Apple slices were treated with violet LED light at 700 lx at 10°C for 4 days, and samples were collected every 2 days. The samples were stored in the dark at 10°C as a control.

We cannot see ultraviolet (UV) light but it can have hazardous effects on the human body. Ultraviolet light in sunlight can cause the skin to tan or burn. Fluorescent substances are used in energy ...