PHYTOCHEMICAL ANALYSIS OF ECENG GONDOK (Eichhornia crassipessolms) OF AGRICULTURAL WASTE AS BIOSENSITIZER FOR FERRI PHOTOREDUCTION

Johnly Alfreds Rorong, Sudiarso Sudiarso, Budi Prasetya, Jeany Polii-Mandang, Edi Suryanto

Abstract


It has been done analysis for the total  phenolic, flavonoid  and tannin compounds at eceng gondok leafs (Eichornia crassipessolms). The research was done in several stages: sample preparation, maceration extraction, evaporation. The total phenolic content analysis by Folin Ciocalteu 50%, flavonoid by chloride aluminium 2% in ethanol, and tanin by vanillin 4% solution in methanol, continued by using ultra violet visible (UV-Vis) spectrophotometry methods.

The results showed that the total phenolic content of eceng gondok with methanol 60% of 2.72mg galic acid/kg sample is the high total phenolic content and the lowest phenolic total  at aquades of 1.07mg galic acid/kg and the flavonoid with methanol 80% solution of 3.29mg kuersetin/kg is the high flavonoid content, and the lowest at the aquades of 1.65mg kuersetin/kg and the high condensed tannin content with methanol 80% of 0.7mg katekin /kg. The Fe2+ content photoreduction process, with methanol 60% solution showed the Fe2+ production increase of 17.67ppm, aquades of 2.94ppm. Extract that does not contain eritosin as sensitizer only produce Fe2+ of 5.6ppm and that is not illuminated only 0.06ppm

 

Keywords: phytochemical, agricultural waste, eceng gondok, biosentizer, ferric photoreduction

 

 


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DOI: http://doi.org/10.17503/agrivita.v34i2.106