Improvement of physcio-chemical and functional properties of alginate film by Acacia lignin

Aadil, Keshaw Ram; Prajapati, Dolly; Jha, Harit

doi:10.1016/j.fpsl.2016.09.002

Cited by 82 publications

(53 citation statements)

References 44 publications

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“…The addition of clay, both bentonite and halloysite, decreases the amount of transmittance of the films in the UV region of the spectra. The reduction of UV transmittance can be regarded as an improvement on the properties of the films as this would reduce the risk of lipid oxidation caused by UV radiation [ 58 ]. Films containing bentonite would be suitable for packaging applications regarding fresh foods, as they are highly transparent in the visible region and can provide additional protection from degradation caused by UV radiation.…”

Section: Resultsmentioning

confidence: 99%

Effect of Clay Nanofillers on the Mechanical and Water Vapor Permeability Properties of Xylan–Alginate Films

Naidu

John

2020

Polymers

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In this study, xylan–alginate-based films were reinforced with nanoclays (bentonite or halloysite) by the solvent casting technique. The effect of the nanoclay loadings (1–5 wt %) on various properties—mechanical, optical, thermal, solubility, water sorption, and water vapor permeability (WVP)—of the xylan–alginate films were examined for their application as food packaging materials. A 5 wt % loading of either bentonite or halloysite resulted in a 49% decrease of the WVP due to the impermeable nature of the silicate layers that make up both bentonite and halloysite. Thermal stability and solubility of the nanocomposite films were not significantly influenced by the presence of the nanoclays, whereas the optical properties were significantly improved when compared to neat xylan–alginate blend. In general, films reinforced with bentonite exhibited superior mechanical and optical properties when compared to both halloysite-based nanocomposite and neat films.

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Section: Resultsmentioning

confidence: 99%

Effect of Clay Nanofillers on the Mechanical and Water Vapor Permeability Properties of Xylan–Alginate Films

Naidu

John

2020

Polymers

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“…Aadil et al (2016a) also reported enhanced thermal stability of the lignin/gelatin films. On the other hand, the thermal stability of alginate films decreased with the incorporation of lignin (Aadil et al, 2016b). No significant differences were observed in the T g values of CMCbased films and CMC/lignin-based films, probably due to values close to T g of CMC (El-Sayed et al, 2011) and this type of lignin (65 � 0.36 � C).…”

Section: Thermal Behaviormentioning

confidence: 88%

“…On the other hand, with the incorporation of lignin into CMC-based films the molecules of lignin can interact with free CMC hydrophilic groups via hydrogen and hydrophobic interaction, thereafter, leading to a decrease of water molecules adhesion (Aadil et al, 2016b). Table 2 shows that CMC/lignin-based films present lower moisture content values (20.4%-23.1%) than CMC films, thus affecting the way that the films are absorbing water molecules (films were stored at room temperature and controlled 54% RH).…”

Section: Moisture Content and Water Solubilitymentioning

confidence: 99%

“…Several works have incorporated water soluble lignin, such as lignosulphonates and alkali lignins in different biopolymers (Aadil et al, 2016a;Aadil et al, 2016b;Núñez-Flores et al, 2012Bhat et al, 2013;Miranda et al, 2015;Shankar et al, 2015;Crouvisier-Urion et al, 2016. Aadil and co-authors (2016a,b) reported that alkali lignin reduced the water affinity of alginate and gelatin films, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Carboxymethyl cellulose-based films: Effect of organosolv lignin incorporation on physicochemical and antioxidant properties

Michelin

Marques

Pastrana

et al. 2020

Journal of Food Engineering

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Organosolv lignin was incorporated in carboxymethyl cellulose (CMC)-based films as a reinforcing and bioactive agent. Films were produced by the casting method using compatible and environmentally friendly solvents. The incorporation of lignin in CMC-based films was evaluated in term of morphology, physicochemical, barrier, mechanical and antioxidant properties. Solubility tests showed that lignin improved the water resistance of the films for approx. 60%. This behavior was also observed for the water vapor permeability, achieving a 20% reduction. Morphological characteristics suggested low compatibility between organosolv lignin and CMC matrix, revealed by the small aggregates homogeneously distributed in the film, through scanning electron microscopy, related to the self-assembly behavior of lignin. CMC/lignin-based films also presented higher thermal stability. Fourier transform infrared spectroscopy showed that incorporation of lignin led to small changes in the film's structure. Finally, organosolv lignin proved to be a promising material for the development of active CMCbased films due to its demonstrated antioxidant activity that can be useful to pack food products that suffer from undesirable oxidation reactions.

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“…The properties of polymeric matrices with sustainable origin, such as chitosan, gelatin, starch, soy protein, and whey protein isolate, can be improved by the use of lignin or lignin microparticles (Aadil, Prajapati, & Jha, 2016;Alzagameem et al, 2019;Julinová, Slavík, Vyoralová, Kalendová, & Alexy, 2018). Whey protein isolate (WPI) has the ability to form films, it is transparent and it has excellent oxygen permeability.…”

mentioning

confidence: 99%

Biopolymeric films based on whey protein isolate/lignin microparticles for waste recovery

Gomide

Oliveira

Luvizaro

et al. 2020

J Food Process Engineering

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Lignin is a source of phenolic compounds. It can be an excellent raw material for the production of films with whey protein isolate (WPI). The present study investigates WPI films with lignin microparticles (LMP). The structural, morphological, physical (thermal and mechanical analysis, water vapor barrier, color parameters, and transparency) properties, and the antioxidant properties were determined. The concentration of LMP were 0, 0.25, 0.50, and 0.75% (w/w). Structural analysis showed the addition of LMP to WPI‐based films did not change the film structure. A good dispersion of the microparticles is observed for the treatments containing 0.25 and 0.50% (w/w) LMP. In the concentrations of WPI and LMP used, an improvement in the thermal (increase of 13.46°C in Tg) and mechanical properties (35% more resistant) were observed, as well as higher temperatures of degradation and lower water vapor barrier (12 and 16% for 0.25 and 0.50%, w/w, LMP). The films containing LMP showed antioxidant potential, with higher values for 0.75% (w/w) of LMP.Practical ApplicationsThe Whey Protein Isolate is by‐product of the cheese industry and Lignin is a by‐product of the cellulose, paper, and ethanol biorefineries. The lignin improved the resistance of packaging to handling, providing longer use time for the packaging. These two polymers combined interesting characteristics for the development of new active packaging, with antioxidant action, capable of reducing food degradation and expanding the shelf life of foods.

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Improvement of physcio-chemical and functional properties of alginate film by Acacia lignin

Cited by 82 publications

References 44 publications

Effect of Clay Nanofillers on the Mechanical and Water Vapor Permeability Properties of Xylan–Alginate Films

Effect of Clay Nanofillers on the Mechanical and Water Vapor Permeability Properties of Xylan–Alginate Films

Carboxymethyl cellulose-based films: Effect of organosolv lignin incorporation on physicochemical and antioxidant properties

Biopolymeric films based on whey protein isolate/lignin microparticles for waste recovery

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