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Mechanical properties of flax fibres

100%
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Origin of synthetic particles in honeys

88%
A total of 47 honeys and 22 flowering plants was analysed for their load of synthetic fibres and fragments. In all samples investigated foreign particles were found. These include also black carbon particles which were not enumerated. Fibres and fragments ranged from 10 to 336 kg-1 and 2 to 82 kg-1 honey, respectively. The data of the flowering plants analysed indicate that a major proportion of the particle load may originate from external sources, i.e. these particles are brought into the beehive by the worker bees during nectar collection.
Vegetables are a very important element of the human diet due to the fact that they are carriers of many bioactive substances. Tomatoes are among them as a valuable source of dietary fibre, antioxidants (carotenoids, flavonols, vitamin C, tocopherol). Unused tomato waste resulting from the production of juice and paste can be used for making functional foods. The aim of the research was to characterise tomato fibre as a carrier of bioactive substances and assess its usefulness as a functional component of foodstuffs. Our research results showed that tomato pomace is a rich source of dietary fibre and in particular of its active fractions. However, the expected amounts of carotenoids including lycopene were not found out in them. Still it reveals an ability to bind metal cations. The tomato preparation can be regarded as a potential functional food additive.
The aim was to assess the relationships between willingness to eat cereal products fortified with fibre, attitudes towards food technologies and some food choice motives. The questionnaire survey was carried out in 2013 within 1000 Polish consumers. Selection criteria of the sample took into account representativeness of the population due to province, then the choice had quota character by gender, education and size of residence place. The questionnaire consisted of questions on Food Technology Neophobia Scale (FTNS), motives of food choice (health, quality, and hedonic value) and intention to eat bread, pasta and biscuits fortified with fibre. The frequency analysis, cross tables and cluster analysis were used to analyse data. Relationships between parameters were assessed by calculating Pearson correlation coefficients using SPPS, version 21.0. The neophilic attitudes towards new food technologies (12.6% of participants) were represented by more women and people in the 26-35 age group. More neophobic (16.1%) were male, worse educated and older respondents. Only 18.4% of participants were in cluster "wanting to eat". More of them were people with neophilic attitudes. Among "not wanting to eat" (24.5%) there were more men, worse educated respondents, and representing neophobic attitudes. There were statistically significant correlations between perceived motives of food choice and declared intentions to eat cereal products fortified with fibre, except perceived pleasure from eating pasta. The willingness to eat cereal products fortified with fibre was significantly determined by attitudes towards new food technologies, health, quality and pleasure as motives of food choice, but also by socio-demographic profile.
Alpacas are known worldly for their very fine, luxurious fiber which is three times more hardy and six times more thermal than sheep fiber. Aside from fiber, alpacas are also bred for meat and used in the tourism and recreational industry and animal assisted therapy. Possibility of comprehensive use of these animals caused alpacas' popularity to grow immensely over the past few decades all over the world, also in Poland, where they adapted very well and have been bred since 2004. The objective of the analysis was to study the stocks of the Polish alpaca population, sex structure, also interesting was the inquiry of the distribution of various fleece colour. In Poland the majority of alpaca breedings are concentrated in voivodeships: Silesia, Podlasie and Wielkopolska. According to questionaire surveys carried out in 2012 on 9 farms, alpaca population in Poland numbers 651 and consists of: Suri (12%) and Huacaya (88%) which differ in coat type. In the surveyed population 86% consituted females and 14% males, in Suri population, 65% consituted females and 35% males. Alpaca fleece occurs in 22 natural colours, all shades of beige, brown and grey. Distribution of coat colour in the surveyed population, according to the method-oligically amended criterium was established as follows: white 58%, fair brown 12%, dark brown 9%, cream-coloured 6% and grey 6%, black 5%, multicoloured 4%. In the surveyed population of Huacaya alpacas the majority consituted white-couloured animals (63%), fair brown-coloured - 11%, dark brown-coloured - 8%, grey and black - 5% each, multicoloured - 3%. The Suri population was dominated by cream-coloured animals, whereas fair brown-coloured and dark brown-coloured cosituted 20% each, white-coloured - 12%, grey, black and mulitcoloured - 9% each. Results obtained can be considered satisfying compared with results obtained in Peru, where the biggest alpaca population is.
The objective of this study was to evaluate the behaviour of fibre in the digestive tract on the basis of the passage kinetics of forage and concentrate particles in cows fed different omega-6 fatty-acid sources. The scientific hypothesis of this study was that omega-6 fatty acids do not interfere with the digestion of fibre in the diets of dairy cows. Five primiparous lactating Holstein cows were used in the experiment. The experimental diets were: control (C), ground soyabean (GS), cottonseed (CS), soyabean oil (SO), calcium salts of fatty acids (CSFA). The global mean estimates for the parameters of passage rate (γ) were 0.038 and 0.055 h–1 for forage and concentrate, respectively. The only significant effect with respect to the passage rate was a high negative correlation between the concentrate passage rate and dry matter intake. There was less undegradable neutral detergent fibre (NDF) in treatments without added lipid. Dietary supplementation with lipid sources does not alter the kinetic parameters of roughage and concentrate particle passage or in vitro NDF degradation. Sources of omega-6 fatty acids do not alter the rumen degradation and transit of fibre.
Flax is a valuable source of fibers, linseed and oil. The compounds of the latter two products have already been widely examined and have been proven to possess many health-beneficial properties. In the course of analysis of fibers extract from previously generated transgenic plants overproducing phenylpropanoids a new terpenoid compound was discovered. The UV spectra and the retention time in UPLC analysis of this new compound reveal similarity to a cannabinoid-like compound, probably cannabidiol (CBD). This was confirmed by finding two ions at m/z 174.1 and 231.2 in mass spectra analysis. Further confirmation of the nature of the compound was based on a biological activity assay. It was found that the compound affects the expression of genes involved in inflammatory processes in mouse and human fibroblasts and likely the CBD from Cannabis sativa activates the specific peripheral cannabinoid receptor 2 (CB2) gene expression. Besides fibers, the compound was also found in all other flax tissues. It should be pointed out that the industrial process of fabric production does not affect CBD activity. The presented data suggest for the first time that flax products can be a source of biologically active cannabinoid-like compounds that are able to influence the cell immunological response. These findings might open up many new applications for medical flax products, especially for the fabric as a material for wound dressing with anti-inflammatory properties.
The estimation of environmental degradability of different ramie fibre reinforced biocomposites in Baltic Sea water and in compost with activated sludge under natural conditions is the subject of this paper. The characteristic parameters of environments were monitored during incubation time and their influence on the rate of degradation of biocomposites was discussed. The degradation processes of two kinds of biocomposites, ramie fibre/Ecoflex® and ramie fibre/cellulose nanofibre reinforced corn starch resin, were studied by macro- and microscopic observations of polymer surfaces, changes of weight, and tensile strength during incubation under natural conditions. The macro and microscopic observations and weight changes confirmed the decrease of the tensile strength both of the composites after incubation in compost and in sea water. It was demonstrated that the biocomposites with natural fibre of ramie were degraded in compost faster than in sea water, due to different microbial communities. The ramie/Ecoflex® biocomposite was degraded more distinctly than ramie/cellulose nanofibre reinforced corn starch resin biocomposite in both natural environments.
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Use of carob flour in the production of tarhana

63%
In this study, the effect of carob flour incorporation on some physical, chemical, technological, sensory and functional properties of tarhana was investigated. Carob flour was replaced with wheat flour at 0, 5, 10, 15 and 20% levels in tarhana dough. Dietary fibre, raw fibre, ash, Ca, K, Cu, total phenolic compound contents and total antioxidant capacity of dry tarhana samples as well as the acidity values during fermentation of the wet tarhana samples increased with carob flour substitution. Samples with supplementation had lower lightness and higher Hunter a and b values. Carob flour addition decreased the viscosity and yield stress of tarhana soup samples. The results showed that carob flour addition affected all the parameters measured to various extents including sensory properties. Overall acceptability scores were most highly correlated with taste. According to the sensory analysis results, carob flour can be used successfully up to the amount of 15%.
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