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The comparison of pressed seed oils features

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F17%3A43913333" target="_blank" >RIV/62156489:43510/17:43913333 - isvavai.cz</a>

  • Result on the web

    <a href="http://doi.org/10.15544/RD.2017.038" target="_blank" >http://doi.org/10.15544/RD.2017.038</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.15544/RD.2017.038" target="_blank" >10.15544/RD.2017.038</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The comparison of pressed seed oils features

  • Original language description

    The grape seed oils are characteristic by a very high content of substances. However, a lipid oxidation is the fundamental problem of the seed oils quality degradation. The important indicator for determining the specific type&apos;s purity, stability and level of oil degradation might be its colour parameter. The aim of this study was to identify the different varieties of oils, to evaluate its development during storage and to identify changes in different pressed seed oils. The CIELAB method and NIR spectroscopy were used during the research. Its main advantages include speed, accuracy and simplicity. The use of NIR seemed to be unsuitable as it could not reliably identify different kinds of grape seed oils. Only three kinds of grape seed oils out of six were identified. Contrary, the colour values obtained, using the CIELAB method, correlated significantly with the maturity of the individual varieties. This method can help to verify the authenticity of the oil. The CIELAB method also enabled colour changes in storage. The results show that after six months of storage, the oil got browner and the L* value had decreased. After another 6 months, the shift in values was not so significant. Similarly, the values of other parameters had changed. Using the CIELAB method can be recommended for testing of larger sample sizes for future use in the evaluation of the authenticity and quality of seed oils. The CIELAB method will not replace the standard methods but it might be used for pre-selection of tested samples.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    21101 - Food and beverages

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of the 8th International Scientific Conference Rural Development 2017

  • ISBN

    978-609-449-128-3

  • ISSN

    1822-3230

  • e-ISSN

    2345-0916

  • Number of pages

    6

  • Pages from-to

    80-85

  • Publisher name

    Aleksandras Stulginskis university

  • Place of publication

    Akademija

  • Event location

    Akademija

  • Event date

    Nov 23, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000527792100016