Use of wheat bran arabinoxylans in chitosan-based films: Effect on physicochemical properties

Costa, Maria J.; Cerqueira, Miguel A.; Ruiz, Héctor A.; Fougnies, C.; Richel, Aurore; Teixeira, J. A.; Aguedo, Mário

doi:10.1016/j.indcrop.2015.01.003

Cited by 72 publications

(48 citation statements)

References 31 publications

(46 reference statements)

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“…The chitosan film was the most transparent compared to the BGP film. Our results are in good agreement with the results of Costa et al (2015), who found that the opacity of plain chitosan film is lower than the opacity of wheat bran arabinoxylans-chitosan composite films. The 50BGP:50Ch film decreased the opacity from 24.82 to 14.53 % compared to the BGP film.…”

Section: Optical Properties Of the Bgp Composite Filmssupporting

confidence: 92%

Preparation and characterization of brewer’s spent grain protein-chitosan composite films

Lee

Yang

et al. 2015

J Food Sci Technol

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Brewer's spent grain protein (BGP) was extracted from a by-product of beer production process and utilized as a biodegradable film source. To improve the physical and mechanical property of the BGP film, chitosan (Ch) was incorporated and the BGP-Ch composite films were prepared. Elongation at break (E) of the BGP composite films increased from 7.16 to 36.38 % as the BGP content increased, whereas tensile strength (TS) increased from 4.32 to 41.95 MPa as the chitosan content increased. In addition, the water vapor permeability (WVP) of the BGP composite films decreased with the increase of chitosan content. As a result, the optimum composition for the preparation of the BGP composite film was 3 % BGP and 2 % chitosan solutions at a ratio of 50BGP:50Ch, and its TS, E, and WVP were 23.71 MPa, 36.73 %, and 2.82×10 −9 g m/m 2 s Pa, respectively. The incorporation of chitosan into the BGP film inhibited the growth of Listeria monocytogenes, Staphylococcus aureus, Salmonella Typhimurium, and Escherichia coli O157:H7 compared to BGP films without chitosan. The composite films also had 2,2-diphenyl-1-picrylhydrazyl radicalscavenging activity. These results indicate that the BGP composite film can be used as an antimicrobial and antioxidative packaging material for foods.

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Section: Optical Properties Of the Bgp Composite Filmssupporting

confidence: 92%

Preparation and characterization of brewer’s spent grain protein-chitosan composite films

Lee

Yang

et al. 2015

J Food Sci Technol

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“…It was observed that the films produced in this work were more opaque than the films of gelatin and PVA (Y < 3.1; x < 0.1 mm), or more opaque than the films of pigskin gelatin (Y < 0.5; x < 0.1 mm), which were extremely transparent, or more opaque than arabinoxylans and arabino‐xylooligosaccharides (Y < 16.49) . This high opacity of films with chitosan can prevent the occurrence of damages caused by excessive incidence of light in the food product, but can affect the consumer acceptance because they do not clearly see the product.…”

Section: Resultsmentioning

confidence: 66%

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Grande

Mangadlao

Fan

et al. 2017

Macromolecular Symposia

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The present study investigates the synthesis of graphene oxide‐chitosan (CS‐GO) nanocomposite films and their potential application in food packaging. Nanocomposite films were synthesized by cross‐linking graphene oxide with chitosan at high temperatures (120°C). The gel content assay showed an increasing in the % Gel of the nanocomposite film with the introduction of GO, from 64% to almost 89%, which could be related to the cross‐linking reaction between GO epoxy groups and chitosan amine and hydroxyl groups. Mechanical strength, thermal stability, infrared analysis and antimicrobial properties were also investigated. The tensile strength at break increased from 22.7 ± 1.2 to 6471.6 ± 1775.5 MPa when 0.1 wt% of GO was added. Thermal studies showed an increasing in the endothermal peak values with the increasing in GO content, which is also related to the increasing in the cross‐linking degree of the films and water interaction. Finally, the nanocomposites films were evaluated for antimicrobial properties, using E. coli K‐12 MG 1655 (Gram‐negative) and B. subtillis 102 (Gram‐positive). CS‐GO 0.6 wt% films presented the best microbial inactivation against E. coli and B. subtillis, with 22.83% and 54.93% inactivation, respectively. On the other hand, chitosan film (CS) control did not show any antimicrobial property. Therefore, cross‐linking of GO with chitosan improved significantly mechanical and antimicrobial properties of the films. These enhancements in the properties of the films made them suitable for application in food packaging.

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“…70 From a technological point of view, AXs have shown great potential as biomaterials due to their biocompatibility, biodegradability, and barrier properties to oxygen. 71,72 The extracted polymeric F-AX fractions show excellent potential for the design of bio-based materials, combining the good rheological and viscoelastic properties of the polysaccharide core with the inherent antioxidant properties of the phenolic moieties. Moreover, the FA could offer further interesting functionalities, such as UV absorbance 73 and the possibility for enzymatic crosslinking.…”

Section: Antioxidant Activities Of the Ax Fractionsmentioning

confidence: 99%

Sequential fractionation of feruloylated hemicelluloses and oligosaccharides from wheat bran using subcritical water and xylanolytic enzymes

et al. 2017

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Wheat bran is a major by-product of cereal production that still has limited use for advanced nutritional and material applications. A sequential process using subcritical water, membrane filtration and selective enzymatic treatments has been designed for the combined fractionation of functional high molar mass hemicelluloses (over 10 5 g mol −1 ) and oligosaccharides from wheat bran. This process not only offers increased total solid yield compared with conventional protocols based on alkaline extraction, but it also preserves the inherent functionalities of the phenolic groups that substitute the carbohydrate structures of the extracted hemicelluloses. Feruloylated arabinoxylans (F-AX) with high molar mass and significant radical scavenging activity can be isolated from the subcritical water extract. Structurally different oligosaccharides, including mixed-linkage β-D-glucan oligosaccharides (BGOs) and arabinoxylo-oligosaccharides (AXOs) can be recovered from the eluent after membrane filtration. The crosslinked residue after subcritical water extraction was further treated with xylanolytic enzymes to release valuable feruloylated arabinoxylo-oligosaccharides (FAXOs). The oligo-and polysaccharide fractions isolated from this sequential process show great potential for use as prebiotic or platform chemicals, and as polymeric matrices for carbohydrate-based materials with radical scavenging properties, respectively. IntroductionCereal processing generates large volumes of by-products that have not been exploited to their full potential for advanced nutritional and material applications. 1 Each ton processed by the wheat milling industry generates up to 0.25 tons of wheat bran that corresponds to 14-16% of the cereal kernel. 2 Due to its content of valuable biomacromolecules, such as polysaccharides (mainly hemicelluloses) and phenolic compounds, wheat bran has gained renewed interest as a raw material to be used in second generation biorefineries. 2-4Xylan is one of the most abundant biopolymers in nature as a major non-cellulosic component of plant cell walls. In particular, arabinoxylan (AX) constitutes the main hemicellulose in grasses and cereal grains, with an average composition of 20-40% depending on the species and tissue considered. View Article OnlineView Journal | View Issue substitutions. 9 Other methods have also been developed for the extraction and purification of AX from cereal by-products, including acid pretreatment, 11 microwave assisted extraction, 12 ultrasound assisted extraction, 13,14 and steam explosion extraction. 10,15 As an alternative, subcritical water extraction (SWE), also called pressurized hot water extraction (PHWE), appears as a promising green method for the isolation of hemicellulose fractions with preserved molecular functionalities and high molecular weight. The use of subcritical conditions (at temperature below critical point and pressure high enough to maintain liquid state) changes dramatically the properties of water, including density surface tension, polarity, vis...

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Use of wheat bran arabinoxylans in chitosan-based films: Effect on physicochemical properties

Cited by 72 publications

References 31 publications

Preparation and characterization of brewer’s spent grain protein-chitosan composite films

Preparation and characterization of brewer’s spent grain protein-chitosan composite films

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Sequential fractionation of feruloylated hemicelluloses and oligosaccharides from wheat bran using subcritical water and xylanolytic enzymes

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