GC-FID and NMR Spectroscopic Studies on Gamma Irradiated Walnut Lipids
Joint Authors
Sinanoglou, Vassilia J.
Strati, Irini F.
Kokkotou, Katerina
Lantzouraki, Dimitra
Makris, Constantinos
Zoumpoulakis, Panagiotis
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Walnuts have an excellent fatty acid profile, beneficial for coronary heart diseases.
A diet rich in walnuts has shown to decrease the total and LDL cholesterol levels as well as lipoprotein levels.
In this study, the effects of different doses of γ-irradiation and different packaging conditions on proximate composition and fatty acid profile of walnuts (Juglans regia L.) were investigated merging data from different spectroscopic techniques.
Walnuts moisture, ash, fat, and protein content as well as fatty acid profile were evaluated immediately after irradiation.
GC-FID results showed that SFA increased and MUFA and PUFA decreased with the increase of irradiation dose.
Moreover, MUFA/SFA and PUFA/SFA ratios decreased P < 0.05 compared to control samples.
Furthermore, NMR spectroscopy was implemented to examine possible discrimination patterns based on irradiation dose and packaging.
This approach revealed the role of PUFA decrease with the parallel increase of irradiation dose while indicating the protective role of vacuum and MAP compared to air packaging.
In conclusion, at irradiation doses of up to 5 kGy, the walnuts retained the nutritional benefits of its fatty acids, in particular MUFA and PUFA.
Concerning the different types of packaging, greater stability in the nuts was observed using MAP packaging.
American Psychological Association (APA)
Sinanoglou, Vassilia J.& Strati, Irini F.& Kokkotou, Katerina& Lantzouraki, Dimitra& Makris, Constantinos& Zoumpoulakis, Panagiotis. 2015. GC-FID and NMR Spectroscopic Studies on Gamma Irradiated Walnut Lipids. Journal of Spectroscopy،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1070306
Modern Language Association (MLA)
Sinanoglou, Vassilia J.…[et al.]. GC-FID and NMR Spectroscopic Studies on Gamma Irradiated Walnut Lipids. Journal of Spectroscopy No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1070306
American Medical Association (AMA)
Sinanoglou, Vassilia J.& Strati, Irini F.& Kokkotou, Katerina& Lantzouraki, Dimitra& Makris, Constantinos& Zoumpoulakis, Panagiotis. GC-FID and NMR Spectroscopic Studies on Gamma Irradiated Walnut Lipids. Journal of Spectroscopy. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1070306
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070306