Kallar grass(Leptochloa fusca L. Kunth)as a feedstock for ethanol fermentation with the aid of response surface methodology

2017 ◽  
Vol 37 (1) ◽  
pp. 569-576 ◽  
Author(s):  
Ambreen Gul ◽  
Muhammad Irfan ◽  
Muhammad Nadeem ◽  
Quratulain Syed ◽  
Ikram ul Haq
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ethanol Fermentation ◽  
Leptochloa Fusca ◽  
Kallar Grass

Optimizing Clarification of Pineapple Peel

2014 ◽  
Vol 941-944 ◽  
pp. 1060-1064
Author(s):  
Ugsornphak Tengrang ◽  
Sininart Chongkhong
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Glucose Concentration ◽  
Ethanol Fermentation ◽  
Ph Value ◽  
Alpha Amylase ◽  
Glucose Content ◽  
Pineapple Peel

Alpha-amylase is a potentially useful enzyme for the pretreatment and pre-hydrolysis (clarification) of pineapple peel. The clarified products contain sufficient glucose content for ethanol fermentation. The influences of quantity of the peel to water (10-16 %w: weight of peel to weight of water), alpha-amylase amount (100-240 U/g: U of amylase to g of peel), pH value (5.5-7.0), temperature (70-100oC) and time (60-240 min) were investigated by RSM (Response surface methodology). To obtain 31.8 g/L of the highest glucose concentration, the clarification is to be performed by 16 %w peel to water, 188 U amylase/g, 5.5 pH at 70oC for 240 min.

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