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http://dx.doi.org/10.5657/KFAS.2016.0772

Processing and Quality Characteristics of Retort Pouched Oyster Soup from IQF Oyster Crassostrea gigas  

Hwang, Young-Sook (Tongyeong Cooking Vocational Training Institute)
Cho, Jun-Hyun (Department of Seafood and Aquaculture Science, Gyeongsang National University)
Hwang, Seok-Min (Korea Department of Food Service and Culinary, International University of Korea)
Kim, Sang-Hyun (Marine Life Industry Promotion Center)
Kim, Byeong-Gyun (Hansung Fishery Co. Ltd.)
Oh, Kwang-Soo (Department of Seafood and Aquaculture Science/Institute of Agriculture and Life Science, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.49, no.6, 2016 , pp. 772-778 More about this Journal
Abstract
To develop a value-added product from individually quick-frozen oysters Crassostrea gigas (IQFO), we prepared a retort pouched oyster soup (RPOS) from IQFOs and characterized its processing conditions and quality metrics. We found that the most appropriate manufacturing process for the RPOS consisted of half-thawing and washing raw IQF oysters, blanching, adding them to the retort pouch along with other ingredients (base soup stock, IQF oyster extract, radish, bean sprouts, garlic, and red pepper), sealing, retort sterilization ($120^{\circ}$, F0-value 10 min.), cooling, and packaging inspection. The moisture, crude protein, pH and salinity of the RPOS were 91.0%, 2.8%, 6.20 and 0.9%, respectively. The total amino acid content of the RPOS was 2,163.8 mg/100 g, and the main amino acids were glutamic acid, aspartic acid, leucine, proline, lysine and arginine. The primary inorganic ions were Na, K, S and Zn. In taste compounds, total free amino acid content was 313.4 mg/100 g, and the main free amino acids were glutamic acid, taurine, proline, hydroxyproline, aspartic acid, glycine, alanine, valine, lysine and arginine. This RPOS has good storage stability and organoleptic qualities compared with commercial retort pouched shellfish soup, and is suitable for commercialization as a value-added instant seafood soup.
Keywords
Crassostrea gigas; IQF oyster; Oyster soup; Retort pouch;
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Times Cited By KSCI : 7  (Citation Analysis)
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