Effect of pH and addition of corn oil on the properties of gelatin-based biopolymer films

Wang, Lizhe; Auty, Mark A.E.; Rau, Axel; Kerry, John F.; Kerry, Joe P.

doi:10.1016/j.jfoodeng.2008.04.030

Cited by 72 publications

(76 citation statements)

References 33 publications

(32 reference statements)

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“…This result was also similar to commercial gelatin approximately at 89.63% (Pranoto et al, 2006). The collagen dissolving rate is influenced by the material and time used for the pretreatment process (Wang et al, 2008;Said et al, 2011). The protein content of gelatin from buffalo hide increased from 0.3M to 0.6 M and 0.9 M. The increase in HCl concentration resulted more broken crosslink of both intra and intermolecular collagen that there are many proteins dissolved in the extraction process.…”

Section: Chemical Composition Of Hide and Gelatinsupporting

confidence: 69%

The effect of pretreatment using hydrochloric acid on the characteristics of buffalo hide gelatin

Mulyani

Setyabudi

Pranoto

et al. 2017

J. Indonesian Trop. Anim. Agric.

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ABSTRAKTujuan penelitian adalah untuk mengidentifikasi variasi konsentrasi asam klorida terhadap yield dan sifat fisikokimia gelatin kulit kerbau. Design penelitian menggunakan Rancangan Acak Lengkap, dengan perlakuan variasi konsentrasi asam klorida 0.3M, 0.6M, 0.9 M, 1. ABSTRACTThe objective of the research was to identify the effect of the concentration of hydrochloric acid (HCl) on yield and the characteristics of gelatin from buffalo hide. A completely randomized design was used with various concentrations of HCl treatment 0.3M, 0.6M, 0.9 M, 1.2 M and 1.5M, and four times replication, followed by least significant difference test. The HCl concentration gave significantly effect (P<0.05) on yield, viscosity, pH, gel strength and redness of gelatin. The highest yield (29.17%) was obtained at a concentration of HCl 0.9M. The highest gel strength and viscosity at concentration of 1.2M, were 293.41g bloom and 22.17 cp, respectively. The pH of the gelatin were 5.08 to 5.52. The lightness level (L*) was 69.92-70.97, whereas the redness r a n g e d (a*) from 0.55 to 1.54 and the yellowness r a n g e d (b*) from 17.54 to 19.59. The moisture, protein and ash concentrations of gelatin were 7.05±0.07-8.92±0.06%, protein content of 83.38±0.06 -91.11±0.03%, and the ash content 0.53 ± 0.04 to 1.23 ± 0.09%, respectively. Based on the spectra absorption of infrared were detected four areas amides: amide A (3402.43-3448.72 cm-1), amide I (1635.65 cm-1), amide II (1527.62 cm-1) and amide III (1242.16 cm-1). The differences in the concentration of HCl had impact on yield, characteristics and secondary structure of buffalo hide gelatin. The HCl concentration at 0.9M was the optimum condition to obtain the highest yield. The characteristics of buffalo hide gelatin after pretreatment using hydrochloric acid had met the standards of GMIA (2012) .

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Section: Chemical Composition Of Hide and Gelatinsupporting

confidence: 69%

The effect of pretreatment using hydrochloric acid on the characteristics of buffalo hide gelatin

Mulyani

Setyabudi

Pranoto

et al. 2017

J. Indonesian Trop. Anim. Agric.

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“…Other authors [169] had similar results by using 25%-30% of palm oil. Moreover both water vapor permeability and oxygen permeability were shown to be affected by corn oil content and pH value [160]. Furthermore, other authors [170] found that increasing the content of citric acid and soy lecithin as emulsifiers in films reduced the barrier towards water vapor because of increased hydrophilicity of the films.…”

Section: Barrier Propertiesmentioning

confidence: 94%

“…The addition of palm oil [169] resulted in increased elongation at break but lower tensile strength. On the other hand, corn oil content linearly enhanced tensile strength and puncture strength, whereas pH had a stronger effect on elongation values [160].…”

Section: Mechanical Propertiesmentioning

confidence: 94%

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State of the Art in the Development and Properties of Protein-Based Films and Coatings and Their Applicability to Cellulose Based Products: An Extensive Review

et al. 2015

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Abstract:There is increasing research towards the substitution of petrochemicals by sustainable components. Biopolymers such as proteins, polysaccharides, and lipids derive from a variety of crop sources and most promisingly from waste streams generated during their processing by the agro food industry. Among those, proteins of different types such as whey, casein, gelatin, wheat gluten, soy protein or zein present a potential beyond the food and feed industry for the application in packaging. The general protein hydrophilicity promotes a good compatibility to polar surfaces, such as paper, and a good barrier to apolar gases, such as oxygen and carbon dioxide. The present review deals with the development of protein-based coatings and films. It includes relevant discussion for application in paper or board products, as well as an outlook on its future industrial potential. Proteins with suitable functionalities as food packaging materials are described as well as the different technologies for processing the coatings and the current state of the art about the coating formulations for selectively modulating barrier, mechanical, surface and end of life properties. Some insights onto regulations about packaging use, end of life and perspectives of such natural coating for decreasing the environmental impact of packages are given.

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“…In general, higher opaqueness, lower Tg and thermal degradation temperatures were reported with essential oils incorporation. Wang et al evaluated the effect of pH and corn oil addition on the mechanical properties of porcine skin gelatin films [68], obtaining an optimum film-forming solution with 55.18% of corn oil with a pH of 10.54 and a predictive value of tensile strength of 17.58 MPa, elongation at break of 305.90% and WVP of 44.21 g mm kPa −1 •d −1 •m −2 . These results suggest the interruption of protein-protein interactions with an increase in chain mobility in gelatin.…”

Section: Other Agentsmentioning

confidence: 99%

Gelatin-Based Films and Coatings for Food Packaging Applications

et al. 2016

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This review discusses the latest advances in the composition of gelatin-based edible films and coatings, including nanoparticle addition, and their properties are reviewed along their potential for application in the food packaging industry. Gelatin is an important biopolymer derived from collagen and is extensively used by various industries because of its technological and functional properties. Nowadays, a very wide range of components are available to be included as additives to improve its properties, as well as its applications and future potential. Antimicrobials, antioxidants and other agents are detailed due to the fact that an increasing awareness among consumers regarding healthy lifestyle has promoted research into novel techniques and additives to prolong the shelf life of food products. Thanks to its ability to improve global food quality, gelatin has been particularly considered in food preservation of meat and fish products, among others.

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Effect of pH and addition of corn oil on the properties of gelatin-based biopolymer films

Cited by 72 publications

References 33 publications

The effect of pretreatment using hydrochloric acid on the characteristics of buffalo hide gelatin

The effect of pretreatment using hydrochloric acid on the characteristics of buffalo hide gelatin

State of the Art in the Development and Properties of Protein-Based Films and Coatings and Their Applicability to Cellulose Based Products: An Extensive Review

Gelatin-Based Films and Coatings for Food Packaging Applications

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