JP3795151B2 - Process for producing edible coated royal jelly powder - Google Patents

Process for producing edible coated royal jelly powder Download PDF

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JP3795151B2
JP3795151B2 JP26139096A JP26139096A JP3795151B2 JP 3795151 B2 JP3795151 B2 JP 3795151B2 JP 26139096 A JP26139096 A JP 26139096A JP 26139096 A JP26139096 A JP 26139096A JP 3795151 B2 JP3795151 B2 JP 3795151B2
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Prior art keywords
royal jelly
powder
oil
jelly powder
coated
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JPH1084888A (en
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幸也 小島
忠昭 早川
純 金枝
恵子 戸崎
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API Co Ltd
NOF Corp
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API Co Ltd
NOF Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、被覆ローヤルゼリー粉末の製造方法、それにより得られた該粉末及びそれを含む食品に関するものである。さらに詳しくいえば、本発明は、経時安定性に優れ、健康食品素材などとして有用な被覆ローヤルゼリー粉末を効率よく製造する方法、この方法により得られた経時安定性に優れる被覆ローヤルゼリー粉末、及びこの被覆ローヤルゼリー粉末を含有するローヤルゼリー食品に関するものである。
【0002】
【従来の技術】
ローヤルゼリーは古くから知られている栄養補助食品である。このローヤルゼリーは、王乳とも言われ、ミツバチの巣箱の王台に若い働き蜂の咽頭腺から分泌した乳白色の液体で、女王蜂の餌である。女王蜂は他の働き蜂の3倍も大きくなり、普通3年、時には5〜6年も生きるのに対し、働き蜂は活動期にわずかに1ケ月程度生きるに過ぎない。この差がローヤルゼリーを餌とするかしないかだけであることから、ローヤルゼリーの中には秘薬的効果をもつ成分が含まれていると考えられ、今日では強精強壮剤として世界中で食されている。
しかしながら、生ローヤルゼリーは熱に弱く、かつ紫外線や酸素に触れると、表面が短期間で変質するため凍結で保存しなければならず、さらに、生ローヤルゼリーは、きわめて粘稠なため、取扱いや加工が難しいなど保存、取扱い上の欠点を有している。そこで、この生ローヤルゼリーの保存安定性を改善するために、ローヤルゼリーを乾燥粉末化することが試みられているが、このローヤルゼリー粉末は、比表面積が大きいため空気や湿気にふれやすく、生ローヤルゼリー以上に安全性が低くなる。例えば吸湿性が強く流動性を保持できない、褐変しやすい、有効成分が経時的に減少するなど、多くの欠点を有している。
したがって、この粉末ローヤルゼリーを、さらにソフトカプセルやハードカプセルに封入したり(特開平4−36159号公報)。硬化油やワックスと混合して造粒後、種々の水溶性被膜材でコーティングして成る製剤などが開発されている(特開平2−152925号公報)。しかしながら、これらの製剤は、前記欠点が必ずしも十分に改善されているとはいえず、一般食品や健康食品などにはまだ利用しにくいという問題がある。
硬化油脂により被覆を形成させる従来の方法においては、溶融した硬化油脂にローヤルゼリー粉末を添加して均一に撹拌したのち、冷却、固化、粉砕処理が施される。このような方法では、ローヤルゼリー粉末が高温状態(60℃以上)に曝され、変質するのを免れない上、粉砕工程を含むため、粒径の揃った粉末状製品を得ることが困難であり、かりに得られたとしても、その表面にはローヤルゼリー原末が露出してしまい、被膜の効果を十分に発揮させることができないなどの問題が生じる。さらに、膜厚が不均一になる上、ローヤルゼリー含有量が60重量%以上の高含有率の被覆物を製造することは物理的に不可能であった。
一方、水溶性被膜材により被覆を形成させる方法は、水を使用する上、乾燥工程が必要であり、高温、高湿度の状態に曝されることになりローヤルゼリー粉末の安定性を考えると適した方法であるとはいえない。
また、これらの方法を組み合わせて得られた被覆物も見られるが、この場合、ローヤルゼリーの含有量はさらに低くなる上、製造工程数が増加し、コスト高になるのを免れず、有効成分を目的量添加するためには、このコスト高の製剤を多量に添加しなければならないなどの問題が生じる。
このように、従来の被覆ローヤルゼリー粉末では、その欠点を十分に改善することができておらず、ハードカプセル以外のソフトカプセルや打錠製剤への利用はもちろんのこと、ハードカプセルにおいても、その安定性を長期間にわたって保持することはできなかった。
【0003】
【発明が解決しようとする課題】
本発明は、このような事情のもとで、経時安定性に優れ、ローヤルゼリーの含有量が高く、かつ均質な被覆層を有する被覆ローヤルゼリー粉末を、有効成分の劣化を伴うことなく、効率よく製造する方法、この方法により得られた経時安定性に優れる被覆ローヤルゼリー粉末及びこれを含有するローヤルゼリー食品を提供することを目的としてなされたものである。
【0004】
【課題を解決するための手段】
本発明者らは、前記目的を達成するために鋭意研究を重ねた結果、特定の融点と粒子径を有する油脂系被覆材料粉末を、衝突平均荷重が特定の範囲になるような条件で、ローヤルゼリー粉末と、好ましくは20℃以下の冷却窒素ガス、炭酸ガスなどの冷却気体雰囲気下で混合撹拌することにより、ローヤルゼリー粒子の表面に、均質で薄い油脂系被覆層が形成された被覆ローヤルゼリー粉末が効率よく得られることを見出し、この知見に基づいて本発明を完成するに至った。
すなわち、本発明は、
(1)融点40℃以上及び平均粒子径0.1〜50μmの油脂系被覆材料粉末とローヤルゼリー粉末とを、周速0.1〜20m/秒の主軸撹拌羽根及び周速0.01〜10m/秒の副軸撹拌羽根を有する撹拌機によって混合撹拌することによって、ローヤルゼリー粒子の表面に、厚さ1〜10μmの融点40℃以上の均質な油脂系被覆層を有し、かつ平均粒子径が50〜300μmの粉末を得ることを特徴とする食用被覆ローヤルゼリー粉末の製造方法、
(2)油脂系被覆材料粉末とローヤルゼリー粉末との混合撹拌を温度20℃以下の冷却気体雰囲気下で行う上記第(1)項記載の食用被覆ローヤルゼリー粉末の製造方法、及び
(3)油脂系被覆層を構成する材料の含有量が300/R〜3000/R重量%[ただし、Rは被覆ローヤルゼリー粉末の平均粒子径(μm)を示す]である上記第(1)項記載の食用被覆ローヤルゼリー粉末の製造方法、
を提供するものである。
【0005】
【発明の実施の形態】
本発明において用いられるローヤルゼリー粉末としては、乾燥粉末品であればよく、その乾燥方法については特に制限されず、真空乾燥法、噴霧乾燥法、凍結乾燥法など、いずれの方法により乾燥処理されたものであってもよい。このローヤルゼリー粉末は、通常粒子径が10〜350μmの範囲にあり、かつ平均粒子径40〜280μm程度のものが用いられる。
一方、このローヤルゼリー粒子表面に、被覆層を形成させる油脂系被覆材料としては、融点40℃以上の人体に対して安全性の高いものが用いられる。融点が40℃未満のものでは、製品の被覆ローヤルゼリー粉末が、夏場などにおいて粒子同士が融着するなど、好ましくない事態を招来するおそれがある。この融点40℃以上の油脂系被覆材料としては、例えば牛脂、豚脂、魚油などの動物油、大豆油、菜種油、綿実油、コーン油、ヤシ油などの植物油、これらの動植物油の硬化油、ライスワックス、ミツロウ、カルナバロウ、キャンデリアなどのワックス類、脂肪酸金属塩、脂肪酸類、リン脂質類、糖脂質類、モノグリセリド類及びジグリセリド類などの中から選ばれた融点40℃以上のものが挙げられる。これらは単独で用いてもよいし、2種以上を組み合わせて用いてもよいが、これらの中で、特に植物性硬化油脂が好適である。
本発明においては、上記油脂系被覆材料粉末の平均粒子径は0.1〜50μmの範囲にあることが必要である。この平均粒子径が上記範囲を逸脱したものでは、所望の厚さを有する均質な被覆層が形成されにくいおそれがある。
本発明方法においては、前記ローヤルゼリー粉末と油脂系被覆材料粉末とを混合撹拌して、ローヤルゼリー粒子表面に、油脂系被覆層を形成させるが、この際ローヤルゼリー粉末と油脂系被覆材料粉末との衝突平均荷重が0.01〜10N(ニュートン)の範囲になるような撹拌条件で混合撹拌することが必要である。混合撹拌時の衝突平均荷重が上記範囲を逸脱すると所望の厚さを有する均質な被覆層が形成されにくく、本発明の目的が達せられない。なお、該衝突平均荷重は、以下に示す式により求めることができる。
【数1】

Figure 0003795151
ただし、Fは衝突平均荷重(ニュートン)、r1及びr2は、それぞれローヤルゼリー粒子と油脂系被覆材料粒子の平均半径(m)、m1及びm2は、それぞれローヤルゼリー粒子と油脂系被覆材料粒子の平均質量(kg)、Y1及びY2は、それぞれローヤルゼリー粒子と油脂系被覆材料粒子のヤング率(kg/m・sec2)、ν1及びν2は、それぞれローヤルゼリー粒子と油脂系被覆材料粒子のポアソン比、Vは衝突速度(m/sec)である。
このような衝突平均荷重の調整は、撹拌羽根の形式により異なるが、例えば主軸撹拌羽根の周速を0.1〜20m/秒程度、副軸撹拌羽根の周速を0.01〜10m/秒程度に調整するなどの方法により行うことができる。
また、ローヤルゼリー粉末と油脂系被覆材料との混合割合は、通常重量比40:60ないし99.0:1.0の範囲で選ばれる。好ましい混合割合は、被覆ローヤルゼリー粉末の平均粒子径により異なる。すなわち、該平均粒子径をRμmとするとき、油脂系被覆材料の添加量を被覆ローヤルゼリー総量の300/R〜3000/R重量%とすることが好ましい。混合撹拌時間は、撹拌条件により異なり、一概に定めることができないが、通常は30〜60分間程度で十分である。
さらに、この際、ローヤルゼリーの劣化を抑制するために、温度20℃以下の酸素を極力含まない冷却気体、例えば窒素ガス、炭酸ガスなどの雰囲気下で混合撹拌を行うのが好ましい。これにより、ローヤルゼリー粉末の温度を30℃以下に抑えることが可能であり、混合撹拌中の温度上昇によるローヤルゼリーの劣化及び吸湿による劣化を抑制することができる。
このようにして、ローヤルゼリー粒子表面に、厚さ1〜10μmの均質な油脂系被覆層を有する平均粒子径50〜300μmの本発明の被覆ローヤルゼリー粉末が効率よく得られる。
本発明の被覆ローヤルゼリー粉末においては、油脂系被覆材料の含有量は被覆ローヤルゼリー粉末の平均粒子径をRμmとした場合、300/R〜3000/R重量%の範囲にあるのが好ましい。本発明によれば、平均粒子径が50〜300μmの範囲で、99.0〜40重量%という高いローヤルゼリー含有量の被覆ローヤルゼリー粉末が得られる。本発明の被覆ローヤルゼリー粉末は、特にローヤルゼリーを60重量%以上の割合で含有するものが、ローヤルゼリーの単位当たりのコストや利用性などの面で好適である。
本発明の被覆ローヤルゼリー粉末は、例えば水やお湯に溶解させ、飲料として飲んでもよいし、粉末のまま直接食べてもよく、また、食品素材として加工食品に利用することもできる。
【0006】
【作用】
ローヤルゼリー粒子表面に、均質で薄い被覆層を形成させることにより、少量の硬化油脂などの被覆形成材料でも、吸湿による劣化、酸素による劣化、光による劣化などからローヤルゼリーの有効成分である10−ヒドロキシデセン酸などを保護することができ、しかもローヤルゼリー含有量の高い被覆物を得ることができる。
また、本発明の方法では、粉砕工程を含まないため、ローヤルゼリーが表面に露出することがなく、被覆効果を長期間にわたって維持することができる。さらには、低温、窒素雰囲気下での製造により、製造中のローヤルゼリーの劣化を防ぐことができ、保存安定性を大きく改善することができる。
【0007】
【実施例】
次に、本発明を実施例によりさらに詳細に説明するが、本発明は、これらの例によってなんら限定されるものではない。
なお、10−ヒドロキシデセン酸の安定性及び褐変防止効果は、下記の方法に従って評価した。
(1)10−ヒドロキシデセン酸(HDA)の安定性
温度40℃、湿度75%の条件下におけるHDAを溶剤(エタノール100%)抽出し、高速液体クロマトグラフにより測定して、経時的な残存率の推移を求め、評価した。
(2)褐変防止効果
温度40℃、湿度75%の条件下における粉末の白色度(色彩色差計L値)の経時変化を求め、褐変防止効果を評価した。
実施例1
平均粒子径100μmのローヤルゼリー粉末85重量部と平均粒子径10μmのナタネ硬化油(融点65℃)粉末15重量部とを、10℃に冷却した窒素を吹き込みながら、平均衝突荷重0.06Nにて高速撹拌処理を行った。なお、平均衝突荷重は、ローヤルゼリー粒子が壁面衝突したものとして計算した。約40分間撹拌混合して、平均粒子径120μmの被覆ローヤルゼリー粉末を得た。
なお、撹拌機として図1に示す形状のものを用い、主軸撹拌羽根1の周速5m/秒、副軸撹拌羽根2の周速1m/秒の条件で撹拌混合を行った。
得られた被覆ローヤルゼリー粉末の被覆層の厚さは電子顕微鏡写真により、粒子の断面から測定したところ、平均5μmであった。また、HDA残存率の経時変化を第1表に示す。
実施例2
実施例1において、ローヤルゼリー粉末及びナタネ硬化油粉末の使用量を、それぞれ60重量部及び40重量部に変更した以外は、実施例1と同様にして実施し、平均粒子径110μmの被覆ローヤルゼリー粉末を得た。
得られた被覆ローヤルゼリー粉末の被覆層の厚さは平均8μmであった。また、HDA残存率の経時変化を第1表に示す。
実施例3
実施例1により得られた被覆ローヤルゼリー粉末を、ゼラチンから成るハードカプセルに封入してハードカプセル封入品を得た。このカプセル封入品のHDA残存率の経時変化及び白色度の経時変化を第2表に示す。
実施例4
実施例2により得られた被覆ローヤルゼリー粉末をゼラチンから成るハードカプセルに封入してハードカプセル封入品を得た。このカプセル封入品のHDA残存率の経時変化及び白色度の経時変化を第2表に示す。
比較例1
実施例1において、平均衝突荷重を0.005Nに変更した以外は、実施例1と同様にして実施したが、ほとんど被覆されていなかった。
この被覆ローヤルゼリー粉末のHDA残存率の経時変化を第1表に示す。
比較例2
実施例1において、平均衝突荷重を12Nに変更した以外は、実施例1と同様にして実施したところ、製造機内への融着が起こり、良好な被覆物は得られなかった。
比較例3
80℃に加温して溶融させたナタネ硬化油15重量部に、ローヤルゼリー粉末85重量部を添加し、冷却、固化後、すべての粒子の径が300μm以下になるまでミキサーで粉砕処理し、被覆ローヤルゼリーを得た。このもののHDA残存率の経時変化を第1表に示す。
比較例4
実施例1で用いたローヤルゼリー粉末原末を、ゼラチンから成るハードカプセル内に直接封入してハードカプセル封入品を得た。
このカプセル封入品のHDA残存率の経時変化及び白色度の経時変化を第2表に示す。
【0008】
【表1】
Figure 0003795151
【0009】
【表2】
Figure 0003795151
【0010】
[注]白色度:色彩色差計でL値を求め、製造直後のL値を100とした場合の値である。
【0011】
【発明の効果】
本発明の被覆ローヤルゼリー粉末は、従来の被覆物に比べて極めて安定性が高く、従来応用ができなかった一般食品分野への展開が可能となり、また、ハードカプセルやソフトカプセル、打錠製剤などの製品形態を有する健康食品の分野においても、製品の品質保証期間を大幅に延長することができる。
【図面の簡単な説明】
【図1】図1は、実施例1、2及び比較例1、2において用いた撹拌機の形状を示す図である。
【符号の説明】
1 主軸撹拌羽根
2 副軸撹拌羽根[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a coated royal jelly powder, the powder obtained thereby, and a food containing the same. More specifically, the present invention relates to a method for efficiently producing a coated royal jelly powder having excellent temporal stability and useful as a health food material, etc., a coated royal jelly powder having excellent temporal stability obtained by this method, and this coating The present invention relates to a royal jelly food containing royal jelly powder.
[0002]
[Prior art]
Royal jelly is a nutritional supplement that has been known for a long time. This royal jelly, also called queen milk, is a milky-white liquid secreted from the pharyngeal gland of a young worker bee on the honey bee's hive, and feeds the queen bee. A queen bee is three times larger than other worker bees, usually three years, sometimes five to six years, whereas a worker bee lives only a month in the active period. Since this difference is only whether or not to feed royal jelly, it is considered that royal jelly contains ingredients with a secretive effect, and today it is eaten all over the world as a tonic and tonic. Yes.
However, raw royal jelly is vulnerable to heat, and when exposed to ultraviolet light or oxygen, the surface will be altered in a short period of time, so it must be stored frozen.In addition, raw royal jelly is extremely viscous and can be handled and processed. It has disadvantages in storage and handling such as difficulty. Therefore, in order to improve the storage stability of this raw royal jelly, attempts have been made to dry the royal jelly into a dry powder, but this royal jelly powder has a large specific surface area and is easily exposed to air and moisture. Safety is lowered. For example, it has many drawbacks such as strong hygroscopicity, inability to maintain fluidity, easy browning, and reduction of active ingredients over time.
Therefore, this powder royal jelly is further sealed in a soft capsule or a hard capsule (Japanese Patent Laid-Open No. 4-36159). A formulation prepared by mixing with hardened oil or wax and granulating and then coating with various water-soluble coating materials has been developed (Japanese Patent Laid-Open No. 2-152925). However, these preparations have the problem that the above-mentioned drawbacks are not necessarily improved sufficiently and are still difficult to use for general foods and health foods.
In the conventional method of forming a coating with hardened fats and oils, the royal jelly powder is added to the melted hardened fats and oils and stirred uniformly, followed by cooling, solidification and pulverization. In such a method, the royal jelly powder is exposed to a high temperature state (60 ° C. or higher), and it is inevitable to change the quality, and since it includes a pulverization step, it is difficult to obtain a powdery product having a uniform particle size, Even if it is obtained, the royal jelly bulk powder is exposed on the surface, and there arises a problem that the effect of the film cannot be fully exhibited. Furthermore, the film thickness is not uniform, and it is physically impossible to produce a high content coating having a royal jelly content of 60% by weight or more.
On the other hand, the method of forming a coating with a water-soluble coating material uses water and requires a drying step, which is suitable for considering the stability of royal jelly powder because it is exposed to high temperature and high humidity. It's not a method.
In addition, although a coating obtained by combining these methods is also seen, in this case, the content of royal jelly is further reduced, the number of manufacturing steps is increased, and it is inevitable that the cost is increased, and the active ingredient is not increased. In order to add the target amount, there arises a problem that a large amount of this expensive preparation must be added.
As described above, the conventional coated royal jelly powder has not sufficiently improved its drawbacks, and is not only used for soft capsules and tableting preparations other than hard capsules, but also has long stability in hard capsules. Could not be held for a period of time.
[0003]
[Problems to be solved by the invention]
Under such circumstances, the present invention efficiently produces coated royal jelly powder having excellent temporal stability, high royal jelly content, and having a homogeneous coating layer without causing deterioration of active ingredients. And a coated royal jelly powder having excellent temporal stability obtained by this method and a royal jelly food containing the same.
[0004]
[Means for Solving the Problems]
As a result of intensive research to achieve the above object, the inventors of the present invention have obtained a fat-based coating material powder having a specific melting point and particle diameter under the condition that the collision average load is in a specific range. The coated royal jelly powder in which a homogeneous and thin oil-based coating layer is formed on the surface of the royal jelly particles by mixing and stirring with the powder, preferably in a cooling gas atmosphere such as cooled nitrogen gas or carbon dioxide gas of 20 ° C. or less, is efficient. Based on this finding, the present invention has been completed.
That is, the present invention
(1) An oil-based coating material powder having a melting point of 40 ° C. or higher and an average particle size of 0.1 to 50 μm and a royal jelly powder are mixed with a main shaft stirring blade having a peripheral speed of 0.1 to 20 m / sec and a peripheral speed of 0.01 to 10 m / second. By mixing and stirring with a stirrer having a second axis stirring blade for 2 seconds, the surface of the royal jelly particles has a homogeneous oil-based coating layer having a melting point of 40 ° C. or higher with a thickness of 1 to 10 μm and an average particle diameter of 50 A method for producing an edible coated royal jelly powder characterized by obtaining a powder of ~ 300 μm,
(2) The method for producing an edible coated royal jelly powder according to (1) above, wherein the mixing and stirring of the oil-based coating material powder and the royal jelly powder is performed in a cooling gas atmosphere at a temperature of 20 ° C. or less, and (3) the oil-based coating Edible coated royal jelly powder according to (1) above, wherein the content of the material constituting the layer is 300 / R to 3000 / R wt% [wherein R represents the average particle size (μm) of the coated royal jelly powder] Manufacturing method,
Is to provide.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The royal jelly powder used in the present invention may be a dry powder product, and the drying method is not particularly limited, and is dried by any method such as a vacuum drying method, a spray drying method, or a freeze drying method. It may be. As this royal jelly powder, those having a particle diameter of usually 10 to 350 μm and an average particle diameter of 40 to 280 μm are used.
On the other hand, as the oil-based coating material for forming a coating layer on the surface of the royal jelly particles, a highly safe material for a human body having a melting point of 40 ° C. or higher is used. When the melting point is less than 40 ° C., the coated royal jelly powder of the product may lead to an unfavorable situation such as fusion of particles in summer. Examples of the oil-based coating material having a melting point of 40 ° C. or higher include animal oils such as beef tallow, pork tallow and fish oil, vegetable oils such as soybean oil, rapeseed oil, cottonseed oil, corn oil and coconut oil, hydrogenated oils of these animal and vegetable oils, rice waxes , Waxes such as beeswax, carnauba wax and canderia, fatty acid metal salts, fatty acids, phospholipids, glycolipids, monoglycerides, diglycerides and the like, those having a melting point of 40 ° C. or higher. These may be used singly or in combination of two or more. Among these, vegetable hardened fats and oils are particularly suitable.
In the present invention, the average particle size of the oil-based coating material powder needs to be in the range of 0.1 to 50 μm. If the average particle diameter deviates from the above range, it may be difficult to form a uniform coating layer having a desired thickness.
In the method of the present invention, the royal jelly powder and the oil-based coating material powder are mixed and stirred to form an oil-based coating layer on the surface of the royal jelly particles. At this time, the collision average of the royal jelly powder and the oil-based coating material powder It is necessary to mix and stir under stirring conditions such that the load is in the range of 0.01 to 10 N (Newton). If the collision average load at the time of mixing and stirring deviates from the above range, it is difficult to form a uniform coating layer having a desired thickness, and the object of the present invention cannot be achieved. The average collision load can be obtained from the following equation.
[Expression 1]
Figure 0003795151
Where F is the collision average load (Newton), r 1 and r 2 are the average radii (m) of the royal jelly particles and the oil-based coating material particles, and m 1 and m 2 are the royal jelly particles and the oil-based coating material particles, respectively. Mean mass (kg), Y 1 and Y 2 are the Young's modulus (kg / m · sec 2 ) of the royal jelly particles and the oil-based coating material particles, respectively, and ν 1 and ν 2 are the royal jelly particles and the oil-based coating material, respectively. The Poisson's ratio of particles, V, is the collision velocity (m / sec).
Such adjustment of the collision average load varies depending on the type of the stirring blade. For example, the peripheral speed of the main shaft stirring blade is about 0.1 to 20 m / second, and the peripheral speed of the auxiliary shaft stirring blade is 0.01 to 10 m / second. It can be performed by a method such as adjusting to a degree.
The mixing ratio of the royal jelly powder and the oil-based coating material is usually selected in the range of 40:60 to 99.0: 1.0 by weight. The preferred mixing ratio varies depending on the average particle size of the coated royal jelly powder. That is, when the average particle diameter is R μm, the amount of the oil-based coating material added is preferably 300 / R to 3000 / R wt% of the total amount of the coated royal jelly. The mixing and stirring time varies depending on the stirring conditions and cannot be determined in general, but usually about 30 to 60 minutes is sufficient.
Further, at this time, in order to suppress the deterioration of the royal jelly, it is preferable to carry out mixing and stirring in an atmosphere of a cooling gas containing as little oxygen as possible at a temperature of 20 ° C. or less, such as nitrogen gas or carbon dioxide gas. Thereby, the temperature of the royal jelly powder can be suppressed to 30 ° C. or less, and the deterioration of the royal jelly due to the temperature rise during mixing and stirring and the deterioration due to moisture absorption can be suppressed.
In this way, the coated royal jelly powder of the present invention having an average particle diameter of 50 to 300 μm having a homogeneous oil-based coating layer having a thickness of 1 to 10 μm on the surface of the royal jelly particles can be obtained efficiently.
In the coated royal jelly powder of the present invention, the content of the oil-based coating material is preferably in the range of 300 / R to 3000 / R wt% when the average particle size of the coated royal jelly powder is R μm. According to the present invention, a coated royal jelly powder having a high royal jelly content of 99.0 to 40% by weight with an average particle diameter in the range of 50 to 300 μm can be obtained. The coated royal jelly powder of the present invention preferably contains royal jelly in a proportion of 60% by weight or more in terms of cost per unit of the royal jelly and availability.
The coated royal jelly powder of the present invention may be dissolved, for example, in water or hot water, and may be drunk as a beverage, directly eaten as a powder, or used as a food material for processed foods.
[0006]
[Action]
By forming a uniform and thin coating layer on the surface of the royal jelly particles, 10-hydroxydecene, which is an active ingredient of royal jelly, can be used even with a small amount of coating material such as hardened fats and oils due to moisture absorption, oxygen degradation, and light degradation. An acid or the like can be protected, and a coating with a high royal jelly content can be obtained.
Moreover, in the method of this invention, since a grinding | pulverization process is not included, a royal jelly is not exposed to the surface and a coating effect can be maintained over a long period of time. Further, the production under low temperature and nitrogen atmosphere can prevent the deterioration of the royal jelly during the production, and the storage stability can be greatly improved.
[0007]
【Example】
EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples.
In addition, the stability and browning prevention effect of 10-hydroxydecenoic acid were evaluated according to the following methods.
(1) Stability of 10-hydroxydecenoic acid (HDA) HDA under the conditions of 40 ° C. and 75% humidity is extracted with a solvent (100% ethanol) and measured by high performance liquid chromatography to determine the residual rate over time. The change of was sought and evaluated.
(2) Browning prevention effect The change over time of the whiteness (color difference meter L value) of the powder under the conditions of a temperature of 40 ° C. and a humidity of 75% was determined, and the browning prevention effect was evaluated.
Example 1
High speed at an average collision load of 0.06 N while blowing nitrogen cooled to 10 ° C. with 85 parts by weight of royal jelly powder having an average particle size of 100 μm and 15 parts by weight of rapeseed oil (melting point 65 ° C.) having an average particle size of 10 μm. Stir processing was performed. The average collision load was calculated on the assumption that the royal jelly particles collided with the wall surface. The mixture was stirred and mixed for about 40 minutes to obtain a coated royal jelly powder having an average particle size of 120 μm.
In addition, the thing of the shape shown in FIG. 1 was used as a stirrer, and stirring mixing was performed on the conditions of the peripheral speed of the main axis | shaft stirring blade 1 of 5 m / second, and the peripheral speed of the auxiliary shaft stirring blade 2 of 1 m / second.
The thickness of the coating layer of the obtained coated royal jelly powder was 5 μm on average when measured from the cross section of the particle by an electron micrograph. Table 1 shows the change over time in the residual HDA rate.
Example 2
In Example 1, except that the usage amounts of the royal jelly powder and rapeseed hydrogenated oil powder were changed to 60 parts by weight and 40 parts by weight, respectively, the same procedure as in Example 1 was carried out to obtain a coated royal jelly powder having an average particle diameter of 110 μm. Obtained.
The average thickness of the coating layer of the obtained coated royal jelly powder was 8 μm. Table 1 shows the change over time in the residual HDA rate.
Example 3
The coated royal jelly powder obtained in Example 1 was encapsulated in a hard capsule made of gelatin to obtain a hard encapsulated product. Table 2 shows the time-dependent change in HDA residual rate and the time-dependent change in whiteness of this encapsulated product.
Example 4
The coated royal jelly powder obtained in Example 2 was encapsulated in a hard capsule made of gelatin to obtain a hard encapsulated product. Table 2 shows the time-dependent change in HDA residual rate and the time-dependent change in whiteness of this encapsulated product.
Comparative Example 1
In Example 1, except that the average collision load was changed to 0.005N, it was carried out in the same manner as in Example 1, but it was hardly covered.
Table 1 shows changes with time in the residual HDA ratio of the coated royal jelly powder.
Comparative Example 2
In Example 1, it carried out like Example 1 except having changed the average collision load into 12N, but the fusion | melting in a manufacturing machine occurred and the favorable coating was not obtained.
Comparative Example 3
Add 85 parts by weight of royal jelly powder to 15 parts by weight of rapeseed hydrogenated oil heated to 80 ° C., and after cooling and solidification, pulverize with a mixer until all particles have a diameter of 300 μm or less. Got royal jelly. Table 1 shows the change over time in the residual HDA ratio.
Comparative Example 4
The royal jelly powder bulk powder used in Example 1 was directly encapsulated in a hard capsule made of gelatin to obtain a hard encapsulated product.
Table 2 shows the time-dependent change in HDA residual rate and the time-dependent change in whiteness of this encapsulated product.
[0008]
[Table 1]
Figure 0003795151
[0009]
[Table 2]
Figure 0003795151
[0010]
[Note] Whiteness: A value obtained when the L value is obtained with a color difference meter and the L value immediately after production is 100.
[0011]
【The invention's effect】
The coated royal jelly powder of the present invention is extremely stable compared to conventional coatings, and can be developed in the field of general foods that could not be applied in the past. Also, product forms such as hard capsules, soft capsules, tableting formulations, etc. Even in the field of health foods having the above, the product quality assurance period can be greatly extended.
[Brief description of the drawings]
FIG. 1 is a diagram showing the shape of a stirrer used in Examples 1 and 2 and Comparative Examples 1 and 2. FIG.
[Explanation of symbols]
1 Main shaft stirring blade 2 Sub shaft stirring blade

Claims (3)

融点40℃以上及び平均粒子径0.1〜50μmの油脂系被覆材料粉末とローヤルゼリー粉末とを、周速0.1〜20m/秒の主軸撹拌羽根及び周速0.01〜10m/秒の副軸撹拌羽根を有する撹拌機によって混合撹拌することによって、ローヤルゼリー粒子の表面に、厚さ1〜10μmの融点40℃以上の均質な油脂系被覆層を有し、かつ平均粒子径が50〜300μmの粉末を得ることを特徴とする食用被覆ローヤルゼリー粉末の製造方法。  An oil-based coating material powder having a melting point of 40 ° C. or higher and an average particle diameter of 0.1 to 50 μm and a royal jelly powder are mixed with a main spindle stirring blade having a peripheral speed of 0.1 to 20 m / second and a secondary speed of 0.01 to 10 m / second. By mixing and stirring with a stirrer having a shaft stirring blade, the surface of the royal jelly particles has a homogeneous oil-based coating layer having a melting point of 40 ° C. or higher with a thickness of 1 to 10 μm and an average particle diameter of 50 to 300 μm. A method for producing an edible coated royal jelly powder characterized by obtaining a powder. 油脂系被覆材料粉末とローヤルゼリー粉末との混合撹拌を温度20℃以下の冷却気体雰囲気下で行う請求項1記載の食用被覆ローヤルゼリー粉末の製造方法。  The method for producing an edible coated royal jelly powder according to claim 1, wherein the mixing and stirring of the oil-based coating material powder and the royal jelly powder is performed in a cooling gas atmosphere at a temperature of 20 ° C or lower. 油脂系被覆層を構成する材料の含有量が300/R〜3000/R重量%[ただし、Rは被覆ローヤルゼリー粉末の平均粒子径(μm)を示す]である請求項1記載の食用被覆ローヤルゼリー粉末の製造方法。  The edible coated royal jelly powder according to claim 1, wherein the content of the material constituting the oil-based coating layer is 300 / R to 3000 / R wt% [wherein R represents an average particle diameter (μm) of the coated royal jelly powder]. Manufacturing method.
JP26139096A 1996-09-10 1996-09-10 Process for producing edible coated royal jelly powder Expired - Fee Related JP3795151B2 (en)

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