title: Physiochemical Changes and Optimization of Phosphate-Treated Shrimp (Litopenaeus vannamei ) Using Response Surface Methodology.
abstract: The objective of this study was to determine the factors responsible for the changed physiochemical properties of unpeeled shrimp treated in cold phosphate solution (2~4°C) with the intervention of 4 factors: phosphate concentration, dipping time, rotation speed, and volume of brine solution. Response surface analysis was used to characterize the effect of the phosphate treatment on shrimps by running 33 treatments for optimizing the experiment. For each treatment, phosphate amount, moisture content, and weight gain were measured. The results showed that phosphate concentration is the most important factor than other factors for facilitating phosphate penetration in the meat of the shrimp and for getting the best result. The optimum condition of phosphate-treated shrimp in this study was 110 to 120 min dipping time, 500 to 550 mL brine solution for 100 g shrimp sample, and 190 to 210 rpm agitation speed. The studied conditions can be applied in fisheries and other food industries for good phosphate treatments.
authors.affiliation: Directorate of Fishery and Fisheries Resources of Chlef, Ministry of Fisheries and Marine Resources, Algiers 16000, Algeria.
authors.forename: Saiah Djebbour
authors.initials: SD
authors.lastname: Omar
authors.affiliation: Department of Food Science and Technology, Pukyong National University, Busan 48513, Korea.
authors.forename: Je-Eun
authors.initials: JE
authors.lastname: Yang
authors.affiliation: Food Analysis Center, Silla University, Busan 46958, Korea.
authors.forename: Sang-Cheol
authors.initials: SC
authors.lastname: Oh
authors.affiliation: Research Planning & Management Division, National Institute of Food and Drug Safety Evaluation, Chungbuk 28159, Korea.
authors.forename: Dae-Wook
authors.initials: DW
authors.lastname: Kim
authors.affiliation: Department of Food Science and Technology, Pukyong National University, Busan 48513, Korea.
authors.forename: Yang-Bong
authors.initials: YB
authors.lastname: Lee
keywords: phosphate; response surface methodology; shrimp