliminary treatment by pounding and  continued with heating using a microwave with an amendment yield of 62.80%. All treatments on  phytochemical tests contain compounds of saponins, triterpenoids, steroids and tannins. The results  showed that the differences in extraction treatment methods had a very noticeable effect on the  antioxidant content produced from neem leaf extract. The longer the heat given to neem leaf extract, the  smaller the antioxidants produced. The best extraction method is to use the growing method which is  continued by heating using microwaves with an antioxidant value of 46.781%