Israeli startup Unispectral (see Mar 2015 newsletter) is developing miniature digital cameras that can fit into smartphones and use hyper-spectral sensors that can (for example) check if fruit is fresh or whether milk contains bacteria.  Unispectral has just raised $7.5 million of funding.

http://www.globes.co.il/en/article-israeli-camera-sensor-co-unispectral-raises-75m-1001115000