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1. Natural xylose-derived carbon dots towards efficient semi-artificial photosynthesis

Author:
Zirui Wang; Yahui Zhang; Siyu Zhang; Min Ge; Huayang Zhang; Shaobin Wang; Zhijun Chen; Shujun Li; Chenhui Yang
Source:
Journal of colloid and interface science 2023 v.629 pp. 12-21
ISSN:
0021-9797
Subject:
xylose,   etc   ; absorption; biomass; carbon; carbon dioxide; carbonization; electrochemistry; electron transfer; grana; oxidation; photosynthesis; solar radiation; structure-activity relationships; synergism; thylakoids;     Show all 15 Subjects
Abstract:
... Photosynthesis by plants stores sunlight into chemicals and drives CO₂ fixation into sugars with low biomass conversion efficiency due to the unoptimized solar spectrum utilization and various chemical conversion possibilities that follow H₂O oxidation. Expanding the solar spectrum utilization and optimizing the charge transfer pathway of photosynthesis is critical to improving the conversion effi ...
DOI:
10.1016/j.jcis.2022.09.044

2. Multivariate comparative analysis of chemical constituent changes and antioxidant properties of polysaccharides in ribes stenocarpum maxim. at different maturity stages on the Qinghai-Tibet Plateau

Author:
Xinyue Liang; Ying Ye; Yunhe Zhu; Jinrong Xiao; Yangbo Qiao
Source:
Scientia horticulturae 2023 v.308 pp. 111556
ISSN:
0304-4238
Subject:
xylose,   etc   ; Ribes; air; air temperature; antioxidant activity; antioxidants; ascorbic acid; atmospheric pressure; carbohydrate structure; flavonoids; fruit maturity; fruits; glucose; polysaccharides; shortwave radiation; specific humidity; triterpenoids; China;     Show all 18 Subjects
Abstract:
... Ribes stenocarpum Maxim. (RSM) is abundant but less known in the Qinghai-Tibet Plateau, so far, it is still in the wild state and has not been effectively developed and utilized. Based on this, the fruits RSM at seven different picking time were used to quantify the contents of total polysaccharides (TP), total flavonoids (TF), titratable acids (TA), total triterpene acids (TTA), fruit oils (FO) a ...
DOI:
10.1016/j.scienta.2022.111556

3. Paradigm shift in xylose isomerase usage: a novel scenario with distinct applications

Author:
Renan Yuji Miyamoto; Ricardo Rodrigues de Melo; Isabelle Lobo de Mesquita Sampaio; Amanda Silva de Sousa; Edvaldo Rodrigo Morais; Cintia Regina Sargo; Leticia Maria Zanphorlin
Source:
Critical reviews in biotechnology 2022 v.42 no.5 pp. 693-712
ISSN:
1549-7801
Subject:
xylose; xylose isomerase,   etc   ; biotechnology; corn; cosmetics; metabolism; polymers; syrups; value added;     Show all 9 Subjects
Abstract:
... Isomerases are enzymes that induce physical changes in a molecule without affecting the original molecular formula. Among this class of enzymes, xylose isomerases (XIs) are the most studied to date, partly due to their extensive application in industrial processes to produce high-fructose corn sirups. In recent years, the need for sustainable initiatives has triggered efforts to improve the biobas ...
DOI:
10.1080/07388551.2021.1962241

4. Efficient conversion of hemicellulose into 2, 3-butanediol by engineered psychrotrophic Raoultella terrigena: mechanism and efficiency

Author:
Yue Wang; Bowen Wu; Tian Ma; Yaozu Mi; Hanyi Jiang; Haohao Yan; Peichao Zhao; Shuo Zhang; Linxuan Wu; Lei Chen; Hailian Zang; Chunyan Li
Source:
Bioresource technology 2022 v.359 pp. 127453
ISSN:
0960-8524
Subject:
xylose; xylose isomerase,   etc   ; Raoultella terrigena; agricultural wastes; biorefining; biotransformation; carbon; corn straw; genes; transcriptomics; xylan; xylooligosaccharides;     Show all 12 Subjects
Abstract:
... Low-temperature biorefineries inhibit the multiplication of undesired microorganisms, improve product purity and reduce economic costs. Herein, to improve the 2,3-butanediol (2,3-BD) bioconversion efficiency from hemicellulose, a psychrotrophic hemicellulose-degrading strain Raoultella terrigena HC6 with high β-xylosidase activity 1520 U/mL was isolated and genetically modified. Xylan (hemicellulo ...
DOI:
10.1016/j.biortech.2022.127453

5. Metabolic engineering of Halomonas bluephagenesis to metabolize xylose for poly-3-hydroxybutyrate production

Author:
Biwei Tan; Yuanmin Zheng; Haojie Yan; Yuzhong Liu; Zheng-Jun Li
Source:
Biochemical engineering journal 2022 v.187 pp. 108623
ISSN:
1369-703X
Subject:
xylose; xylose isomerase,   etc   ; Escherichia coli; Halomonas; biotechnology; carbon; cell growth; fructose-bisphosphate aldolase; pentose phosphate cycle; phosphoketolase; poly-3-hydroxybutyrate; xylulose;     Show all 12 Subjects
Abstract:
... Halomonas bluephagenesis is an essential host for next generation industrial biotechnology (NGIB) due to its ability to grow under high-salt and alkali conditions. In this study, H. bluephagenesis TD01 was engineered to metabolize xylose. Firstly, four different xylose-specific transporters were introduced yet xylose cannot be consumed. Further expression of xylose isomerase from Escherichia coli ...
DOI:
10.1016/j.bej.2022.108623

6. Continuous hydrothermal furfural production from xylose in a microreactor with dual-acid catalysts

Author:
Tiprawee Tongtummachat; Attasak Jaree; Nattee Akkarawatkhoosith
Source:
RSC advances 2022 v.12 no.36 pp. 23366-23378
ISSN:
2046-2069
Subject:
xylose,   etc   ; aluminum chloride; catalysts; formic acid; furfural; temperature;     Show all 6 Subjects
Abstract:
... An effective continuous furfural production from xylose in a microreactor over dual-acid catalysts was proposed. In this work, furfural was synthesized in an organic solvent-free system using formic acid and aluminum chloride as catalyst. The role of these catalysts in the consecutive reactions was examined and verified. The influence of operating conditions including xylose concentration, reactio ...
DOI:
10.1039/d2ra03609f

7. Iron-catalysed chemo-selective oxidation of unprotected sugars: application for the competitive oxidation of pentoses from a sugar mixture

Author:
David Branquet; Mohamed Vall Sidi Boune; Nicolas Hucher; Catherine Taillier; Vincent Dalla; Sébastien Comesse; Laure Benhamou
Source:
Green chemistry 2022 v.24 no.19 pp. 7682-7688
ISSN:
1463-9270
Subject:
xylose,   etc   ; green chemistry; hydrogenation; oxidation; pentoses; sugar lactones;     Show all 6 Subjects
Abstract:
... An iron-catalysed transfer hydrogenation methodology was developed to oxidise aldo-hexoses and -pentoses into sugar lactones using different acceptors. The transformation occurs on unprotected sugars with complete chemo-selectivity for the anomeric position. An application for the competitive oxidation of pentose from a mixture of C5 and C6 sugars is also reported. Finally, we managed to perform t ...
DOI:
10.1039/d2gc02606f

8. Identification and functional expression of a new xylose isomerase from the goat rumen microbiome in Saccharomyces cerevisiae

Author:
Gabriel de Souza Colombo; Isis Viana Mendes; Betúlia de Morais Souto; Cristine Chaves Barreto; Luana Assis Serra; Eliane Ferreira Noronha; Nádia Skorupa Parachin; João Ricardo Moreira de Almeida; Betania Ferraz Quirino
Source:
Letters in applied microbiology 2022 v.74 no.6 pp. 941-948
ISSN:
0266-8254
Subject:
xylose; xylose isomerase,   etc   ; Firmicutes; Saccharomyces cerevisiae; bioethanol; biomass; carbon; climate; ethanol; fermentation; fossil fuels; genes; genomic libraries; goats; lignocellulose; microbiome; pentoses; phylogeny; xylulose;     Show all 19 Subjects
Abstract:
... The current climate crisis demands replacement of fossil energy sources with sustainable alternatives. In this scenario, second‐generation bioethanol, a product of lignocellulosic biomass fermentation, represents a more sustainable alternative. However, Saccharomyces cerevisiae cannot metabolize pentoses, such as xylose, present as a major component of lignocellulosic biomass. Xylose isomerase (XI ...
DOI:
10.1111/lam.13689

9. Structure of heteroxylans from vitreous and floury endosperms of maize grain and impact on the enzymatic degradation

Author:
Estelle Bonnin; Maud Joseph-Aimé; Luc Fillaudeau; Sylvie Durand; Xavier Falourd; Sophie Le Gall; Luc Saulnier
Source:
Carbohydrate polymers 2022 v.278 pp. 118942
ISSN:
0144-8617
Subject:
xylose,   etc   ; arabinose; cell walls; corn; endosperm; galactose; xylan; xylanases;     Show all 8 Subjects
Abstract:
... Heteroxylans (HX) from vitreous and floury parts of maize endosperm were isolated. Structural analysis showed a xylan backbone with few unsubstituted xylose residues (<9%) demonstrating the high content in side chains in both fractions. HX from floury endosperm contained more arabinose and galactose than vitreous HX. The mono-substitution rate was 15% higher in the vitreous endosperm HX. Similar a ...
DOI:
10.1016/j.carbpol.2021.118942

10. The enhancement on biohydrogen production by the driving forces from extracellular iron oxide respiration

Author:
Lei Yu; Wei-xin Cheng; Quan Wang
Source:
Bioresource technology 2022 v.361 pp. 127679
ISSN:
0960-8524
Subject:
xylose,   etc   ; biohydrogen; fermentation; glucose; hydrogen production; iron oxides; polymers;     Show all 7 Subjects
Abstract:
... Biohydrogen productions from xylose and glucose under dark condition were enhanced by the presence of natural Fe₃O₄. The electron equivalent of H₂ fractions accounted for 4.55 % and 5.69 % of the total given xylose and glucose in the experiments without Fe₃O₄, and that were correspondingly increased to 5.14 % and 6.50 % in the experiments with 100 mg/L of Fe₃O₄, respectively. Moreover, Fe₃O₄ incre ...
DOI:
10.1016/j.biortech.2022.127679

11. An overview of the metabolically engineered strains and innovative processes used for the value addition of biomass derived xylose to xylitol and xylonic acid

Author:
M.S Lekshmi Sundar; K. Madhavan Nampoothiri
Source:
Bioresource technology 2022 v.345 pp. 126548
ISSN:
0960-8524
Subject:
xylose,   etc   ; biomass; biorefining; fermentation; lignocellulose; metabolic engineering; pentoses; xylitol;     Show all 8 Subjects
Abstract:
... Xylose, the most abundant pentose sugar of the hemicellulosic fraction of lignocellulosic biomass, has to be utilized rationally for the commercial viability of biorefineries. An effective pre-treatment strategy for the release of xylose from the biomass and an appropriate microbe of the status of an Industrial strain for the utilization of this pentose sugar are key challenges which need special ...
DOI:
10.1016/j.biortech.2021.126548

12. Partial acid-hydrolysis of TEMPO-oxidized arabinoxylans generates arabinoxylan-structure resembling oligosaccharides

Author:
Carolina O. Pandeirada; Sofia Speranza; Edwin Bakx; Yvonne Westphal; Hans-Gerd Janssen; Henk A. Schols
Source:
Carbohydrate polymers 2022 v.276 pp. 118795
ISSN:
0144-8617
Subject:
xylose,   etc   ; acid hydrolysis; alditols; arabinoxylan; oligosaccharides; polymerization; rye; wheat;     Show all 8 Subjects
Abstract:
... Arabinoxylans (AXs) display biological activities that depend on their chemical structures. To structurally characterize and distinguish AXs using a non-enzymatic approach, various TEMPO-oxidized AXs were partially acid-hydrolysed to obtain diagnostic oligosaccharides (OS). Arabinurono-xylo-oligomer alditols (AUXOS-A) with degree of polymerization 2–5, comprising one and two arabinuronic acid (Ara ...
DOI:
10.1016/j.carbpol.2021.118795

13. Fouling characteristics and cleaning approach of ultrafiltration membrane during xylose reductase separation

Author:
Santhana Krishnan; Mohd Nasrullah; Hesam Kamyab; Noor Suzana; Mimi Sakinah Ab Munaim; Zularisam Ab Wahid; Ismat H. Ali; Reza Salehi; Sumate Chaiprapat
Source:
Bioprocess and biosystems engineering 2022 v.45 no.7 pp. 1125-1136
ISSN:
1615-7591
Subject:
xylose,   etc   ; bioprocessing; hydraulic resistance; models; oxidoreductases; sodium hydroxide; ultrafiltration; xylitol;     Show all 8 Subjects
Abstract:
... Many operating parameters of ultrafiltration (UF) are playing a crucial role when using a polyethersulfone membrane to separate xylose reductase (XR) enzyme from reaction mixtures during xylitol synthesis. The present study focuses on the separation of XR enzyme using a cross-flow ultrafiltration (UF) membrane. The filtration process was analyzed using the three effective variables such as filtrat ...
DOI:
10.1007/s00449-022-02726-8

14. High conversion of xylose to furfural over corncob residue-based solid acid catalyst in water-methyl isobutyl ketone

Author:
Yanan Dai; Shujuan Yang; Tianhao Wang; Rong Tang; Ye Wang; Liping Zhang
Source:
Industrial crops and products 2022 v.180 pp. 114781
ISSN:
0926-6690
Subject:
xylose,   etc   ; biomass; catalysts; catalytic activity; corn cobs; furfural; surface area;     Show all 7 Subjects
Abstract:
... In order to improve the high-value utilization of raw materials in furfural production, a solid acid catalyst based on corncob residue (S-IRCC) was synthesized using the method of impregnation–carbonization–sulfonation. The impregnation of FeCl₃ makes S-IRCC exhibit excellent surface area and catalytic activity, and S-IRCC possessing -COOH, phenolic -OH, and -SO₃H groups. The effects of reaction c ...
DOI:
10.1016/j.indcrop.2022.114781

15. Tuning pore size and surface charge of poly(piperazinamide) nanofiltration membrane by enhanced chemical cleaning treatment

Author:
Yuling Ren; Junyong Zhu; Shichao Feng; Xiangrong Chen; Jianquan Luo; Yinhua Wan
Source:
Journal of membrane science 2022 v.643 pp. 120054
ISSN:
0376-7388
Subject:
xylose,   etc   ; biorefining; crosslinking; hydrolysis; liquids; nanofiltration; pH; permeability; polyamides; porosity;     Show all 10 Subjects
Abstract:
... Separation of divalent salts and small organics plays a paramount in biorefinery and food industries. Nanofiltration (NF) membranes featuring suitable pore aperture ranges enables achievement of this goal, yet it fails in attaining a high liquid permeance and selectivity due to the presence of a highly crosslinked polyamide (PA) layer. In this work, the separation efficiency of monosaccharides and ...
DOI:
10.1016/j.memsci.2021.120054

16. Simultaneous saccharification isomerization and Co-fermentation – SSICF: A new process concept for second-generation ethanol biorefineries combining immobilized recombinant enzymes and non-GMO Saccharomyces

Author:
Ederson Paulo Xavier Guilherme; Leticia Maria Zanphorlin; Amanda Silva Sousa; Renan Yuji Miyamoto; Carlos Giovani Oliveira Bruziquesi; Bruna Mara Aparecida de Carvalho Mesquita; Sergio Henrique Sousa Santos; Elizama Aguiar-Oliveira; Junio Cota
Source:
Renewable energy 2022 v.182 pp. 274-284
ISSN:
0960-1481
Subject:
xylose; xylose isomerase,   etc   ; Saccharomyces; bioprocessing; biorefining; cellobiose; ethanol; ethanol production; feedstocks; fermentation; isomerization; lignocellulose; magnetism; non-genetically modified foods; pH; renewable energy sources; saccharification; sugarcane bagasse; yeasts;     Show all 19 Subjects
Abstract:
... Integrated bioprocess strategies may facilitate ethanol production from both C6 and C5 fractions of lignocellulosic feedstocks. We propose a new process concept, SSICF, where sugarcane bagasse is hydrolyzed simultaneously with xylose isomerization and the co-fermentation of C6 and C5 sugars. A commercial cocktail was supplemented with our multi-enzymatic system composed of three recombinant enzyme ...
DOI:
10.1016/j.renene.2021.10.023

17. Analysis of molecular weight and structural changes in water-extractable arabinoxylans during the breadmaking process

Author:
Yasuyuki Nishitsuji; Kristin Whitney; Kenji Nakamura; Katsuyuki Hayakawa; Senay Simsek
Source:
Food chemistry 2022 v.386 pp. 132772
ISSN:
0308-8146
Subject:
xylose,   etc   ; arabinose; arabinoxylan; breadmaking; dough; fermentation; food chemistry; molecular weight; solubilization;     Show all 9 Subjects
Abstract:
... Arabinoxylans are important for dough and breadmaking properties. It is not clear how arabinoxylans of different molecular weights behave during the breadmaking process as well as the changes in individual structures. We investigated changes in the molecular weight and structure of water-extractable arabinoxylans. It was revealed that molecules larger than high molecular weight arabinoxylans were ...
DOI:
10.1016/j.foodchem.2022.132772

18. Co-metabolic biodegradation of structurally discrepant dyestuffs by Klebsiella sp. KL-1: A molecular mechanism with regards to the differential responsiveness

Author:
Xuehui Xie; Hangmi Zheng; Qingyun Zhang; Jiao Fan; Na Liu; Xinshan Song
Source:
Chemosphere 2022 v.303 pp. 135028
ISSN:
0045-6535
Subject:
xylose,   etc   ; Klebsiella; anthraquinones; biodegradation; malachite green; molecular weight; peroxidase; proteome; thiols;     Show all 9 Subjects
Abstract:
... In this study, an attempt was made to decipher the underlying differential response mechanism of Klebsiella sp. KL-1 induced by exposure to disparate categories of dyestuffs in xylose (Xyl) co-metabolic system. Here, representative reactive black 5 (RB5), remazol brilliant blue R (RBBR) and malachite green (MG) belonging to the azo, anthraquinone and triphenylmethane categories were employed as th ...
DOI:
10.1016/j.chemosphere.2022.135028

19. Efficient and economical production of polyhydroxyalkanoate from sustainable rubber wood hydrolysate and xylose as co-substrate by mixed microbial cultures

Author:
Jianing Li; Dongna Li; Yuhang Su; Xu Yan; Fei Wang; Lili Yu; Xiaojun Ma
Source:
Bioresource technology 2022 v.355 pp. 127238
ISSN:
0960-8524
Subject:
xylose,   etc   ; biosynthesis; carbon; feedstocks; hydrolysates; microbial communities; polyhydroxyalkanoates; rubber; technology; wood;     Show all 10 Subjects
Abstract:
... Using co-substrate to accumulate polyhydroxyalkanoate (PHA) is an efficient approach to reduce production cost and improve yield of PHA. In the study, PHA was biosynthesized under full aerobic mode by using rubber wood hydrolysate and xylose co-substrate as the carbon source. The effects of co-substrate on PHA production, microbial community and carbon conversion were explored. The results showed ...
DOI:
10.1016/j.biortech.2022.127238

20. Conversion of xylose to bioproducts on bifunctional supported platinum-group metals catalysts

Author:
Paola C. Oliveira; Simone J. Canhaci; Catarine B. Gabriel; Carla R. Moreira; Andréa M. Duarte de Farias; Marco A. Fraga
Source:
Current research in green and sustainable chemistry 2022 v.5 pp. 100305
ISSN:
2666-0865
Subject:
xylose,   etc   ; biobased products; catalysts; catalytic activity; furfuryl alcohol; green chemistry; research;     Show all 7 Subjects
Abstract:
... Nb₂O₅-supported platinum-group metals catalysts were investigated in the one-pot aqueous-phase isomerization-dehydration-hydrogenation cascade conversion of xylose. The interplay between Nb₂O₅ acid sites and noble metal particles was discussed with a particular focus on catalyst stability. Pt/Nb₂O₅ was the best-performing catalyst for xylose upgrading regarding xylose consumption rates and high se ...
DOI:
10.1016/j.crgsc.2022.100305