FTIR spectroscopic characterization of irradiated hazelnut (Corylus avellana L.)

Date

2007-01-01

Author

Dogan, Ayca
Siyakus, Galip
Severcan, Feride

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

196
views

0
downloads

Radiation induced molecular changes in macromolecular components of hazelnut tissues were investigated by mid-Fourier transform infrared (FTIR) spectroscopy. Irradiation dose of 1.5 kGy (low) and 10 kGy (high) were applied. The changes in frequency, signal intensity and intensity ratio of IR bands revealed that the unsaturated lipid concentration increased for low dose treated samples whereas it decreased and peroxidation appeared at high dose treatment. The low dose irradiation treatment, slightly increased the total lipid content whereas it dramatically decreased for high dose treatment. A slight increase in the lipid to protein ratio was observed for low dose treatment, whilst this ratio significantly decreased for high dose treatment. In addition, the high dose gamma-irradiation caused alterations in the structure of hazelnut proteins, as cross-linking and aggregation occured in protein molecules. These results indicate that FTIR spectroscopy can be successfully used to monitor food irradiation.

Subject Keywords

Food Science, Analytical Chemistry, General Medicine

URI

https://hdl.handle.net/11511/56524

Journal

FOOD CHEMISTRY

DOI

https://doi.org/10.1016/j.foodchem.2005.11.017

Collections

Department of Biology, Article

Suggestions

OpenMETU
Core

Effects of selenium supplementation on rat heart apex and right ventricle myocardia by using FTIR spectroscopy: A cluster analysis and neural network approach TOYRAN AL OTAİBİ, NESLİHAN; Severcan, Feride; Severcan, Mete; TURAN, Belma (Elsevier BV, 2008-10-01) The effects of selenium supplementation on apex and right ventricle myocardia of the rat heart were investigated using Fourier transform infrared (FTIR) spectroscopy by examining the changes in the frequency values of major absorptions arising from lipids and proteins. Cluster analysis was used to discriminate the selenium treated group from the control by utilizing two distinct spectral regions, belonging to absorptions arising from lipids and proteins, respectively. In addition, protein secondary structur...
FTIR studies of temperature influence on the DPPG model membrane Severcan, Feride; Dorohoi, Dana-Ortansa (Elsevier BV, 2008-09-17) The thermal changes induced in dipalmitoyl phosphatidyl glycerol (DPPG) model membranes were studied by FIR technique. When temperature increases, the DPPG model membrane passes from a high ordered gel phase to a few ordered liquid crystalline phase. The very quick passing between the two phases is characterized by the main phase transition temperature at which the bilayers contain equal percentages of ordered and disordered phospholipids. The main phase transition induces important changes in the symmetric...
FTIR and turbidity studies of fish oil-dipalmitoylphosphatidylcholine model membrane interactions Severcan, Feride; Bayari, S; Karahan, D (Elsevier BV, 1999-05-04) The temperature induced effects of fish oil on dipalmitoyl phosphatidylcholine (DPPC) model membranes (fish oil/lipid ratio: 2% w/w) were investigated by Fourier transform infrared (FTIR) smd UV/Visible spectroscopic techniques. In FTIR study the C-H and C=O stretching modes were investigated. The results of the FTIR study reveals that fish oil changes the physical properties of the DPPC multilamellar liposomes by broadening the phase transition profile and increasing the bandwidth of the CH2 stretching ban...
Modeling of dispersion in a polymeric chromatographic monolith Koku, Harun; Schure, Mark R.; Lenhoff, Abraham M. (Elsevier BV, 2012-05-11) Dispersion in a commercial polymeric monolith was simulated on a sample geometry obtained by direct imaging using high-resolution electron microscopy. A parallelized random walk algorithm, implemented using a velocity field obtained previously by the lattice-Boltzmann method, was used to model mass transfer. Both point particles and probes of finite size were studied. Dispersion simulations with point particles using periodic boundaries resulted in plate heights that varied almost linearly with flow rate, a...
Real-time benchtop NMR spectroscopy for the online monitoring of sucrose hydrolysis Soyler, Alper; Bouillaud, Dylan; Farjon, Jonathan; Giraudeau, Patrick; Öztop, Halil Mecit (Elsevier BV, 2020-01-01) The online monitoring of chemical reactions by using benchtop Nuclear Magnetic Resonance (NMR) spectroscopy has become increasingly attractive for the past few years. The use of quantitative online NMR spectroscopy is a promising alternative to traditional analytical methods with its rapid, quantitative and non-invasive nature that makes it applicable to complex and diverse biochemical mixtures like food systems. In this study, sucrose hydrolysis by invertase was chosen as a model reaction for online monito...

Citation Formats

A. Dogan, G. Siyakus, and F. Severcan, “FTIR spectroscopic characterization of irradiated hazelnut (Corylus avellana L.),” FOOD CHEMISTRY, pp. 1106–1114, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56524.