Bioethanol Production From Rice- and Wheat Straw: An Overview

Swain, Manas R.; Singh, Ajit Kumar; Sharma, Ajay Kumar; Tuli, Deepak K.

doi:10.1016/b978-0-12-813766-6.00011-4

Cited by 61 publications

(28 citation statements)

References 96 publications

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“…However, the biochemical properties of ligno-cellulosic materials, as straw, make it suitable for further industrial processing. For instance, Fang and Shen [8] reported the suitability of straw for paper and paperboard production, Hýsek et al [9] highlighted the possibility to exploit cereal residues for composite material production, while Swain et al [10] investigated the hydrolyzation of cellulose and the hemicellulose of straw into fermentable sugars, which are particularly attractive for bioethanol production industries. Recently, it has been found that winter wheat straw can be returned to soil as biochar to enhance the yield in corn and peanut cultivation [11].…”

Section: Frameworkmentioning

confidence: 99%

Comparison between Two Strategies for the Collection of Wheat Residue after Mechanical Harvesting: Performance and Cost Analysis

et al. 2020

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The growing population worldwide will create the demand for higher cereal production, in order to meet the food need of both humans and animals in the future. Consequently, the quantity of crop by-products produced by cereal cropping will increase accordingly, providing a good opportunity for fostering the development of the sustainable supply chain of renewable solid fuels and natural feedstock for animal farming. The conventional machineries used in wheat harvesting do not guarantee the possibility to collect the chaff as additional residue to the straw. The present study investigated the possibility to equip a conventional combine with a specific device, already available on the market, in order to collect the chaff either separately (onto a trailer), or together with the straw (baled). The total residual biomass increased by 0.84 t·ha−1 and 0.80 t·ha−1 respectively, without negatively affecting the performance of the combine when the chaff was discharged on the swath. Farmers can benefit economically from the extra biomass collected, although a proper sizing of the machine chain is fundamental to avoid by-product losses and lower revenue.

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Section: Frameworkmentioning

confidence: 99%

Comparison between Two Strategies for the Collection of Wheat Residue after Mechanical Harvesting: Performance and Cost Analysis

et al. 2020

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“…They mentioned that the high ash and silica content in rice straw made it an inferior feedstock for bioethanol production. Swain et al [75] used rice straw and wheat straw for bioethanol production and found some challenges, such as the lignin, ash, and silica content of rice straw, which required an appropriate pretreatment process. However, other researchers found that ethanol production from rice straw could be achieved up to 83.1% [76].…”

Section: Fermentationmentioning

confidence: 99%

Potential of Rice Industry Biomass as a Renewable Energy Source

et al. 2019

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Fossil fuel depletion, along with its ever-increasing price and detrimental impact on the environment, has urged researchers to look for alternative renewable energy. Of all the options available, biomass presents a very reliable source due to its never-ending supply. As research on various biomasses has grown in recent years, waste from these biomasses has also increased, and it is now time to shift the focus to utilizing these wastes for energy. The current waste management system mainly focuses on open burning and soil incorporation as it is cost-effective; however, these affect the environment. There must be an alternative way, such as to use it for power generation. Rice straw and rice husk are examples of such potential biomass waste. Rice is the main food source for the world, mostly in Asian regions, as most people consume rice daily. This paper reviews factors that impact the implementation of rice-straw-based power plants. Ash content and moisture content are important properties that govern combustion, and these vary with location. Logistical improvements are required to reduce the transport cost of rice husk and rice straw, which is higher than the transportation cost of coal.

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“…Xylanases have a great potential for the bioconversion of plant waste material into bioethanol and other products [ 44 ]. The criteria used in this work for xylanase selection were enzyme compatibility with conditions of alkaline pH and high temperature widely used in the pretreatment of plant material.…”

Section: Discussionmentioning

confidence: 99%

“…Currently, rice straw is an agricultural waste that generates considerable environmental problems for its elimination. However, it can be a suitable raw material for bioethanol production [ 44 , 45 ]. Treatment with enzymes Xyn5, Xyn8 and hybrids Xyn5–CBM2 and Xyn5–CBM9 yielded xylose and oligoxylosides from the rice straw.…”

Section: Discussionmentioning

confidence: 99%

In silico screening and experimental analysis of family GH11 xylanases for applications under conditions of alkaline pH and high temperature

Talens-Perales

Sánchez-Torres

Marín-Navarro

et al. 2020

Biotechnol Biofuels

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Background Xylanases are one of the most extensively used enzymes for biomass digestion. However, in many instances, their use is limited by poor performance under the conditions of pH and temperature required by the industry. Therefore, the search for xylanases able to function efficiently at alkaline pH and high temperature is an important objective for different processes that use lignocellulosic substrates, such as the production of paper pulp and biofuels. Results A comprehensive in silico analysis of family GH11 sequences from the CAZY database allowed their phylogenetic classification in a radial cladogram in which sequences of known or presumptive thermophilic and alkalophilic xylanases appeared in three clusters. Eight sequences from these clusters were selected for experimental analysis. The coding DNA was synthesized, cloned and the enzymes were produced in E. coli. Some of these showed high xylanolytic activity at pH values > 8.0 and temperature > 80 °C. The best enzymes corresponding to sequences from Dictyoglomus thermophilum (Xyn5) and Thermobifida fusca (Xyn8). The addition of a carbohydrate-binding module (CBM9) to Xyn5 increased 4 times its activity at 90 °C and pH > 9.0. The combination of Xyn5 and Xyn8 was proved to be efficient for the saccharification of alkali pretreated rice straw, yielding xylose and xylooligosaccharides. Conclusions This study provides a fruitful approach for the selection of enzymes with suitable properties from the information contained in extensive databases. We have characterized two xylanases able to hydrolyze xylan with high efficiency at pH > 8.0 and temperature > 80 °C.

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Bioethanol Production From Rice- and Wheat Straw: An Overview

Cited by 61 publications

References 96 publications

Comparison between Two Strategies for the Collection of Wheat Residue after Mechanical Harvesting: Performance and Cost Analysis

Comparison between Two Strategies for the Collection of Wheat Residue after Mechanical Harvesting: Performance and Cost Analysis

Potential of Rice Industry Biomass as a Renewable Energy Source

In silico screening and experimental analysis of family GH11 xylanases for applications under conditions of alkaline pH and high temperature

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