Vibrational heat capacity of silver carp collagen

Czerniecka‐Kubicka, Anna; Neilsen, Grace; Dickson, Matthew S.; Woodfield, Brian F.; Janus‐Kubiak, Marta; Kubisz, Leszek; Zarzyka, Iwona; Zielecki, W.; Skotnicki, Marcin; Hojan‐Jezierska, Dorota; Pyda, M.

doi:10.1016/j.ijbiomac.2020.07.051

Cited by 3 publications

(2 citation statements)

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“…The collagen gel used in the experiment was obtained from silver carp (Hypophthalmichthys molitrix) skin (FS collagen) Collagen was purchased from Collagen Active Science Sp. z o. o. Poznan, Poland.The FS collagen obtained by means of the method presented in [21] most probably exhibits a triple helix conformation which is unique to living organisms, which was verified by viscosity measurements and electrophoresis [3,46,47].…”

Section: Methodsmentioning

confidence: 73%

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Effects of Temperature on the FT NIR Raman Spectra of Fish Skin Collagen

et al. 2021

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The development of regenerative medicine turns attention toward native collagen as a biocompatible material. Particularly interesting is fish skin collagen, which is relatively easy to extract comparing mammalian tissues and free of some pathogens that are dangerous to humans. The paper presents results of IR Raman spectroscopy studies of silver carp (Hypophthalmichthys molitrix) skin collagen. As collagen properties result from its structure and conformation, both sensitive to temperature, FT NIR Raman spectroscopy is an excellent tool to characterize the molecular structure of fish skin collagen, particularly in temperature range typical for the manufacturing processes of biomedical products. Therefore, the Raman spectra were recorded in a temperature range of 300 to 403 K. The analysis of Raman spectra of prepared collagen films, particularly in the range of the bands related to amide I and amide III entities, showed a high content of α-helix and α-helix type molecular organization in fish skin collagen. Additionally, the secondary structure of the studied fish skin collagen is stable up to ~358 K. Heating to 403 K leads to irreversible changes in the molecular structure of fish skin collagen. It was found that the Raman spectrum of fish skin collagen preheated in this manner becomes similar to the spectrum of the collagen obtained from bovine Achilles tendon, whose secondary structure does not change up to 403 K.

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Section: Methodsmentioning

confidence: 73%

“…The molecular weight characteristics found by electrophoresis showed two distinct lines at~130 and 200 kDa, related to αand β-chains, respectively [44]. The amino acid content can be found elsewhere [46]. Collagen gel was dissolved in water and the acquired 10% solution was poured into a Petri dish and dried at room temperature.…”

Section: Methodsmentioning

confidence: 99%