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Comparison of Biochemical Composition and Nutritional Value of Antarctic Krill (Euphausia superb) with Several Species of Shrimps

机译:南极磷虾(Euphausia Superb)与几种虾生化成分和营养价值的比较

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Antarctic krill (Euphausia superb) is a species of krill (shrimp-like crustaceans) found in the Antarctic waters of the Southern Ocean. It is the most abundant species of krill, which catchable stock is believed to amount up to 10 million tons per year, and may be the most potential marine resource for utilization as food in the world. This paper compared the nutritional components and heavy metals of edible portions of Antarctic krill, greasy-back shrimp (Metapenaeus ensis), Chinese white prawn (Exopalaemon modestus), and oriental river prawn (Macrobrachium nipponense). Antarctic krill meat contained 76.39% of water, 17.22% of crude proteins, 2.66% of crude lipids, and 1.43% of ashes, respectively. At dry basis, Antarctic krill had relatively lower content of crude protein (72.92%) than oriental river prawn (85.35%), greasy-back shrimp (81.12%), or Chinese white prawn (78.18%). However, it had significantly higher lipid content (11.25%) than the three species of shrimps (4.89%~6.65%). And the total amino acids in dry samples of Antarctic krill meat was 74.46g/100g, which was lower than the shrimps, but the essential amino acid content (45.90g/100g protein) was higher than others. Regarding to minerals, no significant difference was found in Antarctic krill and the shrimps, with exceptions that Antarctic krill contained two to three times higher content of magnesium (458.28mg/100g) and copper (4.96mg/100g) than shrimps. In addition, the heavy metals including lead (Pb), mercury (Hg), arsenic (As), chromium (Cr) in Antarctic krill meat met the limit standard of contaminants in aquatic products. But fluorine content of Antarctic krill meat surpassed the safety limit (2.0mg/kg) and might be a safety concern.
机译:南极磷虾(Euphausia Superb)是在南海南漠的南极水域中发现的磷虾(虾状甲壳类)。它是最丰富的磷虾种类,可利用的股票认为每年可达1000万吨,可能是世界上最潜在的海洋资源作为世界上的食物。本文比较了南极磷虾的食用部分和重金属的营养成分和重金属,油腻后虾(MetapeNaeus ensis),中国白虾(Exopalaemon Modestus)和东方河虾(Macrobrachium nipponense)。南极磷虾肉含有76.39%的水,粗蛋白的17.22%,粗脂质的2.66%,分别为1.43%的灰烬。在干燥的基础上,南极磷虾的含量比东方河虾(85.35%),油脂背虾(81.12%)或中国白色虾(78.18%)含量相对较低的粗蛋白质(72.92%)。然而,它具有比三种虾(4.89%〜6.65%)显着更高的脂质含量(11.25%)。南极磷虾肉类的干燥样品中的总氨基酸为74.46g / 100g,低于虾,但基本氨基酸含量(45.90g / 100g蛋白)高于其他氨基酸含量。关于矿物质,在南极磷虾和虾类中没有发现显着差异,南极磷酸盐含有比虾(458.28mg / 100g)和铜(4.96mg / 100g)含量高的两至三倍。此外,南极磷虾肉中的铅(Pb),汞(Hg),砷(Cr)包括铅(Pb),汞(Hg),铬(Cr),达到了水产品中污染物的极限标准。但南极磷虾肉的氟含量超过了安全极限(2.0mg / kg),可能是安全问题。

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