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Cel. Celem badań było określenie, na modelu zwierzęcym, wpływu zmiany składu diety i wybranych składników dodatkowych na gospodarkę wodną ustroju. Materiał i metody. Badania przeprowadzono na 48 samcach i 48 samicach (osobno dla każdej płci) szczura szczepu Wistar, podzielonych na cztery grupy. Do picia zwierzęta grupy I i III otrzymywały wodę. Zwierzętom z grupy II i IV podawano 5 ml roztworu wybranych...
Background. Efforts are being made to apply physicochemical parameters analysis in the identification of varietal honeys. With many variables describing a given population, it is feasible to differentiate between basing on principal component analysis (PCA). The aim of this study was to investigate selected physicochemical quality characteristics of nectar honey, with particular emphasis paid to carbohydrate...
Wstęp. Ze względu na skład chemiczny, Spirulina jest stosowana powszechnie jako suplement diety, który wywiera korzystne działanie na organizm człowieka. Ponadto Spirulina ma zdolność hamowania wzrostu niektórych mikroorganizmów, zarówno patogenów będących zagrożeniem dla zdrowia, jak i powodujących psucie się produktów wytwarzanych we wszystkich gałęziach przemysłu spożywczego. Głównym celem prezentowanej...
Introduction. Gluten-free products usually contain low amounts of protein and minerals. However, the information about their nutritional quality is limited. The objective of this study was to determine the content and release of minerals from selected gluten-free products. Material and methods. The content and release of Ca, Mg, Fe, Zn and Cu from selected gluten-free products was determined. The...
Background. Organism’s lipid peroxidation is one of the most often examined and known physiological process evoked by free radicals. It concerns oxidation reaction of unsaturated fatty acid and/or other lipids leading to lipid oxidation products (LOP), which as a result of fiirther changes generate among others the malondialdehyde molecules. The aim of the work was an estimation if raw or cooked kale...
Background. A demand on raw fermented meat products depends on their availability, price and the culture. In Poland, raw meat products have a several hundred years, although limited to the Podlasie region, tradition of manufacturing. Therefore, in spite of widening of Italian, Spanish, Portuguese, German and recently even the Czech Republic products assortment on the Polish market, the consumption...
In recent years in Poland we may observe a considerable development of organie vegetable production. Increased interest in organie products results from an opinion of the consumers on their high quality and health safety. However, results of research comparing nutritive value and contents of biologically active compounds in vegetables from organie and conventional farms are ambiguous. Most studies...
The objective of this study was to analyse allergenic proteins by identifying their molecular biomarkers for detection in food using bioinformatics tools. The protein and epitope sequences were from BIOPEP database, proteolysis was simulated using BIOPEP program and UniProt database screening via BLAST and FASTA programs. The biomarkers of food proteins were proposed: for example for whey proteins...
Rosmarinus officinalis (Rosemary) is a common household plant which belongs to the family Lamiaceae and is grown in many parts of the world. It is a woody, perennial herb with fragrant, evergreen, needle-like leaves and white, pink, purple or blue flowers. The two most commonly grown hardy Rosemaries are Rosmarinus officinalis ‘Arp’ and R. officinalis ‘Madelene Hill’ (syn. ‘Hill Hardy’). The other...
Background. The effect of preparation methods (raw, half-boiled and hard-boiled) on protein and amino acid contents, as well as the protein quality (amino acid score) of regular, kampung and nutrient enriched Malaysian eggs was investigated. Methods. The protein content was determined using a semi-micro Kjeldahl method whereas the amino acid composition was determined using HPLC. Results. The protein...
Background. Microbial milk-clotting enzymes are valued as calf rennet substitutes in the cheese industry. The worldwide increase of cheese production coupled with a reduced supply of calf rennet has prompted a search for calf rennet substitutes, including microbial and plant rennets. However, most plant rennets have proved unsuitable because they impart a bitter taste to the cheese. Microbial rennet...
Background. The effect of sugar Solutions, commonly used for preparing and improving quality of ice creams, that have a similar effect on the sweet Czech Christmas bread was checked. Material and methods. Commercial wheat flour T 512 ingredients were used for preparing dough and final products. Sugar Solutions A, B were used as sweeteners for sucrose. Texture properties of dough and the sweet Czech...
Introduction. Intake of wild growing edible mushroom in selected regions of Europe (especially East and Central Europe) is significant. Additionally, mushrooms are able to accumulation many times higher amounts of nutritional and toxic elements than plants, therefore knowledge on their concentration levels and changes in their content is important for human health. Material and methods. Eleven biologically...
Introduction. Fat, fructose, and salt consumption has increased in industrialized countries, but there are few studies that have investigated the effect of this eating pattern on metabolic and physiological States. The purpose of this study was thus to assess lipid and carbohydrate metabolism and to estimate iron, zinc, copper, calcium, and magnesium status in rats fed a diet high in fat, fructose,...
Introduction. Down’s Syndrome (DS) belongs to the most frequent aberrations of autosomal chromosomes of all known chromosome disorders. The most frequent diseases accompanying Down’s Syndrome include diabetes and obesity. One of the causes of fatty tissue, including visceral tissue accumulation in body is an ill balanced diet in terms of, among others, the quantity and structure of carbohydrates,...
Background. Analysis of the properties of various chitosan grades has resulted in a working hypothesis that chitosan can be used as part of protective film-forming coatings for meat and meat products. The aim of this study was the research of composition, properties and antibacterial activity of chitosan-based coatings used for cold storage of meat and meat products. Material and methods. Protective...
Background. Understanding of oil deterioration during heating/frying process is important as oils are normally kept hot at commercial food outlets during intermittent frying cycles. An increased level of consumer awareness toward fat composition and its impact on human health could have an effect on selection of fats in the food industry. The rate of quality deterioration during heating depends on...
Background. Recent epidemiological evidence on the growing role of food antioxidants in oxidative stress related diseases has led to a wide number of antioxidant potential evaluation assays. Main antioxidants in food are e.g. polyphenols of plant origin. Antioxidants consumption would be very promising futurę trend for human health and important factor in body defense system activity against reactive...
Gelatin is an important functional biopolymer widely used in foods to improve elasticity, consistency, and stability. It can be obtained not onły from the skin and bones of land animals, but also from fish and insects. In recent years gelatins from fish and edible insects provide an altemative source that is acceptable for halal (Muslim) and kosher (Jewish) products, gelatin extraction has been reported...
Background. There are not enough published investigations conceming knowledge on food ąuality and preference of highly educated young consumers from Bośnia and Herzegovina. The present research was aimed at survey of young consumers’ knowledge on food quality and food additives and its impact on food preference. Material and methods. Respondents’ answers were analysed grouped regarding: (1) education,...
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