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Qin Q, Liu W, Gao B, Zhang X, Han L, Leong Sing S, Liu X. Capsicum leaf protein-based bionanocomposite films for packaging application: Effect of corn starch content on film properties. Food Chem 2024; 451:139449. [PMID: 38678654 DOI: 10.1016/j.foodchem.2024.139449] [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: 12/20/2023] [Revised: 03/27/2024] [Accepted: 04/20/2024] [Indexed: 05/01/2024]
Abstract
The addition of corn starch (CS) enhances the interfacial adhesion of the film-forming liquids (FFLs), weakening the internal relative molecular motion. As a result, the rheological properties and zeta potential values of the FFLs were affected. A tight spatial network structure between capsicum leaf protein (CLP), lignocellulose nanocrystals (LNCs) and CS can be formed through intermolecular entanglement and hydrogen bonding interactions. The crystallinity, thermal degradation temperature, tensile strength and water contact angle of the protein-based bionanocomposite films (PBBFs) increased with increasing CS addition. This is due to the transformation of the secondary space structure of the CLP inside the PBBFs and the increase in cohesion. However, the excessive addition of CS forms aggregated clusters on the surface of PBBFs, which increases the surface roughness of PBBFs and causes more light scattering. Therefore, the brightness and yellowness values of the PBBFs increase, and the transmittance decreases.
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Affiliation(s)
- Qingyu Qin
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China; Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Wenying Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Bing Gao
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Xinyan Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Swee Leong Sing
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Xian Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
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Qin Q, Gao B, Zhang X, Han L, Sing SL, Liu X. Effects of capsaicin loads on the properties of capsicum leaf protein-based nanocellulose composite films. Int J Biol Macromol 2024; 265:130904. [PMID: 38553392 DOI: 10.1016/j.ijbiomac.2024.130904] [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: 09/06/2023] [Revised: 02/21/2024] [Accepted: 03/13/2024] [Indexed: 04/18/2024]
Abstract
This study aims to enhance the functionality of conventional protein-based nanocellulose composite films (PNCF) to meet the high demand for natural antimicrobial packaging films. Capsicum leaf protein (CLP) and cellulose nanocrystals (CNCs) extracted from capsicum leaves were used as raw materials. Capsaicin, an essential antibacterial active ingredient in the capsicum plant, was used as an additive. The influence of different capsaicin loads on PNCF physicochemical and material properties was investigated under alkaline conditions. The results show that all film-forming liquids (FFLs) are non-Newtonian fluids with shear thinning behavior. When the capsaicin loading exceeds 20 %, the surface microstructure of PNCF changes from dense lamellar to rod-like. Capsaicin did not alter the PNCF crystal structure, thermal stability or chemical bonding. Capsaicin can be loaded onto the PNCF surface by intermolecular hydrogen bonding reactions with CLP and CNC, preserving capsaicin's biological activity. With increasing capsaicin loads from 0 % to 50 %, the mechanical and hydrophobic properties of PNCF decreased, whereas the diameter of the inhibition zone increased. All PNCFs have UV-blocking properties with potential applications in developing biodegradable food packaging materials. The results of this study provide a theoretical basis for the high-value utilization of capsicum cultivation waste and the preparation of novel PNCF.
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Affiliation(s)
- Qingyu Qin
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China; Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Bing Gao
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Xinyan Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Swee Leong Sing
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Xian Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
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Qin Q, Zhang X, Gao B, Liu W, Han L, Sing SL, Liu X. Insight into the effect of different nanocellulose types on protein-based bionanocomposite film properties. Int J Biol Macromol 2024; 257:127944. [PMID: 37951448 DOI: 10.1016/j.ijbiomac.2023.127944] [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: 07/07/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 11/14/2023]
Abstract
This paper investigates the effect of five different types of nanocellulose on the properties of protein-based bionanocomposite films (PBBFs) and the mechanism of action. The results show that TEMPO-oxidized nanocellulose (TNC) PBBFs have the smoothest surface structure. This is because some hydroxyl groups in TNC are converted to carboxyl groups, increasing hydrogen bonding and cross-linking with proteins. Bacterial nanocellulose (BNC) PBBFs have the highest crystallinity. Filamentous BNC can form an interlocking network with protein, promoting effective stress transfer in the PBBFs with maximum tensile strength. The PBBFs of lignin nanocellulose (LNC) have superior elasticity due to the presence of lignin, which gives them the greatest creep properties. The PBBFs of cellulose nanocrystals (CNCs) have the largest water contact angle. This is because the small particle size of CNC can be uniformly distributed in the protein matrix. The different types of nanocellulose differ in their microscopic morphology and the number of hydroxyl groups and hydrogen bonding sites on their surfaces. Therefore, there are differences in the spatial distribution and the degree of intermolecular cross-linking of different types of nanocellulose in the protein matrix. This is the main reason for the differences in the material properties of PBBFs.
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Affiliation(s)
- Qingyu Qin
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China; Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Xinyan Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Bing Gao
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Wenying Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Swee Leong Sing
- Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore.
| | - Xian Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
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Qi W, Tong X, Wang M, Liu S, Cheng J, Wang H. Impact of soybean protein isolate concentration on chitosan-cellulose nanofiber edible films: Focus on structure and properties. Int J Biol Macromol 2024; 255:128185. [PMID: 37977456 DOI: 10.1016/j.ijbiomac.2023.128185] [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: 08/18/2023] [Revised: 10/19/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023]
Abstract
Chitosan and cellulose nanofiber films are frequently employed as biodegradable materials for food packaging. However, many exhibit suboptimal hydrophobicity and antioxidant properties. To address these shortcomings, we enhanced the performance by adding different concentrations of soybean protein isolate (SPI) to chitosan-cellulose nanofiber (CS-CNF) films. As SPI concentration varied, the turbidity, particle size, and ζ-potential of the film-forming solutions initially decreased and subsequently increased. This suggests that 1 % SPI augments the electrostatic attraction and compatibility. Rheological analysis confirmed a pronounced apparent viscosity at this concentration. Analyses using Fourier transform infrared spectra, Raman spectra, X-ray diffraction, and Scanning electron microscope revealed the presence of hydrogen bonds and electrostatic interactions between SPI and CS-CNF, indicative of superior compatibility. When SPI concentration was set at 1 %, notable enhancements in film attributes were observed: improvements in tensile strength and elongation at break, a reduction in water vapor permeability by 8.23 %, and an elevation in the contact angle by 18.85 %. Furthermore, at this concentration, the ABTS+ and DPPH scavenging capacities of the film surged by 61.53 % and 46.18 %, respectively. Meanwhile, the films we prepare are not toxic. This research offers valuable insights for the advancement and application of protein-polysaccharide-based films.
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Affiliation(s)
- Weijie Qi
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiaohong Tong
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
| | - Mengmeng Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Shi Liu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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Han Y, Yan W, Hou Y, Wang D, Yu M. Xanthoceras sorbifolia Husk Extract Incorporation for the Improvement in Physical and Antioxidant Properties of Soy Protein Isolate Films. Foods 2023; 12:2842. [PMID: 37569111 PMCID: PMC10416942 DOI: 10.3390/foods12152842] [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: 07/05/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
With the increasing awareness of ecological and environmental protection, the research on eco-friendly materials has experienced a considerable increase. The objective of our study was to explore a novel soy protein isolate (SPI) film functionalized with antioxidants extracted from Xanthoceras sorbifolia husk (XSHE) as bio-based active packaging films. The films were evaluated in light of their structure, physical machinery, and antioxidant performance using advanced characterization techniques. The FTIR and microscopy results revealed the hydrogen-bond interaction between the SPI and XSHE and their good compatibility, which contributed to the improvement in various properties of the composite films, such as tensile strength (TS), UV blocking, and the water barrier property. As the XSHE content increased to 5%, the TS of the films dramatically increased up to 7.37 MPa with 47.7% and the water vapor permeability decreased to 1.13 × 10-10 g m m-2 s-1 Pa-1 with 22.1%. Meanwhile, the introduction of XSHE caused further improvement in the antioxidant capacity of films, and the release of active agents from films was faster and higher in 10% ethanol than it was in a 50% ethanol food simulant. Overall, SPI-based films functionalized with XSHE demonstrated promising potential applications in food packaging.
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Affiliation(s)
- Yingying Han
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China;
| | - Wentao Yan
- College of Forestry, Northwest A&F University, Yangling 712100, China; (W.Y.); (Y.H.); (D.W.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Northwest A&F University, Yangling 712100, China
| | - Yuping Hou
- College of Forestry, Northwest A&F University, Yangling 712100, China; (W.Y.); (Y.H.); (D.W.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Northwest A&F University, Yangling 712100, China
| | - Dongmei Wang
- College of Forestry, Northwest A&F University, Yangling 712100, China; (W.Y.); (Y.H.); (D.W.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Northwest A&F University, Yangling 712100, China
| | - Miao Yu
- College of Forestry, Northwest A&F University, Yangling 712100, China; (W.Y.); (Y.H.); (D.W.)
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Northwest A&F University, Yangling 712100, China
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Xie H, Wang Y, Ouyang K, Zhang L, Hu J, Huang S, Sun W, Zhang P, Xiong H, Zhao Q. Development of chitosan/rice protein hydrolysates/ZnO nanoparticles films reinforced with cellulose nanocrystals. Int J Biol Macromol 2023; 236:123877. [PMID: 36870658 DOI: 10.1016/j.ijbiomac.2023.123877] [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: 08/21/2022] [Revised: 02/12/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
In the present work, the composite films were obtained by the solution casting method from chitosan and rice protein hydrolysates, reinforced with cellulose nanocrystals (CNC) of different contents (0 %, 3 %, 6 % and 9 %). The influence of different CNC loadings on the mechanical, barrier and thermal properties was discussed. SEM showed the formation of intramolecular interactions between the CNC and film matrices, leading to more compact and homogeneous films. These interactions had a positive influence on the mechanical strength properties, which was reflected in higher breaking force of 4.27 MPa. The elongation dwindled from 132.42 % to 79.37 % with increasing CNC levels. The linkages formed between the CNC and film matrices reduced the water affinity, leading to a reduction in their moisture content, water solubility and water vapor transmission. Thermal stability of the composite films was also improved in the presence of CNC, by increasing maximum degradation temperature from 311.21 to 325.67 °C with increasing CNC contents. The strongest DPPH inhibition of the film was 45.42 %. The composite films exhibited the highest inhibition zone diameter against E. coli (12.05 mm) and S. aureus (12.48 mm), and the hybrid of CNC and ZnO nanoparticles exhibited stronger antibacterial activity than their single existent forms. The present work shows the possibility of obtaining CNC-reinforced films with improved mechanical, thermal and barrier properties.
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Affiliation(s)
- Hexiang Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Yufeng Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Kefan Ouyang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Liqiong Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Juwu Hu
- Jiangxi Academy of Sciences, Jiangxi 330029, China
| | | | - Weiwei Sun
- Hongsheng Beverage Group, Zhejiang 311200, China
| | - Peng Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Qiang Zhao
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China.
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