Integrated utilization of algal biomass and corn stover for biofuel production

Yue, Zhengbo; Ma, Ding; Peng, Shuchuan; Zhao, Xiang Yan; Chen, Tianhu; Wang, Jin

doi:10.1016/j.fuel.2015.11.079

Cited by 15 publications

(6 citation statements)

References 18 publications

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“…37 In addition, some studies have confirmed that the soluble calcium ions contained in the fermentation substrate can occupy specific surface functional groups of lignin, preventing extracellular enzymes to adsorb onto lignin, increasing the efficiency and stability of the anaerobic fermentation system. 38,39 The lower Ca 2+ content in bituminous coal C caused more extracellular enzymes to adsorb on the surface of lignin, decreasing the bioavailability of extracellular enzymes. This is one of the reasons why the yield of biomethane and the content of metabolic enzymes from CC-2 are lower than those of other experimental groups.…”

Section: Fatty Acidmentioning

confidence: 99%

Biochemical Process and Microbial Evolution in the Conversion of Corn Straw Combined with Coal to Biogas

Zhang

Wang²,

Guo

et al. 2022

ACS Omega

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The combined anaerobic fermentation of coal and straw can increase the production of biogas. To explore the mechanism of adding corn straw to increase methane production, coal with different metamorphic degrees and corn straw were collected for biogas production simulation experiments under different substrate ratios. The changes in liquid products, the structure of lignocellulose in corn straw, and microbial evolution were monitored. The results showed that the combined fermentation of bituminous coal A with corn straw and bituminous coal C with corn straw at a mass ratio of 2:1 each ((AC-2) and (CC-2)) and that of bituminous coal B and corn straw at a mass ratio of 3:1 (BC-3) had the best gas production, and methane yields reached 17.28, 12.51, and 14.88 mL/g, respectively. The fermentation liquid had organic matter with more types and higher contents during the early and peak stages of gas production, and fewer types of organic matter were detected in the terminal stage. The degradation of lignocelluloses in the corn straw of AC-2 was higher. With the increase in fermentation time, the carbohydrates in the fermentation system increased and the degradation rate of cellulose decreased gradually. The abundance of genes related to nitrate reduction gradually increased, while that of sulfate reduction was on the contrary. Bacteria in the cofermentation system mainly metabolized carbohydrates. During cofermentation with high metamorphic coal, corn straw would be preferentially degraded. The structure of the archaea community changed from Methanosarcina and Methanothrix to Methanobacterium .

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Section: Fatty Acidmentioning

confidence: 99%

Biochemical Process and Microbial Evolution in the Conversion of Corn Straw Combined with Coal to Biogas

Zhang

Wang²,

Guo

et al. 2022

ACS Omega

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“…There are commonly known processes such as anaerobic digestion (Golecha and Gan, 2016; Mancini et al, 2018) and fermentation (Ji et al, 2014;Reichardt et al, 2009) that can be the improvement done. Other processes such as gasification, pyrolysis (Catto et al, 2010;Lim et al, 2012) or chemical treatments (Horax et al, 2017;Shen et al, 2012) of biomass which produces gas (Park et al, 2017;Wang et al, 2019), liquid (Yue et al, 2016) or carbon-rich solid materials (Horax et al, 2017;Shen et al, 2012; Wang, Wu and Sun, 2018) through synthesis could be used for the improvements as well.…”

Section: Waste Disposal In Agriculture and The Environmentmentioning

confidence: 99%

Students' Processing of Differently Structured Text Materials Focused on Agricultural Waste Disposal Using Eye-tracking

Mudrychová

Beránková

Horáková

et al. 2021

AOL

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This study was focused on agricultural waste disposal (AWD) textual materials. Two educational texts are compared: designed texts traditionally with no purposeful design and structured knowledge texts, including the textual form of knowledge units. Eye-tracking technology is employed for retrieving the values of critical indicators specifying the way of reading the texts. We analysed users' visual attention and looking behaviour during the reading process. Thirty-three students worked with 45 pieces of educational texts accompanied by a didactic test. Statistical analyses show statistically significant differences neither in any indicator within studying the texts nor in the users' success rate in the didactic test. The users can work with the knowledge structured texts equivalently with the designed texts in the traditional way. The positive effect for AWD is that users can process knowledge structured texts with better results.

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“…Bioethanol has been considered to be an ideal candidate and a clean alternative fuel compared to fossil fuels [11,12]. It can be produced from many different biomass feedstocks, like date syrup [13], sugar cane, or corn starch (firstgeneration ethanol, 1G) [14,15]. However, due to the competition with feed production, the use of these resources for bioethanol production is limited.…”

Section: Introductionmentioning

confidence: 99%

Green Macroalgae Hydrolysate for Biofuel Production: Potential of Ulva rigida

Sayed,

Cabrol,

Salma

et al. 2024

Applied Microbiology

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In this study, the green macroalgae Ulva rigida, which contains 34.9% carbohydrates, underwent treatment with commercial hydrolytic enzymes. This treatment yielded a hydrolysate that contained 23 ± 0.6 g·L−1 of glucose, which was subsequently fermented with Saccharomyces cerevisiae. The fermentation process resulted in an ethanol concentration of 9.55 ± 0.20 g·L−1. The optimal conditions for ethanol production by S. cerevisiae were identified as follows: non-sterilized conditions, an absence of enrichment, and using an inoculum size of 118 mg·L−1. Under these conditions, the fermentation of the green macroalgal hydrolysate achieved a remarkable conversion efficiency of 80.78%. The ethanol o/t ratio, namely the ratios of the experimental to theoretical ethanol produced, for Scheffersomyces stipitis, Candida guilliermondii, Kluyveromyces marxianus, and S. cerevisiae after 48 h of fermentation were 52.25, 63.20, 70.49, and 82.87%, respectively. Furthermore, S. cerevisiae exhibited the best outcomes in terms of ethanol production (9.35 g·L−1) and conversion efficiency (80.78%) after 24 h (optimal time) of fermentation.

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Integrated utilization of algal biomass and corn stover for biofuel production

Cited by 15 publications

References 18 publications

Biochemical Process and Microbial Evolution in the Conversion of Corn Straw Combined with Coal to Biogas

Biochemical Process and Microbial Evolution in the Conversion of Corn Straw Combined with Coal to Biogas

Students' Processing of Differently Structured Text Materials Focused on Agricultural Waste Disposal Using Eye-tracking

Green Macroalgae Hydrolysate for Biofuel Production: Potential of Ulva rigida

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