Open AccessEffect of different solvents and extraction conditions on fiber contents of local corns silk powders
Author(s) -
Haslina,
Danar Praseptiangga,
Valentinus Priyo Bintoro,
Bambang Pujiasmanto
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/633/1/012035
Subject(s) - solvent , central composite design , fiber , factorial experiment , extraction (chemistry) , response surface methodology , methanol , ethanol , ethyl acetate , materials science , silk , randomized block design , chemistry , chromatography , composite material , organic chemistry , mathematics , statistics
The aim of this study was to optimize the different solvents and extraction conditions on fiber contents of local corn silk powders. Each sample of corn silk powder extract was analyzed by enzymatic method for fiber content including soluble fiber, insoluble fiber and total fiber. Design using Factorial Randomized Block Design (RBD) with 4 factors are local varieties of cornsilk (Bisma, Arjuna and Srikandi Putih), different solvents (water, methanol, ethanol and ethyl acetate), different concentration of solvents ( methanol (60%, 70% and 80%), ethanol (60%, 70% and 80%), ethyl acetate (60%, 70% and 80%) and water), and ratio of material and solvent (1:5 (w/v), 1:10 (w/v), 1:15 (w/v) and 1:20 (w/v)). Response Surface Methodology (RSM) technique for optimum condition determination was used. Results showed that the difference in experimental conditions affects the content of soluble fiber, insoluble fiber, and total fiber produced by optimization analysis using the DX11.0® Program with RSM-Central Composite Design (CCD). In conclusion, Bisma variety, solvent of methanol, concentration of 80% solvent and ratio of (1:20) was selected as the optimum condition of which resulted in soluble fiber content of 0.85%, insoluble fiber of 0.60% and total fiber of 1.45%.