Photographing fruit that glows

I have been fascinated with natural objects that glow when you place them under a black light or other UV sources. In this photo I found some ornamental fruit that basically tastes really bad and cut a couple open to see if they would glow under a black light. To my amazement these glowed brighter than any other citrus type fruit I have checked under a black light. Its cool how you can see the structure of the veins in the center of the fruit. I was surprised to see even the seeds glowing when cut in half and placed under the black light.

I edited this photo a bit to bring out the details even more.

I did an even heavier edit on this one to really showcase the structure of the veins.

Finally I poured some tonic water over them to see if it would have any impact on the photo.

I hope you liked my fun little experiment.