Backlit lemon

My goal today was to photograph a lemon slice, highlighting its transparency, against a black background. I didn't get the exact shot I was looking for - there was light leakage around the edge of the lemon and the lemon itself was not very fresh, so there are brown spots and it's pretty dried out.  I'll try again, but I'm not exactly sure how to get the complete effect (even with a fresh lemon!)