"Polvoron" made of crab and shrimp carapace and shell is delicious and nutritious. This has been demonstrated by Viden V. Elpos, master teacher at the Concepcion Polytechnic College (CPC) in Concepcion, Iloilo, and her students. It all began when she noted that on nearby Butlog Island, "kasag" (crab) shell and carapace (the bony or chitinous case or shield covering the back of a crab or turtle) were just being dumped along the shore. She figured that there must be a way to make use of these waste materials. Last January, as reported by Augusto Surtida of the Southeast Asian Fisheries Development Center Aquaculture Department (SEAFDEC AQD), Elpos urged her graduating students to use crab shell and carapace as additives of polvoron (a popular confectionery in fully packed powder form).

Fernandez, R. A. (2002, September 8). Shrimp, crab shell good for 'polvoron'. The Philippine Star, p. B2.