Study on the Blend Film Prepared by Chitosan and Gelatin

Wang, An Na; Wu, Liang; Li, Xiu Ling; Yu, Sun; Wang, Jie; Wang, Shao Wen; Jia, Ai Xia; Wang, Chao; Zhang, Xu Dong; Fu, Qin; Xu, Xin

doi:10.4028/www.scientific.net/amr.201-203.2866

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…The addition of FSL-1 affected the chitosan matrix, which in turn increased the preservation solution’s viscosity, resulting in a more uniform formation of the surface coating by FCCP ( Zhang et al, 2010 ). By measuring the contact angle of FCCP on glass and polystyrene plastic plates, it can be seen that the nature of chitosan film is significantly influenced by FSL-1 and concentration ( Wang et al, 2011 ; Jagodzinska et al, 2021 ). Fresh-cut fruits and vegetables have both a high viscosity adhesion and a certain wettability to diffuse on their surface.…”

Section: Discussionmentioning

confidence: 99%

Development of a food preservative from sea buckthorn together with chitosan: Application in and characterization of fresh-cut lettuce storage

Feng

Xia²,

Tan³

et al. 2023

Front. Microbiol.

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The purpose was to create a novel composite food preservative for fresh-cut lettuce using flavonoids and chitosan from sea buckthorn leaves (SBL). Sea buckthorn leaves were extracted with ethanol as the extraction solvent and ultrasonic-assisted extraction to obtain flavonoid from sea buckthorn leaf crude (FSL), and then the FSL was secondarily purified with AB-8 resin and polyamide resin to obtain flavonoid from sea buckthorn leaf purified (FSL-1). Different concentrations of FSL-1 and chitosan were made into a composite preservative (FCCP) by magnetic stirring and other methods, containing 1% chitosan preservative (CP) alone, 0.5–2 mg/ml of FSL-1 and 1% chitosan composite preservative (FCCP-1, FCCP-2, FCCP-3, and FCCP-4), and the FSL-1 concentrations were analyzed the effect of FSL-1 concentration on the physicochemical properties of the composite preservatives, including their film-forming ability, antioxidant capacity and ability to prevent bacterial growth, was analyzed. To further investigate the effect of the combined preservatives on fresh-cut lettuce, different FCCPs were applied to the surface was stored at 4°C for 7 days. Then the changes in weight loss, hardness, browning index, total chlorophyll content, SOD and MDA were analyzed. It was used to assess the physicochemical indicators of fresh-cut lettuce throughout storage. According to the results of Fourier transform infrared spectroscopy, FSL-1 and chitosan interacted to form hydrogen bonds, and the contact angle and viscosity of FCCP increased on both horizontal glass and polystyrene plates, indicating the good film-forming properties of the composite preservation solution. With the diameter of the antibacterial zone of Staphylococcus aureus, Escherichia coli, Salmonella typhimurium, and Listeria monocytogenes being (21.39 ± 0.22), (17.43 ± 0.24), (15.30 ± 0.12), and (14.43 ± 0.24) mm, respectively. It was proved that the antibacterial activity of FCCP became stronger with the increase of FSL-1 concentration and had the best antibacterial effect on S. aureus. The complex preservative showed the best scavenging effect on ferric reducing antioxidant capacity, DPPH radicals (96.64%) and 2,2’-Azinobis- (3-ethylbenzthiazoline-6-sulphonate) (ABTS) radicals (99.42%) when FSL-1 was added at 2 mg/ml. When fresh-cut lettuce was coated with FCCP for the same storage time, various indicators of lettuce such as weight loss, hardness, browning index, SOD activity and MDA content were better than the control group showing good potential in fresh-cut vegetables and fruits preservation. FCCP holds great promise for food safety quality and shelf-life extension as a new natural food preservative. The waste utilization of sea buckthorn leaves can greatly improve his utilization and economic benefits.

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Section: Discussionmentioning

confidence: 99%

Development of a food preservative from sea buckthorn together with chitosan: Application in and characterization of fresh-cut lettuce storage

Feng

Xia²,

Tan³

et al. 2023

Front. Microbiol.

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“…HA is characterized by a Ca/P atomic ratio of 1.67, similar to that of biological apatite in human bones and teeth, thus making it very suitable for orthopedic, dental and maxillofacial repair [29,30].…”

Section: Chemical Structure Of Ha and Its Propertiesmentioning

confidence: 99%

Hydroxyapatite for Biomedical Applications: A Short Overview

et al. 2021

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Calcium phosphates (CaPs) are biocompatible and biodegradable materials showing a great promise in bone regeneration as good alternative to the use of auto- and allografts to guide and support tissue regeneration in critically-sized bone defects. This can be certainly attributed to their similarity to the mineral phase of natural bone. Among CaPs, hydroxyapatite (HA) deserves a special attention as it, actually is the main inorganic component of bone tissue. This review offers a comprehensive overview of past and current trends in the use of HA as grafting material, with a focus on manufacturing strategies and their effect on the mechanical properties of the final products. Recent advances in materials processing allowed the production of HA-based grafts in different forms, thus meeting the requirements for a range of clinical applications and achieving enthusiastic results both in vitro and in vivo. Furthermore, the growing interest in the optimization of three-dimensional (3D) porous grafts, mimicking the trabecular architecture of human bone, has opened up new challenges in the development of bone-like scaffolds showing suitable mechanical performances for potential use in load bearing anatomical sites.

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Study on the Blend Film Prepared by Chitosan and Gelatin

Cited by 2 publications

References 16 publications

Development of a food preservative from sea buckthorn together with chitosan: Application in and characterization of fresh-cut lettuce storage

Development of a food preservative from sea buckthorn together with chitosan: Application in and characterization of fresh-cut lettuce storage

Hydroxyapatite for Biomedical Applications: A Short Overview

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