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Cláudia Amorim et al.
Food chemistry, 270, 86-94 (2018-09-04)
Xylooligosaccharides (XOS) are prebiotic nutraceuticals that can be sourced from lignocellulosic biomass, such as agro-residues. This study reports for the first time an optimization study of XOS production from agro-residues by direct fermentation using two Trichoderma species. A total of
Kok Jun Liew et al.
Protein expression and purification, 164, 105464-105464 (2019-08-04)
Xylanases (EC are essential enzymes due to their applications in various industries such as textile, animal feed, paper and pulp, and biofuel industries. Halo-thermophilic Rhodothermaceae bacterium RA was previously isolated from a hot spring in Malaysia. Genomic analysis revealed
Cecilie T Vangsøe et al.
Journal of the science of food and agriculture, 101(5), 1910-1919 (2020-09-09)
Cereal co-products rich in dietary fibres are increasingly used in animal feed. The high fibre content decreases the digestibility and reduces the nutrient and energy availability, resulting in lower nutritive value. Therefore, this study investigated the ability of two carbohydrase
Jong Min Oh et al.
Journal of microbiology and biotechnology, 28(5), 757-764 (2018-04-12)
A cellulolytic fungus, YDJ14, was isolated from compost and identified as an Aspergillus sp. strain. Three extracellular β-glucosidases, BGL-A1, BGL-A2, and BGL-A3, were separated using ultrafiltration, ammonium sulfate fractionation, and High-Q chromatography. The molecular masses of the three enzymes were
María de Castro et al.
Journal of integrative plant biology, 59(7), 475-495 (2017-05-06)
As a consequence of the habituation to low levels of dichlobenil (DCB), cultured maize cells presented an altered hemicellulose cell fate with a lower proportion of strongly wall-bound hemicelluloses and an increase in soluble extracellular polymers released into the culture
Sophie C Brandt et al.
Frontiers in microbiology, 11, 2154-2154 (2020-10-20)
A prerequisite for the transition toward a biobased economy is the identification and development of efficient enzymes for the usage of renewable resources as raw material. Therefore, different xylanolytic enzymes are important for efficient enzymatic hydrolysis of xylan-heteropolymers. A powerful
Stefan Jenkins et al.
Frontiers in microbiology, 8, 2618-2618 (2018-01-10)
Exometabolomics enables analysis of metabolite utilization of low molecular weight organic substances by soil bacteria. Environmentally-based defined media are needed to examine ecologically relevant patterns of substrate utilization. Here, we describe an approach for the construction of defined media using
Daniel Wefers et al.
Journal of molecular biology, 429(16), 2509-2527 (2017-07-04)
Arabinoxylans are constituents of the human diet. Although not utilizable by the human host, they can be fermented by colonic bacteria. The arabinoxylan backbone is decorated with arabinose side chains that may be substituted with ferulic acid, thus limiting depolymerization
M C Jonathan et al.
Biotechnology for biofuels, 10, 112-112 (2017-05-05)
Corn stover is lignocellulosic biomass that has potential to be used as raw material for bioethanol production. In the current research, dilute ammonia pretreatment was used to improve the accessibility of corn stover carbohydrates to subsequently added hydrolytic enzymes. Some
Tomohiko Matsuzawa et al.
Applied microbiology and biotechnology, 101(2), 633-646 (2016-08-26)
MeBglD2, a β-glycosidase that is highly activated in the presence of various monosaccharides and disaccharides, was isolated from a soil metagenomic library. MeBglD2 had not only β-glucosidase activity but also β-galactosidase and β-fucosidase activities. MeBglD2 β-glucosidase activity increased in a
Nuntawat Khat-Udomkiri et al.
AMB Express, 8(1), 115-115 (2018-07-18)
Rice husk (RH) is the major agricultural waste obtained during rice hulling process, which can be a sustainable source of xylooligosaccharide (XOS). The current study deals with the production of XOS from Thai rice husk using alkaline pretreatment and enzyme
Maria Romero-Fernández et al.
Bioresource technology, 266, 249-258 (2018-07-10)
The present study focuses on the development and optimization of a packed-bed reactor (PBR) for continuous production of xylooligosaccharides (XOS) from xylan. For this purpose, three different methacrylic polymer-based supports (Relizyme R403/S, Purolite P8204F and Purolite P8215F) activated with glyoxyl
Katarína Šuchová et al.
Enzyme and microbial technology, 134, 109484-109484 (2020-02-12)
Xylanases of the GH30 family are grouped to subfamilies GH30-7 and GH30-8. The GH30-8 members are of bacterial origin and well characterized, while the GH30-7 members are from fungal sources and their properties are quite diverse. Here, a heterologous expression
Manuel Nieto-Domínguez et al.
Journal of agricultural and food chemistry, 65(48), 10526-10533 (2017-11-10)
The eco-friendly synthesis of non-natural glycosides from different phenolic antioxidants was carried out using a fungal β-xylosidase to evaluate changes in their bioactivities. Xylosides from hydroquinone and catechol were successfully formed, although the best results were obtained for hydroxytyrosol, the
Chao Teng et al.
International journal of biological macromolecules, 128, 354-362 (2019-01-27)
In order to increase the thermostability and catalytic efficiency of acidophilic GH11 xylanase, two disulfide bonds were introduced into crucial region of the enzyme. The xylanase PjxA, from Penicillium janthinellum MA21601, has attracted considerable attention due to its favorable acid-resistance;
T Dale et al.
British poultry science, 61(4), 471-481 (2020-07-21)
1. This study quantified xylanase-induced changes in soluble monosaccharides, xylooligosaccharides (XOS) and volatile fatty acid (VFA) contents of the different sections of the gastrointestinal tract (GIT) and whether these were related to altered bird performance. 2. An in vitro digestion
Bing Guo et al.
Marine drugs, 11(4), 1173-1187 (2013-04-10)
Marine xylanases are rather less studied compared to terrestrial xylanases. In this study, a new xylanase gene, xynB, was cloned from the marine bacterium, Glaciecola mesophila KMM241, and expressed in Escherichia coli. xynB encodes a multi-domain xylanase XynB of glycoside
Nuno Torres Faria et al.
New biotechnology, 49, 137-143 (2018-11-14)
Xylanases play a crucial role in the hydrolysis of xylan-rich hemicelluloses and have wide industrial applications in the fuel, food, feed and pulp and paper industries. The production of these enzymes at low cost is of paramount importance for their
Joana R Costa et al.
Food & function, 10(4), 1856-1869 (2019-04-06)
Grape pomace (GP) is a major byproduct worldwide, and it is well known for its bioactive compounds, such as fibers and phenolic compounds, that are popular for their impact upon human health, including gastrointestinal health. The objective of this work
Tianwang Xu et al.
Journal of agricultural and food chemistry, 66(16), 4182-4188 (2018-04-11)
To simplify purification and improve heat tolerance of a thermostable β-xylosidase (ThXylC), a short ELK16 peptide was attached to its C-terminus, which is designated as ThXylC-ELK. Wild-type ThXylC was normally expressed in soluble form. However, ThXylC-ELK assembled into aggregates with
A two-step process for pre-hydrolysis of hemicellulose in pulp-impregnated effluent with high alkali concentration to improve xylose production.
Shi, et al.
Journal of Hazardous Materials, 402, 123573-123573 (2021)
Michael J Bowman et al.
Metabolites, 2(4), 959-982 (2012-01-01)
Switchgrass (Panicum virgatum L., SG) is a perennial grass presently used for forage and being developed as a bioenergy crop for conversion of cell wall carbohydrates to biofuels. Up to 50% of the cell wall associated carbohydrates are xylan. SG
Haiyang Wu et al.
Applied and environmental microbiology, 87(3) (2020-11-15)
The functional screening of a Pseudacanthotermes militaris termite gut metagenomic library revealed an array of xylan-degrading enzymes, including P. militaris 25 (Pm25), a multimodular glycoside hydrolase family 10 (GH10). Sequence analysis showed details of the unusual domain organization of this
Hao Shi et al.
Biotechnology for biofuels, 6(1), 26-26 (2013-02-20)
Xylanase is an important component of hemicellulase enzyme system. Since it plays an important role in the hydrolysis of hemicellulose into xylooligosaccharides (XOs), high thermostable xylanase has been the focus of much recent attention as powerful enzyme as well as
Yingying Zheng et al.
Journal of structural biology, 193(3), 206-211 (2016-01-01)
The cold-adapted xylanases can catalyze at low temperature and hold great potential in food industry applications. Here we describe the first crystal structure of a cold-adapted glycoside hydrolase (GH) family 10 xylanase XynGR40 and its complex with xylobiose at 2.15
Jacob Krüger Jensen et al.
The New phytologist, 218(3), 1049-1060 (2018-02-21)
Insights into the evolution of plant cell walls have important implications for comprehending these diverse and abundant biological structures. In order to understand the evolving structure-function relationships of the plant cell wall, it is imperative to trace the origin of
Juliet Victoria et al.
Preparative biochemistry & biotechnology, 47(6), 547-553 (2017-01-04)
Depolymerization of lignocellulosic biomass is catalyzed by groups of enzymes whose action is influenced by substrate features and the composition of cellulase preparation. Cellulases contain a mixture of variety of enzymes, whose proportions dictate the saccharification of biomass. In the
Wen-Kang Huo et al.
International journal of biological macromolecules, 117, 1343-1351 (2017-12-05)
The rice xylanase inhibitor gene, rixi, was cloned from rice genome. The open reading frame of rixi was 915 bp and encoded 304 amino acids with the theoretical molecular mass of 33.9 kDa. The rixi was inserted into the new-type expression vector
Chuannan Long et al.
3 Biotech, 8(1), 26-26 (2017-12-28)
The goal of this study was to enhance the production of xylooligosaccharides (XOs) and reduce the production of xylose. We investigated β-xylosidases, which were key enzymes in the hydrolysis of xylan into xylose, in
Nasim Najjarzadeh et al.
Molecules (Basel, Switzerland), 25(24) (2020-12-17)
Xylan is one of the most abundant carbohydrates on Earth. Complete degradation of xylan is achieved by the collaborative action of endo-β-1,4-xylanases and β-d-xylosidases and a number of accessories enzymes. In filamentous fungi, the xylanolytic system is controlled through induction
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