Food nanotechnology and nano food safety

Nanotechnology, as a new science and technology, has been used in various fields of society. Application of nanotechnology in foods has been greatly developed nowadays, in order to improve the absorption rate of functional ingredients and nutrition supplements in the human body. But its direct or indirect impact on human health is still controversial. This paper reviews the research of nano food in and out of China, focusing on nanotechnology and nanomaterials in food processing, food packaging, food machinery, food detection and food traceability. The safety evaluation of nano food and the development trend of nano technology are also presented. According the potential risk in food industry, the strict norms and standards of nano food are needed in China and other countries.