FTIR Study of Hydration Phenomena in Protein–Sugar Systems

Farhat, Imad A.; Orset, Sandra; Moreau, Patrick; Blanshard, J. M. V.

doi:10.1006/jcis.1998.5751

Cited by 66 publications

(47 citation statements)

References 18 publications

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“…In our previous FTIR study [21], the bands at 1647 cm −1 in the spectra corresponded to the gelatin’s amide I band due to CO stretching. The results showed a red shift in amide I band to the lower wavenumber indicating the hydrogen bonding of the CO in gelatin to the silanol hydrogen [38]. These interactions could be used to induce physical cross-linkage [39, 40].…”

Section: Discussionmentioning

confidence: 99%

Direct scaffolding of biomimetic hydroxyapatite-gelatin nanocomposites using aminosilane cross-linker for bone regeneration

Chiu

Ferreira

Luo

et al. 2012

J Mater Sci: Mater Med

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Hydroxyapatite-gelatin modified siloxane (GEMOSIL) nanocomposite was developed by coating, kneading and hardening processes to provide formable scaffolding for alloplastic graft applications. The present study aims to characterize scaffolding formability and mechanical properties of GEMOSIL, and to test the in vitro and in vivo biocompatibility of GEMOSIL. Buffer Solution initiated formable paste followed by the sol-gel reaction led to a final hardened composite. Results showed the adequate coating of aminosilane, 11–19 wt%, affected the cohesiveness of the powders and the final compressive strength (69 MPa) of the composite. TGA and TEM results showed the effective aminosilane coating that preserves hydroxyapatite-gelatin nanocrystals from damage. Both GEMOSIL with and without titania increased the mineralization of preosteoblasts in vitro. Only did titania additives revealed good in vivo bone formation in rat calvarium defects. The scaffolding formability, due to cohesive bonding among GEMOSIL particles, could be further refined to fulfill the complicated scaffold processes.

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Section: Discussionmentioning

confidence: 99%

Direct scaffolding of biomimetic hydroxyapatite-gelatin nanocomposites using aminosilane cross-linker for bone regeneration

Chiu

Ferreira

Luo

et al. 2012

J Mater Sci: Mater Med

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“…These chemical changes would lead to several changes in the mid-IR spectrum (Farhat, Orset, Moreau, & Blanshard, 1998). Fig.…”

Section: Ft-ir Analysis Of Lzm Trg and Lzmetrg Conjugatesmentioning

confidence: 98%

Production and properties of tragacanthin-conjugated lysozyme as a new multifunctional biopolymer

et al. 2015

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“…FTIR spectroscopy is a particularly useful technique for the study of protein-carbohydrate systems (14), as there are several readily identifiable regions of the midinfrared spectrum where the chemical fingerprints of carbohydrates and proteins do not overlap significantly. The most distinctive spectral features for proteins are the strong amide I and II bands centered at approximately at 1650 and 1540 cm -1 respectively.…”

Section: Resultsmentioning

confidence: 99%

Monitoring Chemical and Physical Changes during Thermal Flavor Generation

Turner

Sivasundaram

Ottenhof

et al. 2002

J. Agric. Food Chem.

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On-line techniques were developed to monitor chemical and physical changes occurring during the heating of skim milk powder (SMP). Atmospheric pressure chemical ionization mass spectrometry (APCIMS) followed the generation and release of volatile compounds from SMP in a packed-bed reactor. Operating conditions were optimized to avoid condensation of high boiling compounds such as maltol, and the system was highly reproducible (CV < 7%). Differential scanning calorimetry (DSC) of SMP identified a potential glass transition at an onset temperature of 67.9 degrees C and a series of exothermic events that were related to different stages of the Maillard reaction. No lactose crystallization was found after heating. Using a heated stage reflectance FTIR device, spectra were obtained at different temperatures. Analysis of the data showed a correlation between the intensity ratio at wavenumbers 1017 and 1064 cm(-1) and the glass transition measured by DSC. This FTIR system was not sensitive enough to detect Maillard intermediates. Combining data from the three techniques provides a fuller picture of the physical changes during the Maillard reaction and their effects on the chemical reactions.

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FTIR Study of Hydration Phenomena in Protein–Sugar Systems

Cited by 66 publications

References 18 publications

Direct scaffolding of biomimetic hydroxyapatite-gelatin nanocomposites using aminosilane cross-linker for bone regeneration

Direct scaffolding of biomimetic hydroxyapatite-gelatin nanocomposites using aminosilane cross-linker for bone regeneration

Production and properties of tragacanthin-conjugated lysozyme as a new multifunctional biopolymer

Monitoring Chemical and Physical Changes during Thermal Flavor Generation

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