Antioxidant profile of rapeseed oil dressings produced by seeds and tea addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F19%3A43877399" target="_blank" >RIV/62157124:16270/19:43877399 - isvavai.cz</a>

Výsledek na webu

<a href="https://fvhe.vfu.cz/files/Lenfeldovy_a_Hoklovy_dny_2019_Prednasky_a_postery_cd.pdf" target="_blank" >https://fvhe.vfu.cz/files/Lenfeldovy_a_Hoklovy_dny_2019_Prednasky_a_postery_cd.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Antioxidant profile of rapeseed oil dressings produced by seeds and tea addition

Popis výsledku v původním jazyce

The aim of the research was to evaluate antioxidant profile and stability of experimentally produced oil dressings. The material used for the research consisted out of chia, sesame, hemp seeds and tea that used in different concentration for the mixing with cold pressed rapeseed oil (Marathon cultivar). 8 different concentrations of oil dressings were formed. Not mixed cold pressed rapeseed oil served as the control sample. The samples were stored in dark and light during 3 months of storage. Antioxidant profile of oil dressings was measured by the estimation of total polyphenol, carotenoid and chlorophyll contents. The gained results are indicating low stability of measured antioxidant compounds in oil dressings during storage since chlorophyll and carotenoid contents decreased significantly (p&lt;0.05) after 3 months of storage, especially chlorophyll content was in the majority of the sample not detectable after 3 months of storage, both on light and in the dark. The polyphenol content extraction from used seeds and tea continued during storage and increased up to 4.97 mg/ml (the sample with 1% hemp seed addition). The extraction of polyphenol compounds is sometimes supported by light or heat, though differently according to different food matrixes. Out experiment emphasized the importance of storage conditions and packaging type of oil dressings that are starting to be more present on the market and more popular among consumers since their beneficial composition can be easily and in a short time period degraded.

Název v anglickém jazyce

Antioxidant profile of rapeseed oil dressings produced by seeds and tea addition

Popis výsledku anglicky

The aim of the research was to evaluate antioxidant profile and stability of experimentally produced oil dressings. The material used for the research consisted out of chia, sesame, hemp seeds and tea that used in different concentration for the mixing with cold pressed rapeseed oil (Marathon cultivar). 8 different concentrations of oil dressings were formed. Not mixed cold pressed rapeseed oil served as the control sample. The samples were stored in dark and light during 3 months of storage. Antioxidant profile of oil dressings was measured by the estimation of total polyphenol, carotenoid and chlorophyll contents. The gained results are indicating low stability of measured antioxidant compounds in oil dressings during storage since chlorophyll and carotenoid contents decreased significantly (p&lt;0.05) after 3 months of storage, especially chlorophyll content was in the majority of the sample not detectable after 3 months of storage, both on light and in the dark. The polyphenol content extraction from used seeds and tea continued during storage and increased up to 4.97 mg/ml (the sample with 1% hemp seed addition). The extraction of polyphenol compounds is sometimes supported by light or heat, though differently according to different food matrixes. Out experiment emphasized the importance of storage conditions and packaging type of oil dressings that are starting to be more present on the market and more popular among consumers since their beneficial composition can be easily and in a short time period degraded.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21101 - Food and beverages

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Hygiena a technologie potravin XLIX. Lenfeldovy a Höklovy dny: Sborník přednášek a posterů

ISBN

978-80-7305-828-9

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

15-21

Název nakladatele

Veterinární a farmaceutická univerzita Brno

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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