|
|
Study of behavior of thermal insulation materials on natural base
Kostlánová, Jana ; Balíková, Jitka (referee) ; Zach, Jiří (advisor)
The aim of the thesis is focused on a research of behavior of thermal and acoustic insulating materials on natural base with major importance on fibrous insulating materials. Vital part of the thesis is aimed on monitoring of environmental aspects interrelated with retrieving of raw materials and insulating materials manufacturing. Other types of fibrous insulating materials employed in a civil engineering are presented in the text. The main objective of the thesis is an evaluation of an influence of input fibers quality to the final attributes of insulating materials. The fundamental element of material quality evaluation represents physical and mechanical attributes of examined subjects.
|
|
|
Preparation of rolls with addition of alternative flours
UHLÍŘOVÁ, Lenka
This bachelor thesis is focused on the production of ordinary pastry with the use of alternative flour. Four kinds of crop flour, made from seed pomace of flax (Linum usitatissimum L.), hemp (Cannabis sativa L.), squash (Cucurbita pepo L.) and milk thistle (Silybum marianum L.), were selected. In the literary part of the thesis, common pastry according to legislation, basic and auxiliary raw materials for production and production technology are all de-fined. The crops, from which the addition to wheat flour was processed, are also described. The practical part deals with the production of five types of wheat buns. Four of them are enriched with 5 % of flour made from seed pomace of the four mentioned crops. Production of buns was followed by sensory evaluation according to the descriptors. Weight lost by baking, the quantity of polyphenolic substances and antioxidant activity were also evaluated.
|
|
|
Use of alternative plant flours for bread production
VÍTKOVÁ, Věra
This thesis is about importance of bread in diet, nutritional composition and the result of excessive at the human health. Part of the text deals with materials which are important section of research focused at enrichment of bread without negative effect on technical properties of dough. Is an effort to keep original sensory properties. Practical part deals with hemp, gourd, milk thistle and flax flours. This material was used in 5 or 10 % for baking 17 breads following the standard recipe. These breads were dried and grinded. Grounded breads were subjected to analysis of polyphenol content, antioxidant activity and nitrogen substance content. All breads containing oilseeds had better nutrition properties. There was not a problem with technological properties during dough processing.
|
|
| |
|
|
Study of behavior of thermal insulation materials on natural base
Kostlánová, Jana ; Balíková, Jitka (referee) ; Zach, Jiří (advisor)
The aim of the thesis is focused on a research of behavior of thermal and acoustic insulating materials on natural base with major importance on fibrous insulating materials. Vital part of the thesis is aimed on monitoring of environmental aspects interrelated with retrieving of raw materials and insulating materials manufacturing. Other types of fibrous insulating materials employed in a civil engineering are presented in the text. The main objective of the thesis is an evaluation of an influence of input fibers quality to the final attributes of insulating materials. The fundamental element of material quality evaluation represents physical and mechanical attributes of examined subjects.
|
|
|
The cultivation of flax (\kur{Linum usitatissimum} L.) and its food and non-food use
JAKŠOVÁ, Marie
In the history of mankind is linseed and flaxseed recognized as one of the oldest crops. Its beneficial effects and wide range of usage is already known by the ancient Egyptians. In 650 B.C. Hippocrates used flaxseed in treatments. Flaxseed is a blue flowering crop grown primarily in cooler regions of the world. Usefulness lies in the flax stem and seed production. The aim of my bachelor thesis was to develop a literary research on the technology of the cultivation of flax and its food and non-food uses. In their bachelor's thesis I present the history of flax, the botanical characteristics and morphology of the plants, the demands on the environment, varieties, pest control and weed control, protection against diseases, agrotechnice and fertilization. In addition, I here how to harvest and post-harvest techniques, water, the quality of the product and also the food and non-food uses.
|
|
|
The comparison of energetical and insulative properties of selected plant materials
BOUBERLE, Josef
The work deals with the evaluation of suitable using of plant materials in energetics and in insulating materials in building in particular from the view of a sustainable development. The Nature produced a large quantity of raw materials, which may be variously used with a small energetical contribution. They can be used for production of alternative energy forces as well as in building. This work also compares contemporary and available range of products in the Czech market, particularly in insulating materials and the work also deals with a possibility and suitability of their using in building.
|
|
|
Multiinstrumental analysis of the effect of cadmium ions on selected flax cultivars
Kryštofová, O. ; Baloun, J. ; Húska, D. ; Diopan, V. ; Shestivska, V. ; Zítka, O. ; Adam, V. ; Macek, Tomáš ; Macková, M. ; Havel, L. ; Kizek, R.
Multiinstrumental analysis of the effect of cadmium ions on selected flax cultivars was performed, revealing marked differences in synthesis of protective compounds by chromatographic, spectrometric and electrochemical techniques.
|
|
|
Fuel Characteristics of Flax (Linum usitatissimum) Applied for Phytoremediation of Industrially Contaminated Sites
Šyc, Michal ; Pohořelý, Michael ; Toufarová, H. ; Žáčková, P. ; Punčochář, Miroslav
Expansion of energetic crops growing leads to the need of cultivation of soil that was not used so far. Flax as an energetic crop is possible to grow on insdustrially contaminated sites. Furthermore, heavy metals bioaccumulation ability of flax caused remediation of contaminated soils by moving them to phytomass. This phytoremediation method is called phytoextraction and it is one of the phytoremediation technologies. Fuel characteristics and usability of flax for selected heavy metals (Cu, Pb, Zn, Cd, Hg, Cr, Ni, As) phytoextraction are presented in short-paper.
|
|
| |
guest ::
