Overproduction of fungal endo-β-1,4-glucanase leads to characteristic lignocellulose modification for considerably enhanced biomass enzymatic saccharification and bioethanol production in transgenic rice straw

Cellulose ◽  
2019 ◽  
Vol 26 (15) ◽  
pp. 8249-8261 ◽  
Author(s):  
Ying Li ◽  
Haiyan Sun ◽  
Chunfen Fan ◽  
Huizhen Hu ◽  
Leiming Wu ◽  
...  
Keyword(s):  
Rice Straw ◽  
Transgenic Rice ◽  
Enzymatic Saccharification ◽  
Bioethanol Production

Bioethanol Production from Rice Straw in the MAFF Research Project, Japan

2009 ◽  
Vol 1219 ◽  
Author(s):  
Ken Tokuyasu
Keyword(s):  
Heat Treatment ◽  
Saccharomyces Cerevisiae ◽  
Rice Straw ◽  
Enzymatic Saccharification ◽  
Bioethanol Production ◽  
Chemical Pretreatment ◽  
Simple Method ◽  
Herbaceous Biomass ◽  
Free Glucose ◽  
Simultaneous Saccharification

AbstractRice straw is among the most abundant herbaceous biomass, and regarded as the central feedstock for bioethanol production in Japan. We found that significant amounts of soft carbohydrates (SCs), defined as carbohydrates readily recoverable by mere extraction from the biomass or brief enzymatic saccharification, exist in rice straw in the form of free glucose, free fructose, sucrose, starch, and β-1,3-1,4-glucan. Based on the finding, we proposed a simple method for bioethanol production from rice straw samples with SCs, by a heat treatment for sterilization and starch gelatinization, followed by simultaneous saccharification/fermentation with Saccharomyces cerevisiae. This method would offer an efficient process for bioethanol production without the aid of harsh thermo/chemical pretreatment step.

Mild chemical pretreatments are sufficient for bioethanol production in transgenic rice straws overproducing glucosidase

2018 ◽  
Vol 20 (9) ◽  
pp. 2047-2056 ◽  
Author(s):  
Ying Li ◽  
Peng Liu ◽  
Jiangfeng Huang ◽  
Ran Zhang ◽  
Zhen Hu ◽  
...  
Keyword(s):  
Rice Straw ◽  
Transgenic Rice ◽  
Biomass Conversion ◽  
Cost Effective ◽  
Bioethanol Production ◽  
Chemical Pretreatment ◽  
Chemical Pretreatments ◽  
Conversion Technology

A cost-effective biomass conversion technology for high bioethanol production under mild chemical pretreatment in the transgenic rice straw.

Bioethanol production from pretreated whole slurry rice straw by thermophilic co-culture

Fuel ◽  
2021 ◽  
Vol 301 ◽  
pp. 121074
Author(s):  
Nisha Singh ◽  
Ravi P. Gupta ◽  
Suresh K. Puri ◽  
Anshu S. Mathur
Keyword(s):  
Rice Straw ◽  
Bioethanol Production ◽  
Whole Slurry

scholarly journals Diverse Banana Pseudostems and Rachis Are Distinctive for Edible Carbohydrates and Lignocellulose Saccharification towards High Bioethanol Production under Chemical and Liquid Hot Water Pretreatments

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3870
Author(s):  
Jingyang Li ◽  
Fei Liu ◽  
Hua Yu ◽  
Yuqi Li ◽  
Shiguang Zhou ◽  
...  
Keyword(s):  
Soluble Sugars ◽  
Enzymatic Saccharification ◽  
Hot Water ◽  
Biofuel Production ◽  
Bioenergy Crops ◽  
Bioethanol Production ◽  
Factors Affecting ◽  
Liquid Hot Water ◽  
Biomass Processing ◽  
Banana Crops

Banana is a major fruit crop throughout the world with abundant lignocellulose in the pseudostem and rachis residues for biofuel production. In this study, we collected a total of 11 pseudostems and rachis samples that were originally derived from different genetic types and ecological locations of banana crops and then examined largely varied edible carbohydrates (soluble sugars, starch) and lignocellulose compositions. By performing chemical (H2SO4, NaOH) and liquid hot water (LHW) pretreatments, we also found a remarkable variation in biomass enzymatic saccharification and bioethanol production among all banana samples examined. Consequently, this study identified a desirable banana (Refen1, subgroup Pisang Awak) crop containing large amounts of edible carbohydrates and completely digestible lignocellulose, which could be combined to achieve the highest bioethanol yields of 31–38% (% dry matter), compared with previously reported ones in other bioenergy crops. Chemical analysis further indicated that the cellulose CrI and lignin G-monomer should be two major recalcitrant factors affecting biomass enzymatic saccharification in banana pseudostems and rachis. Therefore, this study not only examined rich edible carbohydrates for food in the banana pseudostems but also detected digestible lignocellulose for bioethanol production in rachis tissue, providing a strategy applicable for genetic breeding and biomass processing in banana crops.

Enzymatic saccharification of agar waste from Gracilaria verrucosa and Gelidium latifolium for bioethanol production

2017 ◽  
Vol 29 (6) ◽  
pp. 3201-3209 ◽  
Author(s):  
Maria Dyah Nur Meinita ◽  
Bintang Marhaeni ◽  
Yong-Ki Hong ◽  
Gwi-Taek Jeong
Keyword(s):  
Enzymatic Saccharification ◽  
Gracilaria Verrucosa ◽  
Bioethanol Production ◽  
Gelidium Latifolium
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