Deliberately added and "cryptic" antioxidants in three artificial diets for insects.

Characteristics of both deliberately added and "cryptic" antioxidants were assayed from hydrophilic and lipophilic extracts from artificial diets for plant bugs, lepidopteran larvae, and green lacewings. Cryptic antioxidants are defined as substances naturally existing in diet ingredients but not deliberately added because of their antioxidant potential. Diets were tested after 1) being freshly produced, 2) stored for 48 h at 4 degrees C, or 3) held for 48 h under rearing room conditions at 27 degrees C.