Dose upto 800 mJ.cm-2 reduced the concentration levels below 50 ppb. It is quite evident that, UV-A is capable of decomposing aflatoxin M1 (AFM1), a group 1 carcinogen, which poses food safety hazard and classifies WM as one of the high-risk foods . Based on the aflatoxins detotoxification results obtained in our first paper a second hypothesis was generated. The key questions related to the application of UV-A light in WM includes: (a) amino acid and lipids stability in UV-A irradiated WM; (b) assessment of key volatiles in UV exposed WM (c) a common issue in many UV-A studies is that they do not consider the optical absorbance of the fluid , hence the present study rectifies this problem by accounting for reduce scattering, absorption coefficients, correcting the fluence gradients (d) understanding aflatoxin-induced apoptosis in human hepatoma (HepG2) cells. Besides this study, there are no other reports in the scientific literature that evaluates cell apoptosis.