Effect of 5-HMF and furfural additives on bio-hydrogen production by photo-fermentation from giant reed

Yang, Jiabin; Jiang, Danping; Shui, Xuenan; Lei, Tingzhou; Zhang, Huan; Zhang, Zhiping; Zhang, Xueting; Zhu, Shengnan; Zhang, Quanguo

doi:10.1016/j.biortech.2022.126743

Cited by 13 publications

(4 citation statements)

References 41 publications

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“…With the increase of hydrogen production, the nutrients in fermentation liquid decreased. And harmful substances such as small molecular acids produced by the metabolism of photosynthetic bacteria inhibited the activity of bacteria, resulting in a rapid decrease in hydrogen production rate (Yang et al 2022). The hydrogen production rates of the acid DESs pretreated corn stover were also relatively high, which were 27.4 mL/h (ChCl/Oac) and 22.0 mL/h (ChCl/Fac), respectively.…”

Section: Fig 2 Effects Of Dess Pretreatment On (A) Cumulative Hydroge...mentioning

confidence: 99%

“…4a, the pH of the fermentation liquid (ChCl/Fac) was 5.31 at 12 h, which was lower than that of the ChCl/Oac, resulting in a large number of small molecular fatty acids in the fermentation liquid (ChCl/Fac pretreated). This inhibited the hydrogen production capacity of photosynthetic bacteria (Yang et al 2022). The concentrations of reducing sugar in the fermentation liquid pretreated with neutral and alkaline DESs were all lower than 1.0 g/L, because the two types DESs not only dissolved lignin, but they also partially dissolved the cellulose and hemicellulose in the stover, resulting in low cellulolytic efficiency and low reducing sugar content in the fermentation liquid (Li et al 2020).…”

Section: Changes Of Reducing Sugar In Pfhpmentioning

confidence: 99%

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Comparative analysis of photo-fermentation hydrogen production from pretreated corn stover by deep eutectic solvents

Li,

Lu,

Liu

et al. 2024

BioRes

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To compare the pretreatment effect of deep eutectic solvents (DESs) on corn stover, three types of DESs (acid, neutral, and alkaline) were used to pretreat corn stover, and their effects on lignin removal were investigated. Then the performance of photo-fermentation hydrogen production (PFHP) using DESs pretreated corn stover was compared and analyzed. The results showed that acid DESs had the best lignin removal efficiency, and the lignin removal percentages of choline chloride/formic acid (ChCl/Fac) and choline chloride/oxalate (ChCl/Oac) were 64.7% and 65.6%, respectively. The alkaline DESs had the second highest removal of lignin, while the neutral DESs had a poor effect on lignin removal. The comparison of hydrogen production indicated that the corn stover pretreated with ChCl/Oac had the best hydrogen production effect. In conclusion, the DESs pretreatment can obviously remove the lignin in corn stover, and then improve the hydrogen production capacity and efficiency of photo-fermentation, which provides a potential pretreatment method for the efficient utilization of straw biomass.

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Section: Fig 2 Effects Of Dess Pretreatment On (A) Cumulative Hydroge...mentioning

confidence: 99%

Section: Changes Of Reducing Sugar In Pfhpmentioning

confidence: 99%

Comparative analysis of photo-fermentation hydrogen production from pretreated corn stover by deep eutectic solvents

Li,

Lu,

Liu

et al. 2024

BioRes

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“…These chemical treatments generate a series of streams that must be subjected to further treatment prior to their disposal. In addition, they also lead to the appearance of several by-products (FUR, 5-HMF, formic acid) that can be inconvenient for subsequent processes such as those related to enzymatic hydrolysis [18][19][20][21][22][23] very sensitive to those compounds.…”

Section: Introductionmentioning

confidence: 99%

“…by-products (FUR, 5-HMF, formic acid) that can be inconvenient for subsequent processes such as those related to enzymatic hydrolysis [18][19][20][21][22][23] very sensitive to those compounds. Furthermore, the pretreatment stages constitute about 40% of the overall cost of production of bioethanol [24].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Mechanochemical Pretreatment of Lignocellulosic Biomass

et al. 2022

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Biorefineries are industrial facilities where biomass is converted into chemicals, fuels and energy. The use of lignocellulose as raw material implies the development of pretreatments to reduce its recalcitrant character prior to the processes that lead to the synthesis of the products of interest. These treatments are based on physico-chemical processes where it is necessary to use acids, bases, oxidants, and high pressure and temperature conditions that lead to the depolymerization of lignocellulose at the expense of generating a series of streams that must be treated later or to the production of by-products. In recent years, mechanochemistry is becoming relevant in the design of processes that help in the depolymerization of lignocellulose. These mechanochemical processes are being used in combination with chemicals and/or enzymes, allowing the use of minor loads of reagents or enzymes. In this review, the advances achieved in the use of mechanochemistry for treating lignocellulosic biomass or cellulose will be presented, with special emphasis on how these mechanochemical processes modify the structure of lignocellulose and help subsequent treatments. It will focus on using ball milling or extrusion, ending with a section dedicated to future work needed to implement these technologies at the industrial level.

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