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1. Bifunctional and recyclable Dawson-type polyoxometalates catalyze oxidative degradation of lignocellulose to selectively produce phthalates

Author:
Shi, Nan; Liu, Dong; Dang, Falu; Chen, Qingtai; Li, Min; Wen, Fushan
Source:
Bioresource technology 2019 v.273 pp. 677-681
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; catalysts; depolymerization; ingredients; ketones; lignin; lignocellulose; oxidation; phenols; phthalates;     Show all 10 Subjects
Abstract:
... Acid-redox bifunctional Dawson-type polyoxometalates K6P2W18O62 (P2W18) and K10P2W17O61 (P2W17) were introduced as the new-type catalysts in oxidative decomposition of lignocellulose. The lignin and hemicellulose ingredients of lignocellulose could be decomposed by P2W17 to produce diisobutyl phthalate with the selectivity of 75.67% and other aromatic and aliphatic compounds under mild conditions, ...
DOI:
10.1016/j.biortech.2018.11.047

2. Investigation of the degradation of bio-recalcitrance in Apocynum venetum fiber biodegumming

Author:
Gong, Jixian; Zhang, Qiuya; Lou, Jiangfei; Zhang, Tao; Li, Huiqin; Li, Zheng; Li, Qiujin; Zhang, Jianfei
Source:
Journal of natural fibers 2019 v.16 no.1 pp. 1-12
ISSN:
1544-046X
Subject:
hemicellulose,   etc   ; Apocynum; biomass; bioprocessing; degumming; fiber quality; lignin; pollution;     Show all 8 Subjects
Abstract:
... Traditional degumming of bast fibers results in problems such as environmental pollution and inferior fiber quality. For these reasons, biodegumming was considered as a potential process for bast fibers. In biodegumming process, decomposition of noncellulosic components was the pivotal problem. In this manuscript, the bast fiber of Apocynum venetum was processed with combinatorial processing, cont ...
DOI:
10.1080/15440478.2017.1379043

3. Development of bark-based adhesives for plywood: utilization of flavonoid compounds from bark and wood. II

Author:
Matsumae, Tomoyuki; Horito, Masayoshi; Kurushima, Naoko; Yazaki, Yoshikazu
Source:
Journal of wood science 2019 v.65 no.1 pp. 9
ISSN:
1435-0211
Subject:
hemicellulose,   etc   ; Pinus radiata; adhesives; bark; cellulose nanofibers; flavonoids; lignin; plywood; resins; tannins; wood; wood bonding;     Show all 12 Subjects
Abstract:
... Although many conventional adhesives for plywood are formulated with tannins (polyflavanoid compounds) extracted from bark or wood, adhesives using tannin directly without extraction from the bark have also been made. In 2003, the first bark particle (< 63 μm) adhesive was developed from radiata pine bark. In this present study, the quality of the bark adhesive has been improved by fibrillating th ...
DOI:
10.1186/s10086-019-1780-x

4. Recent advances in engineering Corynebacterium glutamicum for utilization of hemicellulosic biomass

Author:
Choi, Jae Woong; Jeon, Eun Jung; Jeong, Ki Jun
Source:
Current opinion in biotechnology 2019 v.57 pp. 17-24
ISSN:
0958-1669
Subject:
hemicellulose,   etc   ; Corynebacterium glutamicum; amino acids; biocatalysts; biomass; bioprocessing; biotransformation; engineering; feedstocks; lignocellulose; pentoses;     Show all 11 Subjects
Abstract:
... Corynebacterium glutamicum has been mainly used for industrial production of amino acids, and in recent years, it has also been successfully engineered to broaden its range of substrate and product profiles. In particular, C. glutamicum has been engineered to use non-natural sugar substrates (mainly pentoses) derived from hemicellulosic feedstock, which is the second abundant component of lignocel ...
DOI:
10.1016/j.copbio.2018.11.004

5. Effects of heating rate and gas atmosphere on the pyrolysis and combustion characteristics of different crop residues and the kinetics analysis

Author:
Liu, Jiazheng; Zhong, Fei; Niu, Wenjuan; Su, Jing; Gao, Ziqi; Zhang, Kai
Source:
Energy 2019 v.175 pp. 320-332
ISSN:
0360-5442
Subject:
hemicellulose,   etc   ; activation energy; air; cellulose; combustion; lignin; lignocellulose; oxygen; pyrolysis; rice straw; temperature; thermogravimetry;     Show all 12 Subjects
Abstract:
... Efficient utilization of crop residues can help to solve the problem of global resource scarcity. The pyrolysis and combustion characteristics of 40 crop residues and 3 lignocellulosic components in different atmospheres by thermogravimetric analysis were analyzed. The results showed that with the increase of heating rate, the pyrolysis and combustion of cellulose, hemicelluloses, lignin and crop ...
DOI:
10.1016/j.energy.2019.03.044

6. Hydrochar derived from green waste by microwave hydrothermal carbonization

Author:
Shao, Yuchao; Long, Yuyang; Wang, Hengyi; Liu, Dongyun; Shen, Dongsheng; Chen, Ting
Source:
Renewable energy 2019 v.135 pp. 1327-1334
ISSN:
0960-1481
Subject:
hemicellulose,   etc   ; adsorbents; biofuels; cellulose; economic evaluation; green waste; hydrochars; hydrothermal carbonization; storage temperature; sustainable technology;     Show all 10 Subjects
Abstract:
... Green waste (GW), rich in cellulose and hemicellulose, is a valuable resource. Developing alternative sustainable technologies to utilize GW is attracting increasing attention. In this study, microwave hydrothermal carbonization (MHTC) process parameters including holding temperature, holding time, and liquid-to-solid ratio were optimized by a response surface design to tailor the properties of hy ...
DOI:
10.1016/j.renene.2018.09.041

7. Isolation of lignocelluloses from the spent liquor of thermomechanical pulping process with fly ash and cationic polymer

Author:
Sun, Yonghui; Liu, Zhong; Fatehi, Pedram
Source:
Journal of environmental management 2019 v.235 pp. 414-422
ISSN:
0301-4797
Subject:
hemicellulose,   etc   ; biochemical oxygen demand; chemical oxygen demand; fly ash; lignin; lignocellulose; thermomechanical pulping; turbidity;     Show all 8 Subjects
Abstract:
... In this work, fly ash (FA) and polydiallyldimethylammonium chloride (PDADMAC) were utilized to treat the spent liquor (SL) of thermomechanical pulping (TMP) process in an effort to remove its lignocelluloses. The incorporation of PDADMAC into the system reduced the dosage of FA required for achieving acceptable lignocellulose removals. The maximum lignocellulose removals of 81%, 78%, 56%, 53% and ...
DOI:
10.1016/j.jenvman.2019.01.068

8. Alkaline post-incubation improves cellulose hydrolysis after γ-valerolactone/water pretreatment

Author:
Jia, Lili; Qin, Yujie; Wen, Peiyao; Zhang, Tian; Zhang, Junhua
Source:
Bioresource technology 2019 v.278 pp. 440-443
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; adsorption; catalysts; cellulases; cellulose; corn stover; digestibility; esterification; hydrolysis; lignin; lignocellulose; sodium hydroxide; sulfuric acid;     Show all 13 Subjects
Abstract:
... The impact of γ-valerolactone/water (GVL/H2O) pretreatment coupled with alkaline post-incubation on the digestibility of cellulose substrates was investigated. When Avicel was pretreated by GVL/H2O with H2SO4 as catalyst, the glucan conversion decreased from 27% (untreated Avicel) to 16% due to the esterification of cellulose after pretreatment. After incubation of GVL/H2O pretreated Avicel with 1 ...
DOI:
10.1016/j.biortech.2019.01.141

9. Hybrid dilute sulfuric acid and aqueous ammonia pretreatment for improving butanol production from corn stover with reduced wastewater generation

Author:
Xiao, Min; Wang, Lan; Wu, Youduo; Cheng, Chi; Chen, Lijie; Chen, Hongzhang; Xue, Chuang
Source:
Bioresource technology 2019 v.278 pp. 460-463
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; ammonia; butanol; corn stover; feedstocks; lignin; lignocellulose; pretreatment; sugars; sulfuric acid; temperature; washing; wastewater;     Show all 13 Subjects
Abstract:
... An efficient hybrid pretreatment method was developed for butanol production from corn stover using dilute sulfuric acid (DA) and aqueous ammonia (AA). With the optimized AA concentration, treatment temperature and time of 10% AA, 80 °C and 24 h, the hybrid pretreatment could effectively dissolve hemicellulose and lignin with solid recovery rate of 37.45% and lignin reduction rate of 86.77% compar ...
DOI:
10.1016/j.biortech.2019.01.079

10. Fabrication of hemicelluloses films with enhanced mechanical properties by graphene oxide for humidity sensing

Author:
Rao, Jun; Gao, Hui; Guan, Ying; Li, Wen-qi; Liu, Qiang
Source:
Carbohydrate polymers 2019 v.208 pp. 513-520
ISSN:
0144-8617
Subject:
hemicellulose,   etc   ; films (materials); graphene oxide; humidity; packaging materials; scanning electron microscopy; storage modulus; tensile strength;     Show all 8 Subjects
Abstract:
... An effective and green method to incorporate graphene oxide into quaternized hemicelluloses to form a hemicelluloses based film was introduced in this study. Tight, homogeneous, and smooth surfaces of the film were obtained from the SEM image. Data on the mechanical properties of the films indicated that the hybrid films prepared from QH and GO (component of GO was 4.8%) exhibited a high tensile s ...
DOI:
10.1016/j.carbpol.2018.12.099

11. Current advances and future perspectives of 3D printing natural-derived biopolymers

Author:
Liu, Jun; Sun, Lushan; Xu, Wenyang; Wang, Qianqian; Yu, Sujie; Sun, Jianzhong
Source:
Carbohydrate polymers 2019 v.207 pp. 297-316
ISSN:
0144-8617
Subject:
hemicellulose,   etc   ; algae; biobased products; biopolymers; cellulose; feedstocks; guidelines; lignin; lignocellulose; mechanical properties; starch;     Show all 11 Subjects
Abstract:
... 3D printing enables the complex or customized structures production in high speed and resolution. However, the lack of bio-based materials with user-defined biochemical and mechanical property is a significant barrier that limits the widespread adoption of 3D printing for products fabrication. Development of eco-friendly natural-derived biopolymers for 3D printing technologies and their promising ...
DOI:
10.1016/j.carbpol.2018.11.077

12. Decomposition of sugarcane straw: Basis for management decisions for bioenergy production

Author:
Pimentel, Laisa G.; Cherubin, Maurício R.; Oliveira, Dener M.S.; Cerri, Carlos E.P.; Cerri, Carlos C.
Source:
Biomass and bioenergy 2019 v.122 pp. 133-144
ISSN:
0961-9534
Subject:
hemicellulose,   etc   ; bioenergy; carbon; cellulose; crop residue management; energy; lignin; nitrogen; soil; soil quality; straw; sugarcane;     Show all 12 Subjects
Abstract:
... Straw dead stock is a key driver for crop residue management decisions regarding bioenergy production. Therefore, a field study was conducted to evaluate the sugarcane straw decomposition under different straw removal rates, characterize straw composition changes, and quantify the straw-derived C and N loss. Four sugarcane straw removal rates were evaluated: no removal (14.0 Mg ha−1 of DM), 25 (10 ...
DOI:
10.1016/j.biombioe.2019.01.027

13. Effect of severity factor on the hydrothermal pretreatment of sugarcane straw

Author:
Batista, Gustavo; Souza, Renata B.A.; Pratto, Bruna; dos Santos-Rocha, Martha S.R.; Cruz, Antonio J.G.
Source:
Bioresource technology 2019 v.275 pp. 321-327
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; cellulose; energy; furfural; hydrolysis; lignocellulose; liquids; solubilization; straw; sugarcane; sugars;     Show all 11 Subjects
Abstract:
... The recalcitrant structures of sugarcane straw and related lignocellulosic biomasses require a pretreatment step to enable a better enzymatic attack during the hydrolysis. Factors like the energy consumption and the formation of inhibitors require the optimization of the pretreatment step. Thus, the influence of different severity factors (SF) on hydrothermal (also called liquid hot water, LHW) pr ...
DOI:
10.1016/j.biortech.2018.12.073

14. High-pressure steam: A facile strategy for the scalable fabrication of flattened bamboo biomass

Author:
Zhang, Xiaochun; Zhou, Zhezhe; Zhu, Yuding; Dai, Jinfeng; Yu, Youming; Song, Pingan
Source:
Industrial crops and products 2019 v.129 pp. 97-104
ISSN:
0926-6690
Subject:
hemicellulose,   etc   ; bamboos; biomass; culms; equilibrium moisture content; modulus of elasticity; sawing; steam; temperature;     Show all 9 Subjects
Abstract:
... Bamboo features the fastest growing speed and abundant in the plant kingdom. However, it remains a huge challenge to prepare large flat surface boards by directly sawing or cutting due to the hollow cylindrical shape of bamboo culms. We herein have demonstrated the preparation of facile scalable fabrication of larger flattened bamboo board without cutting it into arcs bamboo strips by high-press s ...
DOI:
10.1016/j.indcrop.2018.11.061

15. Effects of residual lignin on composition, structure and properties of mechanically defibrillated cellulose fibrils and films

Author:
Jiang, Yan; Liu, Xiuyu; Yang, Qiang; Song, Xueping; Qin, Chengrong; Wang, Shuangfei; Li, Kecheng
Source:
Cellulose 2019 v.26 no.3 pp. 1577-1593
ISSN:
0969-0239
Subject:
hemicellulose,   etc   ; cellulose; cellulose fibrils; cement; dewatering; hydrogen bonding; hydrophobicity; lignin; nanofibers; strength (mechanics); thermal stability;     Show all 11 Subjects
Abstract:
... This study investigated effects of residual lignin on composition, structure and properties of cellulose fibrils and cellulose fibril-based films by comparing two groups of cellulose fibrils which contained different amounts of lignin (15% and 2%, respectively) but were similar in cellulose to hemicellulose ratio. The results showed that lignin affected the size and content of nanofibril in cellul ...
DOI:
10.1007/s10570-018-02229-4

16. Evaluation of inhibitory effect and feasible utilization of dilute acid-pretreated rice straws on succinate production by metabolically engineered Escherichia coli AS1600a

Author:
Jampatesh, Surawee; Sawisit, Apichai; Wong, Nonthaporn; Jantama, Sirima Suvarnakuta; Jantama, Kaemwich
Source:
Bioresource technology 2019 v.273 pp. 93-102
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; Escherichia coli; fermentation; hydrolysates; metabolic engineering; phosphoric acid; rice straw; saccharification; sugars;     Show all 9 Subjects
Abstract:
... This work demonstrated a pioneer work in the pre-treatment of rice straw by phosphoric acid (H3PO4) for succinate production. The optimized pre-treatment condition of rice straw was at 121 °C for 30 min with 2 N H3PO4. With this condition, total sugar concentration of 31.2 g/L with the highest hemicellulose saccharification yield of 94% was obtained. The physicochemical analysis of the pre-treated ...
DOI:
10.1016/j.biortech.2018.11.002

17. Overview of the recent advances in lignocellulose liquefaction for producing biofuels, bio-based materials and chemicals

Author:
Kim, Jae-Young; Lee, Hyung Won; Lee, Soo Min; Jae, Jungho; Park, Young-Kwon
Source:
Bioresource technology 2019
ISSN:
0960-8524
Subject:
hemicellulose,   etc   ; biofuels; biomass; carbon; cellulose; energy; feedstocks; fossil fuels; lignin; lignocellulose; liquefaction; researchers; solvents;     Show all 13 Subjects
Abstract:
... The concerns over the increasing energy demand and cost as well as environmental problems derived from fossil fuel use are the main driving forces of research into renewable energy. Lignocellulosic biomass comprised of cellulose, hemicellulose, and lignin is an abundant, carbon neutral, and alternative resource for replacing fossil fuels in the future. Solvent liquefaction of lignocellulosic bioma ...
DOI:
10.1016/j.biortech.2019.01.055

18. Biomass derived porous carbon for CO2 capture

Author:
Singh, Gurwinder; Lakhi, Kripal S.; Sil, Sanchita; Bhosale, Sheshanath V.; Kim, InYoung; Albahily, Khalid; Vinu, Ajayan
Source:
Carbon 2019 v.148 pp. 164-186
ISSN:
0008-6223
Subject:
hemicellulose,   etc   ; adsorbents; biochar; biomass; carbon; carbon dioxide; cellulose; cost effectiveness; energy; lignin; physicochemical properties; porosity; pyrolysis; texture;     Show all 14 Subjects
Abstract:
... The quest for producing cost-effective and efficient adsorbents for CO2 capture has received enormous attention in recent times. Biomass-derived porous carbons are considered to be the most preferred adsorbent materials for CO2 capture owing to their excellent textural properties, tunable porosity and low cost. Different type of activation processes including solid-state activation possess generat ...
DOI:
10.1016/j.carbon.2019.03.050

19. Enhanced enzymatic hydrolysis and methane production from rubber wood waste using steam explosion

Author:
Eom, Tokla; Chaiprapat, Sumate; Charnnok, Boonya
Source:
Journal of environmental management 2019 v.235 pp. 231-239
ISSN:
0301-4797
Subject:
hemicellulose,   etc   ; anaerobic digestion; cellulose; energy; enzymatic hydrolysis; enzymes; fuel production; methane; methane production; particle size; rubber; steam; sugars;     Show all 13 Subjects
Abstract:
... Rubber wood waste (RW) requires due to its recalcitrance a pretreatment step before efficient biochemical conversion is possible. Non chemical steam explosion pretreatment was adopted to enhance enzymatic hydrolysis and anaerobic digestion with severity from 2.70 to 4.35. RW treated at severity 4.35 (214 °C for 10 min) gave the highest 83.9 L CH4/kgVS effectiveness in anaerobic digestibility toget ...
DOI:
10.1016/j.jenvman.2019.01.041

20. On-line measurement of activation energy of ground bamboo using near infrared spectroscopy

Author:
Sirisomboon, Panmanas; Posom, Jetsada
Source:
Renewable energy 2019 v.133 pp. 480-488
ISSN:
0960-1481
Subject:
hemicellulose,   etc   ; activation energy; bamboos; cellulose; lignin; lignocellulose; models; near-infrared spectroscopy; prediction; renewable energy sources; screening; vibration;     Show all 12 Subjects
Abstract:
... On-line measurement of activation energy (Ea) is very important in supporting the thermal conversion process. The main objective of this study was to evaluate the Ea of ground bamboo using near infrared spectroscopy in real time. 80 bamboo samples with different diameters were selected using random sampling. Ea was determined using the Coats-Redfern method, and Ea of reaction order (n) at n = 1 an ...
DOI:
10.1016/j.renene.2018.10.051