Freeze drying on antioxidants

The aim of this study was to determine the effect of different drying methods on the nutritional content and antioxidant activity of purslane. Two different purslane samples have been dried using four different methods (sun, vacuum, hot air, and freeze drying). Dried and fresh samples were analyzed for their dry matter, β-carotene content, chlorophyll a and chlorophyll b contents, total flavonoid content, total flavonol content, total phenolic content, %DPPH radical scavenge activity, metal chelating activity, and color.

10p hanthienngao 30-11-2021 10 2   Download

The aim of present study was to investigate the effect of freeze drying on total antioxidant and immunoglobulin levels of bovine colostrum in desi breed (Zebu cattle). A total of 12 colostrum samples were collected from the desi breed (Zebu cattle) reared at LPM section of IVRI, Izatnagar. Collected colostrum was converted aseptically into dry powder form by freeze drying at (-) 40º C with low pressure.

11p trinhthamhodang1215 23-09-2020 5 1   Download