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網站首頁 >> 新聞動態 >>食品知識 >> 怎樣鑒別魚的質量好壞?
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怎樣鑒別魚的質量好壞?

  鮮活或剛死的魚,用手握頭時,魚體不下彎,口緊閉,魚體具有鮮魚固有的鮮明的本色和光澤,體表粘液清潔、透明;魚鱗發光,緊貼魚體,輪層明顯、完整而無脫落;眼睛澄清、明亮、飽滿,眼球黑白界限分明;鰓蓋緊閉,魚鰓清潔,鰓絲鮮紅清晰,無粘液和污垢臭味,肌肉堅實而有彈性,用手指壓凹陷處能立即復原。鮮魚還有一種特有的鮮腥味。陳腐的魚,體色暗淡無光,粘液,鱗片松,易脫落,不完整,輪層不明顯;鰓蓋松弛,魚鰓粘液增多,顏色呈現灰色或灰紫色,有顯著腥臭味;眼球凹陷,上面覆有一層灰色物質,甚至瞎眼;肌肉松軟,無彈性,肚腹膨脹,骨肉分離,并有明顯的腐臭味。


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