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Potential use of natural pigments on laccase-based TTI Prototype Substrate specificities and variations in Arrhenius activation energy

, : Potential use of natural pigments on laccase-based TTI Prototype Substrate specificities and variations in Arrhenius activation energy. Food Science and Biotechnology 21(5): 1451-1456

Non-toxic dyes and natural pigments were examined as potential substrates for a laccase-based time temperature integrator (I) prototype. Five compounds such as bromothymol blue (D1), methyl orange (D2), laccaic acid (P1), a pigment from bokbunja (Rubus coreanus) fruit (P2), and Gardenia blue pigment (P3) were all catalyzed, resulting in significant changes in color. CIE-Lab and ?E appeared to have the most linear dependency on reaction time. Reaction rate constants, k, were estimated at 10 37 C with the coefficients of determination, R2, being the lowest at 0.94. The Arrhenius activation energies, Ea, were 42.6 66.1 kJ/mol depending on the substrate. The results show that alterations in Ea of this I is a very important finding in that Ea of the laccase-based I could be modulated with substrates to assess time-temperature history accurately and that a wide range of color compounds offer an opportunity for color-coded I to assure color blind individuals food safety.


DOI: 10.1007/s10068-012-0191-1

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Mazinani, B.E.; Merx, E.; Plange, N.; Walter, P.; Roessler, G.F., 2014: Topography of retinal recovery processes in humans. The purpose of this study was to examine retinal recovery processes to pographically by the application of three flash sequences with specific interstimulus intervals. Twelve healthy subjects underwent multifocal electroretinography with a light-e...

Parthasarathy, M.; Murphy, P.A., 1997: Thoughts on vitamin A fortification. A letter responds to Murphy's article in the September 1996 issue on the implementation of vitamin A fortification in developing countries. A number of points concerning the technical problems associated with vitamin A fortification in these...

Milstein, S.J.; Barantsevitch, E.; Leone Bay, A.; Wang, N.F.; Sarubbi, D.J.; Santiago, N.B., 1998: Active agent transport systems. Official Gazette of the United States Patent & Trademark Office Patents 1207(1): 368-369, Feb 3

Vállez García, D.; Doorduin, J.; de Paula Faria, D.; Dierckx, R.A.J.O.; de Vries, E.F.J., 2017: Effect of Preventive and Curative Fingolimod Treatment Regimens on Microglia Activation and Disease Progression in a Rat Model of Multiple Sclerosis. Fingolimod was the first oral drug approved for multiple sclerosis treatment. Its principal mechanism of action is blocking of lymphocyte trafficking. In addition, recent studies have shown its capability to diminish microglia activation. The effe...

Dolinska, B.; Zientarska, G.; Ryszka, F., 1995: Gonadorelin release from suspensions with chosen metal ions. Pharmazie 50(1): 52-53

Wilkinson, R.; Lucas, G.L.; Heath, D.A.; Franklin, I.M.; Boughton, B.J., 1986: Hypomagnesaemic tetany associated with prolonged treatment with aminoglycosides. British Medical Journal 292(6523): 818-819

Gallagher, J.P.; Inokuchi, H.; Nakamura, J.; Shinnick-Gallagher, P., 1981: Effects of anticonvulsants on excitability and GABA sensitivity of cat dorsal root ganglion cells. Neuropharmacology 20(5): 427-433

Petr Heneberg, 2012: Flagship bird species habitat management supports the presence of ground-nesting aculeate hymenopterans. Burrowing birds, such as sand martins (<i>Riparia riparia</i>), are tightly bound to resource patches narrowly defined by soil penetrability, clay content, low incidence of parasites, and sufficient amount of aerial prey. Such habitat...

Brewer J.S.; Grace J.B., 1990: Plant community structure in an oligohaline tidal marsh. An oligohaline tidal marsh on the northern shore of Lake Pontchartrain, LA [USA] was characterized with respect to the distributions and abundances of plant species over spatial and temporal gradients using Detrended Correspondence Analysis (DCA)....

Thomas, Cyrus, 1880: Notes on Orthoptera. Consists principally of notes also published in the Second Rep. U. S. Ent. Com.