Characterization of gelatin films prepared from under-utilized blue shark (Prionace glauca) skin

Limpisophon, Kanokrat; Tanaka, Munehiko; Weng, WuYing; Abe, Shuji; Osako, Kazufumi

doi:10.1016/j.foodhyd.2009.03.014

Cited by 102 publications

(83 citation statements)

References 29 publications

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“…This result was in agreement with Tongnuanchan et al (2013) who reported that root essential oils (ginger, turmeric and plai) incorporated into fish skin gelatin film decreased WVP of resulting films, especially with increasing essential oil amount. Limpisophon et al (2009) also reported that the increasing stearic acid from 0 to 100 % in the film-forming solution decreased WVP of gelatin-fatty acid emulsified films. It was noted that the addition of palm oil into gelatin film in combination with reduced amount of glycerol could decrease WVP of gelatin film effectively.…”

Section: Water Vapour Permeability (Wvp)mentioning

confidence: 87%

“…In contrast, EAB of film increased from 31.63 to 116.25 %. Limpisophon et al (2009) reported that increasing glycerol content enhanced the flexibility of gelatin film from blue shark (Prionace glauca) skin. Glycerol with small size could distribute in the aqueous phase uniformly, in which the interaction between protein chains could be suppressed.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Influence of palm oil and glycerol on properties of fish skin gelatin-based films

2016

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Properties of fish skin gelatin film incorporated with palm oil at 50 and 75 % (w/w) as affected by glycerol at 0-30 % (w/w) were investigated. Increases in water vapour permeability and elongation at break along with decrease in tensile strength were noticed when levels of glycerol were increased (p \ 0.05). Decrease in L*-and a*-values with coincidental increase in b*-and DE*-values were observed in emulsified films when amount of palm oil incorporated increased (p \ 0.05). Light transmittance of all films increased as glycerol levels were increased (p \ 0.05). FTIR results suggested that the protein-protein interaction in film matrix decreased when palm oil was incorporated. Films added with palm oil had lower glass transition and degradation temperatures than control films. The addition of 75 % palm oil and 10 % glycerol improved water vapour barrier property of fish skin gelatin films without drastic alteration of mechanical properties.

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Section: Water Vapour Permeability (Wvp)mentioning

confidence: 87%

Section: Mechanical Propertiesmentioning

confidence: 99%

Influence of palm oil and glycerol on properties of fish skin gelatin-based films

2016

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“…The increase in thickness of films with the increase in protein concentration has been reported in bigeye and brownstripe red snapper skin gelatin films due to more protein aggregation [25,26]. Similarly, the influence of chitosan on the thickness of tuna skin gelatin-chitosan films was reported by Gomez-Estaca et al [20].…”

Section: Physical Propertiesmentioning

confidence: 66%

“…There are few earlier reports stating that the TS of gelatin films were influenced by the protein and chitosan concentration [26,27]. Also, many of the earlier reports suggested that the TS of gelatin films increased with an increasing MMT concentration [13,18].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Mechanical and Barrier Properties of Multi-Composite Shark Catfish (Pangasius fungaseous) Skin Gelatin Films with the Addition of Sorbitol, Clay and Chitosan Using Response Surface Methodology

Elango¹,

Robinson²,

Arumugam³

et al. 2015

J Mol Genet Med

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The effects of four variable factors such as protein, sorbitol, montmorillonite (MMT) and chitosan on the properties of multi-composite shark catfish skin gelatin films were evaluated based on Response Surface Methodology (RSM). Incorporation of chitosan had positive effect on tensile strength, Young's Modulus and water vapor transmission rate (p<0.05). On the other hand, chitosan and MMT had decreased the elongation of the films (p<0.05). The transparency of the gelatin film was increased by the addition of gelatin and chitosan, whereas it was decreased by the addition of MMT. From the present study, it may concluded that gelatin films with good mechanical and barrier properties could be achieved with 4.50% gelatin, 25% sorbitol, 0.37% MMT and 3.25% chitosan. Thus, multicomposite gelatin films with any desirable properties could be formulated based on the results of the response surface methodology and these films shall be suitable for edible films or coatings for fish and other food products in food processing industries.

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“…Gelatin was eхtracted from tilapia scales according to the method of Limpisophon et al (2009) with some modifications. Scales were soaked in a miхed solution containing 0.05 M NaOH and 25 % alcohol with a scale/solution ratio of 1:4 (w/v), then placed at 10°C overnight to remove lipids and non-collagenous proteins.…”

Section: Gelatin Extractionmentioning

confidence: 99%

Water resistance and mechanical property improvement of tilapia (Tilapia zillii) scale gelatin films by dehydrated thermal treatment

Weng

2014

J Food Sci Technol

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The effect of dehydrated thermal treatment on the tilapia scale gelatin films was investigated to improve their water resistance and mechanical properties. The gelatin extracted from tilapia scales was mainly composed of β-chain, α-chain and their degraded products with imino acid content of 21.2 %. When the films prepared from tilapia scale gelatin were heated at 80°C, no significant changes in the properties of films were observed. As heating temperature was increased to 100 or 120°C, the tensile strength of films was increased gradually with increasing thermal treatment time, while film solubility and protein solubility were decreased. Based on the SDS-PAGE analysis and the protein solubility of the gelatin films in various protein denaturant solutions, it was found that the cross-linking in the gelatin film network between β-chain and α-chain could be induced by heating at 120°C. It was revealed that the main interactions involved in the gelatin film formation were changed from ionic bonds and hydrogen bonds to hydrophobic interactions and covalent bonds, leading to improve water resistance properties of films.

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Characterization of gelatin films prepared from under-utilized blue shark (Prionace glauca) skin

Cited by 102 publications

References 29 publications

Influence of palm oil and glycerol on properties of fish skin gelatin-based films

Influence of palm oil and glycerol on properties of fish skin gelatin-based films

Mechanical and Barrier Properties of Multi-Composite Shark Catfish (Pangasius fungaseous) Skin Gelatin Films with the Addition of Sorbitol, Clay and Chitosan Using Response Surface Methodology

Water resistance and mechanical property improvement of tilapia (Tilapia zillii) scale gelatin films by dehydrated thermal treatment

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