In this paper, we consider a class of abstract fractional differential inclusion with finite delay in which the multi-valued nonlinearity is possibly superlinear. We analyze some sufficient conditions that ensure the global solvability of problem. Our main result is the existence of a compact set of decay solutions to our problem by estimating the measure of noncompactness and using the fixed point theory for a condensing map. The obtained results will be applied to a concrete polytope fractional differential system.
ZusammenfassungVerschieden konzentrierte wiljrige Fructose-Losungen (Molenbruch 0,1 -1) wurden in Zeitintervallen von 5 bis 80 min bei einer Temperatur von 130 bis 150 "C erhitzt und das sich dabei bildende Methylglyoxal bestimmt. Methylglyoxal bildet mil o-Phcnylendiamin das Dcrivat 3-Methylchinoxalin und zeigt einc Absorption in1 UV-Bereich. Nach der Scparierung und Standardisierung mitlels HPLC besteht die Moglichkeit, den Gehalt an Methylglyoxal aus dem Derivat mit einen UV-Detektor zu bestimmen. Nach ersten Ergebnisscn war die Menge an Methylglyoxal z u gering, wahrscheinlich ist es an weiteren Reaktionen beteiligt. In der Folge wurdc eine Fruktose-Losung mit einem Zusatz i i n o-Phcnylendiamin in einer solchcn Menge erhitzt, die ausreicht, um alles Methylglyoxal zu 3-Metliylchinoxalin umzusetzcn. Wahrend der Untersuchungen wurde die Konzentration an Mcthylglyoxal unter den Bedingungen der Karamelisierung in wirmebehandelter D-Fructose gemessen und die kinetischen Parameter des Prozesscs ermittelt. Es wurde fcstgestellt, daD unter diesen Bedingungcn die Bildung von Methylglyoxal in erhitzten Fructose-Losungen gemil3 einer Reaktion 1 ,Ster Ordnung errolgt und die Aktivierungsencrgie dabei 0,5 kJ/mol bctragt. SummaryConccntratcd solutions of fructose (0.1 -1 molfraction) in water were hcated at I30 -I SO ' C until 5 -80 min in sealed test-tubes and the formed methyl-glyoxal was determined. Methyl-glyoxal reacts with o-phenylen-diamin, produces 3-methyl-chinoxalin absorbing in the UV range and gives a possibility to determine the methyl-glyoxal by HPLC. The first results show very few methyl-glyoxal since biggest part of them takes part in further reactions, too. If o-phenylen-dianiin was given to the fructose solution before the heating process the methyl-glyoxal can react with it in the moment of formation. The methyl-chinoxalin was determined by HPLC and the methyl-glyoxal quantity was calculated. The formation of methyl-glyoxal from fructose takes place in a reaction of 1.5 order with an activation energy of 0.5 kJ/mol.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.