Micro circular economy conceptualized though the sustainable synthesis of a valuable opaline silica based microcidal, non-cytotoxic and free radical scavenging, composite from the dung of vechur cattle – A rare breed of bos taurus indicus

Vechur breed is the smallest cattle of the world and the milk has natural abundant A2 form of β-casein proteins and hence milk and clarified butter become premier products for the farmer, fetching high returns. This indirectly accounts for the routine uniform composition of the dung, which can be utilized as a resource for extracting value-added products, thus initiating a circular economy at the microscale.