JPWO2009066514A1 - 酸味の強さと持続性が改善された米酢及びその製造方法 - Google Patents
酸味の強さと持続性が改善された米酢及びその製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12J—VINEGAR; PREPARATION OR PURIFICATION THEREOF
- C12J1/00—Vinegar; Preparation or purification thereof
- C12J1/08—Addition of flavouring ingredients
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- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Food Science & Technology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
- Non-Alcoholic Beverages (AREA)
- Cereal-Derived Products (AREA)
Abstract
Description
(a) 原料米を蒸煮し、麹菌を接種して糖化する工程
(b) 糖化液に酵母を加えてアルコール発酵する工程
(c) アルコール含有液に酢酸菌を加えて酢酸発酵する工程
(d) 酢酸発酵液を熟成する工程
を含む米酢の製造方法において、3−メチルチオプロピオン酸エチルまたは3−メチルチオプロピオン酸エチル含有物もしくはその加工物を、酢酸発酵工程後もしくは熟成工程後の米酢か、あるいは、糖化工程後の醪もしくは酢酸発酵工程前のアルコール含有液に添加することを特徴とする、上記米酢の製造方法。
市販の米を主原料として糖化、必要に応じてアルコール発酵、続いて酢酸発酵により製造された米酢である「ミツカン米酢」(ミツカン社製)を試料とし、この3−メチルチオプロピオン酸エチル濃度を以下の方法により測定し、検出限界以下であることを確認した。
(1)「熟成酒粕」の調製
酒粕((株)小林晴吉商店製)を常温暗所にて1年間熟成した。購入直後の酒粕には3−メチルチオプロピオン酸エチルは検出限界以下であったが、1年間熟成した酒粕(熟成酒粕)は、実施例1と同様な方法で測定すると、3−メチルチオプロピオン酸エチル濃度が5ppbになっていたことが確認できた(図1)。
上記熟成酒粕を10%の割合で0.5%エタノールに浸漬し、常温でよく撹拌することによって「熟成酒粕」中の成分を抽出した。この0.5%エタノール抽出液を、実施例1で3−メチルチオプロピオン酸エチル濃度が検出限界以下であることを確認した「ミツカン米酢」に対して任意の量を添加し、3−メチルチオプロピオン酸エチルを、0.0005ppb(試験区A)、0.001ppb(試験区B)、0.006ppb(試験区C)、0.01ppb(試験区D)、0.1ppb(試験区E)、0.2ppb(試験区F)、0.4ppb(試験区G)、0.6ppb(試験区H)の各濃度になるように含有させた米酢を調製した。
(2)で調製した3−メチルチオプロピオン酸エチル濃度が異なる米酢を熟練した官能検査員のべ50名(食品の官能評価を日々行っている熟練した官能検査員20名を必要数繰り返してのべ50名)による官能検査に供し、3−メチルチオプロピオン酸エチルを添加していない米酢を対照サンプルとして比較し、食酢のすっきりとした酸味の強さ(酸味の利き)について相対的に評価した。また、香りの違和感についても同官能検査員により相対的に評価した。その結果を下記表1に示す。
市販の代表的な米酢である「華撰」(ミツカンナカノス社製:3−メチルチオプロピオン酸エチル検出限界以下)に、実施例2と同様にして製造した熟成酒粕を0.4%添加し、最終的な米酢中の3−メチルチオプロピオン酸エチル濃度が0.04ppbになるように含有させた。
実施例3で調製した3−メチルチオプロピオン酸エチルを0.04ppb含有する米酢、及び対照として無添加の米酢をそれぞれ生酢として用い、すし酢(すし飯1升用、米酢:200ml、砂糖:大さじ2.5杯、塩:大さじ2.5杯)を調製した。
食酢には、アルコールを主な原料として酢酸発酵を行うことにより得られる「酒精酢」、米、小麦、大麦、とうもろこし、稗、粟、黍といった穀物やその加工品を主な原料として液化糖化を行い、必要に応じて酒精発酵を行い、次いで酢酸発酵を行うことにより得られる「穀物酢」、ぶどう搾汁液やその加工品を主な原料として酒精発酵を行い、次いで酢酸発酵を行うことにより得られた「ぶどう酢」、ワインやその加工品を主な原料として酢酸発酵を行うことにより得られる「ワインビネガー」などの種類がある。
泡盛の3−メチルチオプロピオン酸エチル濃度は、67.2〜196.0ppbであることが報告されている(Journal of fermentation technology, Vol.64, No.2, p.129-136 (1986))。そこで、市販の泡盛(KO社製)の3−メチルチオプロピオン酸エチル濃度を実施例1と同様の方法にて測定したところ、23.9ppbであった。実施例1で3−メチルチオプロピオン酸エチル濃度が検出限界以下であることを確認した「ミツカン米酢」に、上記の泡盛を添加し、最終的な米酢中の3−メチルチオプロピオン酸エチル濃度が0.15ppbとなるように含有させた。
実施例6で調製した3−メチルチオプロピオン酸エチルを0.15ppb含有する米酢、及び対照として無添加の米酢をそれぞれ生酢として用い、すし酢(すし飯1升用、米酢:200ml、砂糖:大さじ2.5杯、塩:大さじ2.5杯)を調製した。
実施例6で調製した3−メチルチオプロピオン酸エチルを0.15ppb含有する米酢、及び対照として無添加の米酢をそれぞれ生酢として用い、すし酢(すし飯1升用、米酢:200ml、砂糖:大さじ2.5杯、塩:大さじ2.5杯)を調製した。
Claims (9)
- 3−メチルチオプロピオン酸エチルを0.006〜0.2ppbの濃度範囲で含有することを特徴とする米酢。
- 3−メチルチオプロピオン酸エチルが天然の3−メチルチオプロピオン酸エチル含有物またはその加工物から得られたものである、請求項1に記載の米酢。
- 3−メチルチオプロピオン酸エチル含有物またはその加工物が熟成酒粕またはその加工物である、請求項2に記載の米酢。
- 3−メチルチオプロピオン酸エチルまたは3−メチルチオプロピオン酸エチル含有物もしくはその加工物を、米酢中の3−メチルチオプロピオン酸エチルが0.006〜0.2ppbの濃度範囲となるように少なくとも一つの工程で添加することを特徴とする、米酢の製造方法。
- 以下の工程:
(a) 原料米を蒸煮し、麹菌を接種して糖化する工程
(b) 糖化液に酵母を加えてアルコール発酵する工程
(c) アルコール含有液に酢酸菌を加えて酢酸発酵する工程
(d) 酢酸発酵液を熟成する工程
を含む米酢の製造方法において、3−メチルチオプロピオン酸エチルまたは3−メチルチオプロピオン酸エチル含有物もしくはその加工物を、酢酸発酵工程後もしくは熟成工程後の米酢か、あるいは、糖化工程後の醪もしくは酢酸発酵工程前のアルコール含有液に添加することを特徴とする、上記米酢の製造方法。 - 3−メチルチオプロピオン酸エチル含有物もしくはその加工物が熟成酒粕もしくはその加工物である、請求項4または5に記載の米酢の製造方法。
- 請求項1から3のいずれかに記載の米酢を含有する飲食品。
- 請求項4から6のいずれかに記載の方法で製造された米酢を含有する飲食品。
- すし酢である、請求項7または8に記載の飲食品。
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JPS6293236A (ja) * | 1985-10-19 | 1987-04-28 | Sogo Kagaku Giken Kk | 活力増強ドリンク剤の製造方法 |
JPH1057007A (ja) * | 1996-06-11 | 1998-03-03 | Nakano Vinegar Co Ltd | マイルド酸性調味料 |
JP2002153254A (ja) * | 2000-11-24 | 2002-05-28 | Chuko Shuzo Kk | 泡盛蒸留粕を利用した食酢及びその製造方法 |
JP2005130705A (ja) * | 2003-10-28 | 2005-05-26 | Mitsukan Group Honsha:Kk | 食酢 |
JP2006094838A (ja) * | 2004-09-30 | 2006-04-13 | Nanto Shuhan Kk | 泡盛黒麹の酵素溶解法による有機酸増強もろみ酢とその製法 |
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JPS6293236A (ja) * | 1985-10-19 | 1987-04-28 | Sogo Kagaku Giken Kk | 活力増強ドリンク剤の製造方法 |
JPH1057007A (ja) * | 1996-06-11 | 1998-03-03 | Nakano Vinegar Co Ltd | マイルド酸性調味料 |
JP2002153254A (ja) * | 2000-11-24 | 2002-05-28 | Chuko Shuzo Kk | 泡盛蒸留粕を利用した食酢及びその製造方法 |
JP2005130705A (ja) * | 2003-10-28 | 2005-05-26 | Mitsukan Group Honsha:Kk | 食酢 |
JP2006094838A (ja) * | 2004-09-30 | 2006-04-13 | Nanto Shuhan Kk | 泡盛黒麹の酵素溶解法による有機酸増強もろみ酢とその製法 |
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