Extraction and Characterization of Type I Collagen from Parrotfish (Scarus sordidus Forsskål, 1775) Scale solubilized with the Aid of Acetic Acid and Pepsin

Table 1

Yield and colour parameters of ASC-PFS and PSC-PFS samples.

Sample	Yield (%)	Colour parameters				References
					WI
ASC-PFS	1.17 ± 0.19^a	61.74 ± 2.83^b	2.61 ± 0.05^a	6.15 ± 0.04^a	61.16 ± 2.79^b	This study
PSC-PFS	1.00 ± 0.19^a	74.81 ± 1.95^a	1.09 ± 0.24^b	6.14 ± 0.77^a	74.44 ± 1.99^a	This study
ASC-LFS	0.18 ± 0.03	79.94 ± 0.06	1.41 ± 0.15	3.67 ± 0.12	79.56 ± 0.58	[25]
PSC-LFS	0.60 ± 0.06	81.04 ± 0.45	0.17 ± 0.13	11.95 ± 1.34	77.57 ± 0.97	[26]
ASC-NTS	0.77	—	—	—	—	[34]
PSC-NTS	0.71	—	—	—	—
BMSC	—	65.41 ± 0.08	0.14 ± 0.01	3.16 ± 0.03	65.27	[35]
SHSC	—	89.49 ± 0.28	−0.30 ± 0.01	5.60 ± 0.13	88.09	[36]
CSKC	—	78.93 ± 0.59	−0.07 ± 0.03	1.42 ± 0.27	78.88 ± 0.58	[7]

Values are presented as the mean ± SD from triplicate (n = 3). Means provided in the same column with different notation are significantly different ( < 0.05). ASC-PFS: acid-soluble collagen from parrotfish scale; PSC-PFS: pepsin-soluble collagen from parrotfish scale; ASC-LFS: acid-soluble collagen from lizardfish scale; PSC-LFS: acid-soluble collagen from lizardfish scale; ASC-NTS: acid-soluble collagen from Nile tilapia scale; PSC-NTS: pepsin-soluble collagen from nile tilapia scale; BMSC: barramundi skin collagen; SHSC: snakehead fish skin collagen; CSKC: type I collagen from calfskin.