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http://dx.doi.org/10.5657/kfas.2002.35.3.259

Processing of Enzymatic Hydrolysates from Conger eel Scrap  

Kang Su Tae (Faculty of Food Science and Biotechnology, Pukyong National University)
Kong Chung Sik (Chung Food Co., LTD)
Cha Yong Jun (Depf. of Food and Nutrition, Chanwon National University)
Kim Jong Tae (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University)
Oh Kwang Soo (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.35, no.3, 2002 , pp. 259-264 More about this Journal
Abstract
In order to develope nutritional and flavoring intermediate products, the optimal processing conditions for two stage enzyme hydrolysate (TSEH) from low-utilized conger eel scrap such as head and intestine were investigated. The optimal processing conditions for TSEH were revealed in temperature at $55^{\circ}C$ 3$\~$4 hours digestion with alcalase at the 1st stage, and 4 hours at $45{\~}50^{\circ}C$ digestion with neutrase at the 2nd stage. Among water extract, steam extract and enzyme hydrolysates of conger eel scrap, the present TSEH was superior to other extracts in terms of yield ana organoleptic taste such as harmonic umami and inhibition of fishy and greasy taste formation. From the results of chemical experiments and sensory evaluation, we may conclude that TSEH of conger eel scrap could be utilized as the flavoring intermediate materials for the fisheries products such as flavoring sauces, drinkable beverage and instant food materials.
Keywords
Conger eel; Scrap; Extract; Enzyme hydrolysate; Protease; Alcalase;
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