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The paper focused on the evaluation of a fatty acid profile and mineral component contents in milk obtained from cows of 5 breeds maintained in Poland. The studies covered 147 milk samples collected from cows of Polish Holstein-Friesian black-white (42) and red-white (26) varieties, Simental (31), Whitebacks (15) and Polish Red (33). Milk was sampled at the spring-summer season when dietary units...
The chemical composition and fatty acid profile of milk from French Alpine dairy goats, obtained during the period of summer feeding and winter feeding, were studied. Milk samples were collected at one-month intervals, to determine dry matter, solids non-fat, protein, fat, fatty acid profile, lactose, urea and somatic cell count. The fatty acid composition of milk fat was determined for particular...
The aim of the present study was to determine the effects of cold storage (temp. 4 and 8°C) on some physicochemical properties and technological suitability of raw milk subjected to vertical vibration at various frequencies (10, 30 and 60 Hz). An analysis of the results showed that vibration increased milk acidity and negatively affected milk components. The process caused, among others, an increase...
The aim of the present study was to compare the sensory quality of cheeses with different fat content. The samples studied were Polish commercial semi-hard type cheese and its reduced fat version. The sensory quality of cheeses was evaluated by quantitative descriptive analysis (QDA) and as hedonic ratings on day 10, 50 and 80 of their storage under traditional conditions (refrigerator 4°C). The chemical...
The hygienic quality and physicochemical properties of raw milk from Holstein-Friesian and Jersey cows were determined in the study. It was found that the total bacterial count and the somatic cell count in milk samples were within the threshold limit values specified by relevant legal regulations. Milk from Jersey cows contained much higher levels of dry matter, which resulted primarily from higher...
Meat samples, numbering 72 in total, differentiated in respect of quality and collected from longissimus lumborum muscle of 72 carcasses of porkers (36 gilts and 36 hogs) approximating in their exterior Polish Large White and Polish Landrace crossbreeds originated from a large-scale farm at Kolbacz and slaughtered on an industrial processing line, were examined. Approximately 45 min after slaughter,...
The chemical composition of Garcinia kola seed and hull was determined using standard methods. Results show that crude protein, lipid extract, ash, and crude fibre ratios are: 39.52 and 99.92 g/kg, 43.25 and 42.91 g/kg, 11.42 and 18.62 g/kg, 114.02 and 153.44 g/kg respectively. Carbon : nitrogen ratios for the seed and hull are 57.88 and 29.01, respectively. Garcinia kola hull had significantly higher...
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