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Zhang H, Li M, Liu Z, Li R, Cao Y. Heat-sealable, transparent, and degradable arabinogalactan/polyvinyl alcohol films with UV-shielding, antibacterial, and antioxidant properties. Int J Biol Macromol 2024; 275:133535. [PMID: 38945318 DOI: 10.1016/j.ijbiomac.2024.133535] [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: 11/22/2023] [Revised: 06/11/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Petroleum-based packaging materials are nondegradable and unsustainable and thus are harmful to the environment. Renewable packaging films prepared from bio-based raw materials are promising alternatives to petroleum-based packaging materials. In this study, colorless and transparent bio-based films were successfully cast using a solution containing a mixture of arabinogalactan (AG) and poly (vinyl alcohol) (PVA). Vanillin was incorporated into the mixture to endow the films with UV-shielding, antioxidant, and antibacterial properties. The morphological, physical, antioxidant, and antibacterial properties of the blend films were then characterized. At an AG:PVA weight ratio of 1:3, and the vanillin content was 0.15 %, the tensile strength of the AG/PVA/Vanillin (APV) films reached ~28 MPa, while their elongation at break reached ~475 %. The addition of vanillin significantly affected the antioxidant and antibacterial properties of the blend films, which exhibited superb UV barrier capacity. The APV films exhibited extremely low oxygen transmittance, delaying the onset of mold/rot in strawberries and reducing their weight loss. Because of the heat sealability of the blend films, they can be used for encapsulating various substances, such as concentrated laundry liquid. Moreover, the blend films were recyclable and biodegradable. Thus, these films have great potential for applications that require sustainable packaging.
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Affiliation(s)
- Hongzhuang Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Mengqing Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Zhulan Liu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China; Huatai Group Corp Ltd., Dongying 257335, PR China.
| | - Ren'ai Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Yunfeng Cao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab Pulp & Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China.
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2
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Hemicellulose: Structure, Chemical Modification, and Application. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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3
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Zhao D, Chang Q, Fan J, Shu Q, Niu S, Li D, Xie Y, Deng X. Effects of ε‐polylysine and chitosan functionalization on pulp board properties for food packaging. J Appl Polym Sci 2022. [DOI: 10.1002/app.52770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Dandan Zhao
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Qing Chang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Jiahui Fan
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Qingfeng Shu
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Shasha Niu
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Dan Li
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Yijun Xie
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
| | - Xiaoyong Deng
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering Shanghai University Shanghai China
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4
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Zhou H, Tong H, Lu J, Cheng Y, Qian F, Tao Y, Wang H. Preparation of bio-based cellulose acetate/chitosan composite film with oxygen and water resistant properties. Carbohydr Polym 2021; 270:118381. [PMID: 34364623 DOI: 10.1016/j.carbpol.2021.118381] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/30/2022]
Abstract
Plastic pollution has inspired the preparation of environmentally friendly bio-based plastics that can replace petroleum-based plastics. Herein, a composite film with oxygen and water resistant properties was prepared by a fluidized bed method, employing bio-based cellulose acetate (CA) as raw material, glycerol as a plasticizer, and chitosan and silica as additives. The addition of 15% chitosan greatly reduced the oxygen transmission rate of the CA film by 83.5%, and increased the tensile stress and tensile strain of the composite membrane, reaching 26.5 MPa and 22.2%, respectively. The deposition of silica particles is able to compensate for the undesired increase in the hydrophilicity caused by the addition of chitosan, and tune the hydrophilic nature of the surface of the CA/CS films to the hydrophobic nature, which is desirable for water-resistant applications. The prepared composite film displays good oxygen and water resistant properties and can be used for food packaging and related applications.
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Affiliation(s)
- Huimin Zhou
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China
| | - Hao Tong
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China
| | - Jie Lu
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China
| | - Yi Cheng
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China
| | - Fang Qian
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Yehan Tao
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China.
| | - Haisong Wang
- Liaoning Key Laboratory of Lignocellulose Chemistry and BioMaterials, Dalian Polytechnic University, Dalian, China.
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5
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Zhao Y, Sun H, Yang B, Fan B, Zhang H, Weng Y. Enhancement of Mechanical and Barrier Property of Hemicellulose Film via Crosslinking with Sodium Trimetaphosphate. Polymers (Basel) 2021; 13:927. [PMID: 33802938 PMCID: PMC8002615 DOI: 10.3390/polym13060927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
Hemicellulose is a kind of biopolymer with abundant resources and excellent biodegradability. Owing to its large number of polar hydroxyls, hemicellulose has a good barrier performance to nonpolar oxygen, making this biopolymer promising as food packaging material. Hydrophilic hydroxyls also make the polymer prone to water absorption, resulting in less satisfied strength especially under humid conditions. Thus, preparation of hemicellulose film with enhanced oxygen and water vapor barrier ability, as well as mechanical strength is still sought after. Herein, sodium trimetaphosphate (STMP) was used as esterification agent to form a crosslinked structure with hemicellulose through esterification reaction to render improved barrier performance by reducing the distance between molecular chains. The thus modified hemicellulose film achieved an oxygen permeability and water vapor permeability of 3.72 cm3 × μm × m-2 × d-1 × kPa-1 and 2.85 × 10-10 × g × m-1 × s-1 × Pa-1, respectively, at the lowest esterification agent addition of 10%. The crosslinked structure also brought good mechanical and thermal properties, with the tensile strength reaching 30 MPa, which is 118% higher than that of the hemicellulose film. Preliminary test of its application in apple preservation showed that the barrier film obtained can effectively slow down the oxidation and dehydration of apples, showing the prospect of application in the field of food packaging.
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Affiliation(s)
- Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Huijuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (B.F.); (H.Z.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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6
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Schlackl K, Herchl R, Almhofer L, Bischof RH, Fackler K, Samhaber W. Intermolecular Interactions in the Membrane Filtration of Highly Alkaline Steeping Lye. MEMBRANES 2021; 11:membranes11020088. [PMID: 33513934 PMCID: PMC7912436 DOI: 10.3390/membranes11020088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/11/2021] [Accepted: 01/23/2021] [Indexed: 12/05/2022]
Abstract
The reuse of steeping lye is crucial for the sustainable production of viscose fibers. Steeping lye contains hemicellulose and many alkaline degradation products, such as organic acids, so that its purification can be evaluated in terms of total organic carbon removal. When considering purification by membrane filtration, intermolecular interactions between hemicellulose and organic acids can strongly affect their retention efficiency. Herein, we give more insights into the ultrafiltration and nanofiltration of steeping lye and corresponding model solutions. Furthermore, we studied the impact of total organic carbon concentration, hemicellulose concentration and sodium hydroxide concentration on the membrane performance. Hydrogen bonds between hemicellulose and certain types of hydroxy acids increased the retention of the latter. In contrast, charge based repulsion forces led to a decreased retention of a certain type of hydroxy acids. It can be clearly shown that taking intermolecular interactions into account is highly important for the description of complex multicomponent mixtures. In addition, the results can be extended to other, highly alkaline process streams with organic content, such as Kraft pulping liquors.
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Affiliation(s)
- Klaus Schlackl
- Kompetenzzentrum Holz GmbH, 4040 Linz, Austria;
- Correspondence: ; Tel.: +43-7672-701-2088
| | - Richard Herchl
- Lenzing AG, 4860 Lenzing, Austria; (R.H.); (R.H.B.); (K.F.)
| | | | | | - Karin Fackler
- Lenzing AG, 4860 Lenzing, Austria; (R.H.); (R.H.B.); (K.F.)
| | - Wolfgang Samhaber
- Department of Process Engineering, Johannes Kepler University, 4040 Linz, Austria;
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7
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Wu Y, Guan Y, Gao H, Zhou L, Peng F. Novel high‐strength montmorillonite/polyvinyl alcohol composite film enhanced by chitin nanowhiskers. J Appl Polym Sci 2020. [DOI: 10.1002/app.50344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yule Wu
- Forestry and Landscape Architecture Anhui Agricultural University Hefei China
| | - Ying Guan
- Forestry and Landscape Architecture Anhui Agricultural University Hefei China
| | - Hui Gao
- Forestry and Landscape Architecture Anhui Agricultural University Hefei China
| | - Liang Zhou
- Forestry and Landscape Architecture Anhui Agricultural University Hefei China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry Beijing Forestry University Beijing China
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8
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Shao H, Zhao Y, Sun H, Yang B, Fan B, Zhang H, Weng Y. Barrier Film of Etherified Hemicellulose from Single-Step Synthesis. Polymers (Basel) 2020; 12:E2199. [PMID: 32992935 PMCID: PMC7599748 DOI: 10.3390/polym12102199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 11/17/2022] Open
Abstract
Hemicellulose with good biodegradability and low oxygen permeability shows great potential in food packaging. However, its strong hydrophilicity leads to its poor moisture resistance, which hinders its wider application. In this paper, a near-hydrophobic hemicellulose was obtained by using single-step synthesis from poplar powder via etherification modification with epoxy chloropropane. This proposed approach has the advantage of avoiding the destruction of hemicellulose structure by secondary alkali-hydrolysis, which was what usually occurred in traditional etherification procedures. The feasibility of using epoxy chloropropane as an alkylation reagent to etherify hemicellulose was confirmed, and the reaction mechanism was elucidated. Contact angle test, thermogravimetric analysis, oxygen transmittance test, and infrared spectrum analysis showed that the barrier property and thermal stability of etherified hemicellulose films have been significantly improved. At an epoxy chloropropane/wood powder ratio (volume/weight) of 2/3 (mL/g), the epoxy hemicellulose films contained the most epoxy groups and displayed the best performance, i.e., tensile strength of 14.6 MPa, surface contact angle of 71.7° and oxygen transmission coefficient of 1.9 (cm3·µm)/(m2·d·kPa), showing great promise as barrier film in food-packaging.
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Affiliation(s)
- Hui Shao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Huijuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (H.S.); (Y.Z.); (B.F.); (H.Z.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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9
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Zhao Y, Sun H, Yang B, Weng Y. Hemicellulose-Based Film: Potential Green Films for Food Packaging. Polymers (Basel) 2020; 12:E1775. [PMID: 32784786 PMCID: PMC7465936 DOI: 10.3390/polym12081775] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 11/17/2022] Open
Abstract
Globally increasing environmental awareness and the possibility of increasing price and dwindling supply of traditional petroleum-based plastics have led to a breadth of research currently addressing environmentally friendly bioplastics as an alternative solution. In this context, hemicellulose, as the second richest polysaccharide, has attracted extensive attention due to its combination of such advantages as abundance, biodegradability, and renewability. Herein, in this review, the latest research progress in development of hemicellulose film with regard to application in the field of food packaging is presented with particular emphasis on various physical and chemical modification approaches aimed at performance improvement, primarily for enhancement of mechanical, barrier properties, and hydrophobicity that are essential to food packing materials. The development highlights of hemicellulose film substrate are outlined and research prospects in the field are described.
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Affiliation(s)
- Yuelong Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
| | - Hui Sun
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China; (Y.Z.); (B.Y.); (Y.W.)
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
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10
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Zhu R, Liu X, Li L, Wang Q, Zhao Q, Liu S, Feng W, Xu F, Zhang X. Valorization of industrial xylan-rich hemicelluloses into water-soluble derivatives by in-situ acetylation in EmimAc ionic liquid. Int J Biol Macromol 2020; 163:457-463. [PMID: 32634510 DOI: 10.1016/j.ijbiomac.2020.06.289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 11/28/2022]
Abstract
In this study, aimed at valorization of industrial xylan-rich hemicelluloses (a by-product of dissolving pulp process), water-soluble hemicelluloses were fabricated with mild acetylation in 1-ethyl-3-methylimidazolium acetate ionic liquid (EmimAc) and dichloroacetyl chloride (Cl2AcCl) system by a facile and novel method. The structure of the acetylated hemicelluloses was characterized by FT-IR and NMR spectra. The resultant modified products could fully dissolve in water with the degree of substitution (DS) valued between 0.17 and 0.37. Structural characterization indicated that the modified hemicelluloses were chiefly composed of the (1 → 4)-linked β-D-Xylp backbone with hydroxyl or -COCH3 linked to O-2 and O-3 of the Xylp units. Moreover, the mild acetylation was achieved by one-pot method, in which the hemicelluloses reacted with mixed anhydride produced between EmimAc and Cl2AcCl rather than Cl2AcCl. Rheological behavior measurements revealed that acetylated hemicelluloses solutions showed shear-thinning behavior and indicated lower viscosity compared with those of the referenced hemicelluloses. The excellent water-solubility of industrial hemicelluloses would widen its application field and be easier for its conversion into desired chemicals.
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Affiliation(s)
- Ruonan Zhu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Xin Liu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Lijun Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Qi Wang
- Xinjiang Zhongtai Textile Group Co. Ltd., Korla Economic and Technological Development Zone, Xinjiang 841000, China
| | - Qiang Zhao
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Shijie Liu
- College of Environmental Science and Forestry, State University of New York, 1 Forestry Drive, Syracuse, NY 13210, USA
| | - Wenjun Feng
- Xinjiang Zhongtai Textile Group Co. Ltd., Korla Economic and Technological Development Zone, Xinjiang 841000, China
| | - Feng Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Xueming Zhang
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China..
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11
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Liu L, Xu M, Cao Y, Wang H, Shao J, Xu M, Zhang Y, Wang Y, Zhang W, Meng X, Liu W. Biochemical Characterization of Xylanases from Streptomyces sp. B6 and Their Application in the Xylooligosaccharide Production from Viscose Fiber Production Waste. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3184-3194. [PMID: 32105462 DOI: 10.1021/acs.jafc.9b06704] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Enzymatic hydrolysis of xylan represents a promising way to produce xylooligosaccharide (XOS), which is a novel ingredient in functional food. However, the recalcitrance of xylan in natural lignocellulosic biomass entails effective and robust xylanases. In the present study, we reported the isolation of a thermophilic Streptomyces sp. B6 from mushroom compost producing high xylanase activity. Two xylanases of Streptomyces sp. B6 belonging to GH10 (XynST10) and GH11 (XynST11) families were thus identified and biochemically characterized to be robust enzymes with high alkaline- and thermostability. Direct hydrolysis of neutralized viscose fiber production waste using XynST10 and XynST11 showed that while XynST10 produced 23.22 g/L XOS with a degree of polymerization (DP) of 2-4 and 9.27 g/L xylose, XynST11 produced much less xylose (1.19 g/L) and a higher amounts of XOS with a DP = 2-4 (28.29 g/L). Thus, XynST11 holds great potential for the production of XOS from agricultural and industrial waste.
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Affiliation(s)
- Lin Liu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Mingyuan Xu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Yanli Cao
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Hai Wang
- Qingdao Vland Biotech Company Group, No. 29 Miaoling Road, Qingdao 266061, People's Republic of China
| | - Jing Shao
- Qingdao Vland Biotech Company Group, No. 29 Miaoling Road, Qingdao 266061, People's Republic of China
| | - Meiqing Xu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Yuancheng Zhang
- Leling Shengli New Energy Company, Limited, Yangan, Leling, Dezhou 253614, People's Republic of China
| | - Yunhe Wang
- Leling Shengli New Energy Company, Limited, Yangan, Leling, Dezhou 253614, People's Republic of China
| | - Weixin Zhang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Xiangfeng Meng
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
| | - Weifeng Liu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, No.72 Binhai Road, Qingdao 266237, People's Republic of China
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12
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Zhang X, Xiao N, Chen M, Wei Y, Liu C. Functional packaging films originating from hemicelluloses laurate by direct transesterification in ionic liquid. Carbohydr Polym 2020; 229:115336. [DOI: 10.1016/j.carbpol.2019.115336] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/05/2019] [Accepted: 09/14/2019] [Indexed: 01/15/2023]
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13
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Liu R, Du J, Zhang Z, Li H, Lu J, Cheng Y, Lv Y, Wang H. Preparation of polyacrylic acid-grafted-acryloyl/hemicellulose (PAA-g-AH) hybrid films with high oxygen barrier performance. Carbohydr Polym 2019; 205:83-88. [DOI: 10.1016/j.carbpol.2018.10.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/08/2018] [Accepted: 10/10/2018] [Indexed: 11/28/2022]
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14
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Preparation of a Highly Porous Carbon Material Based on Quinoa Husk and Its Application for Removal of Dyes by Adsorption. MATERIALS 2018; 11:ma11081407. [PMID: 30103497 PMCID: PMC6119990 DOI: 10.3390/ma11081407] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/31/2018] [Accepted: 08/09/2018] [Indexed: 01/29/2023]
Abstract
A porous carbon material was prepared from quinoa husk (QH) by carbonization and chemical activation with KOH. A series of experiments, including SEM (Scanning electron microscopy), FT-IR (Fourier transform infrared), XRD (X-ray diffraction), Raman, X-ray photoelectron spectroscopy (XPS), and N2 adsorption/desorption, were carried out on the porous carbon produced from quinoa husk (PC–QH). The results showed that PC–QH was mainly composed of activated carbon and graphite. Moreover, PC–QH exhibited a high level of porosity with a BET (the Brunauer–Emmett–Teller theory) surface area of 1713 m2 g−1. As a representative dye, malachite green (MG) was selected to evaluate the performance of PC–QH to absorb the contaminants in dyeing wastewater. In batch adsorption experiments, PC–QH exhibited a high adsorption rate toward malachite green (MG). An uptake capacity of 599.90 mg g−1 was achieved in the initial 5 min, and the MG adsorption capacity of PC–QH reached 1365.10 mg g−1, which was higher than many other adsorbents. The adsorption data were well fitted with the Freundlich isotherm model and the pseudo-second-order kinetic model. PC–QH also displayed a high absorption rate to rhodamine B (RhB), methyl violet (MV), methylene blue (MB), and methyl orange (MO). The results in this study suggest that PC–QH can be a promising adsorbent for quick treatment of dyeing wastewater.
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