title: Proximate composition and nutritional quality of deep sea growth sea cucumbers (Stichopus japonicus) from different origins.
abstract: BACKGROUND
  Deep sea growth sea cucumber (Stichopus japonicus) (DSG-SC) is considered a most nutritious and luxurious seafood in Asia. This study compared the proximate composition and nutritional quality of collagen, polysaccharides, amino acids (AAs) and fatty acids (FAs) in DSG-SCs from different origins.
  
  
  RESULTS
  The contents of protein, ash, carbohydrate, fat, collagen, saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), total amino acids (TAAs), essential amino acids (EAAs), fucose and uronic acid differed among the origins. DSG-SC of Dalian origin had lower contents of ash, fat, uronic acid, TAAs and EAAs but higher contents of protein, collagen, PUFAs, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and fucose compared with the other origins. DSG-SCs had a higher proportion of PUFAs and were richer in polysaccharides than other seafood. Glutamate and glycine were the dominant AAs, while leucine and threonine were the most abundant EAAs.
  
  
  CONCLUSIONS
  DSG-SCs are a good source of collagen, polysaccharides (especially fucose), EAAs (especially leucine and threonine) and PUFAs (especially EPA and DHA). Dalian seems to be a promising origin to produce high-value sea cucumber with high PUFA, fucose, collagen and protein contents. © 2015 Society of Chemical Industry.
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Gao
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.|Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian, 116023, China.
authors.forename: Zhibo
authors.initials: Z
authors.lastname: Li
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.|Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian, 116023, China.
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Qi
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Guo
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.
authors.forename: Yantong
authors.initials: Y
authors.lastname: Lin
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.|Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian, 116023, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: College of Sciences, Dalian Ocean University, Dalian, 116023, China.
authors.forename: Yucai
authors.initials: Y
authors.lastname: Hu
authors.affiliation: College of Food Science and Engineering, Dalian Ocean University, Dalian, 116023, China.|Liaoning Provincial Aquatic Products Analyzing, Testing and Processing Technology Scientific Service Centre, Dalian, 116023, China.
authors.forename: Qiancheng
authors.initials: Q
authors.lastname: Zhao
mesh_terms: D000596:Amino Acids / Q000737:chemistry; D000818:Animals; D002681:China; D003094:Collagen / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry; D005504:Food Analysis; D063427:Food Quality; D009753:Nutritive Value; D011134:Polysaccharides / Q000737:chemistry; D012616:Sea Cucumbers / Q000737:chemistry*
chemical_list: D000596:Amino Acids; D005227:Fatty Acids; D011134:Polysaccharides; D003094:Collagen
keywords: Stichopus japonicus; amino acids; fatty acids; nutritional quality; proximate composition; sea cucumber