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Waxes and Lipids Extraction from Miscanthus Giganteus Stems.
Rousková, Milena ; Šolcová, Olga ; Kaštánek, František ; Bárnet, M. ; Svátek, A. ; Stránská, M. ; Hanika, Jiří
In the framework of the project BIORAF, supported by Technology Agency CR (project no. TE01020080), plantations for experimental production of Miscanthus × giganteus and Miscanthus sinensis have been founded by the project partner AGRA Co. Tall stems of this plant contain a broad spectrum of various substances (waxes, lipids, carotenoids, etc.) being potentially exploitable in cosmetics.Extraction processing of crushed dry stems using non-polar solvent is a promising way for separation of these substances into an extract, whereas the waste raffinate containing waste biomass has, after being pressed into the form of pellets, the potential for energetic utilization as green fuel.\n
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22016111814311 - PDF
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Planet Earth – Global Batch Bioreactor.
Hanika, Jiří ; Šolcová, Olga ; Kaštánek, František
Planet Earth, precisely speaking its surface shell, might be considered as a huge, multiphase, batch, biochemical reactor heated by Sun, whose energy is a unique resource. The Sun ensures our earthly life uncondicionally; moreover, it compensated the heat losses of the land, water and ice by radiation emitted from the Earth surface to its surrounding space at night. It is evident that in this macro-reactor the complex transport phenomena occurs in phases;involving mass, heat and momentum. Obviously such a responsive batch system can be only limited by resouces of carbon materials utilized in energy produstion for industrial and chemical processes.
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Lipid Extraction from Algae Trachydiscus Minutus.
Rousková, Milena ; Kohoutková, J. ; Bicová, M. ; Šolcová, Olga ; Kaštánek, František ; Hanika, Jiří
It is characteristic for some species of algae that they contain lipids. Moreover, their structure contains unsaturated fatty acids. That is of particular importance mainly due to the presence of nutritionally valuable omega-3 fatty acids, which strongly supports the health condition of a person when consumed. An exceptional position belongs to eicosapentaenoic acid (EPA), so called 20:5n3 in physiological literature. EPA is an omega-3 fatty acid and it is sometimes called the timnodonic acid1. Its molecule contains 20 carbons with 5-cis-alkene bonds. The first double bond is located at the third carbon from the omega end. It is therefore polyunsaturated fatty acid (PUFA) and is a precursor for prostaglandin E3 and/or tromboxane synthesis with significant health support effects. Another important place in human metabolism is occupied by alpha-linolenic acid (ALA), which is also an essential fatty acid. A human body converts this acid to eicosapentaneoic acid (EPA). This process significantly reduces diabetes and some types of patient's allergies.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22016111814310 - PDF
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Extraction of Carotenoids from Selected Plants
Rousková, Milena ; Maléterová, Ywetta ; Hanika, Jiří ; Šolcová, Olga
The great interest which lutein and all carotenoids have aroused during the last decades is conditioned not only by their interesting structure but by their biological and physiological importance. It is evident that their application in agriculture, food and pharmaceutical industry has a great potential for the future. Thus study of their isolation from natural resources is very important nowadays.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22015083114530 - PDF
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Pressure Hydrolysis of Protein in Waste of Chicken Cartilage and Feathers in the Presence of Carbon Dioxide
Hanika, Jiří ; Šolcová, Olga ; Kaštánek, P.
Proteins hydrolysis of chicken cartilage and feathers were carried out at increased temperature (till 120 oC) and in the presence of carbon dioxide (partial pressure 10 20 bar), which dissociates in water solution forming an acidic environment supporting the reaction. Carbon dioxide was easily detachable from the reaction mixture at the end of process. Bench scale tests were performed using a mixed autoclave (volume 2.5 lt, mixing time 5 hr). The resulting aqueous solution of amino acids contained in the same representation as peptides forming collagen and keratin of raw material. The reaction conversion was proportional to carbon dioxide partial pressure.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22015083108550 - PDF
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