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The food waste management has become a very important part in the modern world. In the olden days, the population was very low, so that the low waste produced was easily disposed by dumping it under the soil. However, nowadays, due to high population, amount of waste is produced high which could not be dumped due to the land pollution. To overcome this problem, the food waste must be managed or utilized properly to give zero waste. Therefore, this work focused on the production of biogas from food waste through the anaerobic digestion process using iron oxide nanoparticles. The iron oxide nanocatalyst from red mud reduced the process time for the anaerobic digestion was by 5.38% compared to the noncatalytic process. The produced biogas analysis done through GCMS analysis and calculated by comparing the both anaerobic degradation setup with and without nanocatalyst. Nanocatalyzed degradation contains 50% high amount of methane and 23.5% of total amount of biogas when compared to nonnanocatalyzed degradation. [ABSTRACT FROM AUTHOR]

The main objective of this study was to evaluate the hydroethanolic extract of Senna alata for the possible free radical scavenging and cytotoxic properties. Using such hydroethanolic extract, various in vitro antioxidant assays at different concentrations were performed and analyzed. In all the assays, plant extract has good inhibitory effect. Ethanolic extract of Senna alata was further subjected into cytotoxicity against HepG2 cell line. Accordingly, it was also found that the plant extract has appreciable potency against cancer cell lines. [ABSTRACT FROM AUTHOR]