Category Archives: Year 2011 Issue 9

Can we safely use the chemicals?

Can we safely use the chemicals? BAŃKOWSKA A., PALCZEWSKA-TULIŃSKA M., KRZEŚLAK A. Please cite as: CHEMIK 2011, 65, 9, 859-866 Based on the report, you can find that many warning symbols (pictograms), both old and new, introduced by CLP, located on the packaging of chemical products is not widely known. Reading the entire report gives a picture of the level of knowledge, and thus shows the courses of action to be taken by Member States and their authorities and advisory and non-governmental organizations to increase...
Read more

Determining of color of bio-oils from berry seeds obtained thruogh supercritical extraction technique using UV-Vis spectrophotometry

Determining of color of bio-oils from berry seeds obtained thruogh supercritical extraction technique using UV-Vis spectrophotometry RÓJ E., DOBRZYŃ SKA-INGER A, GRZĘDA K., KOSTRZEWA D. Please cite as: CHEMIK 2011, 65, 9, 859-866 The paper presents results of studies on the spectrophotometric determination of the color of bio-oils obtained by supercritical extraction technique. The method used allowed to identify the changes of individual groups of pigments in bio-oils depending on the extraction time, and finally, the result was to determine the intervals of sampling time to...
Read more

Supercritical extraction of plant material with carbon dioxide. Scaling up from laboratory to ?-technical scale

Supercritical extraction of plant material with carbon dioxide. Scaling up from laboratory to ?-technical scale BUJNOWSKI Z., BRZOZOWSKI R., SZARLIK S., CYBULSKI J., JEZIERSKA-ZIĘBA M., KĄKOL B., DĄBROWSKI Z., GOŚ A. Please cite as: CHEMIK 2011, 65, 9, 849-858 Velocity and yield of the extraction of linseed cake and leafs of green tea with supercritical carbon dioxide were tested. Initially both processes were tested in the laboratory scale (150 cm3) under pressure of 20 MPa, using a dried and grinded plant feed (90-140 g). The influence...
Read more

Studies on the extraction of cyclic peptides from flax waste materials

Studies on the extraction of cyclic peptides from flax waste materials JEZIERSKA-ZIĘBA M., KĄKOL B., BUJNOWSKI Z., BRZOZOWSKI R., DĄBROWSKI Z., KUCZYŃSKA A., SZPAKIEWICZ M., SZARLIK S., CYBULSKI J. Please cite as: CHEMIK 2011, 65, 9, 837-848 Cyclopeptides were separated from linseed cakes and chaff using two methods: supercritical and liquid CO2 extraction and traditional solvent extraction. Tests were carried out on the dependencies of cyclopeptide extraction using CO2 on the temperature and duration of the process. Studies have shown that high temperature of solvents increases...
Read more

Polish industrial installations for extracting plant materials in supercritical conditions

Polish industrial installations for extracting plant materials in supercritical conditions RÓJ E., DOBRZYŃ SKA-INGER A. Please cite as: CHEMIK 2011, 65, 9, 827-836 In the paper the national technological achievements in the extraction of raw materials has been discussed. Technology for extraction of raw materials in industrial-scale plant was designed and implemented in the Fertilizer Institute (INS) in Puławy. In 2000 INS launched as a first in the country, as well as in the countries of Central and Eastern Europe, industrial scale plant...
Read more