scholarly journals Catalytic Transformation of Fructose and Sucrose to HMF with Proline-Derived Ionic Liquids under Mild Conditions

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hu Li ◽  
Song Yang
Keyword(s):  
Response Surface Methodology ◽  
Ionic Liquids ◽  
Reaction Mechanism ◽  
Response Surface ◽  
Catalytic Transformation ◽  
Dehydration Process ◽  
Mild Conditions ◽  
Water Response ◽  
Fructose Dehydration

L-Proline derived ionic liquids (ILs) used as both solvent and catalyst were efficient for transformation of fructose and sucrose to 5-hydroxymethylfurfural (HMF) in the presence of water. Response surface methodology (RSM) was employed to optimize fructose dehydration process, and a maximum HMF yield of 73.6% could be obtained at 90°C after 50 min. The recycling of the IL exhibited an almost constant activity during five successive trials, and a possible reaction mechanism for the dehydration of fructose to HMF was proposed.

Optimization of Osmotic Dehydration of Radish in Salt Solution Using Response Surface Methodology

2009 ◽  
Vol 5 (3) ◽  
Author(s):  
Manivannan Petchi ◽  
Rajasimman Manivasagan
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Salt Solution ◽  
Water Loss ◽  
Weight Reduction ◽  
Osmotic Dehydration ◽  
Dehydration Process ◽  
Initial Sample ◽  
Solid Gain ◽  
Sample Ratio

Response surface methodology was used to determine the optimum processing conditions that yield maximum water loss and weight reduction and minimum solid gain during osmotic dehydration of radish in salt solution. The experiments were conducted according to Central Composite Design (CCD). The independent process variables for osmotic dehydration process were temperature (25 – 45°C), processing time (30 -150 minutes), salt concentrations (5 - 25% w/w) and solution to sample ratio (5:1 – 25:1). The osmotic dehydration process was optimized for water loss, solid gain, and weight reduction. The optimum conditions were found to be: temperature – 36°C, immersion time - 95 min, salt concentration – 25% and solution to sample ratio 15:1. At this optimum point, water loss, solid gain and weight reduction were found to be 34.5 (g/100 g initial sample), 2.2 (g/100 g initial sample) and 32.1 (g/100 g initial sample), respectively.

Optimization of Carrot Dehydration Process using Response Surface Methodology

1989 ◽  
Vol 54 (3) ◽  
pp. 714-719 ◽  
Author(s):  
G.S. MUDAHAR ◽  
R.T. TOLEDO ◽  
J.D. FLOROS ◽  
J.J. JEN
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Dehydration Process

Impacts of ionic liquids on enzymatic synthesis of glucose laurate and optimization with superior productivity by response surface methodology

2015 ◽  
Vol 50 (11) ◽  
pp. 1852-1858 ◽  
Author(s):  
Xiao-Sheng Lin ◽  
Qing Wen ◽  
Ze-Lin Huang ◽  
Yu-Zheng Cai ◽  
Peter J. Halling ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Ionic Liquids ◽  
Response Surface ◽  
Enzymatic Synthesis
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