NUTRITIONAL VALUE AND FUNCTIONAL PROPERTI POND SNAIL (Lymnaea stagnalis)

Abstract

The proximate composition, toxic substances, functional properties, and mineral elements of both the shell and meat of fresh Lymnaea stagnalis were determined. The moisture contents ofthe sample were 38.62g/
l00g; and 30.06g/1 OOgDM for both the shell and the meat respectively. Crude protein for the meat was 25.60g/100g DM while that of shell was not detectable (ND), the crude fat, and ash content for both the meat and the shell sample were 2.75g/100g DM, 0.95g/100g DM,3.41g/100g DM and 52.41g/100g DM respectively. Emulsion and absorption capacity were 6mVg for the meat and 0.20mVg for the shell, the oil absorption capacity of 10% was also determined for the shell and the meat. Mineral element composition determination showed that Lymnaea stagnalis meat is richer in sodium and potassium than the shell while the shell is richer in Calcium, Nickel, Magnesium, Cadmium, Iron, Copper, and Lead than the meat. Total oxalate was 420mg/l00g DM for the meat and 35Omg/l00g DM for the shell; hydrocyanic acid was 180mg/200g DM for the meat and 121mg/l00g DM for the shell; while tannic acid was 520mg/l00gDM for the meat 48Omg/l OOgDM for the shell.