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Introduction. The Total Antioxidant Capacity (TAC) of human milk reflects the concentration and the activity of many components which prevent oxidative degradation of fats and proteins. This study compares the effectiveness of ABTS and DPPH tests with regard to the recovery, precision and sensitivity (detection and quantification limit) of (TAC) values in human milk. Material and methods. TAC values...
Background. Salted fish products are popular in many countries around the world. Salting is one of the oldest techniques for fish preservation, and is essentially intended to increase the shelf-life of the product depressing water activity by means of dehydration and salt uptake by the fish muscle. However, the current demand for salted fish is driven more by the flavour of the product than for preservation...
Background. Saharan plants are known by their high content of antioxidant products like phenolic compounds due to the extreme climatic conditions. They constitute the basis of treatments used by local population for various diseases. The purposes of this study were to measure the total phenolic compounds and total flavonoid compounds, to determine antioxidant capacity, and to evaluate the antibacterial...
Background. An intensive development of the Fast Liquid Chromatography (FLC) has been recently observed. It makes possible to reduce time analysis and improve resolution as well as sensitivity. The aim of this study was to separate the chosen antioxidants optimization using the FLC method. Material and methods. The three various procedures for antioxidants analysis were compared. Mobile phases containing...
Introduction. Meat and processed meats, depending on the animal species and anatomical element from which they were obtained, exhibit a varied fat content (most typically from 10% to 80% dry matter). Fats are relatively unstable food components. The aim of this study was to determine the effect of an addition of model brines on lipid oxidation rate in the selected beef element stored under aerobic...
Background. Potato pulp constitutes a complicated system of four types of polysaccharides: cellulose, hemicellulose, pectin and starch. Its composition makes it a potential and attractive raw material for the production of the second generation bioethanol. The aim of this research project was to assess the usefulness of commer- cial enzymatic preparations for the hydrolysis of potato pulp and to evaluate...
Background. Commonly occurring diseases can have the origin in oxidative processes ongoing in the human body. Vegetables of Brassicaceae family are the essential sources of natural antioxidants, especially phenolic compounds, in the human diet. The research was aimed to estimate the content of phenolic compounds in selected vegetables and their quantity changes during hydrothermal processes. Material...
Nano-biosensors could be defined as biosensors, which are combined with nanotechnology by using several techniques. This strategy could be seen as a key to yielding device which exhibits rapid responses combined with very high sensitivities. In recent years as consumer demand traceability and legislators and accountability in the food chain distribution has increased, the need for rapid and verifiable...
It has become increasingly apparent that vesicular drag delivery elicits modest possessions in drag targeting. Transfersomes are a form of elastic or deformable vesicle, which were first introduced in the early 1990s. Elasticity can be achieved by using an edge activator in the lipid bilayer stracture. Molecules greater than 500 Da normally do not cross the skin. This prevents epicutaneous delivery...
Background. The name pasta filata refers to a unique plasticizing and texturing treatments of the fresh curd in hot water that imparts to the finished cheese its characteristic fibrous structure and melting properties. Mozzarella cheese made from standardized homogenized and non-homogenized buffalo milk with 3 and 1,5%fat. The effect of homogenization on rheological, microstructure and sensory evaluation...
Background. In human nutrition legume seeds are usually subjected to soaking and thermal processes, mainly by using traditional cooking method. This method which has been used for decades, does not allow to control and adjust the parameters of this process. Therefore it does not seem to be the optimal method. Undoubtedly, microwave field is an alternative thermal process to conventional technique...
Background. In the course of production of buckwheat groats by-products are produced, such as bran and hull, which apart from high content of dietary fiber, may also constitute valuable sources of antioxidants. The aim of these investigations was to determine the antioxidant activity of extracts from by-products produced during processing of buckwheat for groats. Material and method. Analyses were...
Background. Modelling moisture diffusivity of pomegranate cultivars is considered to be a major aspect of the drying process optimization. Its goal is mainly to apply the optimum drying method and conditions in which the final product meets the required standards. Temperature is the major parameter which affects the moisture diffusivity. This parameter is not equal for different cultivars of pomegranate...
Background. There are no long-term prospective studies assessing the impact of the vegan diet on vitamin B-12 (B-12) status. Many vegans take B-12 supplements irregularly or refuse to adopt them at all, considering them to be “unnatural” products. The use of B-12 fortified food may be an altemative. Therefore, we aimed to estimate the long-term effect of a vegan diet on serum B-12 concentrations in...
The purpose of this review is to present information regarding new effects for certain nutrients other than those traditionally known. Zinc has been found to prevent and reduce the duration of common colds. In developing countries, zinc has been shown to reduce the duration and severity of diarrhea and even decrease relapses. Iron supplementation in iron deficient children, has been shown to improve...
Background. The interest in potato juice as a therapeutic agent goes back to the 19,h century but its application was not supported by any knowledge about biological activity of this raw material. Factors restricting the medical application of potato juice include its inattractive sensory and functional properties. The aim of the presented investigations was preliminary evaluation of the biological...
Background. Flow cytometry constitutes an altemative for traditional methods of microorganisms identification and analysis, including methods reąuiring cultivation step. It enables the detection of pathogens and other microorganisms contaminants without the need to culture microbial cells meaning that the sample (water, waste or food e.g. milk, wine, beer) may be analysed directly. This leads to a...
Background. The most popular form of utilization of African locust bean (ALB) is in its traditional fermentation food condiment (iru/dawadawa), which adds protein to a protein-poor diet and also as Medicine. In view of the nutritive values of ALB, the present study therefore aimed at investigating the effect of germination and fermentation on the nutritional quality of ALB fiour. Material and methods...
Meat and meat products, which form a major part of our diet, are very susceptible to quality changes resulting from oxidative processes. Quality of fermented food products depends on the course of various physicochemical and biochemical processes. Oxidation of meat components in raw ripening products may be the result of enzymatic changes occurring as a result of activity of enzymes originating in...
Background. The artichoke (Cynara scolymus L.) is a perennial plant belonging to Asteraceae family. It is less popular vegetable in Poland but very valuable from nutritive and medicinal points of view plant. Material and methods. The experiments were conducted in 2008 and 2009 on five artichoke varieties: ‘Deutscher Hybrid’, ‘Emerald F,’, Green Globe’, ‘Gros Camus de Bretague’ and ‘Kerlouan’, grew...
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