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European Food Research and Technology

, Volume 243, Issue 4, pp 651–658 | Cite as

Effect of bug damage and mold contamination on fatty acids and sterols of hazelnut oil

  • Antonia Memoli
  • Donatella Albanese
  • Marco Esti
  • Claudio LombardelliEmail author
  • Alessio Crescitelli
  • Marisa Di Matteo
  • Ilaria Benucci
Original Paper

Abstract

Fatty acid and sterol content of oil from nuts (cv Tonda di Giffoni) affected by two different biotic damages were characterized. Hazelnuts were sorted by a visual inspection of the kernels in three different samples (cimiciate, apparently healthy and moldy). The oil was extracted and analyzed by gas–liquid chromatography coupled to a flame ionization detector for fatty acid and sterol composition. The higher level of total polyunsaturated fatty acids (PUFA) in cimiciato oil compared to apparently healthy nuts was associated with the decrease in total monounsaturated fatty acids, resulting in a higher unsaturated/saturated acid ratio, while the PUFA content in moldy nut oil was lower than in apparently healthy nut oil. In both damaged samples, the appearance of four new chromatography peaks could be due to the presence of hydroperoxides, as proved by carrying out a TLC analysis. The overall phytosterol amount decreased in both cimiciato and moldy nut oils compared to the apparently healthy nut oil, and the main differences were observed in terms of sitosterol, campesterol and clerosterol.

Keywords

Hazelnut oil Cimiciato (bug damage) Mold infection Fatty acid methyl esters (FAMEs) Sterols 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Compliance with ethics requirements

The research did not involve human participants and/or animals.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Antonia Memoli
    • 1
  • Donatella Albanese
    • 1
  • Marco Esti
    • 2
  • Claudio Lombardelli
    • 2
    Email author
  • Alessio Crescitelli
    • 3
  • Marisa Di Matteo
    • 1
  • Ilaria Benucci
    • 2
  1. 1.Department of Industrial EngineeringUniversity of SalernoSalernoItaly
  2. 2.Department for Innovation in Biological, Agro-food and Forest SystemsUniversity of TusciaViterboItaly
  3. 3.IMM-Cnr via Pietro CastellinoNaplesItaly

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