Authors:A. Kumar, J.P.S. Gill, J.S. Bedi, and P.K. Chhuneja
standard in organic solvents (methanol for oxytetracycline and acetonitrile for erythromycin) to achieve a final concentration of 1 mg ml -1 . Stock solutions were stored at 4 °C for about 4 weeks. Working standards solutions of oxytetracycline (2.5100 ng g
Authors:D. Koren, B. Hegyesné Vecseri, and G. Kun-Farkas
variety of food matrices, and the relatively low concentration of the analytes ( Arcot & Smrestma, 2005 ). In this study the microbiological assay was applied, because it is suitable for the determination of total folate content, does not require
fruktooligosacharydów (FOS) o zróżnicowanym składzie oligomerycznym z wykorzystaniem enzymatycznej biokonwersji sacharozy. (Production of fructooligosaccharide (FOS) concentrations with various contents of oligomers using enzymatic bioconversion of saccharose
Rupasinghe, H.P.V. & Clegg, S. (2007): Total antioxidant capacity, total phenol content, mineral elements, and histamine concentrations in wines of different fruit sources. J. Fd Compos. Anal., 20, 133–137.
Milk gangliosides have gained considerable attention because they participate in diverse biological processes, including neural development, pathogen binding, and activation of the immune system. The aim of this study was to determine the concentrations of total gangliosides in dairy products and to determine whether there is a significant difference in comparison to concentration of gangliosides in cow’s milk. The concentration of total gangliosides in dairy products was significantly higher than concentration in cow’s milk. The highest concentration of gangliosides was determined in yogurt with 3.2% of milk fat.
.32 mm). Gas chromatography coupled with mass spectrometry (GC–MS) was performed in a Trio 2000 Fisons Instrument. Thermogravimetric analysis (TGA) of the solid catalysts was performed by Shimadzu TG/DTA/DTG-60. Metal concentrations of fresh and used
Authors:A. Bagdi, G. Balázs, J. Schmidt, M. Szatmári, R. Schoenlechner, E. Berghofer, and S. Tömösközia
, I.F.F. & Strain, J.J. (1999): Ferric reducing/antioxidant power assay: Direct measure of total antioxidant activity of biological fluids and modified version for simultaneous measurement of total antioxidant power and ascorbic acid concentration
): Effects of pH control and concentration on microbial oil production from Chlorella vulgaris cultivated in the effluent of a low-cost organic waste fermentation system producing volatile fatty acids . Bioresour. Technol. , 184 , 245 – 250