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Microbiological and sensory quality of milk on the domestic market

100%

Piotrowska A., Swiderski F., Kostyra E., Zebrowska-Krasuska M., Sadowska A.

Polish Journal of Food and Nutrition Sciences

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2015

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tom 65

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nr 4

The evaluation of the microbiological and sensory quality of 30 assortments of market milk was the objective of the presented research. The study also compared the sensory profile of selected samples of milk differing in preservation method. Microbiological tests included determination of the presence and number of Enterobacteriaceae and the total number of microorganisms. Sensory characteristics of all the milk samples was performed by scaling method (5-points scale). Selected samples of milk were additionally assessed by means of profile method. Microbiological tests showed satisfactory microbiological purity of milk, which indicates the effectiveness of the heat treatment and the lack of secondary contamination. Regardless of the preservation method, all the evaluated milk samples were characterised by a high sensory quality (4.25-5 points). There were no changes in smell and taste, resulting from the development of undesirable microflora. The tested samples of milk differing in the preservation method (sterilisation, pasteurisation at high temperature and subjected to microfiltration and low pasteurisation) varied in the sensory profile. Milk pasteurised at high temperature was characterised by the most harmonised overall quality.

2

Determination of strontium in milk by flame atomic absorption spectometry

100%

Tautkus S., Uzdaviniene D., Pakutinskiene I., Kazlauskas R., Zalieckiene E.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 5

771-775

The method for the determination of Sr microamounts in milk by flame atomic absorption spectrometry (FAAS) is suggested. The main characteristics for the determination of this metal have been optimized and investigated: optimum air and gas pressure; the influence of hydrochloric acid and an effect of time on the absorbance of strontium. The selectivity of the determination of strontium was also investigated. The limiting interfering Sr/M ratios (the determination error ±10%) have been estimated. The suggested technique is simple, fast, accurate and selective.

3

Evaluation of four procedures for preparing mare milk samples for proteomic analysis

100%

Cichy A., Dratwa-Chalupnik A., Medenska W., Ozgo M.

Animal Science and Genetics

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2022

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tom 18

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nr 3

4

Technological requirements of milk for dairy industry with particular reference to the potential adaptation for human nutrition and health

100%

Maubois J. L.

Animal Science Papers and Reports

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2004

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tom 22

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nr 3

5

Perspectives for goat milk in human nutrition

100%

Finocchiaro R., Van Kaam J. T.

Animal Science Papers and Reports

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2004

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tom 22

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nr 3

6

Tickborne encephalitis epidemic caused by goat's milk

100%

Borosznoi E., Muller E.

Annals of Agricultural and Environmental Medicine

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1994

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tom 01

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nr 2

7

Analysis of the size of fat globules in milk and cream dispersed in different reagents solutions

88%

Nowak K., Kielczewska K., Murach D., Dabrowska A.

Polish Journal of Natural Sciences

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2017

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tom 32

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nr 4

This study compared the dimensions of the dispersion of fat globules in dairy products based on microscopic and instrumental methods using laser diffraction. The research involved an analysis of 20% and 10% fat cream and 3.5% fat milk, both non-homogenized and homogenized at 20 MPa and 100 MPa. Chemical compounds affecting the dissociation or disaggregation of casein micelles and fatty globules agglomerates were added to samples intended for instrumental measurements. It was found that those compounds did not have any significant effect on changes of determinants characterizing the dispersion of fat globules in cream, while in milk they determined the size of particles with a decreasing intensity of differences between the parameters under analysis in the following order: non-homogenized milk > milk homogenized at 20 MPa > milk homogenized at 100 MPa.

8

Evaluation of the mineral composition of infant formulas

88%

Winiarska-Mieczan A., Tupaj M.

Journal of Elementology

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2009

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tom 14

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nr 3

583-591

The composition of modified milk for babies is based on the model of breast milk. Milk replacement formulas are produced on the basis of cow’s milk so it is necessary to modify all the nutrients in order to make them resemble most closely the model. Determination of babies’ nutritional requirements is based on the knowledge of women’s breast milk, which is regarded the best possible food in the first period of infant life. The concentration of mineral elements in breast milk is low and the total content of ash amounts to 0.2 g⋅dl-1. The content of sodium, potassium and chlorine is three times as low as in cow’s milk. The source of individual elements for babies is their food, though some elements are provided in drinking water and supplements. Typically, mineral elements are absorbed more effectively in the periods of intensive growth. It should be remembered that the mineral elements found in breast milk are characterised by much higher bioavailability than those present in modified milk. The major requirement for modified milk to be registered and authorised for sale in Poland is the conformity of its mineral composition with international recommendations. The objective of the present work was to establish the content of mineral components in powdered milk used in the nutrition of infants in the first months of their lives. All the examined preparations were labelled as “a special nutrition product”. They were purchased in different groceries in Lublin in October 2007, all before their use-by date. The shares of Mg, Zn, Cu, Ca, Mn, Na, Fe and K were marked in the samples. It was demonstrated that all the examined milk samples contained much more Ca and Cu in comparison to recommended norms, whereas they were deficient in Mg and Mn.

9

Influence of vegetable biostimulators on physical and chemical parameters of cows' milk

88%

Silchenko K., Ryzhkova T.

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego

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2021

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tom 17

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nr 3

10

Determining the relationship between milk urea level and selected fertility traits in Holstein-Friesian cows

88%

Siatka K., Sawa A., Bogucki M., Krezel-Czopek S.

Acta Scientiarum Polonorum. Zootechnica

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2018

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tom 17

|

nr 1

11

Efficiency of vitamin E in the lactating cows diet for obtaining high-quality vitaminized milk

88%

Zozula J., Iwonow I.

Pasze Przemysłowe

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2016

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tom 25

|

nr 1

12

Attempt to identify the causal relationships between the prices of milk in selected EU countries

88%

Tluczak A.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

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2011

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tom 13

|

nr 6

The causality Granger test was used to assess the causal links between the prices of milk in selected European Union countries. The Granger test is based on the vector autoregression models - VAR. The conducted research allowed to identify causal relationships between the prices of milk in the following countries: Poland, Germany, France, the Czech Republic, Slovakia.

13

Chemical composition of sows' milk

88%

Buczynski J. T., Fajfer E., Szulc K.

Annals of Animal Science. Supplement

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2001

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nr 1

14

Fluorine in milk

88%

Pasternak K., Majdanik S., Papierkowski A.

Polish Journal of Environmental Studies

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1998

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tom 07

|

nr 4

The experiment was conducted in order to determine the concentration of fluorine in cow's milk and human breast milk. Milk samples were tested for fluoride concentration. After fractioning, free fluorine and protein-bound fluorine was tested by using ion-selective electrode. It was determined that the concentration of fluorine in tested human breast milk was higher than in cow's milk. The fluorine appeared mainly in free form and only a small fraction was bound to proteins. Complete concentration of fluorine was higher in human breast milk than in cow's milk.

15

Effect of homogenization on milk conductance properties

88%

Banach J. K., Zywica R., Kielczewska K.

Polish Journal of Food and Nutrition Sciences

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2008

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tom 58

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nr 1

The manuscript presents results of investigations aimed at determining changes in conductance properties of raw milk homogenized at pressures of 5, 10, 15 and 20 MPa. Results obtained demonstrated that values of impedance were the highest and those of admittance – the lowest at the applied pressure of ca. 15 MPa, at which additionally the degree of fat globules disintegration appeared to approximate the maximum one (obtained at a pressure of 20 MPa). It was also concluded that the results achieved in the study constitute a basis for further research into the application of electric properties of milk in determination of the degree of fat globules dispersion in the homogenization process of raw milk.

16

Options for CAP reform in the next trade round with special reference to milk

88%

Sheehy S. J.

Annals of Warsaw Agricultural University. Agricultural Economics and Rural Sociology

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1998

|

tom 33

17

The effector the milker on the yield and somatic cell count in the milk of Yersey cows

88%

Antkowiak I., Pytlewski J., Stanislawski D.

Roczniki Akademii Rolniczej w Poznaniu. Zootechnika

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2002

|

tom 54

18

Levels of residual nitrates and nitrites in milk in 1996

88%

Baranova M., Burdova O., Mal'a P., Zezula I.

Bulletin of the Veterinary Institute in Puławy

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1998

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tom 42

|

nr 2

Levels of nitrates and nitrites were observed in pooled samples of milk from selected suppliers of the Košice dairy, and in dairy treated milk during certain months of the year. The average value of nitrates in examined (432) pooled samples of milk ranged from 1.84 to 4.58 mg of NaNO₃.1⁻¹, and in dairy-treated milk (72 samples), from 2.33 to 6.23 mg of NaNO₃.1⁻¹. In the both cases maximal values of nitrates were observed in April, and minimal values in January. With the exception of one pooled sample, all the examined milk samples complied with the Slovak Codex Alimentarius, where the highest values of nitrates and nitrites in some of the final products are fixed. The average value of nitrites in the examined samples of milk taken during the investigated period, amounted to 0.07 mg of NaNO₂.1⁻¹.

19

Effect of cold storage of raw milk on milk protein system

88%

Sienkiewicz T., Gebhardt U., Krenkel K.

Polish Journal of Food and Nutrition Sciences

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1998

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tom 07

|

nr 2 Suppl.

20

Obosnovanie skhemy vysokochastotnogo diehl'kometrichnogo izmeritelja parametrov kachestva moloka

75%

Yakimec V., Bubnjak T., Drobot I.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2014

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tom 16

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nr 4

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