Content of cholesterol and fatty acid profile in sweet cream and cream made from milk produced by cows of three different breeds
Journal Title: Żywność. Nauka. Technologia. Jakość - Year 2016, Vol 23, Issue 2
Abstract
Cows of three cow breeds: Polish Holstein-Friesian black-white variety; Polish Holstein-Friesian, red-white variety and Polish Red were milked and the milk was centrifuged to separate the fat in the form of sweet cream. Next, the sweet cream was inoculated with butter milk starter and, after the incubation, a cream was produced. In the products produced, the following was determined: the content of fat using a buthyrometric method; the content of cholesterol using an enzymatic method with cholesterol oxydase; the fatty acid profile using a gas chromatography method; and the diameter of fatty globules using a microscopic method. It was found that the milk from cows of three cow breeds differed statistically significantly (p ≤ 0.01) in the content of fatty acids: C15:0, C16:0, C18:0, C18:1n7, CLA, C20:0, C4:0, C14:0, C14:1, C17:0, and C18:3n6. The cow breed had no effect on the content of the following acids: C6:0, C8:0, C10:0, C12:0, C18:2n6, C18:3n3, and C20:1. The fat in milk produced by the cows of the Polish Holstein-Friesian breed, black-white variety, was characterized by the highest contents of the following fatty acids: C 16:0, C 18:1n9, C 14:0, C 18:0, and C 12:0. In the fat in milk produced by the cows of the Polish Holstein-Friesian breed, red-white variety, the following acids prevailed: C14:1, C15:0, C18:0, C18:3n6, CLA, C20:0. In the fat in milk produced by the cows of the Polish Red breed, the amounts of the following acids were the highest: C4:0, C 18:1n9, and C 18:1n7. In the fatty acid profiles of milk produced by the cows of the three breeds, the following acids predominated: C16:0, C 18:1n9, and C14:0. No differences were found in the profiles of fatty acids in the fats of milk, sweet cream, and cream; this fact confirms their stability during the centrifugation and pasteurisation of milk as well as during the acidification with starter cultures. It was proved that the milk fat contained lightly more cholesterol compared to sweet cream fat and cream fat. The acidification of sweet cream caused the content of cholesterol therein to decrease almost twice, and this reduction resulted from the activity of starter culture bacteria.
Authors and Affiliations
Genowefa Bonczar, Henryk Pustkowiak, Jacek Domagała, Dorota Najgebauer-Lejko, Marek Sady, Maria Walczycka, Monika Wszołek
Keywords
Related Articles
- EP ID EP96295
- DOI 10.15193/zntj/2016/105/117
- Views 55
- Downloads 0
WPŁYW DODATKU MĄKI ŁUBINOWEJ NA JAKOŚĆ CHLEBA PSZENŻYTNIEGO
W badaniach określono wpływ dodatku mąki łubinowej na jakość chleba pszenżytniego. Zastosowano pięć różnych wielkości dodatku mąki łubinowej [% (m/m)]: 3, 5, 7, 9 i 12 w stosunku do masy mąki pszenżytniej, a wypieczone...
Zawartość wybranych składników mineralnych i anionów nieorganicznych w sokach drzewnych z terenu Podkarpacia
Zawartość kwasu elagowego i spolimeryzowanych proantocyjanidyn w pseudoowocach wybranych gatunków róż
Kwas elagowy (KE) występuje w niektórych roślinach w postaci wolnej, glikozydowej i estrowej. W formie estrowej znajduje się w taninach hydrolizujących, do których należą elagotaniny (ET) i galotaniny. Oprócz tanin hyd...
Antifungal activity of lactic acid bacteria of Lactobacillus genus
One of the methods of protecting fermented foods against undesirable microorganisms living therein is using the lactic acid bacteria as natural bio-preservatives. The occurrence of lactic acid bacteria (LAB) in food is p...
OCENA WAŻNOŚCI CECH SERA TWARDEGO I MIEJSCA JEGO ZAKUPU W OPINIACH KONSUMENTÓW Z HOLANDII, NIEMIEC I POLSKI
W pracy przedstawiono wyniki badań konsumenckich, przeprowadzone wśród holenderskich, niemieckich i polskich nabywców sera twardego, dotyczące oceny cech tego produktu i miejsca jego zakupu. Wszyscy respondenci wskazal...