Open AccessProduction of secondary metabolite E2.2 from Phaleria macrocarpa endophytic fungus
Author(s) -
Beatrix Trikurnia Gasong,
Raymond R. Tjandrawinata
Publication year - 2016
Publication title -
asian pacific journal of tropical biomedicine/asian pacific journal of tropical biomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 61
eISSN - 2588-9222
pISSN - 2221-1691
DOI - 10.1016/j.apjtb.2016.01.005
Subject(s) - fungus , phloroglucinol , fermentation , metabolite , plant use of endophytic fungi in defense , biology , pathogenic fungus , food science , botany , biochemistry
ObjectiveTo isolate new endophytic fungus from Phaleria macrocarpa (P. macrocarpa) that is able to produce E2.2 compound.MethodsEndophytic fungi were isolated from P. macrocarpa. Morphological and molecular identification was done to determine the species of the endophytic fungus. High performance liquid chromatography was used to determine the ability of this fungus to produce E2.2 compound and to quantify the total yield of E2.2 from fungal fermentation. Fermentation process was optimized by observing suitable medium, pH and length of fermentation process. Phloroglucinol and gallic acid addition were examined to determine the effect of each compound on E2.2 production.ResultsOne endophytic fungus was successfully isolated from P. macrocarpa plant. Morphological and molecular identification showed that it was a Colletotrichum gloeosporioides which belonged to Glomerellaceae family. This fungus showed highest production of E2.2 when incubated in potato dextrose broth with initial pH value of the medium at 5, and was incubated for 15 days. Phloroglucinol was found to better enhance E2.2 production.ConclusionsColletotrichum gloeosporioides found in P. macrocarpa plant is promising as a potential alternative source of E2.2