Design and composition of synthetic fungal-bacterial microbial consortia that improve lignocellulolytic enzyme activity

Hu, Jiajun; Xue, Yiyun; Guo, Han; Gao, Min-Tian; Li, Jixiang; Zhang, Shiping; Tsang, Yiu Fai

doi:10.1016/j.biortech.2016.12.058

Cited by 55 publications

(27 citation statements)

References 27 publications

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“…Acremonium enzyme, a kind of cellulase purchased from Meiji Seika Co. (Japan), in dry solid form was added, and the pH was adjusted to 5. Hydrolysis was performed in a shaker incubator at 45 °C and 200 rpm for 48 h [ 21 ]. After hydrolysis, samples were collected and stored prior to analysis of the glucose content.…”

Section: Methodsmentioning

confidence: 99%

Tapping the Bioactivity Potential of Residual Stream from Its Pretreatments May Be a Green Strategy for Low-Cost Bioconversion of Rice Straw

Chen

Wang

Xue

et al. 2018

Appl Biochem Biotechnol

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In this study, it was found that the residual stream from pretreatments of rice straw exhibited high antioxidant activity. Assays based on the Folin–Ciocalteu colorimetric method confirmed that the residual stream contained large amounts of phenolic compounds. Three antioxidant assays were employed to evaluate the bioactivity of the residual stream. Strong linear correlations existed among the release of phenolic compounds, saccharification efficiency, and antioxidant activity. The alkaline pretreatment provided a much greater release of phenolic compounds, especially phenolic acids, compared to the acid pretreatment, and consequently, it had stronger linear correlations than the acid pretreatment. Antibacterial experiments demonstrated the ability of the phenolic compounds in the residual stream to inhibit the growth of microorganisms, indicating the potential of these compounds as antimicrobial agents. To discuss the possibility of the co-production of antimicrobial agents and biofuels/biochemicals, both acid and alkaline pretreatments were optimized using response surface methodology. Under the optimal conditions, 285.7 g glucose could be produced from 1 kg rice straw with the co-production of 3.84 g FA and 6.98 g p-CA after alkaline pretreatment. These results show that the recovery of phenolic compounds from the residual stream could be a green strategy for the low-cost bioconversion of rice straw.Electronic supplementary materialThe online version of this article (10.1007/s12010-018-2751-1) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Tapping the Bioactivity Potential of Residual Stream from Its Pretreatments May Be a Green Strategy for Low-Cost Bioconversion of Rice Straw

Chen

Wang

Xue

et al. 2018

Appl Biochem Biotechnol

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“…Cooperation among the SMC members is crucial to exert additive effect in promoting crop quality. Utilizing the positive interactions between fungi ( Trichoderma reesei ) and bacteria, Hu et al ( 2017 ) devised a synergistic SMC with higher lignocellulolytic enzyme activity. The SMC composed of Enterococcus and Clostridium species degrade wheat straw into hydrogen and butanol in a two-step reaction (Valdez-Vazquez et al, 2015 ).…”

Section: How To Construct the Desired Smc?mentioning

confidence: 99%

Paving the Way From the Lab to the Field: Using Synthetic Microbial Consortia to Produce High-Quality Crops

2018

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“…[1][2][3][4] Development of efficient and costeffective process for biomass conversion to value-added products has attracted extended attention. [5][6][7] GVL, a sustainable liquid for energy and carbon-based chemicals production possesses excellent properties for energy valorization such as low melting (-31 o C), high boiling (207 o C) and open cup flash points (96 o C). It is low toxicity and diffluent with water and many organic solvents which could be used as eco-friendly solvent.…”

Section: Introductionmentioning

confidence: 99%

Water as Hydrogen Source for Highly Efficient Conversion of Biomass-Derived Levulinic Acid into γ-Valerolactone over Raney Ni Catalyst

Ma¹,

Jin²,

Guo³

et al. 2021

Preprint

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Gamma (γ)-valerolactone (GVL) is a promising liquid for energy and carbon-based chemicals. Although many researches regarding the GVL synthesis from carbohydrate biomass, most of them involve the use of noble metals accompanying with the high-purity and high-pressure gaseous hydrogen, existing high cost in large-scale application and safety risk during the transportation and operation process. In this paper, the cheap metal Fe was employed as a reductant for splitting water to produce hydrogen under mild hydrothermal conditions, and commercial Raney Ni was used as a catalyst for in situ hydrogenation of biomass-derived levulinic acid (LA). More than 95% yield of GVL can be attained at 150 oC for 2 h and ~ 90% yield of GVL was also achieved at 100 oC by increasing the reaction time to 5 h. Furthermore, Raney Ni remains the stable catalytic activity after being recycled for 4 times at 150 oC. This work provides a safe and facile process for highly efficient hydrogenation of biomass-derived LA to GVL without precious metals.

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Design and composition of synthetic fungal-bacterial microbial consortia that improve lignocellulolytic enzyme activity

Cited by 55 publications

References 27 publications

Tapping the Bioactivity Potential of Residual Stream from Its Pretreatments May Be a Green Strategy for Low-Cost Bioconversion of Rice Straw

Tapping the Bioactivity Potential of Residual Stream from Its Pretreatments May Be a Green Strategy for Low-Cost Bioconversion of Rice Straw

Paving the Way From the Lab to the Field: Using Synthetic Microbial Consortia to Produce High-Quality Crops

Water as Hydrogen Source for Highly Efficient Conversion of Biomass-Derived Levulinic Acid into γ-Valerolactone over Raney Ni Catalyst

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