Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Ján Stopka"'
Autor:
Alexandra Sládková, Martina Benedeková, Ján Stopka, Igor Šurina, Aleš Ház, Petra Strižincová, Katarína Čižová, Andrea Škulcová, Zuzana Burčová, František Kreps, Jozef Šima, Michal Jablonský
Publikováno v:
BioResources, Vol 11, Iss 4, Pp 9912-9921 (2016)
Closed-system microwave-assisted extraction was applied to extract total phenolics from spruce (Picea abies) bark, using 96.6% ethanol as an extractant. The influence of particle size (0.3; 1.0; 2.5 mm), time (3 to 20 min), and temperature (60; 80; 1
Externí odkaz:
https://doaj.org/article/b3e68adff3bd4ce18822b43df1febb66
Publikováno v:
Acta Chimica Slovaca. Dec2017, Vol. 10 Issue 2, p165-169. 5p.
Autor:
Ján Stopka, Alexandra Sládková, Andrea Škulcová, Michal Jablonský, Jozef Sima, Petra Strižincová, František Kreps, Aleš Ház, Martina Benedeková, Zuzana Burčová, Katarína Čížová, Igor Šurina
Publikováno v:
BioResources, Vol 11, Iss 4, Pp 9912-9921 (2016)
Closed-system microwave-assisted extraction was applied to extract total phenolics from spruce (Picea abies) bark, using 96.6% ethanol as an extractant. The influence of particle size (0.3; 1.0; 2.5 mm), time (3 to 20 min), and temperature (60; 80; 1
Autor:
Alexandra Sládková, Ján Stopka, Igor Šurina, Zuzana Burčová, Aleš Ház, František Kreps, Petra Strižincová, Michal Jablonský
Publikováno v:
BioResources. 13
Closed-system microwave-assisted extraction was applied to extract constituents from spruce bark, using 96.6% ethanol as an extractant. The influence of the time (1 min to 20 min), temperature (60 °C, 80 °C, and 100 °C), and liquid/solid ratio (8
Publikováno v:
Chemical Papers. 68
Influence of the heat exchanger shape on the heat transfer efficiency investigated. Heat transfer efficiency of two vertical pipe-in-pipe heat exchangers, one with a straight wall and the other with a twisted wall were compared. Both heat exchangers