Enhancing Physiochemical Properties of Chitosan Films Through Photo-crosslinking by Riboflavin

Zhu, Shengyu; Pei, Jiliu; Song, Yukang; Liu, Yu; Xue, Feng; Xiong, Xianrong; Li, Chen

doi:10.1007/s12221-022-0278-0

Cited by 2 publications

(5 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Discussioncontrasting

confidence: 60%

“…Remarkably, the type of drying method employed did not have a significant effect on the extraction percentage of LM. Notably, this performance exceeds the extraction yield reported by Vargas Rodríguez et al 45 and is approximately half of the extraction yield reported by Zhu et al 23 It is worth mentioning that the extraction conducted in this study lasted for 10 min, whereas the extraction reported by Zhu et al 23 was carried out for 1 h. Hence, as shown in Figure 1, we observe that drying the LM in the oven results in a slower process, leading to the formation of larger physical cross-links. On the other hand, freeze-dried LM exhibits a more porous structure due to water sublimation, resulting in slightly weaker physical cross-links.…”

Section: Extraction Of Mucilagecontrasting

confidence: 56%

“…The average yields of the LM extraction, both oven‐dried and lyophilized, were 5.9% and 5.2%, respectively; this is 10 times (0.47 ± 0.01%) the reported extraction of nopal mucilage (NM) 45 and half of the extract reported in reference Zhu et al 23 The reason is that in this work the solution of LS was left to boil for only 10 min (since abundant foam was generated and the viscosity was increased) instead of 1 h as reported by Zhu et al 23 Furthermore, we can deduce that the drying type has almost no effect on the extraction yield. When comparing the used quantities for the extractions of LM, as well as for the extractions of NM, there is a much greater difference in the quantity of nopal residue generated by 1 g of extracted mucilage, with respect to LM.…”

Section: Resultsmentioning

confidence: 67%

“…Moreover, some synthetic polymers based on polyglycolic acid, polylactic acid, polyacrylic acid, poly-ε-caprolactone, polyvinylpyrrolidone, polyvinyl alcohol (PVA), and polyethyleneglycol exhibit healing properties in vivo and in vitro, and they improve re-epithelization. [21][22][23] Linseed gum (FG) is a subproduct derived from the production of linseed flour (Linum usitatissimum), useful as a food thickener, emulsifier, and foaming agent. FG is usually recovered by the extraction from the shell with hot water or from the whole seed.…”

Section: Introductionmentioning

confidence: 99%

“…This is the case of important polysaccharides such as mucilages and gums, glucosamine glycans, and chitin/chitosan (CH). Moreover, some synthetic polymers based on polyglycolic acid, polylactic acid, polyacrylic acid, poly‐ε‐caprolactone, polyvinylpyrrolidone, polyvinyl alcohol (PVA), and polyethyleneglycol exhibit healing properties in vivo and in vitro, and they improve re‐epithelization 21–23 …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Fabrication of poly(acrylic acid)/chitosan/linseed mucilage films: Thermal and mechanical properties

Corona‐Rivera,

Velasco,

Ovando‐Medina

et al. 2024

Polymer Engineering & Sci

View full text Add to dashboard Cite

The use of biodegradable polymers in the plastics industry has been increasing in recent years. The study of the chemical, physical, thermal, and mechanical properties of films based on biodegradable components is of interest to technologists because these properties determine their applicability for food packaging. In this work, films based on natural polymers such as linseed mucilage (LM) and chitosan (CH), as well as poly(acrylic acid) (PAA) were obtained through the casting method and using V‐50 as the initiator. The films were characterized through Fourier Transform Infrared spectroscopy, and thermogravimetric analysis, and their water absorption and swelling capacity, and thermal and mechanical properties were determined. Homogenous flexible, translucid, amber‐colored films, with low absorption and solubility in water were obtained. It was demonstrated through Fourier Transform Infrared analysis the chemical interaction between C–H, CO, and C–O chemical groups of LM, CH, and PAA. In addition, films showed high resistance to thermal decomposition between 125 and 425°C. The mechanical tests of tension allowed the composition of LM in the film, the behavior variates between a plastic and/or elastic material and with tensile strength (Rm) values between 10.8 and 16.4 MPa and elastic modulus (E) values between 56.2 and 169.2 GPa, we observed that at higher quantities of LM and thickness, both E and Rm tend to increase, while %EL decreases. This led us to conclude that the material transitioned from ductile and malleable to rigid and brittle. The films obtained with different ratios of LM/CH/PAA may exhibit a semi‐interpenetrating polymeric networking type morphology.Highlights Thermal and mechanical properties are of interest in food packaging materials. Water absorption can impact the packaged food. Films can be processed on existing machines for conventional plastics. Some conventional plastics could be replaced by these biodegradable films. Biodegradable films are of great interest to the industry of food packaging.

show abstract

Section: Discussioncontrasting

confidence: 60%

Section: Extraction Of Mucilagecontrasting

confidence: 56%