Penggunaan Polifosfat Untuk Mereduksi Susut Masak Selama Produksi Skala Industri Udang Putih (L. vannamei) Beku di PT. Centralpertiwi Bahari, Lampung

Abstract

White shrimp (L. vannamei) is the most important shrimp export commodity in Indonesia. Shrimps are mostly exported as frozen product after cooking process.The cooking process to produce frozen shrimp generally cause undesirable cooking loss because it decrease the weight. To overcome this problem, several techniques have been developed such as soaking in salt and polyphosphate as sequestrant before cooking process. Polyphosphate and salt can increase pH and ionik strength thus increase the WHC (Water Holding Capacity) and reduce cooking loss. In addition, polyphosphate provide a synergistic effect when it is combined with salt. The purpose of this research is to determine the influence of various concentrations of polyphosphate (0%, 2%, 3%, 4%) in combination with salt (4%) on the cooking loss of industrial scale frozen zhrimp production at PT Centralpertiwi Bahari, Lampung. The physico-chemicalproperties of shrimp observed are WHC using Hamm method and phosphate content in the product as P2O5. Formula resulting in the lowest cooking loss was selected as the best formula and the effect of polyphosphate was evaluated base on organoleptic characteristic. The result indicated that 4% polyphosphate gave the smallest cooking loss. Based on sensory evaluation, all various concentration showed that there is no bitter effect on final product.