Chicken Collagen from Law Market Value By-Products as an Alternate Source

Abstract

There has been much interest in investigating possible means of making collagen from underutilized chicken by-products and it will lead to an alternate source of collagen for use in various industries such as pharmaceuticals, cosmetics, biomedical materials, and the food industry. The objective of this research was to find methods to extract collagen from chicken skins and bones to compare the corresponding yield differences and analyze their properties. Collagen extracted by acetic acid, citric acid, alkali, one-step acetic acid and pepsin, and two-step acetic acid and pepsin extraction procedures was compared. Complete randomized design, Student's t-test, and Tukey's test were used to analyze the samples ( < 0.05). The recovered dry weights for the skin extractions were 6.1, 6.2, 5, 38.7, and 40.4% and those of bone extractions were 4.4, 4.1, 4.1, 19.1, and 20.6%, respectively. Protein, fat, and inorganic material contents of collagen preparations for skin were 62.7%, 1.5%, and 0.7% and for bone were 30.4%, 1.4%, and 0.7%, respectively. This study indicates that chicken by-products have high potential use as an alternate source of collagen.

Isolation, Purification and Characterization of Antioxidative Bioactive Elastin Peptides from Poultry Skin

“…Broilers are young chicken (Gallus gallus domesticus) of either sex of six to eight weeks of age. There are studies suggesting the potential of functional protein extraction from by-products of poultry industry (Fauzi et al, 2016;Mohammad et al, 2014;Munasinghe et al, 2014). The study suggests that collagen -another example of parent protein molecule -could be extracted from chicken skins and bones, which then can be utilized in various fields such as pharmaceuticals, biomedicine and food.…”

“…The study suggests that collagen -another example of parent protein molecule -could be extracted from chicken skins and bones, which then can be utilized in various fields such as pharmaceuticals, biomedicine and food. As collagen shares similar characteristics with elastin, it is worth investigating the potential of chicken skin for elastin extraction (Mecham, 2008;Munasinghe et al, 2014).…”

Utilization of Chicken By-Products to Form Collagen Films

“…Further, they suggested that more molecular cross-links between collagen and other components can be broken by the additional digestion with pepsin. After comparing yields of five different extraction procedures with 0.5 M acetic acid, 0.5 M citric acid, alkali extraction, one-step acetic acid and pepsin extraction and two-step acidic acid and pepsin extraction [10], one-step acetic acid and pepsin extraction was performed to extract collagen to form collagen films because of the high yield of collagen (38.7%).…”

“…NaCl. Five milliliters of the collagen solution (8 mg/mL) was mixed with 5 mL of NaCl solution of different concentrations (2,4,6,8,10, and 12%). The highest solubility (0.11 mg/mL) was obtained at 2% NaCl (Table 2).…”

Extraction Optimization and Characterization of Collagen from Chicken (Gallus gallus domesticus) Feet

“…Food, pharmaceutical, cosmetic, biomedical and nutraceutical industries are such common industries which used collagen in various applications (Munasinghe et al, 2014;Schmidt et al, 2016). Usually, collagen is used in form of gelatin and collagen peptide or also known as collagen hydrolysate (Aberoumand, 2012).…”