Preparation and characterization of arginine-modified chitosan/hydroxypropyl methylcellose antibacterial film

Song, Jinxing; Feng, Huafeng; Wu, Mengqi; Chen, Linxiao; Xia, Wei; Zhang, Wenqing

doi:10.1016/j.ijbiomac.2019.12.141

Cited by 49 publications

(12 citation statements)

References 38 publications

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“…The hydroxyl radical and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging methods were used to determine the antioxidant activity of the gelatin films. The antibacterial activity was evaluated by measuring the growth inhibition zone of the gelatin film against Staphylococcus aureus and Escherichia coli . The FEI Q45 environmental scanning electron microscope (SEM) was used to observe the microscopic morphology of the surface and cross-section of DFGA-G, and the results were compared with those of the blank gelatin film (G) and GA composite gelatin film (GA-G).…”

Section: Experimental Sectionmentioning

confidence: 99%

Biodegradable Anti-Ultraviolet Film from Modified Gallic Acid Cross-linked Gelatin

Guo

Tang

et al. 2021

ACS Sustainable Chem. Eng.

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The use of leather production waste to prepare degradable films is a sustainable production concept that can improve resource utilization and reduce the environmental pollution caused by traditional packaging waste. In this study, a biodegradable anti-ultraviolet film was prepared using gelatin obtained from tanning waste as the raw material and modified gallic acid as a cross-linking agent. The aldehyde group in the modified gallic acid reacts with the amino group in the gelatin molecule to form a stable covalent bond, which increases the cross-linking degree of the gelatin film. Compared with the conventional gelatin film, the modified gallic acid cross-linked gelatin film exhibited stronger tensile strength (6.357 MPa) and higher elongation at break (155.11%). The anti-ultraviolet capability of the film significantly increased as the conjugation system was enhanced owing to the formation of a Schiff base structure between the modified gallic acid and gelatin molecule, with strong UV absorption (T < 1%) in the range of 200–458 nm. The modified gallic acid cross-linked gelatin films also showed good antioxidant and antibacterial properties and excellent biodegradability, indicating its application potential in the packaging field.

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Section: Experimental Sectionmentioning

confidence: 99%

Biodegradable Anti-Ultraviolet Film from Modified Gallic Acid Cross-linked Gelatin

Guo

Tang

et al. 2021

ACS Sustainable Chem. Eng.

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“…If the peak of the spectrum from a single ingredient is stable after added to other ingredients, then those ingredients are compatible. Several aspects such as molecular weight, solution concentration, temperature, salinity, and pH can also a ect compatibility (Song et al, 2020) .…”

Section: Formula Compatibilitymentioning

confidence: 99%

Pre-Formulation Study on The Preparation of Skin Cosmetics

Ainurofiq

Maharani

Fatonah

et al. 2021

Sci. Technol. Indones

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Cosmetics have been a trend necessary for all people. The increasing need of the community in the use of cosmetics becomes the basis of the formulation of this article. Pre-formulation study for cosmetics is important to ensure that the final preparation of the cosmetics is safe to use and has maintained quality. A pre-formulation study for cosmetics is a study of physicochemical characteristics associated with the substances used in the formulation of cosmetics preparation to produce a quality cosmetic product. The pre-formulation study described here includes evaluation of sensitivity and irritability, organoleptic, formulation compatibility, thermal effect, partition coefficient, stability, particle size, wettability, hygroscopicity, type of preparation, and pH. This review article is compiled by searching for literature associated with the topic studied. Taken together, this review suggests that the pre-formulation study described recommended to be performed during the information searching step related to the physicochemical properties of ingredients used for cosmetic preparations. All of the topic studied is beneficial to determine the quality of the ingredients within the preparation before formulation, therefore, the production of cosmetic preparation can be more effective because it directs the choice of ingredients and optimum ingredient composition.

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“…In connection with polysaccharide-amino acid conjugates, several examples for medical applications have been recently reported [34][35][36], but applications in the field of agronomy are still at a very early stage of development. To the best of the authors' knowledge, there is only one recent study on chitosan oligomers-amino acid conjugates against Fusarium culmorum (Wm.G.…”

Section: Introductionmentioning

confidence: 99%

On the Applicability of Chitosan Oligomers-Amino Acid Conjugate Complexes as Eco-Friendly Fungicides against Grapevine Trunk Pathogens

et al. 2021

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In a context in which the incidence and severity of grapevine fungal diseases is increasing as a result of both climate change and modern management culture practices, reducing the excessive use of phytosanitary products in viticulture represents a major challenge. Specifically, grapevine trunk diseases (GTDs), caused by several complexes of wood decay or xylem-inhabiting fungi, pose a major challenge to vineyard sustainability. In this study, the efficacy of chitosan oligomers (COS)–amino acid conjugate complexes against three fungal species belonging to the Botryosphaeriaceae family (Neofusicoccum parvum, Diplodia seriata, and Botryosphaeria dothidea) was investigated both in vitro and in planta. In vitro tests led to EC50 and EC90 effective concentrations in the 254.6−448.5 and 672.1−1498.5 µg·mL−1 range, respectively, depending on the amino acid involved in the conjugate complex (viz. cysteine, glycine, proline or tyrosine) and on the pathogen assayed. A synergistic effect between COS and the amino acids was observed against D. seriata and B. dothidea (synergy factors of up to 2.5 and 2.8, respectively, according to Wadley’s method). The formulations based on COS and on the conjugate complex that showed the best inhibition rates, COS−tyrosine, were further investigated in a greenhouse trial on grafted vines of two varieties (”Tempranillo” on 775P and “Garnacha” on 110R rootstock), artificially inoculated with the mentioned three Botryosphaeriaceae species. The in planta bioassay revealed that the chosen formulations induced a significant decrease in disease severity against N. parvum and B. dothidea. In summary, the reported conjugate complexes may be promising enough to be worthy of additional examination in larger field trials.

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Preparation and characterization of arginine-modified chitosan/hydroxypropyl methylcellose antibacterial film

Cited by 49 publications

References 38 publications

Biodegradable Anti-Ultraviolet Film from Modified Gallic Acid Cross-linked Gelatin

Biodegradable Anti-Ultraviolet Film from Modified Gallic Acid Cross-linked Gelatin

Pre-Formulation Study on The Preparation of Skin Cosmetics

On the Applicability of Chitosan Oligomers-Amino Acid Conjugate Complexes as Eco-Friendly Fungicides against Grapevine Trunk Pathogens

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