NASA utilizes LED horticultural lighting to tune recepes for plants in space. It is is intended to enable crews to more quickly grow produce in the future during space travel or aboard the International Space Station (ISS). It has the following good points:

1, UV can eliminate plant pathogens such as mold. 

2, UV can also be used to change the appearance or flavor profile of a plant by stressing the plant.

3, The packaged LEDs are resistant to corrosion and can reliably withstand what can be a harsh environment in growth chambers.