Study on Ethanol Production from Sweet Sorghum Straw

2013 ◽  
Vol 724-725 ◽  
pp. 423-426
Author(s):  
Qing Sun ◽  
Shu He Huang ◽  
Shi Yan Gu ◽  
Feng Qin Zhao ◽  
Jing Feng Ge ◽  
...  
Keyword(s):  
Experimental Design ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
Optimum Conditions ◽  
Alkali Pretreatment ◽  
Mathematical Equations ◽  
Significant Regression ◽  
The Relationship ◽  
Fermentation Technology ◽  
Sorghum Straw

In this paper, the sweet sorghum straw by alkali pretreatment has been fermented to alcohol with synchronized hydrolysis and fermentation technology. According to the quadratic orthogonal rotating of four factors combination experimental design, the test studied the relationship between the nutrient additive amount about (NH4)2SO4, KH2PO4, MgSO4·7H2O, CaCl2 and alcohol yield, meanwhile this fermentation 1conditions were optimized. By analysis, these factors impacted alcohol yield and the mathematical equations has been established about four factors on the yield of alcohol. The results showed that a significant regression equation was obtained. The optimum conditions for alcohol yield are obtained, (NH4)2SO4 0.09 percent, KH2PO4 0.1 percent, MgSO4·7H2O 0.414 percent, CaCl2 0.385 percent, at this time alcohol yield is 13.07 percent (by weight).

Low temperature alkali pretreatment for improving enzymatic digestibility of sweet sorghum bagasse for ethanol production

2011 ◽  
Vol 102 (7) ◽  
pp. 4793-4799 ◽  
Author(s):  
Long Wu ◽  
Mitsuhiro Arakane ◽  
Masakazu Ike ◽  
Masahisa Wada ◽  
Tomoyuki Takai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
Sweet Sorghum Bagasse ◽  
Alkali Pretreatment ◽  
Enzymatic Digestibility ◽  
Sorghum Bagasse

A demonstration study of ethanol production from sweet sorghum stems with advanced solid state fermentation technology

2013 ◽  
Vol 102 ◽  
pp. 260-265 ◽  
Author(s):  
Shizhong Li ◽  
Guangming Li ◽  
Lei Zhang ◽  
Zhixing Zhou ◽  
Bing Han ◽  
...  
Keyword(s):  
Solid State ◽  
Ethanol Production ◽  
Solid State Fermentation ◽  
Sweet Sorghum ◽  
Fermentation Technology

scholarly journals Statistical Optimization of Alkali Pretreatment to Improve Sugars Recovery from Spent Coffee Grounds and Utilization in Lactic Acid Fermentation

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 494 ◽  
Author(s):  
Kang Hyun Lee ◽  
Ye Won Jang ◽  
Jeongho Lee ◽  
Seunghee Kim ◽  
Chulhwan Park ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Enzymatic Hydrolysis ◽  
Lactic Acid Production ◽  
Complex Loading ◽  
Lactic Acid Fermentation ◽  
Optimum Conditions ◽  
Spent Coffee Grounds ◽  
Alkali Pretreatment ◽  
Acid Fermentation ◽  
Coffee Grounds

Biorefinery, which utilizes carbon-neutral biomass as a resource, is attracting attention as a significant alternative in a modern society confronted with climate change. In this study, spent coffee grounds (SCGs) were used as the feedstock for lactic acid fermentation. In order to improve sugar conversion, alkali pretreatment was optimized by a statistical method, namely response surface methodology (RSM). The optimum conditions for the alkali pretreatment of SCGs were determined as follows: 75 °C, 3% potassium hydroxide (KOH) and a time of 2.8 h. The optimum conditions for enzymatic hydrolysis of pretreated SCGs were determined as follows: enzyme complex loading of 30-unit cellulase, 15-unit cellobiase and 50-unit mannanase per g biomass and a reaction time of 96 h. SCG hydrolysates were used as the carbon source for Lactobacillus cultivation, and the conversions of lactic acid by L. brevis ATCC 8287 and L. parabuchneri ATCC 49374 were 40.1% and 55.8%, respectively. Finally, the maximum lactic acid production by L. parabuchneri ATCC 49374 was estimated to be 101.2 g based on 1000 g of SCGs through the optimization of alkali pretreatment and enzymatic hydrolysis.

Structural modification of pine and poplar wood by alkali pretreatment to improve ethanol production

2020 ◽  
Vol 152 ◽  
pp. 112506 ◽  
Author(s):  
Mohammad Saber Bay ◽  
Keikhosro Karimi ◽  
Mohsen Nasr Esfahany ◽  
Rajeev Kumar
Keyword(s):  
Ethanol Production ◽  
Structural Modification ◽  
Poplar Wood ◽  
Alkali Pretreatment

scholarly journals An economic analysis of sweet sorghum cultivation for ethanol production in North China

GCB Bioenergy ◽  
2014 ◽  
Vol 7 (5) ◽  
pp. 1176-1184 ◽  
Author(s):  
Huihui Liu ◽  
Lantian Ren ◽  
Huub Spiertz ◽  
Yongbin Zhu ◽  
Guang Hui Xie
Keyword(s):  
Economic Analysis ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
North China

Derivation Mathematical Equations for Future Calculation of Potential Evapotranspiration in Iraq, A Review of Application of Thornthwaite Evapotranspiration

2019 ◽  
Vol 60 (5) ◽  
pp. 1037-1048
Author(s):  
Hussein Ilaibi Zamil Al-Sudani
Keyword(s):  
Water Balance ◽  
Potential Evapotranspiration ◽  
Coefficient Of Determination ◽  
Research Review ◽  
Climate Conditions ◽  
Average Temperature ◽  
Mean Temperature ◽  
Mathematical Equations ◽  
Two Parameters ◽  
The Relationship

     In any natural area or water body, evapotranspiration is one of the important outcomes in the water balance equation. As a significant method and depending on monthly average temperature, estimating of potential Evapotranspiration depending on Thornthwaite method was adopted in this research review. Estimate and discuss evapotranspiration by using Thornthwaite method is the main objectives of this research review with considerable details as well as compute potential evapotranspiration based on climatologically data obtained in Iraq. Temperature - evapotranspiration relationship can be estimated between those two parameters to reduce cost and time and facilitate calculation of water balance in lakes, river, and hydrogeological basins. The relationship was obtained using Thornthwaite method in Iraq by dividing the area into seven sectors according to geographic latitude. Each sector has multi meteorological stations where thirty two stations were used with different periods of records. A mathematical relationship was obtained between mean temperature and corrected potential evapotranspiration with (97.45) to (99.84) coefficient of determination. The mean temperature has a decreasing pattern from southern east towards northern west of Iraq affected by Mediterranean Sea climate conditions, while corrected potential evapotranspiration has the opposite direction regarding increased value because of a direct relationship with temperature.

Acetic Acid-Tolerant Native Yeast Pichia kudriavzevii ITV-S42 Isolated from Sweet Sorghum Juice for Ethanol Production

Sugar Tech ◽  
2021 ◽  
Author(s):  
L. E. Díaz-Nava ◽  
M. G. Aguilar-Uscanga ◽  
B. Ortiz-Muñiz ◽  
N. Montes-García ◽  
J. M. Domínguez ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
Pichia Kudriavzevii ◽  
Sweet Sorghum Juice ◽  
Acid Tolerant
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