Properties of gelatin films from giant catfish skin and bovine bone: a comparative study

Rawdkuen, Saroat; Sai‐Ut, Samart; Benjakul, Soottawat

doi:10.1007/s00217-010-1340-5

Cited by 57 publications

(55 citation statements)

References 27 publications

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“…Based on the previous studies, this is true in the case of cold-water fish species, such as cod, salmon and alaska pollock. However, researchers have pointed out that gelatin from tropical and subtropical warm-water fish species (tilapia, Nile perch, catfish) might have similar physicochemical properties to that of mammalian, depending on the species, type of raw material and processing conditions (Gilsenan and Ross-Murphy 2000;Gómez-Guillén et al 2009;Jamilah and Harvinder 2002;Muyonga et al 2004;Rawdkuen et al 2010) Research on fish gelatin is important for the development of methods to produce gelatin from fish processing as replacements for mammalian sources. Scale of production and quality of gelatin depend on extraction method (Montero and Gómez-Guillén 2000).…”

Section: Introductionmentioning

confidence: 99%

Optimization and physical properties of gelatin extracted from pangasius catfish (Pangasius sutchi) bone

et al. 2012

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In the present study, to establish the optimum gelatin extraction conditions from pangasius catfish (Pangasius sutchi) bone, Response Surface Methodology (RSM) with a 4-factor, 5-level Central Composite Design (CCD) was conducted. The model equation was proposed with regard to the effects of HCl concentration (%, X 1 ), treatment time (h, X 2 ), extraction temperature (°C, X 3 ) and extraction time (h, X 4 ) as independent variables on the hydroxyproline recovery (%, Y) as dependent variable. X 1 02.74 %, X 2 021.15 h, X 3 074.73°C and X 4 05.26 h were found to be the optimum conditions to obtain the highest hydroxyproline recovery (68.75 %). The properties of optimized catfish bone gelatin were characterized by amino acid analysis, SDS-PAGE, gel strength, TPA and viscosity in comparison to bovine skin gelatin. The result of SDS-PAGE revealed that pangasius catfish bone gelatin consisted of at least 2 different polypeptides (α 1 and α 2 chains) and their cross-linked chains. Moreover, the pangasius catfish bone gelatin was found to contain 17.37 (g/100 g) imino acids (proline and hydroxyproline). Pangasius catfish bone gelatin also indicated physical properties comparable with that of bovine and higher than those from cold water fish gelatin. Based on the results of the present study, there is a potential for exploitation of pangasius catfish bone for gelatin production. Furthermore, RSM provided the best method for optimizing the gelatin extraction parameters.

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Section: Introductionmentioning

confidence: 99%

Optimization and physical properties of gelatin extracted from pangasius catfish (Pangasius sutchi) bone

et al. 2012

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“…The resultant filtrate was freeze-dried and the dry matter was referred to as 'longan seed extract: LS'. The main phenolic fraction in longan seed extract are gallic acid (23.3 mg/100 seeds) and ellagic acid (156 mg/100 seeds) (Soong and Barlow 2006) Preparation of gelatin films Gelatin was extracted from farmed giant catfish skin according to the method of Rawdkuen et al (2010). Gelatin powder was mixed with distilled water to obtain the film-forming solution (FFS) with the protein concentration of 3 % (w/v).…”

Section: Extraction Of Phenolic Compoundsmentioning

confidence: 99%

Retardation of lipid oxidation using gelatin film incorporated with longan seed extract compared with BHT

2014

Self Cite

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The aim of the present work was to apply the gelatin films with different levels of longan seed extract (LS) or butylated hydroxytoluene (BHT) on retardation of lipid oxidation in soybean oil. The films incorporated with various concentrations of aqueous LS (0, 50, 100, 300, and 500 ppm) or BHT (50, and 100 ppm) were developed. The films had transmittance percentages of 60-80 % at 570 nm and showed good light barrier properties when the concentration of LS or BHT increased. About 97 % protein solubility and 41 to 54 % water solubility were obtained for the developed films. Antioxidative activity of gelatin films incorporated with LS increased markedly with increasing storage time as indicated by the increase in DPPH radical scavenging activity (41-50 %) (P < 0.05). Films incorporated with LS or BHT showed the preventive effect on lipid oxidation of soybean oil during 30 days of storage. At the level of 500 ppm, LS provided the highest efficacy for lipid oxidation retardation as evidenced by lower conjugated diene (CD) values (P>0.05). According to these findings, gelatin film incorporated with longan seed extract or BHT could be used as a tool to prolong the shelf-life of oily foods.

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“…The widespread interest in gelatin is mainly attributed to its biodegradability. Food, pharmaceutical and photographic industries are the main users of gelatin and the other natural polymers [7], which has several other technical applications [4,8]. The pharmaceutical applications of gelatin are based mainly on gel/film-forming properties.…”

Section: Introductionmentioning

confidence: 99%

Gelatin films dendronized selectively on one side: enhancing antimicrobial properties and water repellence

Schejtman¹,

Toselli

Strumia³

et al. 2015

Polym. Bull.

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To develop a material with potential biomedical applications, novel gelatin films were prepared by cold-casting method using cerium(III) and genipin solution as cross-linking agents, and surface modified with dendritic molecules. The structure and properties of the synthesized gelatin films were investigated by ATR-FTIR, mechanical tests, swelling behavior and water vapor permeability (WVP). The results showed that cross-linking could improve the mechanical and microbiological properties and lower the hydrophilic property of gelatin films. According to ATR-FTIR analysis, it can be concluded that the dendronization took place on only one of the faces of the films. The results have shown that the experimental methodology performed allows one-surface modification, so a novel biomaterial was obtained in the form of a film with good properties and dendritic structure in one face (hydrophobic and hydrophilic faces), rendering a multivalent structure useful in biomedicine development.

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Properties of gelatin films from giant catfish skin and bovine bone: a comparative study

Cited by 57 publications

References 27 publications

Optimization and physical properties of gelatin extracted from pangasius catfish (Pangasius sutchi) bone

Optimization and physical properties of gelatin extracted from pangasius catfish (Pangasius sutchi) bone

Retardation of lipid oxidation using gelatin film incorporated with longan seed extract compared with BHT

Gelatin films dendronized selectively on one side: enhancing antimicrobial properties and water repellence

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