Comprehensive utilization of glycerol from sugarcane bagasse pretreatment to fermentation

Jiang, Liqun; Zheng, Anqing; Zhao, Zengli; He, Fang; Li, Haibin

doi:10.1016/j.biortech.2015.07.078

Cited by 20 publications

(6 citation statements)

References 26 publications

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“…The use of agricultural residue bagasse is attractive due to its sugar-rich hydrolysate. If the abundant bagasse can be converted into a growth medium for microbial fermentation to produce BC, high-value products could be made from the agricultural byproducts and effectively reduce the cost of BC production (Li et al 2012;Jiang et al 2015). Vazquez et al (2013) produced bacterial cellulose by G. xylinus using glycerol remaining from grape bagasse as the carbon sources, with the aim of formulating a general, simple and inexpensive medium to produce BC.…”

Section: Introductionmentioning

confidence: 99%

Production of Bacterial Cellulose by Acetobacter xylinum through Utilizing Acetic Acid Hydrolysate of Bagasse as Low-cost Carbon Source

Cheng¹,

Yang²,

Liu³

2016

BioResources

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Bacterial cellulose (BC) is a promising and renewable nanomaterial due to its unique structural features and appealing properties. Intensive study on BC preparation has been mainly focused on biosynthesis by certain bacteria, while the high economic costs of fermentation, especially the carbon sources, remain challenges to its application. In this study, bacterial cellulose was synthesized by Acetobacter xylinum with the acetic acid hydrolysate of bagasse used as carbon source. After the bagasse was pretreated by acetic acid, the components in hydrolysate and the removal rate was investigated, and the pretreatment conditions were optimized as follows: temperature of 160 °C, heating time of 60 min, addition of acetic acid of 2.0% (m/m), and solid-to-liquid ratio of 1/5. Prior to Acetobacter xylinum cultivation, the hydrolysate was detoxified by activated carbon. The detoxification process was very efficient for BC production, with a yield up to 2.13 g/L when the dosage of activated carbon was 5% (m/V). Furthermore, the obtained BC was characterized by scanning electron microscopy (SEM), which showed that the ribbons width of BC was between 30 and 80 nm. X-ray patterns showed the crystallinity value was 74.6 % and the crystallinity index (CI%) was 66.5 %, which also evidenced the presence of peaks characteristic of Cellulose I polymorph. In conclusion, it is feasible to produce BC from bagasse hydrolysate. This model of waste recycling could aid in the development of sustainable strategies.

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Section: Introductionmentioning

confidence: 99%

Production of Bacterial Cellulose by Acetobacter xylinum through Utilizing Acetic Acid Hydrolysate of Bagasse as Low-cost Carbon Source

Cheng¹,

Yang²,

Liu³

2016

BioResources

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“…The chemical composition and distribution of bio-oils are altered by demineralization [ 47 ]. Figure 4 a shows that the bio-oils from raw material samples were mainly composed of sugars, phenols, ketones and hydrocarbons.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Demineralization and Pyrolysis Performance of Eucalyptus Hydrothermal Pretreatment

Zhu

Bao

et al. 2022

Polymers

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The preparation of bio-oil through biomass pyrolysis is promoted by different demineralization processes to remove alkali and alkaline earth metal elements (AAEMs). In this study, the hydrothermal pretreatment demineralization was optimized by the response surface method. The pretreatment temperature, time and pH were the response elements, and the total dissolution rates of potassium, calcium and magnesium were the response values. The interactions of response factors for AAEMs removal were analyzed. The interaction between temperature and time was significant. The optimal AAEMs removal process was obtained with a reaction temperature of 172.98 °C, time of 59.77 min, and pH of 3.01. The optimal dissolution rate of AAEMs was 47.59%. The thermal stability of eucalyptus with and without pretreatment was analyzed by TGA. The hydrothermal pretreatment samples exhibit higher thermostability. The composition and distribution of pyrolysis products of different samples were analyzed by Py-GC/MS. The results showed that the content of sugars and high-quality bio-oil (C6, C7, C8 and C9) were 60.74% and 80.99%, respectively, by hydrothermal pretreatment. These results show that the removal of AAEMs through hydrothermal pretreatment not only improves the yield of bio-oil, but also improves the quality of bio-oil and promotes an upgrade in the quality of bio-oil.

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“…Glycerol is also commonly used in alkali‐catalyzed organosolv fractionation processes because the reaction can be performed under atmospheric pressure. By glycerol pretreatment of sugarcane bagasse, the levoglucosan yield can be enhanced significantly. Sodium hydroxide was found to be more effective than lime as a catalyst in the glycerol pretreatment of sugarcane bagasse and in improving saccharification and lignin recovery; however, lime is much cheaper than NaOH.…”

Section: Organosolv Fractionation Under Acidic Conditionsmentioning

confidence: 99%

High value‐added monomer chemicals and functional bio‐based materials derived from polymeric components of lignocellulose by organosolv fractionation

Zhang

Cai

Qin

et al. 2019

Biofuels Bioprod Bioref

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Organosolv fractionation (OF) is a promising method for lignocellulosic biomass biorefining to produce biofuels, biochemicals, and biomaterials. The fractionated polymeric components may be good feedstocks to produce bio‐based materials such as green polymers via chemical or biological conversion. However, related work to specify the bio‐based materials production via organosolv fractionation of lignocellulosic biomass is relatively scarce. In this work we have provided a comprehensive review of typical organosolv fractionation for isolating cellulose, hemicelluloses, and lignin, as well as the high value‐added monomer chemicals and functional materials derived from the fractionated components and their potential applications developed in recent years, primarily including the modified cellulose fibers for polymer materials, cellulose nanocrystals (CNCs), polysaccharide‐derived platform precursors for synthesis of bio‐based polymers, lignin‐derived dispersants, surfactants, carbon materials, and hemicellulose‐derived functional materials, etc. This work suggests that organosolv fractionation of lignocellulosic biomass could be a good entry to biomass refinery for high value‐added and functional materials production. However, there are still many challenges that should be overcome in terms of the fundamental, technical, and economic aspects for the organosolv fractionation process, formation of precursor compounds, synthesis of the bio‐based materials, design of product properties and functions, and the integration of the entire process. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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Comprehensive utilization of glycerol from sugarcane bagasse pretreatment to fermentation

Cited by 20 publications

References 26 publications

Production of Bacterial Cellulose by Acetobacter xylinum through Utilizing Acetic Acid Hydrolysate of Bagasse as Low-cost Carbon Source

Production of Bacterial Cellulose by Acetobacter xylinum through Utilizing Acetic Acid Hydrolysate of Bagasse as Low-cost Carbon Source

Optimization of Demineralization and Pyrolysis Performance of Eucalyptus Hydrothermal Pretreatment

High value‐added monomer chemicals and functional bio‐based materials derived from polymeric components of lignocellulose by organosolv fractionation

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