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Wang L, Li Y, Ye L, Zhi C, Zhang T, Miao M. Development of starch-cellulose composite films with antimicrobial potential. Int J Biol Macromol 2024; 276:133836. [PMID: 39004254 DOI: 10.1016/j.ijbiomac.2024.133836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/14/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
This study explored the structure and performance of starch-based antibacterial films reinforced with black tea cellulose nanocrystals (BT-CNCs). The optimal addition amount of BT-CNCs is 5 % (w/w Starch). This nanocrystal-infused film, incorporating chitosan (CS), ε-polylysine (ε-PL), and zinc oxide nanoparticles (ZnONP) as antibacterial agents, exhibited a smooth, continuous surface. The addition of BT-CNCs and antibacterial agents did not change the group characteristic peaks of the film, but changed the crystallinity slightly. The films, namely St, St/CNCs, St/CNCs/CS, and St/CNCs/ε-P, maintained high light transmittance (above 80 %), except for the St/CNCs/ZnONP film, which effectively shielded UV radiation. The combined use of antibacterial agents and BT-CNCs enhanced the water and oxygen barrier properties of the film. Notably, the St/CNCs/CS film exhibited the lowest solubility (17.74 % ± 0.36) and the highest tensile strength (14.23 ± 0.16 MPa). The antibacterial efficacy of the films decreased in the order of St/CNCs/ZnONP, St/CNCs/ε-PL, and St/CNCs/CS, with a more pronounced inhibitory effect on E. coli compared to S. aureus. This study marries natural waste recycling with cutting-edge food packaging technology, setting a new benchmark for the development of sustainable packaging materials.
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Affiliation(s)
- Liping Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yukun Li
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Lei Ye
- Jiangsu Longjun Environmental Protection Industrial Development Co., Ltd., Changzhou, Jiangsu 213000, China
| | - Chaohui Zhi
- Jiangsu Longjun Environmental Protection Industrial Development Co., Ltd., Changzhou, Jiangsu 213000, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Ming Miao
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
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Xiao H, Wang L, Bu N, Duan J, Pang J. Electrospun Photodynamic Antibacterial Konjac Glucomannan/Polyvinylpyrrolidone Nanofibers Incorporated with Lignin-Zinc Oxide Nanoparticles and Curcumin for Food Packaging. Foods 2024; 13:2007. [PMID: 38998513 PMCID: PMC11240967 DOI: 10.3390/foods13132007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/21/2024] [Accepted: 06/22/2024] [Indexed: 07/14/2024] Open
Abstract
Due to the growing concerns surrounding microbial contamination and food safety, there has been a surge of interest in fabricating novel food packaging with highly efficient antibacterial activity. Herein, we describe novel photodynamic antibacterial konjac glucomannan (KGM)/polyvinylpyrrolidone (PVP) nanofibers incorporated with lignin-zinc oxide composite nanoparticles (L-ZnONPs) and curcumin (Cur) via electrospinning technology. The resulting KGM/PVP/Cur/L-ZnONPs nanofibers exhibited favorable hydrophobic properties (water contact angle: 118.1°), thermal stability, and flexibility (elongation at break: 241.9%). Notably, the inclusion of L-ZnONPs and Cur endowed the nanofibers with remarkable antioxidant (ABTS radical scavenging activity: 98.1%) and photodynamic antimicrobial properties, demonstrating enhanced inhibitory effect against both Staphylococcus aureus (inhibition: 12.4 mm) and Escherichia coli (12.1 mm). As a proof-of-concept study, we evaluated the feasibility of applying nanofibers to fresh strawberries, and the findings demonstrated that our nanofibers could delay strawberry spoilage and inhibit microbial growth. This photodynamic antimicrobial approach holds promise for design of highly efficient antibacterial food packaging, thereby contributing to enhanced food safety and quality assurance.
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Affiliation(s)
- Huimin Xiao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lin Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Nitong Bu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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3
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Deng L, Li Y, Zhong G, Lei W, Peng Y, Zhu Z. Effects of Starch Addition on KGM Sol's Pasting, Rheological Properties, and Gel Texture. ACS OMEGA 2023; 8:33299-33309. [PMID: 37744872 PMCID: PMC10515340 DOI: 10.1021/acsomega.3c02265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023]
Abstract
Konjac tofu is an irreversible gel formed by removing the acetyl group from konjac glucomannan (KGM) through alkaline heating. This type of food is low in calories, filling, and healthy, making it popular in the market. However, pure konjac tofu has a hard texture and lacks flavor when heated. To improve its taste and appearance, the effects of three varieties of native starch, including corn starch (CS), Canna edulis Ker starch (CKS), and potato starch (PS), on the formation of pasting and rheological properties of the KGM sol were investigated. Konjac tofu samples that incorporated different types and quantities of starch were prepared and analyzed in terms of structure, texture, dehydration, and flavor, with pure konjac tofu serving as a reference. The findings revealed that KGM mixed with a concentration of 4.2% CS, or 0.85% CKS, or 0.85% PS of the total mass produced a gel with the highest viscosity and a steady structure. Texture profile analysis indexes of these combinations were superior to pure KGM, and the konjac-starch tofu had a lamellar network structure. Thus, konjac tofu with the addition of starch has a higher quality texture, lower dehydration, and improved flavor compared to pure KGM gel.
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Affiliation(s)
- Liling Deng
- Chongqing
Key Laboratory of High Active Traditional Chinese Drug Delivery System,
Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 401331, PR China
- Chongqing
Key Laboratory for Pharmaceutical Metabolism Research, the Key Laboratory
of Biochemistry and Molecular Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Yan Li
- Chongqing
Key Laboratory of High Active Traditional Chinese Drug Delivery System,
Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 401331, PR China
| | - Geng Zhong
- College
of Food Science, Southwest University, Chongqing 400715, PR China
| | - Wen Lei
- College
of Food Science, Southwest University, Chongqing 400715, PR China
| | - Yongbo Peng
- Chongqing
Key Laboratory for Pharmaceutical Metabolism Research, the Key Laboratory
of Biochemistry and Molecular Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Zhaojing Zhu
- Chongqing
Key Laboratory of High Active Traditional Chinese Drug Delivery System,
Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 401331, PR China
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4
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Bu N, Huang L, Cao G, Pang J, Mu R. Stable O/W emulsions and oleogels with amphiphilic konjac glucomannan network: preparation, characterization, and application. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6555-6565. [PMID: 35587687 DOI: 10.1002/jsfa.12021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/18/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The stabilization of oil-in-water (O/W) emulsions has long been explored. Assembly of polymer networks is an effective method for stabilizing O/W emulsions. Konjac glucomannan (KGM) is a plant polysaccharide and the network of KGM gel is a good candidate for stabilizing O/W emulsions based on its high viscosity and thickening properties. However, natural KGM has strong hydrophilicity and is not able to offer interfacial activity. Octenyl succinic anhydride (OSA) is a hydrophobic molecule, which is widely used as thickener and stabilizer in food emulsions. In this work, the amphiphilic biopolymer (OSA-KGM) was fabricated by modifying the KGM with OSA. Furthermore, OSA-KGM biopolymer was used to prepare O/W emulsions, which were then freeze-dried and used to prepare oleogels as fat substitute for bakery products. RESULTS OSA-KGM had advanced hydrophobicity with water contact angle 81.13° and adsorption behavior at the oil-water interface, with interfacial tension decreasing from 18.52 to 13.57 mN m-1 within 1 h. The emulsification of OSA-KGM remarkably improved the stability of emulsions without phase separation during storage for 31 days. Oleogels with OSA-KGM showed good thixotropic and structure recovery properties (approximately 100%) and low oil loss (from 69.5% to 50.4%). Cakes made from oleogels had a softer texture than cakes made from peanut oil and margarine. CONCLUSION Amphiphilic biopolymer OSA-KGM shows advanced interfacial activity and hydrophobicity. This paper provides an insight into preparing stable O/W emulsions with a new biopolymer and oleogels potentially applied as fat substitute in bakery products. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Nitong Bu
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Liying Huang
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Guoyu Cao
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jie Pang
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ruojun Mu
- Fujian Agriculture and Forestry University, Fuzhou, China
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Formation of composite hydrogel of carboxymethyl konjac glucomannan/gelatin for sustained release of EGCG. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2022.04.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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6
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Song T, Liu H, Monto AR, Shi T, Yuan L, Gao R. Improvement of Storage Stability of Zein-Based Pickering Emulsions by the Combination of Konjac Glucomannan and L-Lysine. Front Nutr 2022; 9:955272. [PMID: 35898718 PMCID: PMC9309815 DOI: 10.3389/fnut.2022.955272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 06/20/2022] [Indexed: 12/04/2022] Open
Abstract
In this work, L-lysine (Lys) was employed together with konjac glucomannan (KGM) to fabricate zein colloidal particles (ZCPs) aimed at enhancing the storage stability of Pickering emulsions. With the addition of Lys, zein-Lys colloidal particles (ZLCPs) and zein-Lys-KGM (ZLKCPs) exhibited smaller particle size (133.64 ± 1.43, 162.54 ± 3.51 nm), polydispersity index (PDI) (0.10 ± 0.029, 0.13 ± 0.022), π value, and more adsorbed protein. Meanwhile, KGM underwent deamidation in an alkaline solution, so the emulsions stabilized by ZLKCPs exhibited a solid gel-like structure with higher storage modulus (G′) and loss modulus (G′′), leading to lower fluidity and better stability. The synergistic effects of Lys and KGM improved the stability of the emulsion. Hydrophobic interactions and hydrogen bonds were the main driving forces forming colloidal particles, which were determined by driving force analysis.
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Affiliation(s)
- Teng Song
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- College of Life Science, Anhui Normal University, Wuhu, China
| | - Hui Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Abdul Razak Monto
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Tong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Li Yuan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- *Correspondence: Li Yuan,
| | - Ruichang Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- Ruichang Gao,
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Yuan C, Zou Y, Cui B, Fang Y, Lu L, Xu D. Influence of cyclodextrins on the gelation behavior of κ-carrageenan/konjac glucomannan composite gel. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106927] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Fu CY, Chuang WT, Hsu SH. A Biodegradable Chitosan-Polyurethane Cryogel with Switchable Shape Memory. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9702-9713. [PMID: 33600161 DOI: 10.1021/acsami.0c21940] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cryogels are matrices that are formed in moderately frozen solutions of monomeric or polymeric precursors. They have the advantages of interconnected macropores, structural stability, and compressibility. Meanwhile, thermally induced shape memory is an attractive feature of certain functional materials. Although there have been several studies concerning shape-memory cryogels, little work has been conducted on shape-memory cryogels with biodegradability. In this study, a water-based biodegradable difunctional polyurethane with a shape-memory property was synthesized and used as the nanoparticulate crosslinker to react with chitosan to form a shape-memory cryogel. The thermally induced shape-memory mechanism was clarified using in situ wide-angle X-ray scattering (WAXS) and small-angle X-ray scattering (SAXS) during the shape-memory process. The in situ WAXS showed the changes of crystallinity in the crosslinker and the cryogel during the shape fixation and recovery processes. The in situ SAXS revealed the orientation of crystallinity of the crosslinker and the cryogel as the mechanism for shape memory. The strip-shape cryogel was deformed at 50 °C to U-shape and fixed at - 20 °C, which was squeezable at 25 °C and returned to the strip-shape at 50 °C in air. The shape recovery was further tested in water at two different temperatures. The injected cryogel recovered the U-shape in 4 °C water, representing elastic recovery, and transformed to a long strip in 37 °C water, representing the switchable shape memory. Moreover, the shape-memory cryogel sheet with a large dimension (10 mm × 10 mm × 1.1 mm cryogel sheet) or with complex structures (N, T, and U shapes) could be fixed as a rod, injected through a 16 G needle, and return to its original shape in 37 °C water, all of which could not be achieved by the conventional cryogel. Human mesenchymal stem cells grown in the shape-memory cryogel scaffolds displayed long-term proliferation and chondrogenic potential. Their unique injectability and cytocompatibility suggested potential applications of shape-memory cryogels as injectable and expandable templates for tissue engineering and minimally invasive surgery.
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Affiliation(s)
- Chih-Yu Fu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei Taiwan 10617, Republic of China
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan 30076, Republic of China
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei Taiwan 10617, Republic of China
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Formation of high amylose corn starch/konjac glucomannan composite film with improved mechanical and barrier properties. Carbohydr Polym 2021; 251:117039. [DOI: 10.1016/j.carbpol.2020.117039] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
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10
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Novel synthesis of mussel inspired and Fe3+ induced pH-sensitive hydrogels: Adhesion, injectable, shapeable, temperature properties, release behavior and rheological characterization. Carbohydr Polym 2020; 236:116045. [DOI: 10.1016/j.carbpol.2020.116045] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 02/15/2020] [Accepted: 02/19/2020] [Indexed: 12/11/2022]
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11
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Characterization and antibacterial activity evaluation of curcumin loaded konjac glucomannan and zein nanofibril films. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108293] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Robust microfluidic construction of konjac glucomannan-based micro-films for active food packaging. Int J Biol Macromol 2019; 137:982-991. [DOI: 10.1016/j.ijbiomac.2019.07.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/02/2019] [Accepted: 07/07/2019] [Indexed: 12/16/2022]
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13
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Du Y, Wang L, Mu R, Wang Y, Li Y, Wu D, Wu C, Pang J. Fabrication of novel Konjac glucomannan/shellac film with advanced functions for food packaging. Int J Biol Macromol 2019; 131:36-42. [DOI: 10.1016/j.ijbiomac.2019.02.142] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 01/28/2019] [Accepted: 02/23/2019] [Indexed: 01/28/2023]
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Wang L, Mu RJ, Lin L, Chen X, Lin S, Ye Q, Pang J. Bioinspired aerogel based on konjac glucomannan and functionalized carbon nanotube for controlled drug release. Int J Biol Macromol 2019; 133:693-701. [PMID: 31022486 DOI: 10.1016/j.ijbiomac.2019.04.148] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/17/2019] [Accepted: 04/22/2019] [Indexed: 11/24/2022]
Abstract
In this study, a facile marine bioinspired surface modification approach for carboxyl-functionalized multiwalled carbon nanotube (CCNT) and enhanced interfacial adhesion with the konjac glucomannan (KGM) matrix were illustrated to develop aerogels. Combined with FT-IR, XRD, Raman, TGA, XPS and SEM results, it was indicated that functionalized CCNT (PCCNT) is a reinforcer through hydrogen bond interactions in the aerogel formation process, which could be the main reason for the enhancement. The swelling and vitro release behavior of KGM/PCCNT aerogels were studied under two conditions using the drug 5-fluorouracil (5-FU). The release amount of 5-FU incorporated into KGM/PCCNT4 aerogel was about 48% at pH 1.2 and 62% at pH 6.8 after11 h, respectively. The results showed that the release rate of 5-FU from the KGM/PCCNT4 aerogel using PCCNT could be effectively controlled, suggesting potential applications for it as a drug carrier in targeted delivery in the biomedical filed.
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Affiliation(s)
- Lin Wang
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ruo-Jun Mu
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA 02138, USA
| | - Lizhuan Lin
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaohan Chen
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Sisi Lin
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qianwen Ye
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jie Pang
- College of food science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Gong J, Wang L, Wu J, Yuan Y, Mu RJ, Du Y, Wu C, Pang J. The rheological and physicochemical properties of a novel thermosensitive hydrogel based on konjac glucomannan/gum tragacanth. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.10.080] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Wang L, Lin L, Chen X, Tong C, Pang J. Synthesis and characteristics of konjac glucomannan films incorporated with functionalized microcrystalline cellulose. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.12.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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