Analysis on the Ratio of Flesh Content and Nutritional. Quality of Esox lucius

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1 Chinese Journal of Zoology 2009,44 (3) : ( ) : 6 ( Esox lucius), :6418 %,1911 %114 %, %, %,6136 % %,,WHOΠFAO 76135,,,,, : ; ; ; ; :Q955 :A : (2009) Analysis on the Ratio of Flesh Content and Nutritional HAN Xiao2Li DU Jin2Song 3 Quality of Esox lucius LIU Li2Zhi YANG Tian2Yan ( Xinjiang Fisheries Research Institute, Urumqi , China) Abstract :The rate of flesh content and nutritional quality of six Esox lucius were measured and compared with some high quality fresh water fishes. The results showed that : the rate of flesh content of E. lucius was 6418 %, the crude protein content and fat content were 1911 % and 114 % respectively, the total content of 17 amino acids was %, in which the content of 7 essential amino acids was 8114 %, the content of delicious amino acid was 6136 %. The essential amino acids accounted for % of the total amino acids, which was lower than egg protein pattern but higher than WHOΠFAO pattern significantly. The EAAI was 76135, the first limiting amino acid was Valine, the second one was Methionine, and the third one was Isoleucine. Based on all of the analyses, it can be concluded that E. lucius was a species of high quality in nutrition. Key words : Esox lucius ;Rate of flesh content ;Protein ;Amino acid ;Nutrition evaluation ( Esox lucius),,, [1 ] [2 ] ; [3 ] ; [4 ] [5 ] ; [6 ] ( ), (No. 2007GB2G400348) ; 3,E2mail : com ;,, ; : ; E2mail : com : ,:

2 3 : ( EAAI) cm,3219 cm ; g,33019 g, ,,, ;, [7 ],, : % = , ( GBΠT ) ; ( GBΠT ) ; ( GBΠT ) ;( GBΠ T ) ; ( GBΠT ) ; ( ) ; L28500 A,GBΠT () : AAS = (AAS) (CS) (mgπg N) FAO (mgπg N) (mgπg N) CS = (mgπg N) EAAI = [ n ( aπa) ( bπb) ( jπj) ] 100 % mgπg N, n, a b j ; A B J 2 211, 6215 %6618 %, 6418 %(1) 212, 1911 % 114 % 1122 % 7719 %, 0154 mgπg 2130 mgπg 1 Table 1 The rate of flesh content of Esox lucius No. Weight (g) Body length (cm) Muscle (g) Internal organ Non2flesh part (g) Fin Skeleton Scale + Head + Gill Rate of flesh content Average

3 72 Chinese Journal of Zoology ,,8, 2, %, %,,2169 %,, 0126 %, 6136 %,36150 % 2 (%) Table 2 The amino acids composition and content of Esox lucius (account for wet sample percentage %) Amino acid Content Account for total amount of amino acids Threonine Essential amino acids Isoleucine Leucine Valine Lysine Methionine Cystine Phenylalanine Tyrosine Aspartic acid Non2essential amino acids Glycine Alanine Serine Glutamic acid Histidine Arginine Proline Total amount of essential amino acids 8114 Total amount of amino acids ,Tryptophan can be destroyed during the dissolved process, so we did not determinate. (AAS) (CS) 3 CS AAS, % ( EAAI), EAAI 76135,,, 3 311, ( Tinca tinca ) [7 ] ( Prochilodus scrof a) [8 ] ( Oncorhynchus mykiss ) [9 ] ( Lucioperca lucioperca ) [10 ] ( Siniperca chuatsi) [11 ],( Ophicephalus argus) [12 ], ( Tilapia mossambica) [13 ] ( Cyprinus carpio var. vuyuanensis) [14 ] ( Megalobrama amblycephala) [15 ] ( Colossoma brachypomum) [16 ],

4 3 : 73 Essential amino acids 3 CS AAS ( mgπg N) Table 3 Essential amino acids, CS and AAS of Esox lucius Esox lucius Egg protein standard WHOΠFAO WHOΠFAO Score pattern Threonine Valine Isoleucine Leucine Lysine Methionine + Cystine Phenylalanine + Tyrosine Total Account for total amount of amino acids 312 4, [11 ] ( Cyprinus carpio ) [17 ] ( Ctenopharyngodon idellus) [17 ] ( Perca fluuviatilis) [18 ] ( Coregonus peled) [19 ], [7 ] [9 ] [10 ] [12 ] ( Mylopha ryngodon piceus) [17 ] ; [9 ] [11 ] [17 ] [17 ] [18 ] [19 ], [7 ] Species CS AAS [10 ] [12 ] [17 ] [9 ] [10 ] [12 ] [17 ] [17 ], [9 ] [19 ] ; [9,10,12,17,19 ] Table 4 The comparison of nutrition of Esox lucius with other economic fishes Crude protein Crude fat Ash Moisture Calcium (mgπg) Phosphorus (mgπg) Esox lucius Oncorhynchus mykiss [9 ] Tinca tinca [7 ] Prochilodus scrofa [8 ] Lucioperca lucioperca [10 ] Cyprinus carpio [17 ] Carassius auratus [9 ] Ctenopharyngodon idellus [17 ] Mylopha ryngodon piceus [17 ] Siniperca chuatsi [11 ] Ophicephalus argus [12 ] Perca fluuviatilis [18 ] Parasilirus asotus [20 ] Coregonus peled [19 ] ,- means no corresponding data in the blank, and the same meaning in the following tables., 5,, [7 ] [9 ] ( Salmo aguabonita) [17 ], [1012,18 ] ;,

5 74 Chinese Journal of Zoology 44 WHOΠFAO, WHOΠFAO, ( EAAI), EAAI [7 ] [9 ] [17 ], [10 ], [11 ], [9 ] [17 ] ( + ), WHOΠFAO, WHOΠFAO, [11 ] [19 ], [9 ] [17 ] ; [9 ] [12 ] [17 ] ( Silurus asotus) [20 ], [21 ],,,, 5 Table 5 The comparison of amino acids content of Esox lucius with other economic fishes Species Total amount of amino acids Total amount of essential amino acids Π Essential amino acids account for the total amount of amino acids Essential amino acids index Esox lucius Salmo aguabonita [17 ] Oncorhynchus mykiss [9 ] Tinca tinca [7 ] Lucioperca lucioperca [10 ] Perca fluuiatilis [18 ] Siniperca chuatsi [11 ] Ophiocephalus argus [12 ] ,6, [9 ] [11 ] [18 ], [20 ], [10 ] 314, 6 Table 6 The comparison of delicate flavor amino acids content of Esox lucius with other economic fishes Delicate flavor amino acids Esox lucius [3] Oncorhynchus mykiss [4 ] Lucioperca lucioperca [5 ] Siniperca chuatsi [6 ] Parasilirus asotus [12 ] Perca fluviatilis Aspartic acid Glutamic acid Glycine Alanine Total ; ;EAAI,,,

6 3 : 75 [ 1 ],,..,2002,12 (5) :1516. [ 2 ],,..,2004, 39 (1) : [ 3 ],,..,2004,28(6) : [ 4 ],,..,2006,26(6) :4041. [ 5 ],,..,2008,28(4) : [ 6 ],,. ( ).,2006, 27 (1) :6470. [ 7 ],,..,2004,39 (1) :7679. [ 8 ],,..,2002,37(1) :3537. [ 9 ],,..,2006,26 (4) :8385. [10 ],,..,2000,20(6) :34. [11 ],,..,1995,14 (1) :8084. [12 ],,..,2002,32(2) :4647. [13 ],,..,1982, (4) : [14 ],,. ( ).,1981,5(3) : [15 ]. (). :,1990, [16 ].. :,1995,3 4. [17 ],,..,2004,34 (6) :2325. [18 ],,..,2007, (9) :5254. [19 ],,..,2004,17 (1) : [20 ],,..,1990,25 (1) :7 9. [21 ],.. :, 2002,2272.,,,,,, :,,,16,112, ,210, : ; (Code No. ) : BM58, 7 () :1 5 : ; : (010) ; E2mail : ac. cn :bird. chinajournal. net. cn ; dwxzz. ioz. ac. cn

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