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Tian S, Yang Z, Yan F, Xue X, Lu J. Preparation of xylooligosaccharides from rice husks and their structural characterization, antioxidant activity, and probiotic properties. Int J Biol Macromol 2024; 271:132575. [PMID: 38788863 DOI: 10.1016/j.ijbiomac.2024.132575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Rice husks are rich in xylan, which can be hydrolyzed by xylanase to form xylooligosaccharides (XOS). XOS are a functional oligosaccharide such as improving gut microbiota and antioxidant properties. In this study, the structure and functional characteristics of XOS were studied. The optimal xylanase hydrolysis conditions through response surface methodology (RSM) were: xylanase dosage of 3000 U/g, hydrolysis time of 3 h, hydrolysis temperature of 50 °C. Under this condition, the yield of XOS was 150.9 mg/g. The TG-DTG curve showed that XOS began to decompose at around 200 °C. When the concentration of XOS reached 1.0 g/L, the clearance rate of DPPH reached 65.76 %, and the scavenging rate of OH reached 62.10 %, while the clearance rate of ABTS free radicals reached 97.70 %, which was equivalent to the clearance rate of VC. XOS had a proliferative effect on four probiotics: Lactobacillus plantarum, Lactobacillus brucelli, Lactobacillus acidophilus, and Lactobacillus rhamnosus. However, the further experiments are needed to explore the improvement effect of XOS on human gut microbiota, laying a foundation for the effective utilization of XOS. XOS have a wide range of sources, low price, and broad development prospects. The reasonable utilization of XOS can bring greater economic benefits.
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Affiliation(s)
- Shuangqi Tian
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China.
| | - Ziyi Yang
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Feng Yan
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Xing'ao Xue
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Jing Lu
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, PO Box 7015, SE-75007 Uppsala, Sweden
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2
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Zeng M, van Pijkeren JP, Pan X. Gluco-oligosaccharides as potential prebiotics: Synthesis, purification, structural characterization, and evaluation of prebiotic effect. Compr Rev Food Sci Food Saf 2023; 22:2611-2651. [PMID: 37073416 DOI: 10.1111/1541-4337.13156] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 02/15/2023] [Accepted: 03/24/2023] [Indexed: 04/20/2023]
Abstract
Prebiotics have long been used to modulate the gut microbiota and improve host health. Most established prebiotics are nondigestible carbohydrates, especially short-chain oligosaccharides. Recently, gluco-oligosaccharides (GlcOS) with 2-10 glucose residues and one or more O-glycosidic linkage(s) have been found to exert prebiotic potentials (not fully established prebiotics) because of their selective fermentation by beneficial gut bacteria. However, the prebiotic effects (non-digestibility, selective fermentability, and potential health effects) of GlcOS are highly variable due to their complex structure originating from different synthesis processes. The relationship between GlcOS structure and their potential prebiotic effects has not been fully understood. To date, a comprehensive summary of the knowledge of GlcOS is still missing. Therefore, this review provides an overview of GlcOS as potential prebiotics, covering their synthesis, purification, structural characterization, and prebiotic effect evaluation. First, GlcOS with different structures are introduced. Then, the enzymatic and chemical processes for GlcOS synthesis are critically reviewed, including reaction mechanisms, substrates, catalysts, the structures of resultant GlcOS, and the synthetic performance (yield and selectivity). Industrial separation techniques for GlcOS purification and structural characterization methods are discussed in detail. Finally, in vitro and in vivo studies to evaluate the non-digestibility, selective fermentability, and associated health effects of different GlcOS are extensively reviewed with a special focus on the GlcOS structure-function relationship.
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Affiliation(s)
- Meijun Zeng
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | - Xuejun Pan
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
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3
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Recombinant expression, purification and characterization of an active bacterial feruloyl-CoA synthase with potential for application in vanillin production. Protein Expr Purif 2022; 197:106109. [DOI: 10.1016/j.pep.2022.106109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/25/2022] [Accepted: 05/03/2022] [Indexed: 11/23/2022]
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4
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Jaichakan P, Thongsook T, Nakphaichit M, Wattanasiritham LS, Phongthai S, Pattarapisitorn A, Utama‐ang N, Laokuldilok T, Klangpetch W. Xylobiose and Xylotriose Production from Alkali Soluble Defatted Rice Bran Arabinoxylan Using Endoxylanase from
Neocallimastix partriciarum. STARCH-STARKE 2022. [DOI: 10.1002/star.202100177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pannapapol Jaichakan
- Department of Agro‐Industry Faculty of Agriculture Natural Resources and Environment Naresuan University Phitsanulok 65000 Thailand
| | - Tipawan Thongsook
- Department of Agro‐Industry Faculty of Agriculture Natural Resources and Environment Naresuan University Phitsanulok 65000 Thailand
| | - Massalin Nakphaichit
- Department of Biotechnology Faculty of Agro‐Industry Kasetsart University Bangkok 10900 Thailand
| | | | - Suphat Phongthai
- Faculty of Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
- Research Center for Development of Local Lanna Rice and Rice Products Chiang Mai University Chiang Mai 50200 Thailand
| | | | - Niramon Utama‐ang
- Faculty of Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of High Value Products from Thai rice and Plants for Health Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of Innovative Food and Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
| | - Thunnop Laokuldilok
- Faculty of Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of High Value Products from Thai rice and Plants for Health Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of Innovative Food and Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
| | - Wannaporn Klangpetch
- Faculty of Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of High Value Products from Thai rice and Plants for Health Chiang Mai University Chiang Mai 50100 Thailand
- Cluster of Innovative Food and Agro‐Industry Chiang Mai University Chiang Mai 50100 Thailand
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5
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Sharma R, Kataria A, Sharma S, Singh B. Structural characterisation, biological activities and pharmacological potential of glycosaminoglycans and oligosaccharides: a review. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15379] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rajan Sharma
- Department of Food Science and Technology Punjab Agricultural University Ludhiana 141004 India
| | - Ankita Kataria
- Department of Food Science and Technology Punjab Agricultural University Ludhiana 141004 India
| | - Savita Sharma
- Department of Food Science and Technology Punjab Agricultural University Ludhiana 141004 India
| | - Baljit Singh
- Department of Food Science and Technology Punjab Agricultural University Ludhiana 141004 India
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6
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Xylooligosaccharides: prebiotic potential from agro-industrial residue, production strategies and prospects. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102190] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Santibáñez L, Henríquez C, Corro-Tejeda R, Bernal S, Armijo B, Salazar O. Xylooligosaccharides from lignocellulosic biomass: A comprehensive review. Carbohydr Polym 2021; 251:117118. [DOI: 10.1016/j.carbpol.2020.117118] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/22/2020] [Accepted: 09/04/2020] [Indexed: 02/04/2023]
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8
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Boonyapakron K, Chitnumsub P, Kanokratana P, Champreda V. Enhancement of catalytic performance of a metagenome-derived thermophilic oligosaccharide-specific xylanase by binding module removal and random mutagenesis. J Biosci Bioeng 2020; 131:13-19. [PMID: 33067124 DOI: 10.1016/j.jbiosc.2020.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 10/23/2022]
Abstract
Xylo-oligosaccharide (XO) is a promising pre-biotic with applications in food, feed and healthcare products. XO can be produced by enzymatic digestion of xylan with xylanase. In this study, we aimed to improve the biochemical properties relevant to catalysis and kinetics of X11, a thermophilic glycosyl hydrolase (GH) family 11 endo-β-1,4-xylanase derived from a metagenomic library isolated from sugarcane bagasse, under high-temperature conditions preferred for XO synthesis. Removal of a carbohydrate-binding module (X11C) resulted in 6.5 fold greater catalytic efficiency. X11C was further improved by a Pro71Thr mutation in the X11P variant obtained from a random mutagenesis library, which exhibited 15.9 fold greater catalytic efficiency compared with wild-type X11 under the enzyme's optimal conditions of 80°C and pH 6.0. Homology modeling suggested that the improved performance of X11P could be attributed to formation of an extra H-bond between Thr71 and Ser75, which stabilizes the key catalytic residue Glu180 at the active pocket and β-sheet layers and agrees with the respective increase in melting temperature (Tm) where X11P >X11C >X11 as determined by differential scanning fluorimetry. The X11P variant was tested for hydrolysis of beechwood xylan, which showed X6 as the major product followed by X3 and X4 XOs. The highest yield of 5.5 g total XOs product/mg enzyme was observed for X11P, equivalent to 3.7 fold higher than that of wild-type with XO production of >800 mg/g xylan. The X11P enzyme could be developed as a thermophilic biocatalyst for XO synthesis in biorefineries.
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Affiliation(s)
- Katewadee Boonyapakron
- Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Penchit Chitnumsub
- Biomolecular Analysis and Application Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Pattanop Kanokratana
- Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Verawat Champreda
- Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand.
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9
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Pistachio (Pistacia vera) shell as a new candidate for enzymatic production of xylooligosaccharides. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-020-00594-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Cho EJ, Trinh LTP, Song Y, Lee YG, Bae HJ. Bioconversion of biomass waste into high value chemicals. BIORESOURCE TECHNOLOGY 2020; 298:122386. [PMID: 31740245 DOI: 10.1016/j.biortech.2019.122386] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 05/22/2023]
Abstract
Dwindling petroleum resources and increasing environmental concerns have stimulated the production of platform chemicals via biochemical processes through the use of renewable carbon sources. Various types of biomass wastes, which are biodegradable and vastly underutilized, are generated worldwide in huge quantities. They contain diverse chemical constituents, which may serve as starting points for the manufacture of a wide range of valuable bio-derived platform chemicals, intermediates, or end products via different conversion pathways. The valorization of inexpensive, abundantly available, and renewable biomass waste could provide significant benefits in response to increasing fossil fuel demands and manufacturing costs, as well as emerging environmental concerns. This review explores the potential for the use of available biomass waste to produce important chemicals, such as monosaccharides, oligosaccharides, biofuels, bioactive molecules, nanocellulose, and lignin, with a focus on commercially viable technologies.
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Affiliation(s)
- Eun Jin Cho
- Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Ly Thi Phi Trinh
- Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea; Research Institute for Biotechnology and Environment, Nong Lam University, Hochiminh City, Viet Nam
| | - Younho Song
- Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Yoon Gyo Lee
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Hyeun-Jong Bae
- Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea; Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea.
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11
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12
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Enzymatic hydrolysis of tropical weed xylans using xylanase from Aureobasidium melanogenum PBUAP46 for xylooligosaccharide production. 3 Biotech 2019; 9:56. [PMID: 30729080 DOI: 10.1007/s13205-019-1586-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 01/17/2019] [Indexed: 10/27/2022] Open
Abstract
The maximum yield of xylanase from Aureobasidium melanogenum PBUAP46 was 5.19 ± 0.08 U ml-1 when cultured in a production medium containing 3.89% (w/v) rice straw and 0.75% (w/v) NaNO3 as carbon and nitrogen sources, respectively, for 72 h. This enzyme catalyzed well and was relatively stable at pH 7.0 and room temperature (28 ± 2 °C). The produced xylanase was used to hydrolyze xylans from four tropical weeds, whereupon it was found that the highest amounts of reducing sugars in the xylan hydrolysates of cogon grass (Imperata cylindrical), Napier grass (Pennisetum purpureum), and vetiver grass (Vetiveria zizanioides) were at 20.44 ± 0.84, 17.50 ± 0.29, and 19.44 ± 0.40 mg 100 mg xylan-1, respectively, but it was not detectable in water hyacinth (Eichhornia crassipes) hydrolysate. The highest combined amount of xylobiose and xylotriose was obtained from vetiver grass; thus, it was selected for further optimization. After optimization, xylanase digestion of vetiver grass xylan at 27.94 U g xylan-1 for 92 h 19 min gave the highest amount of reducing sugars (23.65 ± 1.34 mg 100 mg xylan-1), which were principally xylobiose and xylotriose. The enriched XOs exhibited a prebiotic property, significantly stimulating the growth of Lactobacillus brevis and L. casei by a factor of up to 3.5- and 6.5-fold, respectively, compared to glucose.
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13
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Sharma D, Sharma G, Mahajan R. Development of strategy for simultaneous enhanced production of alkaline xylanase-pectinase enzymes by a bacterial isolate in short submerged fermentation cycle. Enzyme Microb Technol 2018; 122:90-100. [PMID: 30638513 DOI: 10.1016/j.enzmictec.2018.12.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/03/2018] [Accepted: 12/17/2018] [Indexed: 11/26/2022]
Abstract
The aim of this study is to enhance the production of industrially valuable xylanase and pectinase enzymes in short duration, using agrowaste extracted substrates. Conventional cum statistical multifactor analysis approaches were used in order to evaluate the effect of crude extracted substrates, supplemented for the production of xylanase-pectinase enzymes. Incorporation of crude extracted xylan (1.2 mg/ml of inoculum) and pectin (4.8 mg/ml of inoculum) substrates in inoculum resulted in maximal xylanase (320 ± 15) and pectinase titre (90 ± 8) after 48 h, using 2% wheat bran and 2% citrus peel in production medium with 48 h of fermentation time, with one variable factor at a time approach. The best condition obtained after performing statistical multifactor interaction analysis includes 5.50 mg/ml of pectin in inoculum,1.50 mg/ml of xylan in inoculum, wheat bran 3%, temperature 37.5 °C, time 48 h, 7 mg/ml of pectin in production medium, peptone 1.05%, inoculum size 2% and inoculum age of 20 h, with alkaline xylanase activity of 415.22 ± 18.50 IU/ml and alkaline pectinase activity of 109.10 ± 8.80 IU/ml. Activity of different pectinolytic enzymes per ml was also calculated, with 18.98 IU of exo-polymethylgalacturonase, 0.14 IU of endo-polymethylgalacturonase, 80 IU of exo-polygalacturonase, 0.28 IU of endo-polygalacturonase, 1.42 IU of polymethylgalacturonate lyase, 1.47 IU of polygalacturonate lyase, 0.15 IU of pectin esterase. This is the first report mentioning the utilization of crude extracted xylan and extracted pectin in inoculum to get the increment in the activity of both alkaline xylanase-pectinase enzymes simultaneously under short submerged fermentation cycle.
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Affiliation(s)
- Divya Sharma
- Department of Biotechnology, Kurukshetra University, Kurukshetra, 136119, India
| | - Geeta Sharma
- Department of Biotechnology, Kurukshetra University, Kurukshetra, 136119, India
| | - Ritu Mahajan
- Department of Biotechnology, Kurukshetra University, Kurukshetra, 136119, India.
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14
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Arumugam N, Biely P, Puchart V, Singh S, Pillai S. Structure of peanut shell xylan and its conversion to oligosaccharides. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.06.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Purification and characterization of a cellulase-free, thermostable endo-xylanase from Streptomyces griseorubens LH-3 and its use in biobleaching on eucalyptus kraft pulp. J Biosci Bioeng 2018; 125:46-51. [DOI: 10.1016/j.jbiosc.2017.08.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/16/2017] [Accepted: 08/11/2017] [Indexed: 11/18/2022]
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16
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Linares-Pastén JA, Aronsson A, Karlsson EN. Structural Considerations on the Use of Endo-Xylanases for the Production of prebiotic Xylooligosaccharides from Biomass. Curr Protein Pept Sci 2018; 19:48-67. [PMID: 27670134 PMCID: PMC5738707 DOI: 10.2174/1389203717666160923155209] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 08/31/2016] [Accepted: 09/15/2016] [Indexed: 11/24/2022]
Abstract
Xylooligosaccharides (XOS) have gained increased interest as prebiotics during the last years. XOS and arabinoxylooligosaccharides (AXOS) can be produced from major fractions of biomass including agricultural by-products and other low cost raw materials. Endo-xylanases are key enzymes for the production of (A)XOS from xylan. As the xylan structure is broadly diverse due to different substitutions, diverse endo-xylanases have evolved for its degradation. In this review structural and functional aspects are discussed, focusing on the potential applications of endo-xylanases in the production of differently substituted (A)XOS as emerging prebiotics, as well as their implication in the processing of the raw materials. Endo-xylanases are found in at least eight different glycoside hydrolase families (GH), and can either have a retaining or an inverting catalytic mechanism. To date, it is mainly retaining endo-xylanases that are used in applications to produce (A)XOS. Enzymes from these GH-families (mainly GH10 and GH11, and the more recently investigated GH30) are taken as prototypes to discuss substrate preferences and main products obtained. Finally, the need of new and accessory enzymes (new specificities from new families or sources) to increase the yield of different types of (A)XOS is discussed, along with in vitro tests of produced oligosaccharides and production of enzymes in GRAS organisms to facilitate use in functional food manufacturing.
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Affiliation(s)
| | - Anna Aronsson
- Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
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17
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Valorization of peanut shells: Manufacture of bioactive oligosaccharides. Carbohydr Polym 2017; 183:21-28. [PMID: 29352877 DOI: 10.1016/j.carbpol.2017.11.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/26/2017] [Accepted: 11/01/2017] [Indexed: 01/29/2023]
Abstract
Peanut shells were subjected to non-isothermal aqueous treatments to cause the partial breakdown of hemicelluloses into soluble oligosaccharides and lignin-derived compounds with high antioxidant activity. The effects of temperature on the chemical composition of the substrate and soluble reaction products were assessed. Under selected conditions (210°C, severity=4.09), the overall amount of poly- and oligo- saccharides present in the liquid phase reached 9.8g/L. This solution was refined by consecutive stages of discontinuous diafiltration, yielding a refined product containing about 72.4wt% of oligomers at a global yield of 8.5kg/100kg oven-dry PS. The purified products were characterized by HPLC, MALDI-TOF-MS and FTIR, confirming the major reaction products were saccharides made up of xylose with degrees of polymerization up to 17, substituted with acetyl and methylglucuronosyl groups, for which a number of pharmaceutical and food applications have been proposed. Solubilization of hemicelluloses in the treatments resulted in the production of solids enriched in cellulose and lignin suitable for further applications.
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18
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Lim JM, Choi JH, Choi JW, Yun JW, Park TJ, Park JP. Cloning, Expression, and Production of Xylo-Oligosaccharides by Using a Newly Screened Xylanase Isolated from Bovine Rumen. Appl Biochem Biotechnol 2017; 184:1347-1357. [PMID: 29027104 DOI: 10.1007/s12010-017-2623-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
Affiliation(s)
- J M Lim
- Department of Pharmaceutical Engineering, Daegu Haany University, 290 Yugok-dong, Gyeongsan, 38610, Republic of Korea
| | - J H Choi
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 181 Ipsin-gil, Jeongeup-si, 28116, Republic of Korea
| | - J W Choi
- Department of Bioindustry, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - J W Yun
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - T J Park
- Department of Chemistry, Institute of Interdisciplinary Convergence Research, Research Institute of Halal Industrialization Technology, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - J P Park
- Department of Pharmaceutical Engineering, Daegu Haany University, 290 Yugok-dong, Gyeongsan, 38610, Republic of Korea.
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19
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Huang C, Lai C, Wu X, Huang Y, He J, Huang C, Li X, Yong Q. An integrated process to produce bio-ethanol and xylooligosaccharides rich in xylobiose and xylotriose from high ash content waste wheat straw. BIORESOURCE TECHNOLOGY 2017; 241:228-235. [PMID: 28570888 DOI: 10.1016/j.biortech.2017.05.109] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
A bio-refinery process of wheat straw pulping solid residue (waste wheat straw, WWS) was established by combining prewashing and liquid hot water pretreatment (LHWP). The results showed that employing a prewashing step prior to the LHWP remarkably improved enzymatic glucose yields from 39.7% to 76.6%. Moreover, after 96h simultaneous saccharification and fermentation (SSF), identical ethanol yields of 0.41g/g-cellulose were obtained despite varied solid loadings (5-30%). Beyond ethanol, enzymatic post-hydrolysis of the prehydrolyzate effectively increased xylobiose and xylotriose yields from 15mg/g-WWS and 14mg/g-WWS to 53mg/g-WWS and 20mg/g-WWS, respectively. For mass balance, about 10.9tons raw WWS will be consumed to produce 1ton ethanol, in addition to producing 614.8kg xylooligosaccharides (XOS) containing 334.3kg xylobiose and 124.8kg xylotriose. The results demonstrated that the integrated process for the WWS bio-refinery is promising, based on value-adding co-production in addition to robust ethanol yields.
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Affiliation(s)
- Chen Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Chenhuan Lai
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Xinxing Wu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Juan He
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Caoxing Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Xin Li
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Yong
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
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Lv JS, Liu XY, Zhang XP, Wang LS. Chemical composition and functional characteristics of dietary fiber-rich powder obtained from core of maize straw. Food Chem 2017; 227:383-389. [DOI: 10.1016/j.foodchem.2017.01.078] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/26/2016] [Accepted: 01/15/2017] [Indexed: 11/28/2022]
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21
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Preparation of xylooligosaccharides from xylan by controlled acid hydrolysis and fast protein liquid chromatography coupled with refractive index detection. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.06.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Xue JL, Zhao S, Liang RM, Yin X, Jiang SX, Su LH, Yang Q, Duan CJ, Liu JL, Feng JX. A biotechnological process efficiently co-produces two high value-added products, glucose and xylooligosaccharides, from sugarcane bagasse. BIORESOURCE TECHNOLOGY 2016; 204:130-138. [PMID: 26773956 DOI: 10.1016/j.biortech.2015.12.082] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 12/25/2015] [Accepted: 12/28/2015] [Indexed: 05/15/2023]
Abstract
In this study, a co-production of two high value-added products, glucose and xylooligosaccharides (XOS), was investigated by utilizing sugarcane bagasse (SB) within a multi-product bio-refinery framework optimized by Box-Behnken design-based response surface methodology. The developed process resulted in a maximum cellulose conversion of xylan-removed SB, 98.69±1.30%, and a maximum extracted SB xylan conversion into XOS (xylobiose and xylotriose) of 57.36±0.79% that was the highest SB xylan conversion reported in the literature, employing cellulase from Penicillium oxalicum EU2106 and recombinant endo-β-1,4-xylanase in Pichia pastoris. Consequently, a mass balance analysis showed that the maximum yields of glucose and XOS were 34.43±0.32g and 5.96±0.09 g per 100 g raw SB. Overall, this described process may be a preferred option for the comprehensive utilization of SB.
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Affiliation(s)
- Jian-Long Xue
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Rui-Ming Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Xin Yin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Sui-Xin Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Lin-Hui Su
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Qi Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Cheng-Jie Duan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Jun-Liang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, Key Laboratory of Ministry of Education for Microbial and Plant Genetic Engineering, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, People's Republic of China.
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Chen CY, Huang YC, Yang TY, Jian JY, Chen WL, Yang CH. Degradation of konjac glucomannan by Thermobifida fusca thermostable β-mannanase from yeast transformant. Int J Biol Macromol 2015; 82:1-6. [PMID: 26476245 DOI: 10.1016/j.ijbiomac.2015.10.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 10/01/2015] [Accepted: 10/03/2015] [Indexed: 11/19/2022]
Abstract
Native konjac glucomannan was used as the substrate for thermophilic actinomycetes, Thermobifida fusca BCRC19214, to produce β-mannanase. The β-mannanase was purified and five internal amino acid sequences were determined by LC-MS/MS. These sequences had high homology with the β-mannanase from T. fusca YX. The tfm gene which encoded the β-mannanase was cloned, sequenced and heterologous expressed in Yarrowia lipolytica P01 g expression system. Recombinant heterologous expression resulted in extracellular β-mannanase production at levels as high as 3.16 U/ml in the culture broth within 48 h cultivation. The recombinant β-mannanase from Y. lipolytica transformant had superior thermal property. The optimal temperature of the recombinant β-mannanase from Y. lipolytica transformant (pYLSC1-tfm) was 80°C. When native konjac glucomannan was incubated with the recombinant β-mannanase from Y. lipolytica transformant (pYLSC1-tfm) at 50°C, there was a fast decrease of viscosity happen during the initial phase of reaction. This viscosity reduction was accompanied by an increase of reducing sugars. The surface of konjac glucomannan film became smooth. After 24h of treatment, the DPw of native konjac glucomannan decreased from 6,435,139 to 3089.
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Affiliation(s)
- Cheng-Yu Chen
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan; Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Yu-Chun Huang
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan
| | - Ting-Ya Yang
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan
| | - Jhen-Yi Jian
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan
| | - Wei-Lin Chen
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan; Department of Applied Chemistry, Providence University, Taichung 43301, Taiwan
| | - Chao-Hsun Yang
- Department of Cosmetic Science, Providence University, Taichung 43301, Taiwan; Department of Applied Chemistry, Providence University, Taichung 43301, Taiwan.
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24
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Xylooligosaccharides as prebiotics from agricultural by-products: Production and applications. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.bcdf.2014.12.003] [Citation(s) in RCA: 218] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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25
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Yin YR, Zhang F, Hu QW, Xian WD, Hozzein WN, Zhou EM, Ming H, Nie GX, Li WJ. Heterologous expression and characterization of a novel halotolerant, thermostable, and alkali-stable GH6 endoglucanase from Thermobifida halotolerans. Biotechnol Lett 2014; 37:857-62. [DOI: 10.1007/s10529-014-1742-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 11/24/2014] [Indexed: 10/24/2022]
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26
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Production, Purification, and Characterization of a Cellulase-Free Thermostable Endo-xylanase from Thermoanaerobacterium thermosaccharolyticum DSM 571. Appl Biochem Biotechnol 2014; 174:2392-402. [DOI: 10.1007/s12010-014-1135-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 08/01/2014] [Indexed: 11/25/2022]
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27
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Li J, Zhou P, Liu H, Xiong C, Lin J, Xiao W, Gong Y, Liu Z. Synergism of cellulase, xylanase, and pectinase on hydrolyzing sugarcane bagasse resulting from different pretreatment technologies. BIORESOURCE TECHNOLOGY 2014; 155:258-65. [PMID: 24457310 DOI: 10.1016/j.biortech.2013.12.113] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 12/18/2013] [Accepted: 12/26/2013] [Indexed: 05/17/2023]
Abstract
Sugarcane bagasse (SCB) resulting from different pretreatments was hydrolyzed by enzyme cocktails based on replacement of cellulase (Celluclast 1.5 L:Novozym 188=1FPU:4pNPGU) by xylanase or pectinase at different proportions. Lignin content of NaOH pretreated SCB and hemicellulose content of H2SO4 pretreated SCB were the lowest. NaOH pretreatment showed the best for monosaccharide production among the four pretreatments. Synergism was apparently observed between cellulase and xylanase for monosaccharide production from steam exploded SCB (SESB), NaOH, and H2O2 pretreated SCB. No synergism was observed between cellulase and pectinase for producing glucose. Additionally, no synergism was present when H2SO4 pretreated SCB was used. Replacement of 20% of the cellulase by xylanase enhanced the glucose yield by 6.6%, 8.8%, and 9.5% from SESB, NaOH, and H2O2 pretreated SCB, respectively. Degree of synergism between cellulase and xylanase had positive relationship with xylan content and was affected by hydrolysis time.
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Affiliation(s)
- Jingbo Li
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China.
| | - Pengfei Zhou
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Hongmei Liu
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Chunjiang Xiong
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Jianghai Lin
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Wenjuan Xiao
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Yingxue Gong
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Zehuan Liu
- Research Center for Molecular Biology, Institutes of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China.
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28
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Chen MH, Bowman MJ, Dien BS, Rausch KD, Tumbleson ME, Singh V. Autohydrolysis of Miscanthus x giganteus for the production of xylooligosaccharides (XOS): kinetics, characterization and recovery. BIORESOURCE TECHNOLOGY 2014; 155:359-365. [PMID: 24463409 DOI: 10.1016/j.biortech.2013.12.050] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/09/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
The optima conditions of production and purification of xylooligosaccharides (XOS) from Miscanthus x giganteus (MxG) were investigated. Using autohydrolysis, XOS were produced at 160, 180 and 200°C at 60, 20 and 5min, respectively. XOS yield up to 13.5% (w/w) of initial biomass and 69.2% (w/w) of xylan were achieved. Results from HPAEC-PAD analysis revealed that X1-X9 sugar oligomers were produced. Higher temperature and longer reaction time resulted in lower product molecular weight. The three optimum conditions had similar degrees of polymerization XOS. Using 10% activated carbon (w/v) with ethanol/water elution recovered 47.9% (w/w) of XOS from pretreated liquid phase. The XOS could be fractionated by degree of polymerization according to ethanol concentration in the ethanol/water elution. Most of the XOS were washed out in 30% and 50% ethanol/water (v/v) fractions. Recoveries of 91.8% xylobiose, 86.9% xylotriose, 66.3% xylotetrose, 56.2% xylopentose and 48.9% xylohexaose were observed in XOS.
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Affiliation(s)
- Ming-Hsu Chen
- Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA
| | - Michael J Bowman
- Bioenergy Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, 1815 North University Street, Peoria, IL 61604, USA
| | - Bruce S Dien
- Bioenergy Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, 1815 North University Street, Peoria, IL 61604, USA
| | - Kent D Rausch
- Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA
| | - M E Tumbleson
- Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA
| | - Vijay Singh
- Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, 1304 W. Pennsylvania Avenue, Urbana, IL 61801, USA.
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29
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Zhang F, Duan X, Chen S, Wu D, Chen J, Wu J. The addition of Co2+ enhances the catalytic efficiency and thermostability of recombinant glucose isomerase from Thermobifida fusca. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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High-level overproduction of Thermobifida enzyme in Streptomyces lividans using a novel expression vector. Int J Mol Sci 2013; 14:18629-39. [PMID: 24025422 PMCID: PMC3794799 DOI: 10.3390/ijms140918629] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 08/05/2013] [Accepted: 08/23/2013] [Indexed: 11/27/2022] Open
Abstract
In this study, we constructed a novel Streptomyces-E.coli shuttle vector pZRJ362 combining the xylose isomerase promoter and amylase terminator. A gene encoding the endoglucanase Cel6A in Thermobifida fusca was amplified by PCR, cloned into Streptomyces lividans host strain using the novel expression vector and Pichia pastoris GS115 host strain using the vector pPICZα-C, respectively. Afterwards, the expression pattern and the maximum expression level were comparatively studied in both expression systems. The maximum enzyme activity of Cel6A-(His)6 secreted in S. lividans supernatant after 84-h of cultivation amounted to 5.56 U/mL, which was dramatically higher than that secreted in P. pastoris about 1.4 U/mL after 96-h of cultivation. The maximum expression level of Cel6A-(His)6 in S. lividans supernatant reached up to 173 mg/L after 84-h of cultivation. The endoglucanase activity staining SDS-PAGE showed that there were some minor proteins in S. lividans supernatant which may be the Cel6A derivant by proteolytic degradation, while there was no proteolytic product detected in supernatant of P. pastoris.
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31
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Chen CY, Huang YC, Wei CM, Meng M, Liu WH, Yang CH. Properties of the newly isolated extracellular thermo-alkali-stable laccase from thermophilic actinomycetes, Thermobifida fusca and its application in dye intermediates oxidation. AMB Express 2013; 3:49. [PMID: 23985268 PMCID: PMC3846457 DOI: 10.1186/2191-0855-3-49] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Accepted: 08/24/2013] [Indexed: 11/30/2022] Open
Abstract
Laccases are diphenol oxidases that have numerous applications to biotechnological processes. In this study, the laccase was produced from the thermophilic actinomycetes, Thermobifida fusca BCRC 19214. After 36 h of fermentation in a 5-liter fermentor, the culture broth accumulated 4.96 U/ml laccase activity. The laccase was purified 4.64-fold as measured by specific activity from crude culture filtrate by ultrafiltration concentration, Q-Sepharose FF and Sephacryl™ S-200 column chromatography. The overall yield of the purified enzyme was 7.49%. The molecular mass of purified enzyme as estimated by SDS-PAGE and by gel filtration on Sephacryl™ S-200 was found to be 73.3 kDa and 24.7 kDa, respectively, indicating that the laccase from T. fusca BCRC 19214 is a trimer. The internal amino acid sequences of the purified laccase, as determined by LC-MS/MS, had high homology with a superoxide dismutase from T. fusca YX. Approximately 95% of the original activity remained after treatment at 50°C for 3 h. and approximately 75% of the original activity remained after treatment at pH 10.0 for 24 h. This laccase could oxidize dye intermediates, especially 2,6-dimethylphenylalanine and p-aminophenol, to produce coloring. This is the first report on laccase properties from thermophilic actinomycetes. These properties suggest that this newly isolated laccase has potential for specific industrial applications.
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Draft Genome Sequence of the Lignocellulose Decomposer Thermobifida fusca Strain TM51. GENOME ANNOUNCEMENTS 2013; 1:1/4/e00482-13. [PMID: 23846276 PMCID: PMC3709153 DOI: 10.1128/genomea.00482-13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we present the complete genome sequence of Thermobifida fusca strain TM51, which was isolated from the hot upper layer of a compost pile in Hungary. T. fusca TM51 is a thermotolerant, aerobic actinomycete with outstanding lignocellulose-decomposing activity.
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Samanta AK, Jayapal N, Kolte AP, Senani S, Sridhar M, Mishra S, Prasad CS, Suresh KP. Application of Pigeon Pea (Cajanus cajan) Stalks as Raw Material for Xylooligosaccharides Production. Appl Biochem Biotechnol 2013; 169:2392-404. [DOI: 10.1007/s12010-013-0151-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 02/18/2013] [Indexed: 11/29/2022]
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34
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Chen CY, Hsieh ZS, Cheepudom J, Yang CH, Meng M. A 24.7-kDa copper-containing oxidase, secreted by Thermobifida fusca, significantly increasing the xylanase/cellulase-catalyzed hydrolysis of sugarcane bagasse. Appl Microbiol Biotechnol 2013; 97:8977-86. [PMID: 23377789 DOI: 10.1007/s00253-013-4727-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 01/15/2013] [Accepted: 01/19/2013] [Indexed: 11/28/2022]
Abstract
Thermobifida fusca is a moderately thermophilic soil bacterium belonging to Actinobacteria. It has been known for its capability to degrade plant cell wall polymers except lignin and pectin. To know whether it can produce enzymes to facilitate lignin degradation, the extracellular proteins bound to sugarcane bagasse were harvested and identified by liquid chromatography tandem mass spectrometry. Among the identified proteins, a putative copper-containing polyphenol oxidase of 241 amino acids, encoded by the locus Tfu_1114, was thought to presumably play a role in lignin degradation. This protein (Tfu1114) was thus expressed in E. coli and characterized. Similarly to common laccases, Tfu1114 is able to catalyze the oxidation reaction of phenolic and nonphenolic lignin related compounds such as 2,6-dimethoxyphenol and veratryl alcohol. More interestingly, it can significantly enhance the enzymatic hydrolysis of bagasse by xylanase and cellulase. Tfu1114 is stable against heat, with a half-life of 4.7 h at 90 °C, and organic solvents. It is sensitive to ethylenediaminetetraacetic acid and reducing agents but resistant to sodium azide, a potent inhibitor of laccases. Atomic absorption spectroscopy indicated that the ratio of copper to the protein monomer is 1, instead of 4, a feature of classical laccases. All these data suggest that Tfu1114 is a novel oxidase with laccase-like activity, potentially useful in biotechnology application.
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Affiliation(s)
- Cheng-Yu Chen
- Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd, Taichung, Taiwan, 40227, Republic of China
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Deutschmann R, Dekker RF. From plant biomass to bio-based chemicals: Latest developments in xylan research. Biotechnol Adv 2012; 30:1627-40. [DOI: 10.1016/j.biotechadv.2012.07.001] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 06/12/2012] [Accepted: 07/01/2012] [Indexed: 11/26/2022]
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36
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Fermentation of xylo-oligosaccharides by Bifidobacterium adolescentis DSMZ 18350: kinetics, metabolism, and β-xylosidase activities. Appl Microbiol Biotechnol 2012; 97:3109-17. [PMID: 23099913 DOI: 10.1007/s00253-012-4509-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/04/2012] [Accepted: 10/09/2012] [Indexed: 12/21/2022]
Abstract
Xylo-oligosaccharides (XOS) are sugar oligomers of β-1,4-linked xylopyranosyl moieties which exert bifidogenic effect and are increasingly used as prebiotics. The kinetics and the metabolism of Bifidobacterium adolescentis DSMZ 18350 growing on XOS and xylose were investigated. The growth rate was higher on XOS, but greater biomass yield was attained on xylose. Unlike other prebiotics, XOS oligomers were utilized simultaneously, regardless of their chain length. Throughout XOS utilization, xylose concentration slightly increased, being not neatly consumed and remaining unfermented. During growth on XOS, β-xylosidase activity was present in the cytosol, but it occurred in the supernatant as well. A β-1,4-xylolytic enzyme was purified from the supernatant of XOS cultures. The enzyme, a homotetramer of a 39-kDa single protein, was capable of complete XOS hydrolysis and exhibited maximum activity at pH 6.0 and 55 °C. Based on the molecular weight, the protein can be ascribable to the product of the gene BAD_1527, the activity of which has been inferred as an endo-β-1,4-xylanase, but has not been characterized so far. This β-1,4-xylolytic enzyme, found to be active in the cultural supernatant, gives a reason for the never explained accumulation of the monosaccharides in the media of bifidobacterial cultures growing on XOS, without excluding the major role of the intracellular hydrolysis of the imported oligomers.
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37
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Otieno DO, Ahring BK. The potential for oligosaccharide production from the hemicellulose fraction of biomasses through pretreatment processes: xylooligosaccharides (XOS), arabinooligosaccharides (AOS), and mannooligosaccharides (MOS). Carbohydr Res 2012; 360:84-92. [DOI: 10.1016/j.carres.2012.07.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 07/24/2012] [Accepted: 07/26/2012] [Indexed: 10/28/2022]
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38
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Characterization of a novel xylanase from Armillaria gemina and its immobilization onto SiO2 nanoparticles. Appl Microbiol Biotechnol 2012; 97:1081-91. [DOI: 10.1007/s00253-012-4381-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 08/16/2012] [Accepted: 08/19/2012] [Indexed: 11/25/2022]
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39
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Samanta AK, Jayapal N, Kolte AP, Senani S, Sridhar M, Suresh KP, Sampath KT. Enzymatic production of xylooligosaccharides from alkali solubilized xylan of natural grass (Sehima nervosum). BIORESOURCE TECHNOLOGY 2012; 112:199-205. [PMID: 22414575 DOI: 10.1016/j.biortech.2012.02.036] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 02/06/2012] [Accepted: 02/07/2012] [Indexed: 05/25/2023]
Abstract
In this study, a process for producing XOS from Sehima nervosum grass was developed. The grass contains 28.1% hemicellulose. NaOH and steam application yielded 98% of original xylan in contrast to 85% by KOH application. Hydrolysis of xylan with commercial xylanase caused breakdown into XOS comprising of xylobiose, xylotriose along with xylose. Response surface model (RSM) revealed highest xylobiose yield (11 g/100g xylan) at pH 5.03, temperature 45.19°C, reaction time 10.11h with enzyme dose 17.41 U. Similarly for maximizing xylotriose yield, ideal hydrolysis conditions were pH 5.11, temperature 40.33°C, reaction time 16.55 h with enzyme dose 13.20 U. A two step process encompassing xylan fractionation and enzymatic hydrolysis enabled XOS production from the S. nervosum grass.
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Affiliation(s)
- A K Samanta
- National Institute of Animal Nutrition and Physiology, Bangalore 560030, India.
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Otieno DO, Ahring BK. A thermochemical pretreatment process to produce xylooligosaccharides (XOS), arabinooligosaccharides (AOS) and mannooligosaccharides (MOS) from lignocellulosic biomasses. BIORESOURCE TECHNOLOGY 2012; 112:285-292. [PMID: 22425397 DOI: 10.1016/j.biortech.2012.01.162] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 01/25/2012] [Accepted: 01/28/2012] [Indexed: 05/31/2023]
Abstract
Efficient and high yield production of xylooligosaccharides, arabinooligosaccharide and mannooligosaccharides from biomasses is a significant boost to the nutraceutical and pharmaceutical industry. These organic compounds, also known as prebiotics, promote the growth of intestinal probiotic microorganisms thus improving the hosts' overall immune system. This work aimed at designing a thermochemical pretreatment of biomasses leading to production of high prebiotic yields and assessing the liquor quality based on resultant oligomer-monomer constituents. Four biomasses, namely Miscanthus sinensis, Panicum virgatum, Calamagrostis acutiflora and Bagasse, each having a dry weight xylan content of ≥ 20% were used. Identification and quantification using HPLC and ion chromatography systems showed xylooligomer yields of 65.0%, 84.2%, 87.9% and 92.3%, respectively. The xylooligomers also showed a degree of polymerization ranging from 2 to 25. These results demonstrate the potential of a low cost, pretreatment process of biomasses which may be suitable for a commercial scale production of prebiotics.
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Affiliation(s)
- Daniel O Otieno
- Washington State University Tri-Cities, Center for Bioproducts and Bioenergy (CBB), Bioproducts, Sciences and Engineering Laboratory (BSEL) sciences, Richland, Washington 99354, USA
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Xylan as by-product of biorefineries: Characteristics and potential use for food applications. Food Hydrocoll 2011. [DOI: 10.1016/j.foodhyd.2011.04.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lin YS, Tseng MJ, Lee WC. Production of xylooligosaccharides using immobilized endo-xylanase of Bacillus halodurans. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.08.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nawel B, Said B, Estelle C, Hakim H, Duchiron F. Production and partial characterization of xylanase produced by Jonesia denitrificans isolated in Algerian soil. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Aachary AA, Prapulla SG. Xylooligosaccharides (XOS) as an Emerging Prebiotic: Microbial Synthesis, Utilization, Structural Characterization, Bioactive Properties, and Applications. Compr Rev Food Sci Food Saf 2010. [DOI: 10.1111/j.1541-4337.2010.00135.x] [Citation(s) in RCA: 357] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Lau CS, Bunnell KA, Clausen EC, Thoma GJ, Lay JO, Gidden J, Carrier DJ. Separation and purification of xylose oligomers using centrifugal partition chromatography. J Ind Microbiol Biotechnol 2010; 38:363-70. [PMID: 20697926 DOI: 10.1007/s10295-010-0799-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 07/22/2010] [Indexed: 11/27/2022]
Abstract
Xylose oligomers, which have a prebiotic effect, have been used as additives to human and animal food. These oligomers are also the primary intermediate in hemicellulose degradation during the pretreatment of biomass. Centrifugal partition chromatography (CPC) was used in this study to separate and purify xylan-derived oligomers from birchwood xylan. The xylan was partially hydrolyzed to achieve varying degrees of polymerization at 130°C using 0.98% aqueous sulfuric acid for 20 min with a 2.5% solid loading. The CPC solvent system consisting of dimethyl sulfoxide (DMSO), tetrahydrofuran (THF), and water in a 1:6:3 volumetric ratio was used because of its ability to dissolve xylose oligomers of different degrees of polymerization. The CPC was operated in the ascending mode with the water- and DMSO-rich bottom phase acting as the stationary phase, while the THF-rich top phase was the eluent. This paper delineates a method for the production and purification of xylose monomer and xylose oligomers (up to xylopentaose) using CPC. The amount and purity of compounds collected from the CPC fractionation based on 1 g of birchwood xylan were 25.26 mg of xylose at 91.86% purity, 10.71 mg of xylobiose at 85.07% purity, 4.15 mg of xylotriose at 54.71% purity, 5.03 mg of xylotetraose at 38.33% purity and 3.31 mg of xylopentaose at 30.43% purity.
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Affiliation(s)
- Ching-Shuan Lau
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA
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Development and application of a PCR-targeted gene disruption method for studying CelR function in Thermobifida fusca. Appl Environ Microbiol 2010; 76:2098-106. [PMID: 20097808 DOI: 10.1128/aem.02626-09] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Thermobifida fusca is a high-G+C-content, thermophilic, Gram-positive soil actinobacterium with high cellulolytic activity. In T. fusca, CelR is thought to act as the primary regulator of cellulase gene expression by binding to a 14-bp inverted repeat [5'-(T)GGGAGCGCTCCC(A)] that is upstream of many known cellulase genes. Previously, the ability to study the roles and regulation of cellulase genes in T. fusca has been limited largely by a lack of established genetic engineering methods for T. fusca. In this study, we developed an efficient procedure for creating precise chromosomal gene disruptions and demonstrated this procedure by generating a celR deletion strain. The celR deletion strain was then characterized using measurements for growth behavior, cellulase activity, and gene expression. The celR deletion strain of T. fusca exhibited a severely crippled growth phenotype with a prolonged lag phase and decreased cell yields for growth on both glucose and cellobiose. While the maximum endoglucanase activity and cellulase activity were not significantly changed, the endoglucanase activity and cellulase activity per cell were highly elevated. Measurements of mRNA transcript levels in both the celR deletion strain and the wild-type strain indicated that the CelR protein potentially acts as a repressor for some genes and as an activator for other genes. Overall, we established and demonstrated a method for manipulating chromosomal DNA in T. fusca that can be used to study the cellulolytic capabilities of this organism. Components of this method may be useful in developing genetic engineering methods for other currently intractable organisms.
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Brienzo M, Carvalho W, Milagres AMF. Xylooligosaccharides Production from Alkali-Pretreated Sugarcane Bagasse Using Xylanases from Thermoascus aurantiacus. Appl Biochem Biotechnol 2010; 162:1195-205. [DOI: 10.1007/s12010-009-8892-5] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2009] [Accepted: 12/14/2009] [Indexed: 10/20/2022]
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Chen LL, Zhang M, Zhang DH, Chen XL, Sun CY, Zhou BC, Zhang YZ. Purification and enzymatic characterization of two beta-endoxylanases from Trichoderma sp. K9301 and their actions in xylooligosaccharide production. BIORESOURCE TECHNOLOGY 2009; 100:5230-5236. [PMID: 19527927 DOI: 10.1016/j.biortech.2009.05.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Revised: 05/18/2009] [Accepted: 05/20/2009] [Indexed: 05/27/2023]
Abstract
Trichoderma sp. K9301 secreting endoxylanases with an activity of 2836 U/g (dry weight) was screened for XOs production. Two acidic beta-endoxylanases EX1 (30.1 kDa) and EX2 (20.1 kDa) were purified from crude extract of the strain K9301 in solid fermentation. Action modes of EX1 and EX2 towards XOs showed similar hydrolysis characters to endoxylanases belonging to glycosyl hydrolase family 10 and 11, respectively. EX1 exhibited better affinity but lower hydrolytic efficiency than EX2 to xylans from beechwood, birchwood, and oat-spelt. They had synergistic action on xylan hydrolysis. The optimum condition to prepare XOs from corncobs was obtained as 10 mg/ml corncob xylan incubated with 10 U/mg crude enzymes at 50 degrees C for 3 h. The yield of XOs reached 43.3%, and only a little amount of xylose (3.1%) was simultaneously produced, suggesting the good potential of strain K9301 in XOs production.
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Affiliation(s)
- Lei-Lei Chen
- The State Key Lab of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, PR China
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Yang CH, Huang YC, Chen CY. Degradation of rutin by Thermoactinomyces vulgaris and other thermophilic compost isolates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:5095-5099. [PMID: 19489631 DOI: 10.1021/jf900617z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The mutagenic effects of rutin and quercetin have aroused the interest of many investigators. To develop the microbial degradation of rutin, a thermophilic actinomycete, which could hydrolyze rutin, was isolated from compost soil. The taxonomical characteristics of this thermophilic actinomycete were examined and identified as Thermoactinomyces vulgaris PU18-2. After cultivation of T. vulgaris PU18-2 in the rutin-CYC medium for 60 h, the culture filtrate had a rutin-degrading ability, but the cell-free extract did not. There was no quercetin, rutinose, rhamnose, and glucose accumulated in the rutin hydrolysate of the culture filtrate. Both alpha-rhamnosidase and beta-glucosidase activities were not found in the culture filtrate of the T. vulgaris PU18-2 in the rutin-CYC medium. These results showed that the initial attack on rutin by the extracellular enzymes of T. vulgaris PU18-2 apparently was not through the glycosidase-mediated hydrolysis of glycosidic bond.
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Affiliation(s)
- Chao-Hsun Yang
- Department of Cosmetic Science, Providence University, Shalu, Taichung, Taiwan.
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Mata J, Bjar V, Bressollier P, Tallon R, Urdaci M, Quesada E, Llamas I. Characterization of exopolysaccharides produced by three moderately halophilic bacteria belonging to the family Alteromonadaceae. J Appl Microbiol 2008; 105:521-8. [DOI: 10.1111/j.1365-2672.2008.03789.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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