

(2011) Functional and bioactive properties of collagen and gelatin from alternative sources: A review.
Porcine gelatin effecra skin#
(2009) Antioxidant and functional properties of gelatin hydrolysates obtained from skin of sole and squid.

(2006) Soybean bioactive peptides: A new horizon in preventing chronic diseases. (2004) Antioxidant activity of peptides derived from egg white proteins by enzymatic hydrolysis. Davalos, A., Miguel, M., Bartolome, B., and Lopez-Fandino, R.In: Encyclopedia of Food Science and Technology. (1983) Spectrophotometric assay using o-phthaldialdehyde for determination of proteolysis in milk and isolated milk proteins. Graduate School, Chonnam National University, Korea. (2009) Comparative study of lactic acid bacteria for antioxidative and casein phosphopeptide-producing activities. (2013b) Casein hydrolysis by Bifidobacterium longum KACC91563 and antioxidant activities of peptides derived therefrom. Novel antioxidant peptide derived from the ultrafiltrate of ovomucin hydrolysate. (2012) Release of the cell-envelope protease PrtS in the growth medium of Streptococcus thermophilus 4F44. K., Perrin, C., Galia, W., Saulnier, F., Miclo, L., Roux, E., Driou, A., Humbert, G., and Dary, A. (2006) Characterization of equine milk and cheese making. (2005) Oxidative stress, mitochondrial dysfunction and cellular stress response in Friedrich's ataxia. Calabrese, V., Lodi, R., Tonon, C., D'Agata, V., Sapienza, M., Scapagnini, G., Mangiameli, A., Pennisi, G., Giuffrida Stella, A.(1993) Preserving food and health: Antioxidants make functional, nutritious preservatives. (2012) Amino acid composition and antioxidant activities of hydrolysates and peptide fractions from porcine collagen. These antioxidant assay results showed that digestion of gelatin by gastrointestinal enzymes prevents oxidative damage. However, the gallic acid equivalent (GE) at 48 h was $87.8M$ of trolox equivalent was found in the gelatin hydrolysate after 24 h hydrolysis with pancreatin treatment after pepsin digestion, whereas this activity decreased at 48 h. Similar effects were observed at 48 h incubation, that is, 61.5% for the DPPH assay and 69.3% for the ABTS assay. Antioxidant activity, as measured by ABTS, exhibited the highest values after 48-h incubation with pancreatin treatment after pepsin digestion. Electrophoretic analysis of the gelatin hydrolysis products showed extensive degradation by pepsin and pancreatin, resulting in an increase in the peptide concentration (12.1 mg/mL). This study investigated the antioxidant activity of gelatin by using different reagents, such as 2,2-azinobis-(3-ethylbenzothiazoline- 6-sulfonic acid) (ABTS), 2,2-di (4-tert-octylphenyl)-1-picrylhydrazyl (DPPH), and oxygen radical absorbance capacity-fluorescein (ORAC-FL) in a porcine gelatin hydrolysate obtained using gastrointestinal enzymes. Gelatin is a collagen-containing thermohydrolytic substance commonly incorporated in cosmetic and pharmaceutical products. (Department of Food Bioscience and Technology, Korea University) (Department of Animal Products and Food Science, Kangwon National University) (Animal Products and Development Division, National Institute of Animal Science, Rural Development Administration)
