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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.
The paper contains the general characteristics of key features of development of single environmental market on national and supranational level. Different aspects of the problem, including main theoretical approaches to the definition of environmental market and ecoindustry, main gaps and problems of integration of this economical branch in single market in general, infrastructure peculiarities and some national specifics were presented. The analysis showed that single environmental market is holistic and complex in structure system, which development is part of European Sustainable Strategy.
The aim of the paper is to analyse the selected factors determining competitiveness of the fruit and vegetables processing sector. The results of inquiry research conducted in 32 enterprises of the sector located in Wielkopolska Voivodship were presented in the paper. The conducted research proves that, according to the management, the companies have large competitive and developmental potential, particularly in the area of the production resources (mainly knowledge and employees’ experience, technological innovation and value of the fixed capital). The return on assets and profit rate are also highly evaluated. The inquired managers indicated advantage in the area of functions and product quality as the main own sources of competitive advantage and product prices, incomes and preferences of purchases as the most important demand factors.
This paper analyses the competitive advantages and strategies of fruit and vegetable producers. The convergence of domestic and international markets and equalization of competitive conditions reduce the competitive potential of Polish fruit and vegetable producers and force them to make qualitative and innovative improvements. Quantitative and qualitative research was undertaken to prove this thesis statement. Research was carried out as an attempt to identify the variables that determine companies’ ability to achieve competitive advantage. It aimed at recognizing pursued competitive strategies that had been adjusted to new circumstances. The results of qualitative research are presented in the paper. Interdependence of entrepreneurs’ opinions for both domestic and foreign markets was examined by means of ordinal correlation measures. The authoress applied triangulation of methods, i.e. a combination of a quantitative analysis of official statistics and her own qualitative studies.
Celem badań było oznaczenie zawartości witamin z grupy B: witaminy B₁, B₂, B₆ i PP we wszystkich dostępnych w 2013 roku na polskim rynku owsianych produktach bezglutenowych. Materiał doświadczalny stanowiło 7 owsianych produktów bezglutenowych, takich jak mąki i mieszanki do wypieku chleba i ciastek oraz płatki. Produkty poddano hydrolizie enzymatycznej z użyciem taka-diastazy oraz hydrolizie kwasowej z zastosowaniem kwasu solnego. Zawartość witamin z grupy B oznaczono metodami wysokosprawnej chromatografii cieczowej. Średnia zawartość witamin B₁, B₂, B₆ (jako sumy pirydoksalu, pirydoksaminy, pirydoksyny) oraz PP we wszystkich produktach wynosiła odpowiednio 0,184, 0,050, 0,159, 0,544 mg·100 g⁻¹ produktu. Największą zawartość witaminy B₁ stwierdzono w płatkach owsianych, a pozostałych witamin w musli owsianym z owocami. Owsiane produkty bezglutenowe charakteryzowały się zróżnicowaną zawartością witamin B₁, B₂, B₆ i PP. Najbogatszym źródłem analizowanych witamin były płatki owsiane oraz musli owsiane z owocami.
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