The tail tendons of skipjack tuna (), a by-product from the meat-separation process in canned-tuna production, was used as an alternative source of collagen extraction. The acid-solubilized collagens using vinegar (VTC) and acetic-acid (ATC) extraction and pepsin-solubilized collagen (APTC) were extracted from tuna-tail tendon. The physiochemical properties and characteristics of those collagens were investigated. The obtained yield of VTC, ATC, and APTC were 7.88 ± 0.41, 8.67 ± 0.35, and 12.04 ± 0.07%, respectively. The determination of protein-collagen solubility, the effect of pH and NaCl on collagen solubility, Fourier-transform infrared spectroscopy (FTIR) spectrum, and microstructure of the collagen-fibril surface using a scanning electron microscope (SEM) were done. The protein solubility of VTC, ATC, and APTC were 0.44 ± 0.03, 0.52 ± 0.07, and 0.67 ± 0.12 mg protein/mg collagen. The solubility of collagen decreased with increasing of NaCl content. These three collagens were good solubility at low pH with the highest solubility at pH 5. The FTIR spectrum showed absorbance of Amide A, Amide B, Amide I, Amide II, and Amide III groups as 3286-3293 cm, 2853-2922 cm, 1634-1646 cm, 1543-1544 cm, and 1236-1237 cm, respectively. The SEM analysis indicated a microstructure of collagen surface as folding of fibril with small pore.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738187 | PMC |
| http://dx.doi.org/10.3390/polym14235329 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessment of Favipiravir and Remdesivir in Combination for SARS-CoV-2 Infection in Syrian Golden Hamsters.
Viruses
November 2024
Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK.
Favipiravir (FVP) and remdesivir (RDV) have demonstrable antiviral activity against SARS-CoV-2. Here, the efficacy of FVP, RDV, and FVP with RDV (FVP + RDV) in combination was assessed in Syrian golden hamsters challenged with SARS-CoV- 2 (B.1.
View Article and Find Full Text PDFThermal Resistance Enhancement and Wettability Amelioration of Poly(benzimidazole-aramid) Film by Silica Nanocomposites.
Polymers (Basel)
December 2024
Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai, Nomi 923-1292, Japan.
Polybenzimidazole (PBI) is a high-performance polymer known for its excellent thermal stability, mechanical strength, and chemical resistance, attributes that are derived from its unique structure comprising repeated benzene and imidazole rings. However, limitations such as relatively low thermal stability and moisture sensitivity restrict its application as a super engineering plastic. In this study, amide groups are incorporated into the PBI backbone to synthesize the copolymer poly(BI--A), effecting a structural modification at the molecular level.
View Article and Find Full Text PDFTissue Sources Influence the Morphological and Morphometric Characteristics of Collagen Membranes for Guided Bone Regeneration.
Polymers (Basel)
December 2024
Research Center in Dental Sciences (CICO-UFRO), Dental School, Faculty of Dentistry, Universidad de La Frontera, Temuco 4780000, Chile.
(1) Background: Collagen, a natural polymer, is widely used in the fabrication of membranes for guided bone regeneration (GBR). These membranes are sourced from various tissues, such as skin, pericardium, peritoneum, and tendons, which exhibit differences in regenerative outcomes. Therefore, this study aimed to evaluate the morphological and chemical properties of porcine collagen membranes from five different tissue sources: skin, pericardium, dermis, tendons, and peritoneum.
View Article and Find Full Text PDFThe Design of Hyperbranched Polymer Biguanide Molecules with a Four-Arm Branched Core Structure Enhances Antibacterial Properties.
Polymers (Basel)
December 2024
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China.
Amide-amine (PAMAM) dendrimers are biodegradable, non-immunogenic, genotoxic, and biocompatibible, which make them excellent materials for biological applications. In order to reduce the cytotoxicity of the designed branched molecules, a four-armed branched nucleus (B4) of PAMAM dendrimers as hyperbranched molecules was fused with polyhexamethylene biguanide (PHMB) (A2); hyperbranched polymeric biguanides (PAPBs) with a four-arm central core PAMAM structure were synthesized. The bactericidal and cell toxicity tests showed that PAPB had excellent bactericidal activity against both Gram-positive bacteria and Gram-negative, and the chemical binding of PHMB and PAMAM had synergistic effects.
View Article and Find Full Text PDFMelting Behavior of Compression Molded Poly(ester amide) from 2,5-Furandicarboxylic Acid.
Polymers (Basel)
December 2024
Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.
PEA 46 is a biobased polymer with promising properties for sustainable packaging applications, which can be obtained via polymerization of a furan 2,5-dicarboxylic acid (2,5-FDCA) derivative and a diol monomer containing internal amide bonds (46 amido diol). In the literature, PEA 46 showed a complex series of thermal transitions during DSC scans. For this reason, in this initial exploratory study PEA 46 was subjected to compression molding and the melting behavior of film samples was investigated with parallel DSC and WAXS analyses.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!