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Monitorowanie autooksydacji oleju rzepakowego i slonecznikowego

100%

Ratusz K., Kowalski B., Bekas W., Wirkowska M.

Rośliny Oleiste - Oilseed Crops

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2005

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tom 26

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nr 1

211-220

2

Thermokinetic analysis of vegetable oil oxidation as an autocatalytic reaction

100%

Kowalski B.

Polish Journal of Food and Nutrition Sciences

|

1992

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tom 01

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nr 2

3

The international trade in sunflower seed oil of Poland and Ukraine

84%

Parlinska M., Oliinyk O., Van der Sluis E., Wasilewska E.

Electronic Journal of Polish Agricultural Universities. Series Economics

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2015

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tom 18

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nr 4

4

Predicting sunflower oil content in mixed fat spreads based on electrical properties

84%

Banach J. K., Zywica R., Zadroga I. U., Staniewska K.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2014

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nr 1

5

Physicochemiacal changes of post-frying sunflower oil

84%

Maniak B., Szmigielski M., Piekarski W., Markowska A.

International Agrophysics

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2009

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tom 23

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nr 3

243-248

6

Characterization and biological treatability of edible oil wastewaters

84%

Aslan S., Alyuz B., Bozkurt Z., Bakaoglu M.

Polish Journal of Environmental Studies

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2009

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tom 18

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nr 4

533-538

This study investigates the conventional characterization and biological treatability of two different wastewaters that originated from corn oil and sunflower oil refining processes. Our aims for characterization of wastewaters included: total and soluble chemical oxygen demand, total and soluble biological oxygen demand, suspended solid, oil and grease, pH, total kjeldahl nitrogen, ammonia nitrogen, total phosphor, phosphate, color and sulfate analyses. In corn oil wastewaters, total COD is portioned as 80% soluble COD, 20% particular COD, 3.4% total soluble inert COD, 0.5% total particular inert COD, whereas in sunflower oil wastewaters soluble COD, particular COD, total soluble inert COD, total particular inert COD are found as 81.7%, 18.3%, 1.9%, and 5.1%, respectively. In our characterization studies, BOD5/COD ratio were 0.15 and 0.2 for corn oil and sunflower oil wastewaters, respectively. These results indicate that wastewaters are not suitable for biological treatment. But investigation of COD fractions has pointed out that wastewaters contain mostly biodegradable organic substances.

7

Influence of the minor components of sunflower oil on emulsion stability

84%

Tugrul Masatcioglu M., Mert B., Tekin A., Koksel H.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

8

Determination of tocopherols content in sunflower oil during oxidation using fluorescence technique

84%

Gornas P., Sieger A., Dwiecki K., Nogala-Kalucka M., Polewski K.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2006

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tom 05

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nr 2

157-164

The fluorescence intensity of tocopherols originated from cold-pressed sunflower oil at different degree of oxidation in presence of l,2-dipalmitylo-sn-glicero-3- -fosfatidylocholine lipid (DPPC) membrane have been measured. It has been shown that fluorescence of tocopherol depends on amount of oil as well as on membrane concentration in the sample. Addition of oil with increasing peroxide value PV decreased the tocopherol fluorescence due to its disappearance in the sample. At constant membrane concentration chromatographically determined the amount of tocopherol in oil sample correlated with peroxide value and fluorescence intensity. Such results allowed us construct calibration curve which may be used for fast and accurate peroxide value determination using fluorescence technique.

9

Effect of selected lipid substrates on the process of biosynthesis of surface-active compounds by the Candida bombicola yeasts

84%

Gumienna M., Czarnecka M., Czarnecki Z.

Electronic Journal of Polish Agricultural Universities. Series Food Science and Technology

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2005

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tom 08

|

nr 2

The performed investigations were concerned with the possibility of utilisation of the yeasts ATCC 22214 Candida bombicola for the biosynthesis of surface active substances on substrates containing oleic acid, sunflower oil and post-deodorising condensate as carbon sources. Glucose was the source of hydrophilic carbon in the medium, whereas nitrogen was supplied by the yeast extract. The highest yields of biosurfactants (124.5 g·dm-3 - oleic acid, 116 g·dm-3 - sunflower oil and 118.5 g·dm-3 - post-deodorising condensate) were achieved using the medium in which 3 g of glucose and 0.05 g of yeast extract and 1 g of the fat substrate. The obtained biosurfactants, depending on the fat substrate applied in the culture medium, differed with respect to their appearance. The obtained preparations reduced the surface tension of water from 70 mN/m to approximately 32 mN/m.

10

Changes in physicochemical parameters and fatty acid composition of vegetable oils during conventional and microwave heating

84%

Ostasz L.

Polish Journal of Food and Nutrition Sciences

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2007

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tom 57

|

nr 4[B]

11

Utilization of used oils and fats for FAME biofuels production

67%

Wcislo G.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2010

|

tom 10

12

Zdolnosc szczepow termofilnego grzyba Thermomyces lanuginosus [syn.Humicola lanuginosa] do hydrolizy oleju slonecznikowego

67%

Janda K., Falkowski J., Stolarska A.

Żywność Nauka Technologia Jakość

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2003

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tom 10

|

nr 4

61-68

Celem niniejszej pracy była ocena zdolności szczepów termofilnego grzyba Thermomyces lanuginosa (syn. Humicola lanuginosa) do biosyntezy kompleksu egzoenzymów lipolitycznych. Materiał badawczy stanowiły 144 szczepy tego gatunku wyodrębnione z biohumusu, podłoża pieczarkowego, kompostu liściowego, kompostu ogrodowego, łuskanych orzechów laskowych oraz z surowego ziarna kawy. Hodowle prowadzono w temp. 55°C, na podłożu stałym z dodatkiem oleju słonecznikowego w ilości 1,5%. Jako indeks aktywności lipolitycznej przyjęto obliczony stosunek średnicy strefy hydrolizy do średnicy kolonii badanego szczepu (współczynnik R). Badania dowiodły, że wszystkie szczepy wykazywały zdolność do hydrolizy oleju słonecznikowego. Najwyższą aktywnością lipolityczną charakteryzowały się szczepy wyodrębnione z biohumusu i surowego ziarna kawy, najniższą - szczepy pochodzące z kompostu liściowego i z łuskanych orzechów laskowych. Różnice te były statystycznie istotne. W przypadku szczepów o najwyższej aktywności lipolitycznej stwierdzono istotną ujemną korelację pomiędzy wielkościami kolonii tych szczepów, a ich aktywnością lipolityczną.

13

Wplyw azotanow i resweratrolu na procesy trawienne in vitro oleju slonecznikowego i frytury palmowej poddanych procesom termooksydacyjnym

67%

Tokarz A., Pokorska-Lis G., Gawkowska K.

Bromatologia i Chemia Toksykologiczna

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2009

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tom 42

|

nr 3

525-531

14

Influence of the Fe and Cu presence in tea extracts on antioxidant activity

67%

Gramza A., Wojciak R. W., Korczak J., Hes M., Wisniewska J., Krejpcio Z.

Electronic Journal of Polish Agricultural Universities. Series Food Science and Technology

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2005

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tom 08

|

nr 4

15

The physicochemical evaluation of oils used for frying chips in the aspect of biofuel production

67%

Maniak B., Kuna-Broniowska I., Piekarski W., Szmigielski M., Zdybel B., Sagan A.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2012

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tom 12

|

nr 2

16

Effect of dietary vegetable oils on milk yield, composition and CLA isomer profile in milk from dairy cows

67%

Brzoska F.

Journal of Animal and Feed Sciences

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2005

|

tom 14

|

nr 3

445-459

17

Effect of vegetable oils supplementation in pig diets on lipid oxidation and formation of oxidized forms of cholesterol in meat

67%

Pieszka M.

Polish Journal of Food and Nutrition Sciences

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2007

|

tom 57

|

nr 4

509-516

The effects of giving pigs dietary vegetable oils on oxidative stability, cholesterol level and oxysterol formation in their meat were studied. A total of 40 Polish Landrace pigs were randomly allocated to 4 groups with 5 gilts and 5 barrows per group and fattened from 50 to 105 kg body weight. Fat supplements represented the experimental factor: palm oil, linseed oil, rapeseed oil, and sunflower oil given at 3% of ration dry matter. A significantly higher MUFA level was found in the m. longissimus dorsi of pigs receiving dietary palm oil compared to the linseed oil-fed pigs (p<0.05). There was a highly significant narrowing in the n-6/n-3 PUFA ratio between the experimental groups (p<0.01). In addition, the level of DHA acid was significantly higher in gilts than in barrows (p<0.01). The use of dietary vegetable oils caused a significant decrease in the oxidative stability of meat, in particular after 180 days of frozen storage of meat (p<0.01). A highly significant interaction was found for TBARS between the fat supplement used and sex (p=0.003). There were highly significant differences in vitamin E content of meat between the group receiving palm oil and the linseed oil-fed group (p<0.01). The type of oil had no significant effect on the total cholesterol content of meat. It was found that oxidized forms of cholesterol formed during storage. There were highly significant differences in the level of 7-ketocholesterol between the groups receiving palm oil and sunflower oil and the groups fed linseed oil and rapeseed oil (p<0.01). A similar, highly significant correlation was found between the level of total oxysterols and total cholesterol, with additional differences between the groups receiving linseed oil and rapeseed oil (p<0.01). Highly significant interactions, ranging from p=0.002 to p=0.08, were found between the level of oxysterols, and the source of fat and sex.

18

Response of Shami goats and kids to variable levels of soyabean or sunflower oils in diets

67%

Titi H. H., Hasan Y. L., Al-Ismail K., Zakaria H., Tabbaa M. J., Abdullah A. Y., Obeidat B. S.

Journal of Animal and Feed Sciences

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2011

|

tom 20

|

nr 4

19

Wplyw dodatku oleju slonecznikowego lub CLA w dawkach pokarmowych dla tucznikow na umiesnienie i profil kwasow tluszczowych w tkankach.

67%

Migdal W., Barowicz T., Borowiec F., Pieszka M.

Rośliny Oleiste - Oilseed Crops

|

2002

|

tom 23

|

nr 1

187-200

20

Effect of sunflower oil and conjugated linoleic acids [CLA] on enzymatic activity and size of muscle fibres of M.semimembranosus in fattening pigs

67%

Migdal W., Wojtysiak D., Barowicz T., Pieszka M., Pasciak P.

Annals of Animal Science. Supplement

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2002

|

nr 2

Ograniczanie wyników

Monitorowanie autooksydacji oleju rzepakowego i slonecznikowego

Thermokinetic analysis of vegetable oil oxidation as an autocatalytic reaction

The international trade in sunflower seed oil of Poland and Ukraine

Predicting sunflower oil content in mixed fat spreads based on electrical properties

Physicochemiacal changes of post-frying sunflower oil

Characterization and biological treatability of edible oil wastewaters

Influence of the minor components of sunflower oil on emulsion stability

Determination of tocopherols content in sunflower oil during oxidation using fluorescence technique

Effect of selected lipid substrates on the process of biosynthesis of surface-active compounds by the Candida bombicola yeasts

Changes in physicochemical parameters and fatty acid composition of vegetable oils during conventional and microwave heating

Utilization of used oils and fats for FAME biofuels production

Zdolnosc szczepow termofilnego grzyba Thermomyces lanuginosus [syn.Humicola lanuginosa] do hydrolizy oleju slonecznikowego

Wplyw azotanow i resweratrolu na procesy trawienne in vitro oleju slonecznikowego i frytury palmowej poddanych procesom termooksydacyjnym

Influence of the Fe and Cu presence in tea extracts on antioxidant activity