1 For this reason, they are called accessory pigments. 2  One very visible accessory pigment is fucoxanthin the brown pigment which colors kelps and other brown algae as well as the diatoms. 3  Phycobilins are water-soluble pigments, and are therefore found in the cytoplasm, or in the stroma of the chloroplast.
Ceviche Variations. Ceviche is usually made with sea bass or flounder, but just about any fish or shellfish will work. The other ingredients vary widely. Ecuadorean ceviche is often made with shrimp and ketchup in addition to the lime juice and served with corn nuts. In Chile, ceviche is made with Chilean sea bass, grapefruit juice and cilantro.
After marinating for 10 to 15 minutes, the fish's exterior will start to firm up, while the center will remain tender and moistâthis is medium-rare. Let it sit for 15 to 25 minutes for medium, and 25 minutes for medium-well. The best way to decide how you like your ceviche cooked is to throw five pieces of fish in some marinade and taste every five minutes. (Keep the rest of your sliced fish chilled in the refrigerator.) This will allow you to experience how both the flavor and texture of the fish change over time.