For those of you reading this, Aunt_A is April Campbell; April is a Dave's Garden writer too. She has an article: "Watermelon Rind Pickles and Rind Mini Recipes", coming out Friday, August 29th, which may be of interest.
I'm looking forward to it myself. Because I learned in my watermelon research that the beneficial amino acid Citrulline, which is known to take part as an intermediary in our urea cycle, has other important roles in our bodies metabolism.
Citrulline is being studied now in the field of clinical nutrition. Citrulline is found in the greatest amount in the watermelon rind.