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Characterization of Acid-Soluble Collagen from Food Processing By-Products of Snakehead Fish (Channa striata)
| Content Provider | MDPI |
|---|---|
| Author | Truong, Thi Nguyen, Van Tran, Thanh Le, Thi |
| Copyright Year | 2021 |
| Description | The isolation of acid-soluble collagen (ASC) from by-products of snakehead fish (Channa striata), including skin and the mixture of skin and scale, has been investigated. The recovery yield of fish skin ASC (13.6%) was higher than ASC from fish skin and scale (12.09%). Both ASCs were identified as type I collagen and showed maximal solubility at pH 2. Collagen samples from the mixture of skin and scale had higher imino acid content (226 residues/1000 residues) and lower wavenumber in the amide I and amide III region (1642 and 1203 $cm^{−1}$, respectively) than the fish skin ASC (the imino acid content was 220 residues/1000 residues and the wavenumber in the amide I and amide III were 1663 and 1206 $cm^{−1}$, respectively. The difference scanning calorimeter (DSC) showed higher thermal stability in ASC from the mixture of skin and scale $(T_{d}$ of 35.78 °C) than fish skin ASC (34.21 °C). From the result, the denaturation temperature of ASC had a close relationship with the content of imino acid as well as with the degradation of α-helix in amide I and III. These results suggest that collagen could be obtained effectively from snakehead fish by-products and has potential as a realistic alternative to mammalian collagens. |
| Starting Page | 1188 |
| e-ISSN | 22279717 |
| DOI | 10.3390/pr9071188 |
| Journal | Processes |
| Issue Number | 7 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-07-08 |
| Access Restriction | Open |
| Subject Keyword | Processes Integrative and Complementary Medicine Paper and Wood Acid-soluble Collagen Snakehead Fish Fish Skin the Mixture of Skin and Scale Denaturation Temperature Ftir |
| Content Type | Text |
| Resource Type | Article |
