JP4510340B2 - Taste improving agent - Google Patents

Taste improving agent Download PDF

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Publication number
JP4510340B2
JP4510340B2 JP2001246040A JP2001246040A JP4510340B2 JP 4510340 B2 JP4510340 B2 JP 4510340B2 JP 2001246040 A JP2001246040 A JP 2001246040A JP 2001246040 A JP2001246040 A JP 2001246040A JP 4510340 B2 JP4510340 B2 JP 4510340B2
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Prior art keywords
dione
methylnonane
ppb
taste
weight
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JP2003052331A (en
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謡子 小林
賢二 熊沢
一之 三宅
秀樹 増田
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Ogawa and Co Ltd
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Ogawa and Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、飲食物、口腔用組成物又は医薬品の呈味改善剤、及び呈味改善方法に関する。
【0002】
【従来の技術】
飲食物には、一般に多数の原材料が使用されており、これら原材料にもともと含まれる呈味、香味成分や、加工や調理の過程で添加され或いは生成する呈味、香味成分が複合して、飲食物の呈味を構成する。呈味、香味成分の中には、酸味や苦味を有するものがあり、これらが時として飲食物中の不快な異味、異臭として感じられる場合がある。
また、近年の健康志向の高まりから、ビタミン類やペプチド類等を含有するドリンク剤等の飲食物や医薬品が市販されているが、ビタミン類が有する特有の臭いやペプチド類の苦味などの不快味が、これらの商品の消費拡大を妨げる一因ともなっている。
【0003】
飲食物、口腔用組成物又は医薬品(以下、総じて「飲食物等」と称する)等の異味、異臭の改善方法としては、従来から種々の方法が用いられてきた。例えば、3−ヒドロキシ−4,5−ジメチル−2−(5H)フラノン誘導体を添加することにより、呈味を増強させる方法(特開2000−342217号公報)、グルコピラノシド誘導体を添加することにより刺激的な呈味を低減する方法(特開平3−112460号公報)。バニラビーンズ抽出物を添加することにより、コク味のある甘さを賦与する方法(特開平4−94667号公報)などが知られている。
しかしながら、既存の方法ではいずれも呈味改善効果が不十分であり、また呈味改善用の添加物それ自体の特徴的な香味がかえって異味、異臭として感じられるなど、必ずしも満足できるものではなかった。
【0004】
【発明が解決しようとする課題】
本発明は、従来技術では不十分であった、飲食物等の呈味改善をより効果的に達成し、過度の苦味や酸味に起因する異味や異臭を感じることがない飲食物等の呈味改善剤並びに呈味改善方法を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記課題を解決するために本発明者らは鋭意検討した結果、3−メチルノナン−2,4−ジオンを極微量の特定濃度範囲で、飲食物等に添加すると、酸味、苦味やビタミン臭等の不快な異味、異臭を抑制し、飲食物等の呈味が改善されることを見出し、本発明を完成するに至った。
【0006】
すなわち、本発明は、3−メチルノナン−2,4−ジオンを含有することを特徴とする飲食物、口腔用組成物又は医薬品の呈味改善剤であり、また、3−メチルノナン−2,4−ジオンを10-5〜100ppbの濃度で添加することを特徴とする飲食物、口腔用組成物又は医薬品の呈味改善方法である。
さらに、本発明は、3−メチルノナン−2,4−ジオンが10-5〜100ppbの濃度で添加されていることを特徴とする飲食物、口腔用組成物又は医薬品であり、より具体的には3−メチルノナン−2,4−ジオンを10-5〜100ppbの濃度で添加することを特徴とする飲食物の苦味又は酸味の低減方法である。
【0007】
【発明の実施の形態】
以下、本発明を詳細に説明する。
本発明に使用する3−メチルノナン−2,4−ジオンは、例えば、大豆油の酸化時に生じる悪臭(もどり臭)の原因成分(Fat Sci. Technol., 1989, 91, 225-230)、乾燥したホウレン草やパセリの異臭の原因成分(Z. Lebensum. Unters. Forsch. A, 1998, 206, 108-113, 114-120)、緑茶の香気成分(Flavour Fragrance J., 1993, 8, 173-)、マスやアンチョビー加工品の香気成分(J. Agric. Food Chem., 1993, 41, 2076-2081 、J. Agric. Food Chem., 1995, 43, 453-458)等として報告され、グリーン臭を有する化合物として知られている。
上記報告例には、3−メチルノナン−2,4−ジオンが香気成分である旨の記載はある。しかしながら、この物質を極微量、飲食物等に添加した場合に、3−メチルノナン−2,4−ジオン自体の味や臭いを感じることなく、飲食物等の特に酸味、苦味、雑味等を抑制し、呈味を改善する効果を有することはこれまで知られていなかった。
【0008】
3−メチルノナン−2,4−ジオンは、一般的な合成法によって得ることができる。例えば、ノナン−2,4−ジオンをナトリウムエチラートで処理し、次いでヨードメタンによるメチル化によって3−メチルノナン−2,4−ジオンが得られる。
また、例えば英国R.C.Treatt社製の市販品が入手可能である。
【0009】
3−メチルノナン−2,4−ジオンの香気は極めて強く、水溶液中での閾値は20pptとされ、低濃度でも不快臭を感じるものであるが、飲食物等にごく微量添加した場合に限り、呈味改善効果を発揮する。添加量は添加する飲食物等により異なるが、3−メチルノナン−2,4−ジオンの臭いを感じない範囲であれば特に制限はない。一般には10-5〜100ppbが好ましく、10-4〜10ppbがさらに好ましく、10-3〜1ppbが最も好ましい。添加量が10-5ppb以下では十分な呈味改善効果が得られず、100ppb以上では3−メチルノナン−2,4−ジオン自体の臭いが強く感じられることとなり好ましくない。
なお、本明細書において「ppb」はpart per billionの略であって1ppb=10-9であり、また「ppm」はpart per millionの略であって1ppm=10-6であり、そして「ppt」はpart per trillionの略であって1ppt=10-12である。
【0010】
また、飲食物等に種々の風味を付与する目的で、3−メチルノナン−2,4−ジオンとともに下記(a)〜(h)に例示された香料成分を本発明の効果を損なわない量的範囲で、それぞれ単独で又は他と組み合わせて付加的成分として配合することもできる。
〔付加的成分〕
(a)リモネン、ミルセン、α−ピネン、β−ピネン、α−テルピネン、γ−テルピネン、カリオフィレン等の炭化水素類
【0011】
(b)ヘキサノール、ヘプタノール、オクタノール、ノナノール、デカノール、cis−3−ヘキセノール、cis−6−ノネノール、cis−3,6−ノナジエノール、シトロネロール、ゲラニオール、ネロール、リナロール、α−テルピネオール、γ−テルピネオール、テルピネン−4−オール、メントール、チモール、オイゲノール等のアルコール類
【0012】
(c)ヘキサナール、cis−3−ヘキセナール、trans−2−ヘキセナール、ヘプタナール、オクタナール、ノナナール、デカナール、ウンデカナール、10−ウンデセナール、2,6−ノナジエナール、シトラール、シトロネラール、バニリン、エチルバニリン等のアルデヒド類及びそれらのアセタール類
【0013】
(d)カルボン、プレゴン、メントン、カンファー、ヌートカトン、アセトイン、ジアセチル、2−ヘプタノン、2−オクタノン、2−ノナノン、2−ウンデカノン、p−メチルアセトフェノン、p−メトキシアセトフェノン、ラズベリーケトン、アニシルアセトン、ジンゲロン、アセチルフラン、マルトール、エチルマルトール、シクロテン、ジメチルヒドロキシフラノン、アセチルピラジン類等のケトン類及びそれらのケタール類
【0014】
(e)エチルアセテート、プロピルアセテート、ブチルアセテート、イソアミルアセテート、ヘキシルアセテート、ヘプチルアセテート、ゲラニルアセテート、リナリルアセテート、エチルプロピオネート、イソアミルプロピオネート、ヘキシルプロピオネート、ゲラニルプロピオネート、シトロネリルプロピオネート、エチルブチレート、イソアミルブチレート、ゲラニルブチレート、ブチルペンタノエート、メチルブチレート、メチルアンスラニレート等のエステル類
【0015】
(f)酢酸、プロピオン酸、酪酸、イソ酪酸、吉草酸、イソ吉草酸、カプロン酸等の脂肪酸類
【0016】
(g)メントフラン、テアスピラン、シネオール、ローズオキサイド、アネトール、メトキシピラジン類等のエーテル類
【0017】
(h)チアゾール、プロピルメルカプタン、アリルメルカプタン、フルフリルメルカプタン、ジメチルスルフィド、ジメチルジスルフィド、ジアリルスルフィド、ジアリルジスルフィド、メチオナール、フルフリルジスルフィド等の含硫化合物
【0018】
本発明の呈味改善剤の適用対象は、特に制限はなく、飲食物、口腔用組成物又は医薬品に広く使用することができる。
飲食物としては、例えば、果汁飲料類、果実酒類、乳飲料類、炭酸飲料類、コーヒー、緑茶、紅茶、ウーロン茶等の飲料類、アイスクリーム、氷菓等の冷菓類、チューインガム、チョコレート等の和洋菓子類、ジャム類、パン類、スープ類、各種調味料、各種インスタント飲食品、各種スナック食品、各種健康食品等を挙げることができる。
【0019】
また、口腔用組成物としては歯磨き類、洗口剤、口中清涼剤、トローチ、うがい薬等を挙げることができ、さらに、医薬品への使用例としては、ドリンク剤等に含まれるビタミン類やペプチド類、カフェインなどの有効成分に由来する苦味等の不快味抑制を挙げることができる。
【0020】
【実施例】
以下、本発明を実施例によって具体的に説明するが、本発明はこれらにより限定されるものではない。
[参考例]
Fat Science Technology, Vol.91, 225(1989)に記載された方法に従い、ノナン−2,4−ジオンを等モルのナトリウムエチラートとエタノール中70℃で反応させた後、等モルのヨウ化メチルを加えて3時間還流し、3−メチルノナン−2,4−ジオンを合成した。
【0021】
[実施例1]
スイートチョコレート(不二製油株式会社)100重量部に対し、3−メチルノナン−2,4−ジオンの10ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.01ppb含有する本発明のスイートチョコレートを調製した。
このチョコレートは、4名の専門パネルにより評価した結果、チョコレート生地の持つ酸味が抑えられ、チョコレート本来の甘く香ばしい風味を有するものであった。
【0022】
[実施例2(1)]
表1のチョコレート香味組成物100重量部に、3−メチルノナン−2,4−ジオンの104ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを10ppb含有する本発明のチョコレート用香味料を得た。これをスイートチョコレート100重量部に対し、0.1重量部加え、3−メチルノナン−2,4−ジオンを0.01ppb含有するチョコレートを調製した。
【0023】
【表1】

Figure 0004510340
【0024】
[実施例2(2)]
表1のチョコレート香味組成物100重量部に、3−メチルノナン−2,4−ジオンを0.2重量部加え、3−メチル−2,4−ノナンジオンを2000ppm含有する香味料を得た。これをスイートチョコレート100重量部に対し、0.1重量部を加え,3−メチルノナン−2,4−ジオンを2ppm(=2000ppb)含有するスイートチョコレートを調製した。
【0025】
[試験例1]
実施例2(1)、及び実施例2(2)のチョコレートを、3−メチルノナン−2,4−ジオン無添加品をコントロール品とし、10名の専門パネルによる官能評価を行った。
その結果を表2に示した。また評価者のコメントのうち、多かった意見を併記した。
なお、表2中の評価点は,酸味及び異味異臭を感じなかったときを7点,異味異臭を強く感じたときを1点とした7段階評価で採点した各パネルの平均点である。
【0026】
【表2】
Figure 0004510340
3−メチルノナン−2,4−ジオンの添加量が0.01ppbの場合はチョコレート生地の持つ酸味が抑えられ、チョコレート本来の好ましい風味を有していた。添加量が2ppm(=2000ppb)の場合は酸味は抑制されたものの、3−メチルノナン−2,4−ジオン自体の臭いが強く感じられた。
【0027】
[実施例3]
市販乳酸菌飲料100重量部に対し、3−メチルノナン−2,4−ジオンの100ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.1ppb含有する飲料を得た。
かかる乳酸菌飲料は、4名の専門パネルにより評価した結果、過剰な酸味が抑えられたさわやかな風味を有していた。
【0028】
[実施例4]
グレープフルーツ果汁100重量部に対し、3−メチルノナン−2,4−ジオンの100ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.1ppb含有する本発明の果汁飲料を得た。
かかる果汁飲料は、4名の専門パネルにより評価した結果、グレープルーツの苦味が低減された、口当たりのよいグレープフルーツ飲料であった。
【0029】
[実施例5]
グレープフルーツ果汁を蒸留して得られたグレープフルーツ香味料100重量部に対し、3−メチルノナン−2,4−ジオンの105ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを100ppb含有する本発明のグレープフルーツ用香味料を得た。
かかる香味料をグレープフルーツ果汁100重量部に対し0.1重量部加え、3−メチルノナン−2,4−ジオンを0.1ppb含有するグレープフルーツ飲料を調製した。
かかる飲料は、4名の専門パネルにより評価した結果、苦味が低減された口当たりのよいグレープフルーツ飲料であった。
【0030】
[実施例6(1)]
表3のグレープフルーツ香味組成物100重量部に、2−メチルノナン−2,4−ジオンの105ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを100ppb含有するグレープフルーツ飲料用香味料を得た。
これをグレープフルーツ果汁100重量部に対し、0.1重量部加え、3−メチルノナン−2,4−ジオンを0.1ppb含有するグレープフルーツ果汁飲料を調製した。
【0031】
【表3】
Figure 0004510340
【0032】
[実施例6(2)]
表3のグレープフルーツ香味組成物100重量部に、3−メチルノナン−2,4−ジオンを0.2重量部加え、3−メチルノナン−2,4−ジオンを2000ppm含有する香味料を得た。
かかる香味料を、グレープフルーツ果汁100重量部に対し、1重量部を加え、3−メチルノナン−2,4−ジオンを0.2ppm(=200ppb)含有するグレープフルーツ果汁飲料を調製した。
【0033】
[試験例2]
実施例6(1)、及び実施例6(2)のグレープフルーツ果汁飲料を、3−メチルノナン−2,4−ジオン無添加品をコントロール品とし、10名の専門パネルによる官能評価を行った。その結果を表4に示した。また評価者のコメントのうち、多かった意見を併記した。
なお、表4中の評価点は,苦味及び異味異臭を感じなかったときを7点、異味異臭を強く感じたときを1点とした7段階評価で採点した各パネルの平均点である。
【0034】
【表4】
Figure 0004510340
3−メチルノナン−2,4−ジオンの添加量が0.1ppbの場合はグレープフルーツ果汁の持つ苦味が抑えられ、グレープフルーツ本来の好ましい風味を有していた。添加量が0.2ppm(=200ppb)の場合は苦味は抑制されたものの、3−メチルノナン−2,4−ジオン自体の臭いが強く感じられた。
【0035】
[実施例7]
カフェイン0.01%w/w水溶液(ナカライテスク社製)100重量部に対し、3−メチルノナン−2,4−ジオンの10ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.01ppb含有するカフェイン水溶液を得た。
かかるカフェイン水溶液は、4名の専門パネルにより評価した結果、カフェインの苦味が顕著に抑制されていた。
【0036】
[実施例8]
表5の処方のドリンク剤100重量部に対し、3−メチルノナン−2,4−ジオンの10ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.01ppb含有するドリンク剤を得た。
かかるドリンク剤は、4名の専門パネルにより評価した結果、ペプチド由来の苦味が顕著に抑制されていた。
【0037】
【表5】
Figure 0004510340
【0038】
[実施例9]
ビタミンミックス0.02%w/w水溶液(理研ビタミン株式会社製)100重量部に対し、3−メチルノナン−2,4−ジオンの10ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4-ジオンを0.01ppb含有するドリンク剤を得た。
かかるドリンク剤は、4名の専門パネルにより評価した結果、ビタミン類に特有の異味異臭(ビタミン臭)が顕著に抑制されていた。
【0039】
[実施例10]
下記表6の処方の洗口剤100重量部に対し、3−メチルノナン−2,4−ジオンの1000ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを1ppb含む洗口剤を得た。かかる洗口剤は4名の専門パネルにより評価した結果、えぐみや収斂味の抑えられた使用しやすい洗口剤であった。
【0040】
【表6】
Figure 0004510340
【0041】
[実施例11]
ココア飲料100重量部に対し、3−メチルノナン−2,4−ジオンの10ppbエタノール溶液を0.1重量部加え、3−メチルノナン−2,4−ジオンを0.01ppb含有するココア飲料を得た。
かかるココア飲料は、4名の専門パネルにより評価した結果、酸味、苦味等の不快味が低減されたカカオの風味豊かなココア飲料であった。
【0042】
【発明の効果】
本発明に従い、3−メチルノナン−2,4−ジオンを極微量の特定濃度範囲、好ましくは10-5〜100ppbの濃度で、飲食物等に添加することによって、飲食物等の特に酸味、苦味、雑味等の異味、異臭が抑制され、飲食物等の呈味が改善される。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a taste improver for foods and drinks, oral compositions or pharmaceuticals, and a taste improvement method.
[0002]
[Prior art]
A large number of raw materials are generally used in foods and drinks, and the flavors and flavor components originally contained in these raw materials and the flavors and flavor components that are added or generated in the course of processing and cooking are combined to produce food and drink. It constitutes the taste of things. Some taste and flavor components have a sour taste and a bitter taste, and these may sometimes be felt as an unpleasant taste or odor in food and drink.
In addition, due to the recent increase in health consciousness, drinks and other foods and medicines containing vitamins and peptides are on the market, but unpleasant tastes such as the peculiar smell that vitamins have and the bitter taste of peptides. However, this is one factor that hinders the expansion of consumption of these products.
[0003]
Conventionally, various methods have been used as methods for improving off-flavors and off-flavors such as foods and drinks, oral compositions, and pharmaceuticals (hereinafter generally referred to as “foods and the like”). For example, a method of enhancing taste by adding a 3-hydroxy-4,5-dimethyl-2- (5H) furanone derivative (JP 2000-342217 A), and stimulating by adding a glucopyranoside derivative A method for reducing the taste (Japanese Patent Laid-Open No. 3-11460). A method (Japanese Patent Laid-Open No. 4-94667) for imparting a rich sweetness by adding a vanilla bean extract is known.
However, the existing methods are not always satisfactory because the taste improving effect is insufficient, and the additive flavor-adding taste itself is rather unusual and odorous. .
[0004]
[Problems to be solved by the invention]
The present invention achieves the taste improvement of foods and drinks, etc., which was insufficient with the prior art, and tastes of foods and drinks that do not feel an unpleasant taste or odor due to excessive bitterness or acidity An object is to provide an improving agent and a taste improving method.
[0005]
[Means for Solving the Problems]
As a result of intensive investigations to solve the above problems, the present inventors have found that when 3-methylnonane-2,4-dione is added to foods and drinks in a very small specific concentration range, acidity, bitterness, vitamin odor, etc. It has been found that taste and taste of foods and drinks are improved by suppressing unpleasant taste and odor, and the present invention has been completed.
[0006]
That is, the present invention is a taste improver for foods, beverages, oral compositions or pharmaceuticals characterized by containing 3-methylnonane-2,4-dione, and 3-methylnonane-2,4- It is a method for improving the taste of foods, beverages, oral compositions or pharmaceuticals, characterized in that dione is added at a concentration of 10 -5 to 100 ppb.
Furthermore, the present invention is a food, beverage, oral composition, or pharmaceutical, characterized in that 3-methylnonane-2,4-dione is added at a concentration of 10 −5 to 100 ppb. It is a method for reducing the bitterness or sourness of food or drink, characterized by adding 3-methylnonane-2,4-dione at a concentration of 10 −5 to 100 ppb.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
The 3-methylnonane-2,4-dione used in the present invention is, for example, a causative component (Fat Sci. Technol., 1989, 91, 225-230) that causes malodor (return odor) generated during oxidation of soybean oil, dried. Ingredients that cause off-flavors in spinach and parsley (Z. Lebensum. Unters. Forsch. A, 1998, 206, 108-113, 114-120), aroma components in green tea (Flavour Fragrance J., 1993, 8, 173-), Aroma components of trout and processed anchovy products (J. Agric. Food Chem., 1993, 41, 2076-2081, J. Agric. Food Chem., 1995, 43, 453-458) etc. are reported and have a green odor Known as a compound.
In the above reported example, there is a description that 3-methylnonane-2,4-dione is an aroma component. However, when this substance is added in a trace amount to foods and drinks, the acidity, bitterness, miscellaneous taste, etc. of foods and drinks are suppressed without feeling the taste and smell of 3-methylnonane-2,4-dione itself. However, it has not been known so far to have an effect of improving taste.
[0008]
3-methylnonane-2,4-dione can be obtained by a general synthesis method. For example, nonane-2,4-dione is treated with sodium ethylate and then methylated with iodomethane to give 3-methylnonane-2,4-dione.
Further, for example, a commercial product manufactured by RCTreatt of the UK is available.
[0009]
The aroma of 3-methylnonane-2,4-dione is extremely strong and the threshold value in an aqueous solution is 20 ppt, and an unpleasant odor is felt even at a low concentration. However, it is present only when a very small amount is added to food and drink. Demonstrate the effect of improving taste. The amount of addition varies depending on the food and drink to be added, but is not particularly limited as long as it does not feel the odor of 3-methylnonane-2,4-dione. In general, it is preferably 10 −5 to 100 ppb, more preferably 10 −4 to 10 ppb, and most preferably 10 −3 to 1 ppb. If the addition amount is 10 −5 ppb or less, a sufficient taste improving effect cannot be obtained, and if it is 100 ppb or more, the odor of 3-methylnonane-2,4-dione itself is strongly felt, which is not preferable.
In this specification, “ppb” is an abbreviation for part per billion and 1 ppb = 10 −9 , “ppm” is an abbreviation for part per million and 1 ppm = 10 −6 , and “ppt "Is an abbreviation for part per trillion, where 1 ppt = 10-12 .
[0010]
In addition, for the purpose of imparting various flavors to food and drink, etc., a quantitative range that does not impair the effects of the present invention for the fragrance components exemplified in the following (a) to (h) together with 3-methylnonane-2,4-dione. In addition, each may be added alone or in combination with the other as an additional component.
[Additional ingredients]
(A) Hydrocarbons such as limonene, myrcene, α-pinene, β-pinene, α-terpinene, γ-terpinene, caryophyllene, etc.
(B) Hexanol, heptanol, octanol, nonanol, decanol, cis-3-hexenol, cis-6-nonenol, cis-3,6-nonadienol, citronellol, geraniol, nerol, linalool, α-terpineol, γ-terpineol, terpinene -4-ol, menthol, thymol, eugenol and other alcohols
(C) Aldehydes such as hexanal, cis-3-hexenal, trans-2-hexenal, heptanal, octanal, nonanal, decanal, undecanal, 10-undecenal, 2,6-nonadienal, citral, citronellal, vanillin, ethyl vanillin And their acetals [0013]
(D) Carvone, pregon, menthone, camphor, nootkatone, acetoin, diacetyl, 2-heptanone, 2-octanone, 2-nonanone, 2-undecanone, p-methylacetophenone, p-methoxyacetophenone, raspberry ketone, anisylacetone, gingerone , Ketones such as acetylfuran, maltol, ethyl maltol, cycloten, dimethylhydroxyfuranone, acetylpyrazine, and ketals thereof [0014]
(E) Ethyl acetate, propyl acetate, butyl acetate, isoamyl acetate, hexyl acetate, heptyl acetate, geranyl acetate, linalyl acetate, ethyl propionate, isoamyl propionate, hexyl propionate, geranyl propionate, citronellyl pro Esters such as pionate, ethyl butyrate, isoamyl butyrate, geranyl butyrate, butyl pentanoate, methyl butyrate, methyl anthranilate
(F) Fatty acids such as acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, caproic acid, etc.
(G) Ethers such as mentfuran, theaspirane, cineol, rose oxide, anethole, methoxypyrazines, etc.
(H) Sulfur-containing compounds such as thiazole, propyl mercaptan, allyl mercaptan, furfuryl mercaptan, dimethyl sulfide, dimethyl disulfide, diallyl sulfide, diallyl disulfide, methional, furfuryl disulfide, etc.
There is no restriction | limiting in particular in the application object of the taste improving agent of this invention, It can use widely for food-drinks, an oral composition, or a pharmaceutical.
Examples of the food and drink include fruit juice beverages, fruit liquors, milk beverages, carbonated beverages, beverages such as coffee, green tea, tea, oolong tea, frozen confectionery such as ice cream and ice confectionery, and Japanese and Western confectionery such as chewing gum and chocolate. , Jams, breads, soups, various seasonings, various instant foods, various snack foods, various health foods and the like.
[0019]
In addition, examples of oral compositions include toothpastes, mouthwashes, mouth fresheners, troches, mouthwashes, and examples of use in medicines include vitamins and peptides contained in drinks and the like. And unpleasant taste suppression such as bitterness derived from active ingredients such as caffeine.
[0020]
【Example】
EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
[Reference example]
According to the method described in Fat Science Technology, Vol. 91, 225 (1989), nonane-2,4-dione was reacted with equimolar sodium ethylate in ethanol at 70 ° C. and then equimolar methyl iodide. And refluxed for 3 hours to synthesize 3-methylnonane-2,4-dione.
[0021]
[Example 1]
To 100 parts by weight of sweet chocolate (Fuji Oil Co., Ltd.), 0.1 parts by weight of 10 ppb ethanol solution of 3-methylnonane-2,4-dione is added, and 0.01 ppb of 3-methylnonane-2,4-dione is contained. A sweet chocolate of the present invention was prepared.
As a result of evaluation by four professional panels, the chocolate had a sour taste that the chocolate dough had, and had an original sweet and fragrant flavor.
[0022]
[Example 2 (1)]
The present invention contains 0.1 part by weight of a 10 4 ppb ethanol solution of 3-methylnonane-2,4-dione to 100 parts by weight of the chocolate flavor composition of Table 1 and contains 10 ppb of 3-methylnonane-2,4-dione. The flavoring for chocolate was obtained. 0.1 parts by weight of this was added to 100 parts by weight of the sweet chocolate to prepare a chocolate containing 0.01 ppb of 3-methylnonane-2,4-dione.
[0023]
[Table 1]
Figure 0004510340
[0024]
[Example 2 (2)]
To 100 parts by weight of the chocolate flavor composition in Table 1, 0.2 part by weight of 3-methylnonane-2,4-dione was added to obtain a flavorant containing 2000 ppm of 3-methyl-2,4-nonanedione. The sweet chocolate which adds 0.1 weight part with respect to 100 weight part of this sweet chocolate, and contains 2-methylnonane-2,4-dione 2ppm (= 2000ppb) was prepared.
[0025]
[Test Example 1]
The chocolate of Example 2 (1) and Example 2 (2) was subjected to sensory evaluation by 10 specialist panels using a 3-methylnonane-2,4-dione additive-free product as a control product.
The results are shown in Table 2. In addition, the comments from the evaluators that were most common were also written.
In addition, the evaluation score in Table 2 is an average score of each panel scored in a seven-step evaluation, with 7 points when no sourness and off-flavor were felt and 1 when a strong off-flavor was felt.
[0026]
[Table 2]
Figure 0004510340
When the addition amount of 3-methylnonane-2,4-dione was 0.01 ppb, the acidity of the chocolate dough was suppressed, and the chocolate had a preferred flavor. When the addition amount was 2 ppm (= 2000 ppb), the acidity was suppressed, but the smell of 3-methylnonane-2,4-dione itself was strongly felt.
[0027]
[Example 3]
To 100 parts by weight of a commercially available lactic acid bacteria beverage, 0.1 part by weight of a 100 ppb ethanol solution of 3-methylnonane-2,4-dione was added to obtain a beverage containing 0.1 ppb of 3-methylnonane-2,4-dione.
Such a lactic acid bacteria beverage had a refreshing flavor with reduced excessive acidity as a result of evaluation by a panel of four experts.
[0028]
[Example 4]
To 100 parts by weight of grapefruit juice, 0.1 parts by weight of a 100 ppb ethanol solution of 3-methylnonane-2,4-dione is added, and the fruit juice beverage of the present invention containing 0.1 ppb of 3-methylnonane-2,4-dione is obtained. Obtained.
As a result of evaluation by four specialist panels, this fruit juice drink was a pleasant grapefruit drink with reduced bitterness of grapefruit.
[0029]
[Example 5]
To 100 parts by weight of grapefruit flavor obtained by distilling grapefruit juice, 0.1 part by weight of 10 5 ppb ethanol solution of 3-methylnonane-2,4-dione was added, and 3-methylnonane-2,4-dione was added. The grapefruit flavoring of the present invention containing 100 ppb of was obtained.
Such a flavoring agent was added in an amount of 0.1 part by weight to 100 parts by weight of grapefruit juice to prepare a grapefruit beverage containing 0.1 ppb of 3-methylnonane-2,4-dione.
As a result of evaluation by a panel of four specialists, this beverage was a pleasant grapefruit beverage with reduced bitterness.
[0030]
[Example 6 (1)]
Grapefruit beverage containing 100 ppb of 3-methylnonane-2,4-dione by adding 0.1 part by weight of 10 5 ppb ethanol solution of 2-methylnonane-2,4-dione to 100 parts by weight of the grapefruit flavor composition of Table 3 A flavoring agent was obtained.
This was added to 0.1 part by weight with respect to 100 parts by weight of grapefruit juice to prepare a grapefruit juice drink containing 0.1 ppb of 3-methylnonane-2,4-dione.
[0031]
[Table 3]
Figure 0004510340
[0032]
[Example 6 (2)]
To 100 parts by weight of the grapefruit flavor composition of Table 3, 0.2 part by weight of 3-methylnonane-2,4-dione was added to obtain a flavorant containing 2000 ppm of 3-methylnonane-2,4-dione.
Grapefruit juice drink containing 0.2 ppm (= 200 ppb) of 3-methylnonane-2,4-dione was added to 100 parts by weight of grapefruit juice.
[0033]
[Test Example 2]
The grapefruit juice drinks of Example 6 (1) and Example 6 (2) were subjected to sensory evaluation with 10 specialist panels using a 3-methylnonane-2,4-dione-free product as a control product. The results are shown in Table 4. In addition, the comments from the evaluators that were most common were also written.
In addition, the evaluation score in Table 4 is the average score of each panel scored in a seven-step evaluation, with 7 points when no bitterness and off-flavor were felt, and 1 when a strong off-flavor was felt.
[0034]
[Table 4]
Figure 0004510340
When the addition amount of 3-methylnonane-2,4-dione was 0.1 ppb, the bitter taste of grapefruit juice was suppressed, and the grapefruit had a preferable flavor. When the addition amount was 0.2 ppm (= 200 ppb), the bitterness was suppressed, but the smell of 3-methylnonane-2,4-dione itself was strongly felt.
[0035]
[Example 7]
To 100 parts by weight of a caffeine 0.01% w / w aqueous solution (manufactured by Nacalai Tesque), 0.1 part by weight of a 10 ppb ethanol solution of 3-methylnonane-2,4-dione was added, and 3-methylnonane-2,4 -An aqueous caffeine solution containing 0.01 ppb of dione was obtained.
As a result of evaluation of such an aqueous caffeine solution by a panel of four persons, the bitter taste of caffeine was remarkably suppressed.
[0036]
[Example 8]
A drink containing 0.01 ppb of 3-methylnonane-2,4-dione by adding 0.1 part by weight of a 10 ppb ethanol solution of 3-methylnonane-2,4-dione to 100 parts by weight of the drink formulation of Table 5. An agent was obtained.
As a result of evaluation of such a drink by a panel of four persons, the bitterness derived from the peptide was remarkably suppressed.
[0037]
[Table 5]
Figure 0004510340
[0038]
[Example 9]
To 100 parts by weight of a vitamin mix 0.02% w / w aqueous solution (manufactured by Riken Vitamin Co., Ltd.), 0.1 part by weight of a 10 ppb ethanol solution of 3-methylnonane-2,4-dione was added, and 3-methylnonane-2, A drink containing 0.01 ppb of 4-dione was obtained.
As a result of evaluating this drink by a panel of four experts, the off-flavor and odor (vitamin odor) peculiar to vitamins was remarkably suppressed.
[0039]
[Example 10]
To 100 parts by weight of the mouthwash of the formulation shown in Table 6 below, 0.1 part by weight of 1000 ppb ethanol solution of 3-methylnonane-2,4-dione is added, and the mouthwash contains 1 ppb of 3-methylnonane-2,4-dione. An agent was obtained. As a result of evaluation by a special panel of four people, this mouthwash was an easy-to-use mouthwash with reduced taste and astringency.
[0040]
[Table 6]
Figure 0004510340
[0041]
[Example 11]
To 100 parts by weight of cocoa beverage, 0.1 part by weight of a 10 ppb ethanol solution of 3-methylnonane-2,4-dione was added to obtain a cocoa beverage containing 0.01 ppb of 3-methylnonane-2,4-dione.
As a result of evaluation by four specialist panels, this cocoa beverage was a cacao-flavored cocoa beverage with reduced unpleasant taste such as acidity and bitterness.
[0042]
【The invention's effect】
According to the present invention, 3-methylnonane-2,4-dione is added to food and drink, etc. in a trace amount of a specific concentration range, preferably 10 −5 to 100 ppb. Off-flavors such as miscellaneous tastes and off-flavors are suppressed, and the taste of food and drink is improved.

Claims (3)

3−メチルノナン−2,4−ジオンを10 -3 〜1ppbの濃度で添加することを特徴とする飲食物、口腔用組成物又は医薬品の呈味改善方法。3-methylnonane-2,4-dione is added at a concentration of 10 −3 to 1 ppb, a method for improving the taste of foods, beverages, oral compositions or pharmaceuticals. 3−メチルノナン−2,4−ジオンを10 -3 〜1ppbの濃度で添加することを特徴とする飲食物、口腔用組成物又は医薬品不快な異味異臭の低減方法。3-methylnonane-2,4-dione is added at a concentration of 10 -3 to 1 ppb, a method for reducing unpleasant off-flavors of food and drink , oral compositions or pharmaceuticals . 不快な異味異臭が、苦味、酸味、ビタミン臭、えぐみ又は収斂味である請求項2に記載の方法。The method according to claim 2, wherein the unpleasant off-flavor odor is bitterness, acidity, vitamin odor, gummy or astringent taste.
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