scholarly journals Optimization of Acid Hydrolysis of Cassava Rhizome into Fermentable Sugars for Bioethanol Production Using Response Surface Methodology

2017 ◽  
Vol 33 (5) ◽  
pp. 2507-2517 ◽  
Author(s):  
Ria Dwi Yunita ◽  
Hardoko Insan Qudus ◽  
Sutopo Hadi
Keyword(s):  
Response Surface Methodology ◽  
Acid Hydrolysis ◽  
Response Surface ◽  
Fermentable Sugars ◽  
Bioethanol Production ◽  
Hydrolysis Of

Investigation on Acid Hydrolysis of Inulin: A Response Surface Methodology Approach

2009 ◽  
Vol 5 (3) ◽  
Author(s):  
Ebrahim Eskandari Nasab ◽  
Mehran Habibi-Rezaei ◽  
Afshin Khaki ◽  
Mohammad Balvardi
Keyword(s):  
Response Surface Methodology ◽  
Acid Hydrolysis ◽  
Response Surface ◽  
Reducing Sugars ◽  
Experimental Program ◽  
Central Composite Rotatable Design ◽  
Alkaline Ph ◽  
Inulin Hydrolysis ◽  
Hydrolysis Of ◽  
Central Composite

In this study, the acid hydrolysis of inulin was investigated as a function of three variables: pH, temperature and time. Inulin hydrolysis was detected by measurement of reducing sugars, using Dinitro Salicylic acid (DNS) method. The central composite rotatable design (CCRD) was applied to design an experimental program to model the effects of acidic and alkaline pH on the inulin hydrolysis. Additionally, response surface methodology (RSM) was utilized for data analysis. The statistical analysis of the results confirmed that pH, temperature and time are significant variables at acidic pH, whereas at alkaline pH, these variables are insignificant. The maximum amount of inulin hydrolysis obtained at the pH < 2, temperature > 90°C and the time of 1 hrs.

Optimization Studies on Acid Hydrolysis of Pretreated Oil Palm Empty Fruit Bunch for Production of Xylose by Application of Response Surface Methodology

2013 ◽  
Vol 699 ◽  
pp. 77-82 ◽  
Author(s):  
S. Duangwang ◽  
C. Sangwichien
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Acid Hydrolysis ◽  
Response Surface ◽  
Reaction Temperature ◽  
Oil Palm ◽  
Temperature Reaction ◽  
Empty Fruit Bunch ◽  
H2so4 Concentration ◽  
Hydrolysis Of

Oil palm empty fruit bunch is a lignocellulosic material from palm oil plantations. It is a potential source of xylose which can be used as a raw material for production of xylitol. Using of lignocellulosic waste for bioconversion to fuels and chemicals is justifiable as these materials are low cost, renewable and widespread sources of sugars. The objective of the present study was to determine the effect of H2SO4 concentration, reaction temperature and reaction time for acid hydrolysis of pretreated OPEFB, pretreated OPEFB with reaction temperature, reaction time and NaOH concentration were 130 °C, 40 min and 15% (w/v), respectively to achieve high xylose yield. Batch reactions were carried out under various reaction temperature, reaction time and H2SO4 concentration. Response Surface Methodology (RSM) was followed to optimize acid hydrolysis in order to obtain high yield of xylose. The optimum reaction temperature, reaction time and H2SO4 concentration were found to be 140 °C, 90 min and 7% (w/v), respectively. The maximum value of xylose was obtained 56.39 g/l by using the above condition. The best result of xylose yield obtained was 126%.

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