The Effect of Different Fertilizer and Extraction Method on Secondary Metabolites of Azolla Pinnata

Abstract

Azolla pinnata is an aquatic plant that comes from the order of Pteridophyta and family of Azollaceae that can be found floating on the surface of waters and can only grow at non-moving or slow-moving water areas. This research aims to understand the effect of different extraction methods and fertilizers on Azolla pinnata and its secondary metabolites. The fertilizers treatments that were tested were chicken manure and AB. The different extraction methods that were tested were SFE and Soxhlet extraction. In the test, the amount of dry weight of A.pinnata obtained from using AB fertilizer was higher compared to chicken manure. For the extraction, both SFE and Soxhlet extraction produced an almost similar amount of extracts but different amounts of secondary metabolites. The amounts of the secondary metabolites were determined and analyzed using GC-MS. The metabolites identified were theamine, bioxirane, acetic acid, 9 methyl-1-decene, glycerine, dihydroxyacetone, thymine, pyranone, 6-fluoro-2-trifluoromethylbenzoic acid, 2-formyl-4,6 dichlorophenyl ester, and isoglutamine. Based on the result, treatment with AB fertilizer provides higher amounts of secondary metabolites in A.pinnata compared to chicken manure, while for extraction methods, SFE provides higher amounts of secondary metabolites in A.pinnata compared to Soxhlet extraction.