Thermal and oxidative stability of Atlantic salmon oil (Salmo salar L.) and complexation with beta-cyclodextrin

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Hadaruga D. I., Ünlüsayın M., Gruia A. T., Birau (Mitroi) C., Rusu G., Hadaruga N. G.

BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, cilt.12, ss.179-191, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12
  • Basım Tarihi: 2016
  • Doi Numarası: 10.3762/bjoc.12.20
  • Dergi Adı: BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.179-191
  • Anahtar Kelimeler: Atlantic salmon oil (ASO), beta-cyclodextrin, differential scanning calorimetry, Karl Fischer titration, omega-3 fatty acid, thermogravimetry, POLYUNSATURATED FATTY-ACIDS, FISCHER WATER TITRATION, FISH-OIL, ENCAPSULATION, MICROENCAPSULATION, IMPACT, OMEGA-3-FATTY-ACIDS, QUERCETIN, MEMBRANE, CHILDREN
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The thermal and oxidative stability of Atlantic salmon oil (Salmo salar L.) as well as its beta-cyclodextrin (beta-CD) complexation ability has been verified for the first time. The main omega-3 fatty acids, EPA and DHA, were significantly degraded, even at 50 degrees C. Their relative concentrations decrease from 6.1% for EPA and 4.1% for DHA to 1.7% and 1.5% after degradation at 150 degrees C, respectively. On the other hand, the relative concentrations of monounsaturated and saturated fatty acids remained constant or slightly increased by a few percent after degradation (e.g., from 10.7% to 12.9% for palmitic acid). Co-crystallization of ASO with beta-CD at a host-guest ratio of 1:1 and 3:1 from an ethanol-water mixture and kneading methods has been used for the preparation of beta-CD/ASO complexes. The analysis of the complexes by thermogravimetry, differential scanning calorimetry (DSC), and Karl Fischer titration (KFT) as well as the decrease of the "strongly-retained" water content confirm the formation of the inclusion compound. Furthermore, the DSC parameters correlate well with the KFT kinetic data for beta-CD/ASO complexes.