Potential Thai grasses for bioethanol production

Banka, Alison; Komolwanich, Tidarat; Wongkasemjit, Sujitra

doi:10.1007/s10570-014-0501-2

Cited by 19 publications

(14 citation statements)

References 35 publications

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“…Hemicellulose on the other hand, consists of linear and highly branched mixture of pentoses (xylose and arabinose) and hexoses (glucose, galactose, and mannose). Lignin is a highly branched polyphenolic polymer, which gives stability to biomass structure [12]. Cellulose and hemicellulose, the major substrates for bioethanol production, form the main components of the total dry weight of lignocellulosic biomass [7].…”

Section: Lignocellulosic Biomass From Weedy Plants: Chemical Compositmentioning

confidence: 99%

“…It has been reported as a potential cheap and eco-friendly feedstock for bioethanol production in Pakistan [19]. Pennisetum purpureum, commonly known as Napier grass or elephant grass, Vetiveria zizanioides also known as vetiver grass, Digitaria decumbens, Paspalum atratum, Cynodon sp., and Pennisetum polystachyon are all weedy species found in Asia that have been studied and proposed as feedstock for bioethanol production [12].…”

Section: Lignocellulosic Biomass From Weedy Plants: Chemical Compositmentioning

confidence: 99%

“…It helps to break the bond between lignin and hemicellulose, hence destroying the protective cover of cellulose. It also helps to decrease cellulose crystallinity making it more susceptible to enzymatic hydrolysis and fermentation [12]. Different pretreatment methods can be used on various types of weed biomass for bioethanol production.…”

Section: Pretreatment Of Weed Biomassmentioning

confidence: 99%

“…These processes help to increase the porosity and surface area of biomass to enhance its conversion to bioethanol [9]. Mechanical operations are usually carried out as a preparatory step during the conversion process [12]. Other methods including different kinds of irradiation and ultrasonic pretreatment have been developed to physically enhance accessibility to cellulose during the conversion process.…”

Section: Physical Pretreatmentmentioning

confidence: 99%

“…Pretreatment of lignocellulosic biomass is followed by acid or enzymatic hydrolysis to break down cellulose and sometimes hemicellulose into fermentable sugars such as glucose and xylose [12]. Enzymatic hydrolysis is however eco-friendly and preferred to the nonecofriendly harsh acid hydrolysis [33].…”

Section: Enzymatic Hydrolysismentioning

confidence: 99%

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Potential of Weed Biomass for Bioethanol Production

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2019

Fuel Ethanol Production From Sugarcane

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Lignocellulosic biomass from weedy plants represents a potential alternative feedstock for economic production of bioethanol. Large numbers of weedy plant species are growing all over the world. Characteristics such as high dry matter yield, low water and nutrient requirements for growth, and cellulose contents make weedy plants very attractive as feedstock for bioethanol production. However, like other lignocellulosic feedstock, the complex structure presents resistance and recalcitrance to processes of conversion to bioethanol. Several weedy plants have been studied to determine their physical characteristics and suitability for bioethanol production. Different conversion techniques have been employed to increase monomer sugars and hence bioethanol yield. This chapter discusses processes and current research activities in bioconversion of weed biomass to bioethanol.

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Section: Lignocellulosic Biomass From Weedy Plants: Chemical Compositmentioning

confidence: 99%

Section: Lignocellulosic Biomass From Weedy Plants: Chemical Compositmentioning

confidence: 99%

Section: Pretreatment Of Weed Biomassmentioning

confidence: 99%

Section: Physical Pretreatmentmentioning

confidence: 99%

Section: Enzymatic Hydrolysismentioning

confidence: 99%

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Potential of Weed Biomass for Bioethanol Production

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2019

Fuel Ethanol Production From Sugarcane

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Evaluating the Role of Ultrasonication‐Assisted Alkali Pretreatment and Enzymatic Hydrolysis on Cellwall Polysaccharides of Pennisetum Grass Varieties as Potential Biofuel Feedstock

et al. 2019

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Production of renewable fuel like bioethanol from plant biomass and agro wastes will be the future energy source to combat the depletion of fossil fuels. The first detailed profile of the non‐cellulosic cell wall polysaccharides of native, ultrasonication assisted alkaline (NaOH) pre‐treated and enzyme hydrolysed Pennesitum grass varieties viz. hybrid Napier grass and denanath grass, were identified using glycome profiling. The best pre‐treatment conditions resulted in 89.3% and 86.7% delignification of denanath grass (DG) and hybrid Napier grass (HNG) respectively. In the same conditions, 227.2 mg/g and 242.8 mg/g of total reducing sugar was achieved for DG and HNG respectively. Comparative assessment of a new enzyme i. e. Palkonal MBW with the conventional combination of Celluclast 1.5 L+ xylanase was undertaken. The amounts of glucose and xylose released with Palkonal MBW saccharified DG and HNG were 662.0 mg/g and 431.2 mg/g, which were significantly higher as compared to the conventional enzyme cocktail. The glycome profiling results showed that pectic arabinoxylan and arabinogalactan backbones were significantly less in DG samples and they do play a major role in enhancing enzymatic hydrolysis. These reports can provide a good insight in designing potential perennial feedstocks for bioethanol production in bio refinery concepts. Furthermore, the underutilised DG variety may also be exploited owing to its promising cell wall characteristics that can produce higher bioethanol yields.

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