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This paper analysed the impact of rapeseed size and storage conditions on content of phosphorus and phospholipids in seeds and oils. The study was carried out with variably-sized seed fractions of „Bios” rapeseed cultivar and the extracted oils. The seed and oil samples were tested for phosphorus content and the phospholipid profiles. Seed samples were stored for one year at ambient temperature (20±4℃)...
The aim of research was to determine the effect of heat treatment of whole and milled seeds and methods of extraction on the content of phosphorus and profile of phospholipids. The experimental material consisted of 15 laboratory samples of rapeseed oil, and 1 sample of industrial hot-pressed oil. The phosphorus content, the share of phospholipids with column chromatography and the profile of phospholipids...
Celem badań było określenie wpływu zróżnicowanych warunków ogrzewania nasion rzepaku i gorczycy białej na wydajność tłoczenia oraz cechy olejów, jako potencjalnych surowców do produkcji biodiesla. Nasiona rzepaku i gorczycy poddano ogrzewaniu w trzech temperaturach (60, 80 i 100°C) przez okres 30, 60 i 90 min, a następnie wytłoczono oleje na laboratoryjnej prasie ślimakowej. Jakość olejów określono...
The aim of the study was to determine the effect of industrial conditions of heating rape, mustard, flax and camelina seeds on the pressing efficiency and quality of oil intended for biodiesel production. The research was conducted on rape, mustard, fibre flax and camelina seeds. Oils were pressed from seeds heated at 60, 70 and 80℃ using the Kocibórz Biorefinery production line equipment. The quality...
W pracy ustalono jakość 13 tłuszczów posmażalniczych z punktów gastronomicznych w aspekcie ich przydatności do produkcji biodiesla. Były to dwie próbki tłuszczów rekomendowanych jako rzepakowe oraz 11 próbek tłuszczów rekomendowanych jako palmowe, głównie po smażeniu frytek. W tłuszczach określono skład kwasów tłuszczowych oraz zawartość związków oddziałujących na przebieg transestryfikacji i cechy...
W pracy oceniono efektywność adsorpcyjnego usuwania zanieczyszczeń z tłuszczów posmażalniczych w kontekście ich wykorzystania do produkcji biodiesla. Materiał badawczy stanowiły trzy tłuszcze posmażalnicze pobrane z punktów gastronomicznych. W I etapie badano skuteczność trzech różnych dawek pojedynczych adsorbentów: krzemionki syntetycznej, ziemi bielącej, węgla aktywnego i żelu krzemionkowego. W...
The aim of the study was to perform comparative characterisation of different olive oils with respect to important quality features. Two groups of olive oils, 4 samples of extra virgin oil and 4 samples of refined oils (2 olive oil and 2 pomace) were used as the study material. The quality features under analysis included: the content of phenolic compounds, tocopherols, squalene, products of hydrolysis...
The aim of the study was to evaluate the labelling of selected vegetable oils and the provision of required and up-to-date information about their quality. Eight vegetable oils, including 2 rapeseed oils and 6 mixtures, were used as the study material. Evaluation of labelling involved analysing information provided on oil labels in terms of its compliance with the requirements set out in Tłuszcze...
The aim of the study was to determine the impact of hydration conditions on the content of phosphorus and the content and profile of phospholipids in hydrated oils and oil gums. The experiment was carried out on industrial hot-pressed oil which was subjected to hydration reaction with different additions of water (0.5, 1.5 and 3.0%) and at different temperatures (70 and 80oC). The following parameters...
The aim of researches was to indicate effective ways of usage oils obtained from of seeds of nine national varieties of rapeseed: four pollinated and two hybrid of winter rape as well as three pollinated of spring rape. Fatty acid composition was determined by gas chromatography and it was the base to determine omega-6 to omega-3 ratio as well as calculate oxidizability index. The researches showed...
W pracy określono stopień hydrolizy i utlenienia tłuszczów zawartych w nasionach oleistych, nasionach wyodrębnionych z pieczywa (stanowiących dodatek do tego pieczywa) oraz tłuszczów miękiszu pieczywa. Dodatkowo w tłuszczu miękiszu pieczywa określono skład kwasów tłuszczowych. Materiałem badawczym, pochodzącym z tej samej piekarni, było: 5 próbek nasion oleistych (słonecznik, soja, dynia, len, sezam)...
The aim of the study was to evaluate the quality of peanuts available on the Olsztyn market. The quality of researched peanuts was evaluated by determining degree hydrolysis and oxidation of oils and composition of fatty acids. Out of the nine peanut samples under examination, the content of primary and secondary products of oxidation was very high in eight of them, which could indicate their unsuitability...
The purpose of this study was to evaluate the additives of basil, oregano and paprika on the properties of bread supplemented with flax seeds and on lipid hydrolysis and oxidation. The breads were made from wheat flour type 650, with 5% addition of milled and boiled flax seeds and simultaneous 1% addition of frozen herbs: oregano or basil or 5% addition of dried red paprika fruits. The properties...
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