JP2004201639A - Chlorophyll-containing food - Google Patents

Chlorophyll-containing food Download PDF

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Publication number
JP2004201639A
JP2004201639A JP2002377559A JP2002377559A JP2004201639A JP 2004201639 A JP2004201639 A JP 2004201639A JP 2002377559 A JP2002377559 A JP 2002377559A JP 2002377559 A JP2002377559 A JP 2002377559A JP 2004201639 A JP2004201639 A JP 2004201639A
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Japan
Prior art keywords
chlorophyll
zinc
containing food
tea
green
Prior art date
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Pending
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JP2002377559A
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Japanese (ja)
Inventor
Katsuhiro Shiba
克宏 柴
Takehiko Sakai
武彦 酒井
Aya Miura
亜矢 三浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INA Food Industry Co Ltd
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INA Food Industry Co Ltd
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Publication date
Application filed by INA Food Industry Co Ltd filed Critical INA Food Industry Co Ltd
Priority to JP2002377559A priority Critical patent/JP2004201639A/en
Publication of JP2004201639A publication Critical patent/JP2004201639A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chlorophyll-containing food efficiently preventing the fading of chlorophyll in the food by the addition of the minimum amount of zinc. <P>SOLUTION: The chlorophyll-containing food is produced by mixing a chlorophyll-containing food with a solution containing zinc ion and heat-treating the mixture. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、変性による退色が抑制されたクロロフィル含有食品に関する。
【0002】
【従来の技術】
植物に含まれるクロロフィルは、緑色を呈しておりその色彩を利用した商品が様々な分野において多く存在する。食品分野における最も有名な利用法として日本茶が知られており、これは老若男女を問わずに広く愛飲されている。しかしながら、この緑色は、様々な因子により劣化、退色してしまい、商品価値が著しく損なわれてしまう。
【0003】
例えば、日本茶について特記すると、茶葉を家庭で熟湯抽出して飲用する従来のスタイルから、近年飲用スタイルが変化し、既に抽出した日本茶を缶容器やペットボトルに入れた飲料が広く流通している。缶容器は、中身が見えないため比較的問題が少ないが、ペットボトルは、中身が見えるため、お茶の色は、製品価値を決める重要な要素となっている。ペットボトルに入っている日本茶は、一般的にUHT殺菌を行い、冷却後に無菌充填しているが、このUHT殺菌において日本茶中のクロロフィルが退色して黄褐色に変化してしまうという問題がある。
【0004】
同様に、嚥下困難者のための水分補給等の目的からお茶ゼリーが市販されている。このお茶ゼリーは、チィアパックやアルミパウチ、カップなどに詰めた後、レトルト殺菌されているが、これも同様にクロロフィルが退色して黄褐色に変化してしまい、製品の付加価値を下げてしまうという問題がある。
【0005】
このため、緑色劣化又は退色の対処方法として様々な方法が試行錯誤されている。クロロフィルの退色を抑止する方法として、クロロフィルに熱を加える際に塩を加えて退色を防ぐ方法、環状デキストリンを添加して退色を防ぐ方法などが知られているが、緑色を十分に維持できるほどの効果が得られていないのが現状である。また、クロロフィルの活性中心をマグネシウムから銅に置換された銅クロロフィリンが合成されているが、銅の過剰摂取による人体への影響が懸念されている。
【0006】
一方、亜鉛イオンを含む溶液に退色した植物を接触させて、亜鉛イオンの作用により植物の緑色を復元し、あるいは緑色を保持する方法が従来から知られている(特許文献1)。
【0007】
【特許文献1】
特開平10−14530号公報
【0008】
【発明が解決しようとする課題】
しかしながら、特許文献1に記載の緑色を復元、又は保持する方法は、母乳代替食品以外の食品への使用が禁止されている硫酸亜鉛を使用しており、食品に対する実用的な使用を前提としておらず、あくまでも植物の退色保持方法を示しているに過ぎない。また、特許文献1に記載の緑色を復元、又は保持する方法は、低温で処理されているため、効率的に亜鉛を作用させておらず、過剰に取り過ぎることは、貧血、悪心、発熱が生じる虞があるので、望ましくない。
【0009】
そこで、本発明は、できるだけ少ない亜鉛の含有量で食品におけるクロロフィルの退色を効率的に防止することができるクロロフィル含有食品を提供することを目的とする。
【0010】
【課題を解決するための手段】
以上の目的を達成するため、本発明者らは、鋭意研究を重ねた結果、クロロフィルが含まれている食品と亜鉛イオンが含まれている溶液とを混合し、加熱処理することにより、できるだけ少ない亜鉛を効率よく含有させることによって食品用のクロロフィルの退色を効率的に防止することを見出した。すなわち、本発明は、クロロフィルが含まれている食品と亜鉛イオンが含まれている溶液を混合し、加熱処理することにより得られることを特徴とするクロロフィル含有食品である。本発明に係るクロロフィル含有食品としては、お茶、抹茶菓子など抹茶が含まれた食品の他、昆布、ほうれん草などの加工品といった植物由来の緑色を呈する食品は全て該当する。
【0011】
本発明に係るクロロフィル含有食品は、クロロフィルと亜鉛イオンが含まれている溶液に加熱処理を施すことにより、効率よくクロロフィルの活性中心をマグネシウムから亜鉛に置換することができ、これによりできるだけ少ない亜鉛で食品におけるクロロフィルの退色を防止することができる。
【0012】
また、本発明に係るクロロフィル含有食品は、クロロフィルの活性中心がマグネシウムから亜鉛に置換されているので、人体に有用な亜鉛を摂取することができる。すなわち、亜鉛は第6次改定日本人の栄養所要量において摂取量を成人9〜15mg/日、小児4〜8mg/日前後とされている。亜鉛は、生体内においてこれを含んだ200以上の金属酵素として存在しており、亜鉛の欠乏により成長障害、食思不振、皮疹、創傷治癒障害、味覚障害、精神障害(うつ病)、免疫能低下、催奇形性、生殖能異常などを引き起こす。特に、高齢者において創傷治癒の遅延や免疫能の低下が亜鉛不足に関連していると考えられており、亜鉛の摂取は、高齢者社会を迎えた現在においては極めて重要である。
【0013】
【発明の実施の形態】
本発明に係るクロロフィル含有食品において、亜鉛イオンは、イオン化されていればどのようなものでも良く、例えば、塩化亜鉛、硫酸亜鉛、グルコン酸亜鉛、亜鉛含有ビール酵母などがある。特に食品分野においては亜鉛強化食品に一般的に使用されている亜鉛含有ビール酵母が好ましい。
【0014】
また、本発明に係るクロロフィル含有食品において、前記亜鉛イオンの含有量は、10ppmから1%であることが好ましく、特に100ppm〜5000ppmであることが好ましい。この亜鉛量以下では退色防止効果が弱く、またこの亜鉛量以上においては、使用量が高く、人体に対して十分な安全性が得られない。
【0015】
さらに、本発明に係るクロロフィル含有食品において、前記加熱処理は、80〜150℃で行われることが好ましく、特に100〜120℃で行われることが好ましい。この温度以下ではクロロフィルに亜鉛を十分に作用させることができず、またこの温度以上ではクロロフィル本来の風味が損なわれてしまう。また、本発明に係るクロロフィル含有食品において、前記加熱処理は、通常、UHT、レトルト殺菌機、ジュール加熱機、オートクレーブなどによって行われるが、羊羹などのように製造過程で100℃以上に加熱する必要がある食品においては、どのような方法によって行われても良い。
【0016】
【実施例】
次に、本発明に係るクロロフィル含有食品の実施例について説明する。
実施例1乃至4
表1に示す割合で粉末抹茶((株)あいや製)を冷水に分散した溶液に亜鉛含量10%のビール酵母(ケムコインダストリーズインク社製)を添加した後に、レトルト殺菌機を用いてこの溶液を121℃で20分間殺菌することによって、実施例1乃至4に係るクロロフィル含有食品である抹茶溶液を得た。
【0017】
【表1】

Figure 2004201639
【0018】
また、表1に示す割合で粉末抹茶((株)あいや製)を冷水に分散することによって比較例1に係るクロロフィル含有食品である抹茶溶液を得た。さらに、表1に示す割合で粉末抹茶((株)あいや製)を冷水に分散した後にレトルト殺菌機を用いてこの溶液を121℃で20分間殺菌することによって、比較例2に係るクロロフィル含有食品である抹茶溶液を得た。
【0019】
次に、実施例1乃至4、並びに比較例1及び2に係るクロロフィル含有食品それぞれを5倍に希釈して色差計(日本電色工業(株)製:ZE−2000)を用いて明度指数(L)、クロマティクネス指数(a、b)の値を測定した。Lの値は、値が大きいと明るく、小さいと暗い傾向を示し、aの値は、値が大きいと赤色、小さいと緑色を示し、bの値は、値が大きいと黄色、小さいと青色を示す。その測定結果を表2に示す。
【0020】
【表2】
Figure 2004201639
【0021】
表2から明らかなように、緑色から赤色傾向の指標であるaの値において、比較例2に係るクロロフィル含有食品は、レトルト殺菌を行ったことにより比較例1に係るクロロフィル含有食品に比し大きくなっており、緑色から赤色傾向へ変色していることが分かる。また、実施例1乃至4に係るクロロフィル含有食品のaの値は、比較例1に係るクロロフィル含有食品と同等又はそれよりも小さな値を示しており、緑色傾向が強いことが分かる。特に実施例2乃至4に係るクロロフィル含有食品は、比較例1に係るクロロフィル含有食品よりも小さな値を示しており、緑色傾向が特に強いことが分かる。
【0022】
次に、実施例1乃至4、並びに比較例1に係るクロロフィル含有食品を2000ルクスの光へ25℃、1週間曝露したものそれぞれを5倍に希釈して色差計(日本電色工業(株)製ZE−2000)を用いてL、a、bの値を測定した。その結果を表3に示す。
【0023】
【表3】
Figure 2004201639
【0024】
表2及び3に示すように、緑色から赤色傾向への指標であるaの値において、比較例1に係るクロロフィル含有食品は、約30%まで退色したのに対して、実施例1乃至4に係るクロロフィル含有食品は、約60%ほどの退色にとどまったことが分かる。
【0025】
次に、実施例4及び比較例1に係るクロロフィル含有食品についての耐pH性の実験を行うため、表4に示すようにクエン酸又は炭酸ナトリウムを用いてpHを4、6又は8に調整し、それらを85℃で30分間低温殺菌することにより試験物A、B、C、D、E、Fを得た。
【0026】
【表4】
Figure 2004201639
【0027】
次に、これら試験物A、B、C、D、E、Fそれぞれを5倍に希釈して色差計(日本電色工業(株)製:ZE−2000)を用いてL、a、bの値を測定した。その結果を表5に示す。
【0028】
【表5】
Figure 2004201639
【0029】
表5に示すように塩基性域では赤色傾向に向かうものの、試験物A、B、Cは、試験物D、E、Fよりも緑色傾向が強いこと、すなわち実施例4に係るクロロフィル含有食品は、比較例1に係るクロロフィル含有食品に比し耐pH性に優れていることが分かる。
【0030】
実施例5乃至8
抹茶粉末1%((株)あいや社製)を冷水に分散した溶液に亜鉛含有量10%のビール酵母(ケムコインダストリーズインク社製)を150ppm添加し、次いで60℃、80℃、100℃及び120℃で20分間加熱することにより実施例5乃至8に係るクロロフィル含有食品である抹茶溶液を得た。
【0031】
次に、実施例5乃至8に係るクロロフィル含有食品を5倍に希釈して色素計(日本電色工業(株)製:ZE−2000)を用いて明度指数(L)、クロマティクネス指数(a、b)の値を測定した。その結果を表6に示す。
【0032】
【表6】
Figure 2004201639
【0033】
表6に示すように緑色から赤色傾向への指標であるaの値において実施例5及び6に係るクロロフィル含有食品は、比較的高い値を示し、赤色傾向が強いことが分かる。高温で効率的に処理された実施例8に係るクロロフィル含有食品は、比較例1に係るクロロフィル含有食品よりも若干高い値であるが、同等の値を示し、緑色傾向が強いことが分かる。
【0034】
実施例9
次に、表7に示す配合で手亡練餡、寒天、砂糖、塩、粉末抹茶((株)あいや製)、亜鉛含量10%のビール酵母(ケムコインダストリーズインク社製)及び水を加熱し練り上げて、その後冷却することによって実施例9に係る抹茶水羊羹を得た。また、実施例9からビール酵母を除いたものを表7に示す配合で加熱し練り上げて、その後冷却することによって比較例2に係る抹茶水羊羹を得た。
【0035】
【表7】
Figure 2004201639
【0036】
これら実施例9及び比較例2に係る抹茶水羊羹について容器に充填後、121℃で20分間レトルト殺菌し、その後の色彩の変化を比較した。その結果、比較例2に係る抹茶水羊羹は、明らかに緑色が退色していたの対し、実施例9に係る抹茶水羊羹は、本来の抹茶の緑色を保持していた。
【0037】
実施例10
次に、表8に示す配合で手亡練餡、寒天、砂糖、粉末抹茶((株)あいや製)、亜鉛含量10%のビール酵母(ケムコインダストリーズインク社製)及び水を加熱し練り上げて、その後冷却することによって実施例10に係る抹茶羊羹を得た。また、実施例10からビール酵母を除いたものを表8に示す配合で加熱し練り上げて、その後冷却することによって比較例3に係る抹茶羊羹を得た。
【0038】
【表8】
Figure 2004201639
【0039】
これら実施例10及び比較例3に係る抹茶羊羹について容器に充填して冷却し、その後の色彩の変化を比較した。その結果、比較例3に係る抹茶羊羹は、明らかに緑色が退色していたの対し、実施例10に係る抹茶羊羹は、本来の抹茶の緑色を保持していた。
【0040】
実施例11
次に、熱水抽出した煎茶液1000gに寒天(伊那食品工業(株)製、介護食用ソフト寒天)9gと亜鉛含量10%のビール酵母(ケムコインダストリーズインク社製)0.2gを加えて加熱溶解した後、容器に詰めることによって、実施例11に係るお茶ゼリーを得た。また、実施例11からビール酵母を除いたものを加熱溶解した後、容器に詰めることによって、比較例4に係るお茶ゼリーを得た。これら実施例11及び比較例4に係るお茶ゼリーをレトルト殺菌(121℃15分間)し、殺菌後の色彩の変化を比較した。その結果、比較例4に係るお茶ゼリーは、明らかに緑色が退色していたの対し、実施例11に係るお茶ゼリーは、本来の抹茶の緑色を保持しているため、視覚的に優れており、また嚥下困難者の摂食が容易で、高齢者が必要とする亜鉛を摂取することもできる。
【0041】
実施例12
熱水抽出した煎茶液1000gに亜鉛含量10%のビール酵母(ケムコインダストリーズインク社製)0.2gを加え、UHT殺菌(130℃、30秒)を行い、無菌状態でペットボトルに入れることによって、実施例12に係る日本茶飲料を得た。また、同様にビール酵母を入れないものとして比較例5に係る日本茶飲料を得た。これら実施例12及び比較例5に係る日本茶飲料の色彩を比較したところ、実施例12に係る日本茶飲料の方が、明らかに退色がなく、本体の日本茶の色調を保持していた。
【0042】
【発明の効果】
以上のように本発明によれば、クロロフィルと亜鉛イオンが含まれている溶液に加熱処理を行うことにより、できるだけ少ない亜鉛の含有量で食品におけるクロロフィルの退色を効率的に防止することができるクロロフィル含有食品を提供することができる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chlorophyll-containing food in which discoloration due to denaturation is suppressed.
[0002]
[Prior art]
Chlorophyll contained in plants has a green color, and there are many products using the color in various fields. Japanese tea is known as the most famous use in the food field, and it is widely consumed by people of all ages. However, the green color is deteriorated or faded due to various factors, and the commercial value is significantly impaired.
[0003]
For example, special mentioning about Japanese tea, the drinking style has been changed in recent years from the conventional style of extracting and drinking tea leaves at home, and drinks containing already extracted Japanese tea in cans and PET bottles are widely distributed. ing. Since the contents of cans are relatively invisible because the contents are not visible, the color of tea is an important factor in determining the product value of PET bottles because the contents are visible. Japanese tea in PET bottles is generally sterilized by UHT and filled aseptically after cooling. However, in this UHT sterilization, there is a problem that chlorophyll in Japanese tea fades and changes to yellow-brown. is there.
[0004]
Similarly, tea jelly is commercially available for the purpose of hydration for people with dysphagia. This tea jelly is sterilized by retort after filling in tea packs, aluminum pouches, cups, etc.Also, it is said that chlorophyll discolors and turns into yellow brown, which lowers the added value of the product There's a problem.
[0005]
For this reason, various methods have been tried and error as a method of coping with green deterioration or fading. As a method of inhibiting the fading of chlorophyll, there are known a method of preventing fading by adding a salt when applying heat to chlorophyll, a method of adding a cyclic dextrin to prevent fading, etc. At present, the effect of has not been obtained. In addition, copper chlorophyllin, in which the active center of chlorophyll has been replaced by copper from magnesium, has been synthesized, but there is a concern that excessive intake of copper may affect the human body.
[0006]
On the other hand, a method of restoring the green color of a plant or maintaining the green color by the action of zinc ion by contacting a faded plant with a solution containing zinc ion is conventionally known (Patent Document 1).
[0007]
[Patent Document 1]
JP 10-14530 A
[Problems to be solved by the invention]
However, the method of restoring or retaining the green color described in Patent Document 1 uses zinc sulfate, whose use in foods other than breast milk substitute foods is prohibited, and is premised on practical use for foods. It merely shows a method for maintaining the fading of plants. In addition, the method of restoring or retaining green color described in Patent Document 1 is processed at a low temperature, so zinc is not efficiently acted on. Excessive intake results in anemia, nausea, and fever. This is not desirable because it may occur.
[0009]
Therefore, an object of the present invention is to provide a chlorophyll-containing food that can efficiently prevent chlorophyll discoloration in food with a zinc content as small as possible.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present inventors have conducted intensive studies and as a result, by mixing a food containing chlorophyll and a solution containing zinc ions, and performing a heat treatment, the heat treatment is reduced as much as possible. It has been found that fading of chlorophyll for food is efficiently prevented by efficiently containing zinc. That is, the present invention is a chlorophyll-containing food obtained by mixing a food containing chlorophyll and a solution containing zinc ions and subjecting the mixture to heat treatment. Examples of the chlorophyll-containing food according to the present invention include foods containing matcha such as tea and matcha confectionery, and all foods exhibiting a plant-derived green color such as processed products such as kelp and spinach.
[0011]
The chlorophyll-containing food according to the present invention can efficiently replace the active center of chlorophyll from magnesium to zinc by subjecting a solution containing chlorophyll and zinc ions to heat treatment, thereby reducing the zinc as much as possible. Discoloration of chlorophyll in food can be prevented.
[0012]
Further, the chlorophyll-containing food according to the present invention can consume useful zinc for the human body because the active center of chlorophyll is replaced with magnesium from zinc. That is, zinc intake is set to be about 9 to 15 mg / day for adults and about 4 to 8 mg / day for children in the sixth revised Japanese nutritional requirement. Zinc is present in the body as more than 200 metal enzymes containing it, and zinc deficiency causes growth disorders, anorexia, rash, wound healing disorders, taste disorders, mental disorders (depression), immune function Causes decline, teratogenicity, and reproductive abnormalities. In particular, it is thought that delay in wound healing and reduction in immunity in the elderly are related to zinc deficiency, and zinc intake is extremely important in the present age of the elderly.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In the chlorophyll-containing food according to the present invention, any zinc ion may be used as long as it is ionized, and examples thereof include zinc chloride, zinc sulfate, zinc gluconate, and zinc-containing beer yeast. Particularly in the food field, zinc-containing brewer's yeast generally used for zinc-fortified foods is preferred.
[0014]
In the chlorophyll-containing food according to the present invention, the content of the zinc ion is preferably from 10 ppm to 1%, and particularly preferably from 100 ppm to 5000 ppm. Below this amount of zinc, the effect of preventing fading is weak, and above this amount of zinc, the amount used is high and sufficient safety for the human body cannot be obtained.
[0015]
Further, in the chlorophyll-containing food according to the present invention, the heat treatment is preferably performed at 80 to 150 ° C, particularly preferably at 100 to 120 ° C. Below this temperature, zinc cannot sufficiently act on chlorophyll, and above this temperature, the original flavor of chlorophyll is impaired. In the chlorophyll-containing food according to the present invention, the heat treatment is usually performed by UHT, a retort sterilizer, a joule heater, an autoclave, or the like. For certain foods, any method may be used.
[0016]
【Example】
Next, examples of the chlorophyll-containing food according to the present invention will be described.
Examples 1 to 4
After adding brewer's yeast (manufactured by Chemcoin Industries Inc.) having a zinc content of 10% to a solution of powdered green tea (manufactured by Aiya Co., Ltd.) in cold water at the ratios shown in Table 1, the solution was added using a retort sterilizer. Was sterilized at 121 ° C. for 20 minutes to obtain a matcha solution as a chlorophyll-containing food according to Examples 1 to 4.
[0017]
[Table 1]
Figure 2004201639
[0018]
In addition, powdered green tea (manufactured by Aiya Co., Ltd.) was dispersed in cold water at a ratio shown in Table 1 to obtain a green tea solution as a chlorophyll-containing food according to Comparative Example 1. Further, powdered green tea (manufactured by Aiya Co., Ltd.) was dispersed in cold water at the ratios shown in Table 1, and then this solution was sterilized at 121 ° C. for 20 minutes using a retort sterilizer, thereby containing the chlorophyll-containing powder according to Comparative Example 2. A powdered matcha solution was obtained.
[0019]
Next, each of the chlorophyll-containing foods according to Examples 1 to 4 and Comparative Examples 1 and 2 was diluted 5-fold, and the brightness index was measured using a color difference meter (ZE-2000, manufactured by Nippon Denshoku Industries Co., Ltd.). L) and the value of the chromaticness index (a, b) were measured. The value of L indicates a tendency to be bright when the value is large, and tends to be dark when the value is small, the value of a indicates red when the value is large, green when the value is small, and the value of b indicates yellow when the value is large and blue when the value is small. Show. Table 2 shows the measurement results.
[0020]
[Table 2]
Figure 2004201639
[0021]
As is clear from Table 2, in the value of a, which is an index of the tendency from green to red, the chlorophyll-containing food according to Comparative Example 2 is larger than the chlorophyll-containing food according to Comparative Example 1 by performing retort sterilization. It can be seen that the color has changed from green to red. In addition, the value of a of the chlorophyll-containing food according to Examples 1 to 4 is equal to or smaller than that of the chlorophyll-containing food according to Comparative Example 1, indicating that the chlorophyll-containing food has a strong green tendency. In particular, the chlorophyll-containing foods according to Examples 2 to 4 show smaller values than the chlorophyll-containing food according to Comparative Example 1, which indicates that the chlorophyll-containing food has a particularly strong green tendency.
[0022]
Next, the chlorophyll-containing foods according to Examples 1 to 4 and Comparative Example 1 were each exposed to light of 2,000 lux at 25 ° C. for 1 week, and each of them was diluted 5 times to a color difference meter (Nippon Denshoku Industries Co., Ltd.). L, a, and b values were measured using ZE-2000 (manufactured by Seiko Instruments Inc.). Table 3 shows the results.
[0023]
[Table 3]
Figure 2004201639
[0024]
As shown in Tables 2 and 3, at the value of a, which is an index from green to red, the chlorophyll-containing food according to Comparative Example 1 faded to about 30%, whereas Examples 1 to 4 It can be seen that such a chlorophyll-containing food only faded about 60%.
[0025]
Next, the pH was adjusted to 4, 6, or 8 using citric acid or sodium carbonate as shown in Table 4 in order to conduct a pH resistance experiment on the chlorophyll-containing foods according to Example 4 and Comparative Example 1. Specimens A, B, C, D, E and F were obtained by pasteurizing them at 85 ° C. for 30 minutes.
[0026]
[Table 4]
Figure 2004201639
[0027]
Next, each of these test articles A, B, C, D, E, and F was diluted 5-fold, and L, a, and b were measured using a color difference meter (ZE-2000, manufactured by Nippon Denshoku Industries Co., Ltd.). The value was measured. Table 5 shows the results.
[0028]
[Table 5]
Figure 2004201639
[0029]
As shown in Table 5, in the basic region, although the tendency toward red was observed, the specimens A, B, and C had a stronger green tendency than the specimens D, E, and F. That is, the chlorophyll-containing food according to Example 4 was It can be seen that the chlorophyll-containing food according to Comparative Example 1 is superior in pH resistance.
[0030]
Examples 5 to 8
150 ppm of brewer's yeast (manufactured by Chemcoin Industries, Inc.) having a zinc content of 10% was added to a solution of 1% matcha powder (manufactured by Aiyasha Co., Ltd.) in cold water, and then 60 ° C., 80 ° C., 100 ° C. By heating at 120 ° C. for 20 minutes, matcha solutions as chlorophyll-containing foods according to Examples 5 to 8 were obtained.
[0031]
Next, the chlorophyll-containing foods according to Examples 5 to 8 were diluted 5-fold, and the lightness index (L) and the chromaticness index (a) were measured using a dye meter (ZE-2000, manufactured by Nippon Denshoku Industries Co., Ltd.). , B) were measured. Table 6 shows the results.
[0032]
[Table 6]
Figure 2004201639
[0033]
As shown in Table 6, the chlorophyll-containing foods according to Examples 5 and 6 show relatively high values for the value of a, which is an index from green to red, indicating a strong red tendency. The chlorophyll-containing food according to Example 8, which was efficiently treated at a high temperature, had a slightly higher value than the chlorophyll-containing food according to Comparative Example 1, but showed an equivalent value, indicating a strong tendency toward green.
[0034]
Example 9
Next, the mixture shown in Table 7 was used to heat the hand-cooked bean paste, agar, sugar, salt, powdered matcha (manufactured by Aiya Co., Ltd.), beer yeast (manufactured by Chemcoin Industries Inc.) having a zinc content of 10%, and water. The mixture was kneaded and then cooled to obtain a matcha mizu yokan according to Example 9. In addition, what was obtained by removing the brewer's yeast from Example 9 was heated and kneaded with the composition shown in Table 7, and then cooled, to obtain Matcha Mizuyokan according to Comparative Example 2.
[0035]
[Table 7]
Figure 2004201639
[0036]
After filling the matcha water yokan according to Example 9 and Comparative Example 2 into a container, it was subjected to retort sterilization at 121 ° C. for 20 minutes, and the color change thereafter was compared. As a result, the matcha water yokan according to Comparative Example 2 had a distinctly faded green color, whereas the matcha water yokan according to Example 9 retained the original green tea green color.
[0037]
Example 10
Next, the mixture shown in Table 8 was used to heat and knead the hand-cooked bean paste, agar, sugar, powdered green tea (manufactured by Aiya Co., Ltd.), beer yeast (manufactured by Chemcoin Industries Inc.) having a zinc content of 10%, and water. Then, the mixture was cooled to obtain a matcha yokan according to Example 10. In addition, what was obtained by removing the brewer's yeast from Example 10 was heated and kneaded with the composition shown in Table 8, and then cooled to obtain a matcha yokan according to Comparative Example 3.
[0038]
[Table 8]
Figure 2004201639
[0039]
The green tea yokan according to Example 10 and Comparative Example 3 was filled in a container and cooled, and the color change thereafter was compared. As a result, the green tea yokan according to Comparative Example 3 had a distinctly faded green color, whereas the green tea yokan according to Example 10 retained the original green tea green color.
[0040]
Example 11
Next, 9 g of agar (manufactured by Ina Food Industry Co., Ltd., soft agar for nursing care) and 0.2 g of brewer's yeast (manufactured by Chemcoin Industries Inc.) having a zinc content of 10% were added to 1000 g of the sencha liquor extracted with hot water and heated and dissolved. After that, the resultant was packed in a container to obtain a tea jelly according to Example 11. Further, a tea jelly according to Comparative Example 4 was obtained by heating and dissolving the product obtained in Example 11 except for brewer's yeast, and then filling the container. The tea jelly according to Example 11 and Comparative Example 4 was subjected to retort sterilization (121 ° C. for 15 minutes), and the change in color after sterilization was compared. As a result, the tea jelly according to Comparative Example 4 had a clearly faded green color, whereas the tea jelly according to Example 11 retained the original green color of matcha, and thus was visually excellent. In addition, it is easy to eat for people with dysphagia, and the elderly can take in the zinc they need.
[0041]
Example 12
By adding 0.2 g of brewer's yeast (manufactured by Chemcoin Industries Inc.) having a zinc content of 10% to 1000 g of the sencha liquor extracted with hot water, performing UHT sterilization (130 ° C., 30 seconds), and aseptically putting the mixture in a PET bottle. A Japanese tea beverage according to Example 12 was obtained. Similarly, a Japanese tea beverage according to Comparative Example 5 was obtained on the condition that beer yeast was not added. When the colors of the Japanese tea beverages according to Example 12 and Comparative Example 5 were compared, the Japanese tea beverage according to Example 12 had no apparent fading and retained the color tone of the main body Japanese tea.
[0042]
【The invention's effect】
As described above, according to the present invention, by performing a heat treatment on a solution containing chlorophyll and zinc ions, it is possible to efficiently prevent chlorophyll discoloration in foods with a zinc content as small as possible. An included food can be provided.

Claims (3)

クロロフィルが含まれている食品と亜鉛イオンが含まれている溶液とを混合し、加熱処理することにより得られることを特徴とするクロロフィル含有食品。A chlorophyll-containing food, which is obtained by mixing a food containing chlorophyll with a solution containing zinc ions and subjecting the mixture to heat treatment. 前記亜鉛イオンの含有量が10ppmから1%であることを特徴とする請求項1記載のクロロフィル含有食品。The chlorophyll-containing food according to claim 1, wherein the content of the zinc ion is 10 ppm to 1%. 前記加熱処理は、80〜150℃で行われることを特徴とする請求項1又は2記載のクロロフィル含有食品。The chlorophyll-containing food according to claim 1, wherein the heat treatment is performed at 80 to 150 ° C. 4.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005102618A (en) * 2003-09-30 2005-04-21 S & B Foods Inc Green edible plant ingredient material, method for producing the same and sealed packaged food using the ingredient material
WO2008041517A1 (en) * 2006-10-03 2008-04-10 Kirin Beverage Company, Limited Container-packed green vegetable beverage
JP2008220226A (en) * 2007-03-10 2008-09-25 Sato Unso:Kk Method for producing powder tea
JP2008307008A (en) * 2007-06-15 2008-12-25 Toyohiko Sato Method for restoring plant to green or for keeping the plant green
JP2009165439A (en) * 2008-01-18 2009-07-30 Ito En Ltd Method for producing encased green vegetable juice beverage
WO2020027283A1 (en) * 2018-08-03 2020-02-06 サントリーホールディングス株式会社 Method for producing plant extract that contains chlorophyll
CN114766564A (en) * 2022-03-16 2022-07-22 统一企业(中国)投资有限公司昆山研究开发中心 Color protection method for beverage
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005102618A (en) * 2003-09-30 2005-04-21 S & B Foods Inc Green edible plant ingredient material, method for producing the same and sealed packaged food using the ingredient material
WO2008041517A1 (en) * 2006-10-03 2008-04-10 Kirin Beverage Company, Limited Container-packed green vegetable beverage
JP2008086269A (en) * 2006-10-03 2008-04-17 Kirin Beverage Corp Green vegetable packaged beverage
JP2008220226A (en) * 2007-03-10 2008-09-25 Sato Unso:Kk Method for producing powder tea
JP2008307008A (en) * 2007-06-15 2008-12-25 Toyohiko Sato Method for restoring plant to green or for keeping the plant green
JP2009165439A (en) * 2008-01-18 2009-07-30 Ito En Ltd Method for producing encased green vegetable juice beverage
JP4657308B2 (en) * 2008-01-18 2011-03-23 株式会社 伊藤園 Method for producing containerized green juice beverage
WO2020027283A1 (en) * 2018-08-03 2020-02-06 サントリーホールディングス株式会社 Method for producing plant extract that contains chlorophyll
EP3831214A4 (en) * 2018-08-03 2022-05-18 Suntory Holdings Limited Method for producing plant extract that contains chlorophyll
JP7355739B2 (en) 2018-08-03 2023-10-03 サントリーホールディングス株式会社 Method for producing plant extract containing chlorophyll
CN114766564A (en) * 2022-03-16 2022-07-22 统一企业(中国)投资有限公司昆山研究开发中心 Color protection method for beverage
CN115067461A (en) * 2022-06-17 2022-09-20 浙江古茗科技有限公司 Food coloring composition, preparation method of glutinous rice balls and glutinous rice balls

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