Preservation of Shellfish Undulate Venus (<i>Paphia undulate</i>) by Canning with Different Treatments

Abstract

Our study investigated preservation Undulate venus (Paphia undulata) by canning via three treatments that are canned raw, canned smoked and canned cooked as a healthy product with high nutritional value. Results reported that edible meat of Paphia undulata was free from Cu, Pb and Cd as a result of washing process. There was significantly (p < 0.05) higher in moisture content of canned raw compared with other tow treatments of canned smoked and canned cooked of Paphia undulata, and there was significantly reduction of protein content (p < 0.05) in tow treatments of canned smoked and canned cooked compared with the canned raw. Significant different (p < 0.05) in fat content was canned raw < canned smoked < canned cooked. On the other side, the three treatments of canned shellfish Paphia undulata had significant difference (p < 0.05) in content of ash and carbohydrates content. Canned smoked of shellfish Paphia undulata showed the lowest value of pH. All treatments of canned shellfish Paphia undulata were rich in minerals where canned raw treatment was higher in Ca, Fe, Zn, Mg, and Mn. While canned smoked had minerals content lower than canned raw. Lightness (L*) had slightly difference between all treatments of canned shellfish Paphia undulata.Reduction on lightness and redness was noticed at the same time in all treatments of canned shellfish Paphia undulate, canned raw had the highest value of lightness (L*), and redness (a*). Canned smoked had the highest value of hardness followed by canned raw then canned cook. Slightly significant difference (p < 0.05) was noticed between three treatments in sensory properties, data showed that all panelists preferred canned cooked than raw canned and canned smoked, degree of canned cooked was excellent.

The gametogenic cycle and spawning of the short-necked clam, Paphia undulata Born, 1778 (Bivalvia: Veneridae) from Timsah Lake, Suez Canal, Egypt

“…Bivalves are a major source of protein for the community [ 1 – 3 ]. It's a good source of protein, containing approximately 68.77% crude protein on a "dry weight basis" [ 4 – 7 ], and it's high in proteins, particularly essential amino acids, which are considered an essential source of nutrients for many people, particularly in developing countries [ 8 ]. The clams are consumed locally in Egypt, and its population has declined across the Egyptian fisheries in the past decade.…”