STEROL, PHOSPHOLIPID, MINERAL CONTENT AND PROXIMATE COMPOSITION OF FILETS OF SELECT FRESHWATER FISH SPECIES

Abstract

This paper tabulates the sterol, phospholipid, mineral content and the proximate composition of fifteen species of freshwater fish [Bass, Rock (Ambloplites rupestris); Bass, White (Morone chrysops); Bullhead, Brown (Ictalurus nebulosus); Burbot (Lota lota); Carp (Cyprinus carpio); Crappie, Black (Pomoxis nigromaculatus); Drum, Freshwater (Aplodinotus grunniens); Perch, White (Morone americanus); Perch, Yellow (Perca flavescens); Pike, Northern (Esox lucius); Pike, Walleye (Stizostedion vitreum); Smelt, American (Osmerus mordax); Sucker, White (Catostomus commersonni); Sunfish, Pumpkinseed (Lepomis gibbosus); Trout, Brook (Salvelinus fontinalis); Trout, Lake (Salvelinus namaycush); Trout, Rainbow (Salmo gairdneri)]. The fish contained an average 78, 19 and 1.1 percent moisture, protein and ash, respectively. Potassium, phosphorus and calcium averaging 400, 200 and 100 mg/100 g filet were the predominant mineral components. The lipid contents of filets ranged from 0.7 for rock bass to 7.2 for lake trout with most species averaging around 2.0% lipid. Phospholipids ranged from 185 to 875 mg/100 g filet and showed an inverse relationship to the total lipids. Cholesterol was the only sterol present and averaged 70 mg/100 g filet. Cholesterol showed a weak correlation with protein content of filet.