“…The pesticides or foreign chemicals are the best examples of the first category, which is generally used by food producers and may remain during the final stage of food production [11][12][13] [8], [11][12][13] that may accidentally be contaminated into the food supply either via the food chain, supply chain or own kitchen. Lastly, food preservatives, sweeteners, flavour enhancer, emulsifiers, or dyes are the examples of the final category that had been added into food products in order to increase the properties of the processed food [5,7,10,15]. Commonly, the basic function of food additives is either to create the food looks and tastes better or to make the food safer, by preserving it from bacteria, preventing oxidation or other chemical changes [6,10].…”