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<strong>Sequential acid-autoclave and microwave-alkali pretreatment of rice straw for bioethanol production</strong>

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Title Statement <strong>Sequential acid-autoclave and microwave-alkali pretreatment of rice straw for bioethanol production</strong>
 
Added Entry - Uncontrolled Name Kaur, Jaspreet ; Department of Biochemistry,Punjab Agricultural University,Ludhiana- 141004, Punjab
Taggar, Monica Sachdeva; School of Renewable Energy Engineering, Punjab Agricultural University,Ludhiana- 141004, Punjab
Kocher, Gurvinder Singh; Department of Microbiology,Punjab Agricultural University,Ludhiana- 141004, Punjab
Javed, Mohammed ; Department of Mathematics, Statistics & Physics, Punjab Agricultural University, Ludhiana- 141004, Punjab
 
Uncontrolled Index Term Rice straw; Acid-autoclave; Microwave-alkali; Bioethanol
 
Summary, etc. Two-step acid-autoclave and microwave-alkali pre-treatment process of rice straw have been carried out for bioethanol production. The reaction conditions of both the steps are optimized using Response Surface Methodology. The studies reveal that the optimum conditions for acid-autoclave pretreatment are found to be 1.90 per cent acid concentration, 51.85 min time and 1:17.51 solid:liquid ratio with maximum release of reducing sugars (16.94 g per 100 g) and minimum release of furfurals (0.93 g per 100 g). For second step pretreatment i.e. microwave-alkali, optimized conditions are observed to be 3.75 percent alkali concentration, 9.16 min time and 475W microwave power with minimum lignin content of 2.96 percent in pre-treated straw. Scanning electron micrographs reveal extensive damage of silicified waxy surface and disruption of the cell wall structure of straw after two step pre-treatment process. It has been concluded that sequential pre-treatment of rice straw using acid-autoclave and microwave-alkali process efficiently remove hemicellulose and lignin from straw, thereby increasing accessibility of cellulose to enzymatic hydrolysis for enhanced production of fermentable sugars and bioethanol.
 
Publication, Distribution, Etc. Indian Journal of Chemical Technology (IJCT)
2019-02-07 13:17:33
 
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http://op.niscair.res.in/index.php/IJCT/article/view/15933
 
Data Source Entry Indian Journal of Chemical Technology (IJCT); ##issue.vol## 25, ##issue.no## 5 (2018): Indian Jouranl of Chemical Technolgy
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCT/article/download/15933/47702
http://op.niscair.res.in/index.php/IJCT/article/download/15933/47703
http://op.niscair.res.in/index.php/IJCT/article/download/15933/47704
http://op.niscair.res.in/index.php/IJCT/article/download/15933/47705
http://op.niscair.res.in/index.php/IJCT/article/download/15933/47706