สืบค้นงานวิจัย
Two-step acid and alkaline ethanolysis/alkaline peroxide fractionation of sugarcane bagasse and rice straw for production of polylactic acid precursor
Sakdaronnarong C. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Two-step acid and alkaline ethanolysis/alkaline peroxide fractionation of sugarcane bagasse and rice straw for production of polylactic acid precursor
ผู้แต่ง / หัวหน้าโครงการ (EN): Sakdaronnarong C.
บทคัดย่อ (EN): Sugarcane bagasse and rice straw were subjected to acid and alkaline ethanolysis and sequential enzymatic hydrolysis to produce glucose for lactic acid production. Influence of physico-chemical treatments using ultrasonic bath and ultrasonic probe was studied compared with mechanical stirring. The results showed that the highest glucose yield with least contamination of xylose was obtained from acid ethanolysis fractionation (5N H2SO4+50%, v/v ethanol) when stirred at 90°C for 4h. Alkaline ethanolysis accomplished high amount of both glucose and xylose released, however it was not favorable substrate for homofermentative lactic acid bacteria. In order to enhance enzymatic hydrolysis of acid ethanolysis fractionated samples, lignin was subsequently removed by the second step alkaline/peroxide delignification. The maximum lactic acid was obtained at 23.6±0.2g/L from Lactobacillus casei fermentation after 72h when hydrolysate from two-step acid hydrolysis and alkaline/peroxide fractionated sugarcane bagasse containing 24.6g/L initial glucose concentration was used as substrate. © 2014 Elsevier B.V.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896807517&doi=10.1016%2fj.bej.2014.02.003&partnerID=40&md5=51658d8cf419b401bff3f1069b20af6c
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Polyesters
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Two-step acid and alkaline ethanolysis/alkaline peroxide fractionation of sugarcane bagasse and rice straw for production of polylactic acid precursor
Sakdaronnarong C.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Candida shehatae and Saccharomyces cerevisiae work synergistically to improve ethanol fermentation from sugarcane bagasse and rice straw hydrolysate in immobilized cell bioreactor Hydrolysis of delignified sugarcane bagasse using hydrothermal technique catalyzed by carbonaceous acid catalysts Sequential organosolv fractionation/hydrolysis of sugarcane bagasse: The coupling use of heterogeneous H 3 PO 4 -activated carbon as acid promoter and hydrolysis catalyst An integrated system for fractionation and hydrolysis of sugarcane bagasse using heterogeneous catalysts in aqueous biphasic system Ionosolv pretreatment of sugarcane bagasse and rice straw assisted by catalytic hydrothermal and microwave heating for biorefining Effect of sugarcane bagasse treatment on gas production and ruminal degradability byusing in vitro gas production technique Successive detection of benzoic acid and total parabens in foodstuffs using mercaptosuccinic acid capped cadmium telluride quantum dots Improved docosahexaenoic acid production in Aurantiochytrium by glucose limited pH-auxostat fed-batch cultivation Analysis of Ascorbic Acid and Isoascorbic Acid in Orange and Guava Fruit Juices Distributed in Thailand by LC-IT-MS/MS Sequential fermentation of hydrogen and methane from steam-exploded sugarcane bagasse hydrolysate
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