Pectin ‐Based Composites

Bátori, Veronika; Åkesson, Dan; Zamani, Akram; Taherzadeh, Mohammad J.

doi:10.1002/9781119441632.ch100

Cited by 3 publications

(3 citation statements)

References 69 publications

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“…However, pectin, the major component of orange peel, seems to have no significant effect in the above-mentioned composites. Nevertheless, pectin-based composites have been prepared with different reinforcing substances [12] and cellulosic plant fibres have 2 International Journal of Polymer Science certainly been of great interest because of their favourable mechanical properties as a potential substitute for glass fibres [13] in biocomposites. Cellulose reinforced pectin composites have been developed, for example, for tissue engineering applications [14] and for food packaging applications [15] from commercial sources.…”

Section: Introductionmentioning

confidence: 99%

Production of Pectin-Cellulose Biofilms: A New Approach for Citrus Waste Recycling

Bátori

Jabbari

Åkesson

et al. 2017

International Journal of Polymer Science

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While citrus waste is abundantly generated, the disposal methods used today remain unsatisfactory: they can be deleterious for ruminants, can cause soil salinity, or are not economically feasible; yet citrus waste consists of various valuable polymers. This paper introduces a novel environmentally safe approach that utilizes citrus waste polymers as a biobased and biodegradable film, for example, for food packaging. Orange waste has been investigated for biofilm production, using the gelling ability of pectin and the strength of cellulosic fibres. A casting method was used to form a film from the previously washed, dried, and milled orange waste. Two film-drying methods, a laboratory oven and an incubator shaker, were compared. FE-SEM images confirmed a smoother film morphology when the incubator shaker was used for drying. The tensile strength of the films was 31.67 ± 4.21 and 34.76 ± 2.64 MPa, respectively, for the oven-dried and incubator-dried films, which is within the range of different commodity plastics. Additionally, biodegradability of the films was confirmed under anaerobic conditions. Films showed an opaque appearance with yellowish colour.

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Section: Introductionmentioning

confidence: 99%

Production of Pectin-Cellulose Biofilms: A New Approach for Citrus Waste Recycling

Bátori

Jabbari

Åkesson

et al. 2017

International Journal of Polymer Science

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“…The solution is then casted over a smooth surface and dried to make a film [11]. Production of bioplastic films via solution casting method however has a high demand of energy which may avoid profitability of the process in large scales [12]. The molding method, on the other hand, usually has lower energy demand and processing time compared to the casting method, thus being preferred for industrial applications [13].…”

Section: Introductionmentioning

confidence: 99%

“…The improvements are caused by the strong interactions between the OH − and COO − groups of pectin and positively charged -NH groups of proteins. Lipids can form dipole-charge and dipole-dipole interactions with polar functional groups of pectin matrix and therefore, improve the characteristics of the pectin-based films [12,18]. Furthermore, materials containing a mixture of several organic compounds, e.g.…”

Section: Introductionmentioning

confidence: 99%

A Solvent-Free Approach for Production of Films from Pectin and Fungal Biomass

et al. 2018

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Self-binding ability of the pectin molecules was used to produce pectin films using the compression molding technique, as an alternative method to the high energy-demanding and solvent-using casting technique. Moreover, incorporation of fungal biomass and its effects on the properties of the films was studied. Pectin powder plasticized with 30% glycerol was subjected to heat compression molding (120 °C, 1.33 MPa, 10 min) yielding pectin films with tensile strength and elongation at break of 15.7 MPa and 5.5%, respectively. The filamentous fungus Rhizopus oryzae was cultivated using the water-soluble nutrients obtained from citrus waste and yielded a biomass containing 31% proteins and 20% lipids. Comparatively, the same strain was cultivated in a semi-synthetic medium resulting in a biomass with higher protein (60%) and lower lipid content (10%). SEM images showed addition of biomass yielded films with less debris compared to the pectin films. Incorporation of the low protein content biomass up to 15% did not significantly reduce the mechanical strength of the pectin films. In contrast, addition of protein-rich biomass (up to 20%) enhanced the tensile strength of the films (16.1-19.3 MPa). Lastly, the fungal biomass reduced the water vapor permeability of the pectin films.

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