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解体せずに品質判別

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 なんでも針状のセンサーを2本入れて中の状態をたしかめるとか。まぁ、科学的な話はおいておき、自分が興味を持ったのは


 現在、卸売市場や水産加工場でのサケの品質評価は、熟練者が経験に基づいて外観から判断している。サケの等級は身の色に応じて「レッド」「ピンク」「ホワイト」の順に取引価格が高く、レッドとホワイトでは1キロ当たりの単価が倍近く違う。

の部分です。このレッドとかピンクはサケの種類ではなく、品質なんですよね。レッドってベニザケだし、ピンクはカラフトマス、ホワイトはシロザケ(サケ)ですよね。なんか混乱するような等級のような記がするのですが…

2005 03 17 04:36 PM | 固定リンク

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コメント

こんにちは。
以前標津のサケバイ記事でトラックバックをいただきました西川といいます。

標津では鮭の品質を、「ヒカリ(A)オス/メス」「Bオス/メス」「川オス/メス」などという風に区別してました。
ヒカリは銀毛、Bは海ブナ、川は文字通り川ブナです。
ご存じかとおもいますが、鮭の身の赤い色素(カロチノイド…でしたっけ?)は繁殖に近付くにつれて体表や卵などに移動していき体型もオスメスで大きく差が出てくるので、外皮の色や顔付き、体つきで逆に、身の色が判別できるんです。
上の記事にあわせると、ヒカリはレッド、Bはピンク、川はホワイトですね。

とは言っても、ケイジやメジカの様な極端に脂ののった鮭ならともかく、銀毛だと、なかなかレッドとピンクの差は区別しにくいし、ブナでもピンクとホワイトの差は難しいです。
選別する人間によっても、差異が出ちゃいますし。

だからこそ、統一基準になる機械が必要になるのかもしれませんね。

ちなみにヒカリのオスがセリ値でキロ150円だったときで、川オスは2、30円とか、もっと安かったです。
見た目真っ黒、身は真っ白の「川」は、頭と内臓を取ったのを、東京の某有名ふりかけメーカーがひとやまいくらでまとめて買い取ってました。
後で旅人仲間から聞いた話だと、身が白い方が着色料の色付きが良いからだとか……(笑)


投稿者: 西川 (Mar 26, 2005 10:33:40 AM)

西川さま、コメントありがとうございます。
ギンケとブナまでは想像できるのですが、そこにもこれだけ区分されているのですね。確かにギンブナをどう区分するかは値段にも大きく反映しますから、こういう機械などが必要になるのでしょうね。
 しかし、ブナザケが着色によいので売れるっていうのは初耳でした。こんど食べる機会があれば味わってみよっと(ってわかるのかな?)。情報ありがとうございます。

投稿者: ruger (Mar 28, 2005 9:07:23 AM)

旅の途中に北海道・留萌で関係者のひとから聞いた話だと…

ブナザケをふりかけ加工場でさらに一度「脱色」して真っ白にしてから「着色」して、ベニザケのように鮮やかな紅に染め上げる……

なんて事をしているメーカーもあるそうです。
たぶんそれって部外秘なんじゃ…
と思わなくもないですが。(^^;

普通の鮭ふりかけや鮭茶漬なのに、あんまり鮮やかな色してるのは要注意です。
値段の高い、身の赤い銀毛を、普通わざわざふりかけの原料にしたりはしませんからね。
ではでは。

投稿者: 西川 (Mar 28, 2005 7:52:10 PM)

確かに、あまり大きい声ではいえない話でしょうね。
 ただ、自分の中ではブナザケの利用としてこういうことも有りかなという気がします。
 多くの川ではブナザケを引き取ってももらえず、かといって捨てると不法投棄になるという間で、サケを獲っていますので。ですので食品として問題がないのなら(もちろん表示上も含めて)、こういう話って好意的に聞いてしまいます。
こういう発想ってよくないですかね~???

投稿者: ruger (Mar 29, 2005 9:30:31 PM)

確かに、ブナザケの利用法と言う点では良い使い方かもしれません。
着色料にしても、イコール体に悪いとも言いませんし…
味としては、脂の抜けたブナの方がふりかけにあっているかもしれないです。

ただ、例えば鮭の缶詰の材料ってほとんどカラフトマスですよね。
名前がマスなせいで、缶にいちいち「カラフトマスはサケ科サケ属の魚です」とか書かれてますけど、そういうややこしさがブナザケの加工品の場合にもある気がするんです。

サケの身は紅い、というイメージが定着しているので、その身が白っぽいとサケ
じゃないのではと疑問を抱かれかねない。
サケが白身の魚で、川に上がると身がああいうピンク色になると言う認識がもうちょっと広がっていれば、わざわざ着色したりしないですむかもしれないのになぁ、なんてちょっともったいなく思ったわけでして。

長々と書き込んですみませんでした。
これからも楽しみに記事、読ませていただきますね。それでは。

投稿者: 西川 (Apr 2, 2005 5:18:29 PM)

 色のイメージというのはあるでしょうね。初めて川ザケを頂いたとき、ちょっととまどった記憶があります。でも、食品に対していろいろといわれていることを考えれば、敢えて色を付ける必要はないですよね。
 カラフトマスの話も含め、もう少しサケについていろいろと知ってもらえる機会があるとよいのですが…、ってよく考えると仕事も含め自分がそういうことをしなくてはいけないのですね(反省反省)。
 また、気になることがございましたらコメントをいただければ幸いです。

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