Most vegetable oils obtained by cold pressing are yellow or yellowish-brown, with red or green tone. The color of the oil is a consequence of the presence of colored macromolecules (pigments). The most common natural pigments in the oils are carotenoids (yellow) and chlorophylls, green color pigments. The color is also affected by the content of various non-glyceride ingredients present in the oils, but also by various products formed during the inadequate management of the technological process. The aim of this study was to examine the content of the most abundant pigments (total carotenoids and total chlorophylls) in sunflower oil obtained by cold pressing of three confectionary (non-oily) sunflower hybrids (NS-H-6318, NS-H-6307 and NS-H-6308), as well as to determine their influence on instrumentally determined color parameters (CIE L*a *b* system and transparency). Negative a* values noticed in examined samples indicate presence of green pigments in examined oils.
Keywords:
cold pressed oils / sunflower / pigments / transparency / CIE L*a*b* / total carotenoids / total chlorophylls
Source:
Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021, 2021, 366-366
TY - CONF
AU - Romanić, Ranko
AU - Lužajić, Tanja
AU - Grahovac, Nada
AU - Hladni, Nada
AU - Kravić, Snežana
AU - Stojanović, Zorica
PY - 2021
UR - http://fiver.ifvcns.rs/handle/123456789/2347
AB - Most vegetable oils obtained by cold pressing are yellow or yellowish-brown, with red or green tone. The color of the oil is a consequence of the presence of colored macromolecules (pigments). The most common natural pigments in the oils are carotenoids (yellow) and chlorophylls, green color pigments. The color is also affected by the content of various non-glyceride ingredients present in the oils, but also by various products formed during the inadequate management of the technological process. The aim of this study was to examine the content of the most abundant pigments (total carotenoids and total chlorophylls) in sunflower oil obtained by cold pressing of three confectionary (non-oily) sunflower hybrids (NS-H-6318, NS-H-6307 and NS-H-6308), as well as to determine their influence on instrumentally determined color parameters (CIE L*a *b* system and transparency). Negative a* values noticed in examined samples indicate presence of green pigments in examined oils.
PB - East Sarajevo : Faculty of Agriculture
C3 - Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021
T1 - Color characteristic of non-refined oils obtained by cold pressing of the seeds oils obtained from confectionary sunflower hybrids
EP - 366
SP - 366
ER -
@conference{
author = "Romanić, Ranko and Lužajić, Tanja and Grahovac, Nada and Hladni, Nada and Kravić, Snežana and Stojanović, Zorica",
year = "2021",
abstract = "Most vegetable oils obtained by cold pressing are yellow or yellowish-brown, with red or green tone. The color of the oil is a consequence of the presence of colored macromolecules (pigments). The most common natural pigments in the oils are carotenoids (yellow) and chlorophylls, green color pigments. The color is also affected by the content of various non-glyceride ingredients present in the oils, but also by various products formed during the inadequate management of the technological process. The aim of this study was to examine the content of the most abundant pigments (total carotenoids and total chlorophylls) in sunflower oil obtained by cold pressing of three confectionary (non-oily) sunflower hybrids (NS-H-6318, NS-H-6307 and NS-H-6308), as well as to determine their influence on instrumentally determined color parameters (CIE L*a *b* system and transparency). Negative a* values noticed in examined samples indicate presence of green pigments in examined oils.",
publisher = "East Sarajevo : Faculty of Agriculture",
journal = "Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021",
title = "Color characteristic of non-refined oils obtained by cold pressing of the seeds oils obtained from confectionary sunflower hybrids",
pages = "366-366"
}
Romanić, R., Lužajić, T., Grahovac, N., Hladni, N., Kravić, S.,& Stojanović, Z.. (2021). Color characteristic of non-refined oils obtained by cold pressing of the seeds oils obtained from confectionary sunflower hybrids. in Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021
East Sarajevo : Faculty of Agriculture., 366-366.
Romanić R, Lužajić T, Grahovac N, Hladni N, Kravić S, Stojanović Z. Color characteristic of non-refined oils obtained by cold pressing of the seeds oils obtained from confectionary sunflower hybrids. in Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021. 2021;:366-366..
Romanić, Ranko, Lužajić, Tanja, Grahovac, Nada, Hladni, Nada, Kravić, Snežana, Stojanović, Zorica, "Color characteristic of non-refined oils obtained by cold pressing of the seeds oils obtained from confectionary sunflower hybrids" in Book of Abstracts, 12th International scientific agriculture symposium "Agrosym 2021", Jahorina, 07-10 October 2021 (2021):366-366.
