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Establishing the hydrolysis procedure of soft shell crab (scylla sp.) in Viet Nam

In this study, the content of total lipid and protein of Scylla sp. are found to be 1.2% and 30.5%, respectively. Additionally, trace elements contents (calcium and zink) were obtained of high level with 1.76% and 203.53 mg/kg, respectively. This is a potential source of materials for application in medicine and pharmaceutical industry in Vietnam. A enzymatic hydrolysis procedure was established as well in order to keep the high nutritional value of soft-shell crab materials. Based on these results, this procedure will be optimized as prospective in next step to obtain the maximized hydrolysate yield. | Vietnam Journal of Science and Technology 56 (2A) (2018) 201-208 ESTABLISHING THE HYDROLYSIS PROCEDURE OF SOFT-SHELL CRAB (Scylla sp.) IN VIET NAM Nguyen Thi Phuong Lan1, Do Thi Thanh Trung2, Van Thu Vu2, Dao Thi Dung2, Le Tat Thanh2, * 1 Graduate University of Sciences and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 2 Institute of Natural Products Chemistry,VAST, 18 Hoang Quoc Viet street, Cau Giay, Ha Noi * Email: thanh.biotech@gmail.com Received: 12 March 2018; Accepted for publication: 12 May 2018 ABSTRACT The mud crab (Scylla sp.) belonging to Portunidae family has been aquacultured and used to provide a lot of nutrient foods and materials for supplementary food. Recent researches showed nutrient content of soft-shell crabs is higher than that of harden crabs. In this study, the content of total lipid and protein of Scylla sp. are found to be 1.2% and 30.5%, respectively. Additionally, trace elements contents (calcium and zink) were obtained of high level with 1.76% and 203.53 mg/kg, respectively. This is a potential source of materials for application in medicine and pharmaceutical industry in Vietnam. A enzymatic hydrolysis procedure was established as well in order to keep the high nutritional value of soft-shell crab materials. Based on these results, this procedure will be optimized as prospective in next step to obtain the maximized hydrolysate yield. Keywords: Mud crab, soft-shell crab, enzymatic hydrolysis. 1. INTRODUCTION The mud crab Scylla belongs to Portunidae, Decapoda, Crustacea class, Arthropoda, and includes 4 species (S. paramamosain; S. serrata; S. olivacea and S. tranquebarica) [1, 2]. The mud crab has expanded to aquaculture in recent years due to increasing demands and rising market value of this commodity [3, 4]. Soft-shell crab is a culinary term for crabs that have recently molted their old exoskeleton and are still soft [6]. Soft-shells are removed from the water as soon as they molt to prevent any hardening of their shell.