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JP3910314B2 - Natural colorant - Google Patents
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JP3910314B2 - Natural colorant - Google Patents

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Publication number
JP3910314B2
JP3910314B2 JP20909599A JP20909599A JP3910314B2 JP 3910314 B2 JP3910314 B2 JP 3910314B2 JP 20909599 A JP20909599 A JP 20909599A JP 20909599 A JP20909599 A JP 20909599A JP 3910314 B2 JP3910314 B2 JP 3910314B2
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JP
Japan
Prior art keywords
tablet
cochineal
riboflavin
liquid
sugar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP20909599A
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Japanese (ja)
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JP2001031886A5 (en
JP2001031886A (en
Inventor
雄啓 中村
智 菅原
照代 室井
英信 安藤
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Eisai R&D Management Co Ltd
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Eisai R&D Management Co Ltd
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Publication of JP2001031886A5 publication Critical patent/JP2001031886A5/ja
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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B61/00Dyes of natural origin prepared from natural sources, e.g. vegetable sources
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033Blends of pigments; Mixtured crystals; Solid solutions

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Preparation (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、天然型着色剤に関するものであり、更に詳しくは天然型色素により錠剤等を橙黄色〜淡橙黄色に着色する着色剤及び着色方法に関する。
【0002】
【発明の背景及び従来技術】
錠剤、顆粒剤、散剤等は識別性を高める等の目的で、着色が施される場合がある。着色は、例えば錠剤の場合は、錠剤(裸錠)自体に色素等を混合したり、フィルムコートや糖衣層に色素等を混合して着色する場合等がある。
従来糖衣錠に着色する場合、着色剤は合成のタール系色素がよく使用されている。しかし、近年合成の医薬品添加物の人体に対する安全性が懸念され、天然色素が好まれるようになっている。天然色素としては、例えば黄色系では黄色三二酸化鉄、リボフラビン等が知られている。
【0003】
【発明が解決しようとする課題】
医薬品添加物として使用できる天然色素の種類は極めて限られているため、識別性、商品性を高めるための種々の色調を調整することは困難である。特に、橙色〜橙黄色は合成色素である黄色5号またはそのレーキ色素が用いられているが対応する天然色素はない。本発明者は、上記課題を解決すべく鋭意検討した結果、以下に示す手段により目的を達成できることを見出し本発明を完成した。
【0004】
【課題を解決するための手段】
本発明は、リボフラビンまたはその誘導体及びコチニールまたはコチニールレーキからなる着色剤である。また本発明は、リボフラビンまたはその誘導体及びコチニールまたはコチニールレーキを含有する橙黄色の着色剤である。さらに本発明は、本発明にかかる着色剤を用いて糖衣錠を着色した場合の色調が、分光式色差計により測定するとき明度(黒〜白)75〜85、色相(赤〜緑)5〜20、色相(黄〜青)23〜65である橙黄色の着色剤である。また、本発明は、リボフラビンまたはその誘導体及びコチニールまたはコチニールレーキを含有する着色剤を糖衣の色がけ液に溶解し、錠剤に被覆する糖衣錠の着色方法である。
これら着色剤に更に酸化チタンを加えることにより、色調が白色〜淡色を帯びた橙黄色の着色剤又は着色方法となる。
本発明はまた上記の色素を用いて着色した錠剤である。
【0005】
リボフラビンは、ビタミンB2とも呼ばれ融点292℃の黄褐色の結晶である。リボフラビン誘導体とは、フラビンモノヌクレオチド(FMN)、フラビンアデニンジヌクレオチド(FAD)、酪酸リボフラビン等を意味する。
【0006】
コチニールは、メキシコ、中央アメリカ、南アメリカに産するサボテン科の植物に寄生するエンジムシ(カイガラムシ科)の雌虫を乾燥した虫体又は粉末にした紅色無臭の動物染料である。コチニールの主成分はカルミン酸約10%、脂肪約10%、ロウ2%、水分4〜8%、灰分3〜6%を含む。コチニールの用途は、染料、水彩絵の具、アルカリ滴定用の指示薬、食用色素等である。また、コチニールレーキとは、カルミン酸を主成分とするコチニール色素から作られる赤色ないし紫色の顔料である。本発明におけるコチニールまたはコチニールレーキとは上記の他にカルミン酸又はカルミン酸レーキを含むものである。
酸化チタンとは分子式TiO2であり、白色顔料として医薬品、化粧品等に使用される。酸化チタンは日本薬局方品として容易に入手できる。
【0007】
本発明においては、リボフラビンまたはその誘導体及びコチニールまたはコチニールレーキを混合することにより橙黄色の着色剤を得ることができる。色を言葉で表現するのは困難であるが、本発明において橙黄色とは、黄色味がかった薄い橙色から、肌色に近い橙色を経て、薄い橙色がかった黄色までを意味する。リボフラビンまたはその誘導体及びコチニールまたはコチニールレーキに更に酸化チタンを配合すると、白味かかった橙黄色〜淡橙黄色になる。色を表すには色差計(カラーメーター)を用いると数値化できる。色差計は、色を明度(黒〜白)、色相(赤〜緑)及び色相(黄〜青)の3成分に別け、それぞれを数値化することにより色を表現するものである。この装置により本発明にかかる着色剤を用いて糖衣錠を製造し表面の色調を測定すると、明度(黒〜白)75〜85、色相(赤〜緑)5〜20、色相(黄〜青)23〜65である。色差計としては、例えば日本電色工業株式会社製、分光式色差計SZーΣ90等の機械を挙げることができる。
【0008】
本発明における、リボフラビンまたはその誘導体とコチニール又はコチニールレーキとの混合比は、リボフラビンまたはその誘導体1重量部に対して、コチニールまたはコチニールレーキ0.04〜0.7重量部である。更に酸化チタンを加える場合は、リボフラビンまたはその誘導体:コチニールまたはコチニールレーキ:酸化チタン=1:0.04〜0.7:0.4〜7(重量部)である。
本発明に係る着色剤は、糖衣錠の着色、フィルムコート錠の着色、顆粒・細粒・散剤の着色等に使用することができる。特に糖衣錠の色掛け液に混合して用いると美しい色調となる。糖衣錠の着色に使用する場合は、色がけ液5kg中に着色剤5〜50gを溶解・懸濁して使用できる。
【0009】
【効果】
本発明に係る着色剤の各成分は長年用いられてきた天然物由来の色素であるため極めて安全性が高い。また、得られる色調は従来の天然物系の色素では得られなかった橙黄色であり、錠剤等の識別更には服用性の向上等に効果を有する。
リボフラビン、コチニール及び酸化チタンを種々の割合で混合し、実施例で示す色掛け液5kg中に溶解し、糖衣錠を製造した場合の表面の色調を測定したときの明度(黒〜白:L*)、色相(赤〜緑:a*)及び色相(黄〜青:b*)の数値を次表に示す。測定機器は日本電色工業株式会社製の分光式色差計SZ−Σ90である。
【0010】
【表1】

Figure 0003910314
【0011】
【実施例】
以下に実施例を挙げて本発明を更に詳細に説明するが、本発明がこれらに限定されるわけではない。
【0012】
実施例1
工程1(防湿掛):錠剤コーティング装置(商品名:ハイコータ、フロイント社製HC60)に裸錠10kgを投入し給気温80℃の温風を送り錠剤を加温した。排気温度が60℃になったらハイコータを20rpmで回転させながら50℃に加温した「アンダーコート1液」を連続スプレーして錠剤を5mg増量させた。次いで室温の「アンダーコート2液」に切替え、連続スプレーして錠剤を3mg増量させた。ハイコータをゆっくり回転させ、錠剤を排気のみで冷却させタルクを少量振り掛けた。錠剤を室温まで冷却しハイコータから取出した。
【0013】
工程2(下掛):上記の防湿上り錠をハイコータに入れ、給気温65℃の温風を送り錠剤を加温した。排気温度が50℃になったら、ハイコータを20rpmで回転させ、送排風を一時止め(以下ポーズと略)シロップを100g手掛けした。1分後に送排風を入れ3分間乾燥させた。送気は65℃セットの給気で最後まで行った。ポーズで60℃に加温した「下掛け液」を200gスプレーした。ポーズ状態で1〜2分間ハイコータを回し、液を錠剤表面に均一になるまで伸ばし、生乾き状態になったところで送排風を入れ3分間乾燥させた。この下掛け液を掛ける操作はタイマーをセットし自動的に行った。2回目の下掛けは液量を300gスプレーした。3回目は350gの液をスプレーし、以後液量は最後まで毎回350gスプレーし、85mg増量した。約20回で作業が終了した。最後の乾燥が終了後、ハイコータの回転を落とし、排風のみで錠剤を冷却した。排気が室温になったら錠剤を取出した。
【0014】
工程3(上掛):色液は、白色の「キメ液」と着色の「イロ液」を順次掛けた。いずれの液も、67%シロップをホモミキサーで撹拌しながらそれぞれの成分を投入し、均一に分散させた。
【0015】
キメ掛
下掛上り錠をハイコーターに投入し、40℃にセットした給気で加温し、排気温度が35℃以上になったら室温の「キメ液」をポーズ状態で130gスプレーした。ポーズ2分間後、2分間乾燥する。この操作を自動で繰り返し行い、27mg増量させた。約20回で終了した。
【0016】
イロ掛
給気を35℃にセットし、室温の「イロ液」をポーズ状態でキメ上り錠剤に1回当たり100gスプレーした。ポーズ2分間後、2分間乾燥した。29mg増量するが、途中で終了5回前で排気のみで3分間錠剤を冷却し、液量を4回前からは、80gにしてスプレーし、2分間のポーズ後3分間冷却して錠剤肌をきれいにした。これを3回行った。最後の1回は、60gをスプレーし、2分間回転後、ハイコーターを止めて2分間ハイコーターを寸動させた後錠剤を取出した。取出した錠剤は、棚乾燥機のバットに入れて保管した。
【0017】
工程4(艶出):あらかじめ棚乾燥機で、40℃1時間程度加温した色上り錠剤半分量を銅ベッセルに入れ、回転させながら「シェラック液」60mlを20、10、10、10、10mlに分割し各々2分間隔で掛けた。
その後、C液40mlを10、6、6、6、6、6mlに分割し、3分間隔で掛けた。最後の1回を掛けた後ベッセルに蓋をして15分間回し、蓋を開けて5分間回した後錠剤を取出した。
【0018】
「アンダーコート1液」「アンダーコート2液」「下掛け液」「キメ液」「イロ液」「シェラック液」の組成を次表に示した。
【0019】
【表2】
Figure 0003910314
[0001]
[Industrial application fields]
The present invention relates to a natural colorant, and more particularly to a colorant and a coloring method for coloring a tablet or the like from orange to light orange with a natural pigment.
[0002]
BACKGROUND OF THE INVENTION AND PRIOR ART
Tablets, granules, powders, and the like may be colored for the purpose of enhancing discrimination. For example, in the case of a tablet, coloring may be mixed with the tablet (bare tablet) itself, or coloring may be performed by mixing the film coating or sugar coating layer with a coloring agent.
Conventionally, when a sugar-coated tablet is colored, a synthetic tar dye is often used as a colorant. However, in recent years, there are concerns about the safety of synthetic pharmaceutical additives to the human body, and natural pigments have been favored. As natural pigments, for example, yellow iron sesquioxide, riboflavin, and the like are known for yellow pigments.
[0003]
[Problems to be solved by the invention]
Since the types of natural pigments that can be used as a pharmaceutical additive are extremely limited, it is difficult to adjust various color tones for enhancing discrimination and merchantability. In particular, for orange to orange yellow, yellow No. 5 which is a synthetic dye or its lake dye is used, but there is no corresponding natural dye. As a result of intensive studies to solve the above problems, the present inventor has found that the object can be achieved by the following means, and has completed the present invention.
[0004]
[Means for Solving the Problems]
The present invention is a colorant comprising riboflavin or a derivative thereof and cochineal or cochineal lake. The present invention also provides an orange-yellow colorant containing riboflavin or a derivative thereof and cochineal or cochineal lake. Furthermore, the present invention provides a color tone (colored from black to white) of 75 to 85 and a hue (red to green) of 5 to 20 when the sugar-coated tablet is colored using the colorant according to the present invention, as measured by a spectroscopic color difference meter. , An orange-yellow colorant having a hue (yellow to blue) of 23 to 65. In addition, the present invention is a method for coloring a sugar-coated tablet in which a colorant containing riboflavin or a derivative thereof and cochineal or cochineal lake is dissolved in a sugar-coating color solution and coated on the tablet.
By adding titanium oxide to these colorants, it becomes an orange-yellow colorant or coloring method having a white to light color tone.
The present invention is also a tablet colored with the above-mentioned pigment.
[0005]
Riboflavin is also called vitamin B2 and is a tan crystal having a melting point of 292 ° C. The riboflavin derivative means flavin mononucleotide (FMN), flavin adenine dinucleotide (FAD), riboflavin butyrate and the like.
[0006]
Cochineal is a red, odorless animal dye made from dried insects or powders of female insects of the cactiaceae (Coleoptera) parasitic on cactiaceae plants in Mexico, Central America and South America. The main components of cochineal contain about 10% carminic acid, about 10% fat, 2% wax, 4-8% moisture and 3-6% ash. The uses of cochineal are dyes, watercolors, indicators for alkali titration, food colors, and the like. The cochineal lake is a red or purple pigment made from a cochineal dye mainly composed of carminic acid. The cochineal or cochineal lake in the present invention includes carminic acid or carminic acid lake in addition to the above.
Titanium oxide has a molecular formula of TiO2, and is used as a white pigment in pharmaceuticals, cosmetics and the like. Titanium oxide is readily available as a Japanese pharmacopoeia product.
[0007]
In the present invention, an orange-yellow colorant can be obtained by mixing riboflavin or a derivative thereof and cochineal or cochineal lake. Although it is difficult to express a color in words, in the present invention, orange-yellow means from a light orange with a yellowish taste to an orange with a flesh-colored orange to a light orangeish yellow. When titanium oxide is further added to riboflavin or a derivative thereof and cochineal or cochineal lake, it turns white orange to light orange yellow. A color difference meter (color meter) can be used to express colors. The color difference meter expresses a color by dividing the color into three components of lightness (black to white), hue (red to green), and hue (yellow to blue), and quantifying each. With this apparatus, a sugar-coated tablet is produced using the colorant according to the present invention, and the color tone of the surface is measured. ~ 65. Examples of the color difference meter include a machine such as a spectroscopic color difference meter SZ-Σ90 manufactured by Nippon Denshoku Industries Co., Ltd.
[0008]
In the present invention, the mixing ratio of riboflavin or a derivative thereof to cochineal or cochineal lake is 0.04 to 0.7 parts by weight of cochineal or cochineal lake to 1 part by weight of riboflavin or a derivative thereof. When titanium oxide is further added, riboflavin or a derivative thereof: cochineal or cochineal lake: titanium oxide = 1: 0.04 to 0.7: 0.4 to 7 (parts by weight).
The colorant according to the present invention can be used for coloring sugar-coated tablets, coloring film-coated tablets, coloring granules, fine granules, and powders. In particular, a beautiful color tone is obtained when used in a color coating solution of a sugar-coated tablet. When used for coloring sugar-coated tablets, 5 to 50 g of a colorant can be dissolved and suspended in 5 kg of the color rinsing solution.
[0009]
【effect】
Since each component of the colorant according to the present invention is a pigment derived from a natural product that has been used for many years, it is extremely safe. Further, the obtained color tone is orange-yellow, which was not obtained with conventional natural product-based pigments, and is effective for identifying tablets and improving taking ability.
Riboflavin, cochineal, and titanium oxide are mixed in various proportions, dissolved in 5 kg of the color coating solution shown in the examples, and lightness when the color tone of the surface when a sugar-coated tablet is produced (black to white: L *) The numerical values of hue (red to green: a *) and hue (yellow to blue: b *) are shown in the following table. The measuring instrument is a spectroscopic color difference meter SZ-Σ90 manufactured by Nippon Denshoku Industries Co., Ltd.
[0010]
[Table 1]
Figure 0003910314
[0011]
【Example】
The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
[0012]
Example 1
Step 1 (moisture-proof coat): 10 kg of bare tablets were put into a tablet coating apparatus (trade name: HC60 manufactured by Freund Corporation), warm air at a supply temperature of 80 ° C. was sent to heat the tablets. When the exhaust temperature reached 60 ° C., the tablet was increased by 5 mg by continuously spraying “undercoat 1 liquid” heated to 50 ° C. while rotating the high coater at 20 rpm. Subsequently, it switched to “undercoat 2 liquid” at room temperature and continuously sprayed to increase the tablet by 3 mg. The high coater was rotated slowly, the tablets were cooled only by exhaust, and a small amount of talc was sprinkled. The tablets were cooled to room temperature and removed from the high coater.
[0013]
Step 2 (underlay): The above moisture-proof uplock was placed in a high coater, and warm air with a supply temperature of 65 ° C. was sent to heat the tablet. When the exhaust temperature reached 50 ° C., the high coater was rotated at 20 rpm, and the air supply / exhaust was temporarily stopped (hereinafter abbreviated as pause) and 100 g of syrup was handled. After 1 minute, air was sent and exhausted and dried for 3 minutes. Air supply was performed to the end with a supply of 65 ° C. 200 g of “underlay liquid” heated to 60 ° C. in a pause was sprayed. The high coater was rotated for 1 to 2 minutes in a paused state, and the liquid was evenly spread on the surface of the tablet. When it was in a dry state, air was exhausted and dried for 3 minutes. The operation of pouring the undercoat liquid was automatically performed by setting a timer. The second undercoat was sprayed with 300 g of liquid. The third time was sprayed with 350 g of liquid, and thereafter the liquid volume was sprayed with 350 g each time until the end, and the amount was increased by 85 mg. The work was completed in about 20 times. After the final drying was completed, the high coater was turned off and the tablets were cooled only with exhaust air. When the exhaust was at room temperature, the tablets were removed.
[0014]
Step 3 (upper part): The color liquid was sequentially applied with a white “texture liquid” and a colored “iro liquid”. In each solution, 67% syrup was stirred with a homomixer and the respective components were added and dispersed uniformly.
[0015]
The textured hanging lock was put into a high coater and heated with the air supply set at 40 ° C. When the exhaust temperature reached 35 ° C. or higher, 130 g of room temperature “texture liquid” was sprayed in a paused state. After 2 minutes of pose, dry for 2 minutes. This operation was automatically repeated to increase the dose by 27 mg. It was completed in about 20 times.
[0016]
The air supply air supply was set at 35 ° C., and 100 g of “Iro liquid” at room temperature was sprayed onto the textured tablets in a paused state. After 2 minutes of posing, it was dried for 2 minutes. Increase the dose by 29 mg, cool the tablet for 3 minutes by evacuating only 5 times before the end, spray the liquid volume to 80 g from the previous 4 times, cool for 3 minutes after a pause of 2 minutes, and remove the tablet skin I cleaned it. This was done three times. At the last time, 60 g was sprayed, rotated for 2 minutes, stopped the high coater, moved the high coater for 2 minutes, and then removed the tablets. The extracted tablets were stored in a vat of a shelf dryer.
[0017]
Step 4 (Glossing): Half amount of color rising tablet preheated for about 1 hour at 40 ° C. with a shelf dryer is placed in a copper vessel, and while rotating, 60 ml of “shellac liquid” is 20, 10, 10, 10, 10 ml. Divided by 2 minutes each.
Thereafter, 40 ml of solution C was divided into 10, 6, 6, 6, 6, 6 ml and applied at intervals of 3 minutes. After the last time, the vessel was capped and rotated for 15 minutes, the lid was opened and rotated for 5 minutes, and then the tablet was taken out.
[0018]
The composition of “undercoat 1 liquid”, “undercoat 2 liquid”, “undercoat liquid”, “texture liquid”, “iron liquid” and “shellac liquid” is shown in the following table.
[0019]
[Table 2]
Figure 0003910314

Claims (8)

(1)リボフラビンまたはその誘導体と、
(2)コチニールまたはコチニールレーキと、を含み、
前記(1)と(2)を、1:0.04〜0.7重量部の割合で含む医薬錠剤用着色剤。
(1) riboflavin or a derivative thereof;
(2) including cochineal or cochineal rake,
A coloring agent for a pharmaceutical tablet comprising (1) and (2) in a ratio of 1: 0.04 to 0.7 parts by weight.
酸化チタンをさらに含む請求項1に記載の着色剤。  The colorant according to claim 1, further comprising titanium oxide. リボフラビン誘導体が、フラビンモノヌクレオチド、酪酸リボフラビンまたはフラビンアデニンジヌクレオチドである請求項1または2に記載の着色剤。  The coloring agent according to claim 1 or 2, wherein the riboflavin derivative is flavin mononucleotide, riboflavin butyrate or flavin adenine dinucleotide. 前記錠剤が、糖衣錠である請求項1ないし3の何れか一項に記載の着色剤。  The colorant according to any one of claims 1 to 3, wherein the tablet is a sugar-coated tablet. 請求項1〜4の何れか一項に記載の着色剤で着色した錠剤。  The tablet colored with the coloring agent as described in any one of Claims 1-4. 前記錠剤が、糖衣錠である請求項5に記載の錠剤。  The tablet according to claim 5, wherein the tablet is a sugar-coated tablet. 請求項1〜4の何れか一項に記載の着色剤で着色する工程を含む錠剤の製造方法。  The manufacturing method of the tablet including the process colored with the coloring agent as described in any one of Claims 1-4. 前記錠剤が、糖衣錠である請求項7に記載の製造方法。  The manufacturing method according to claim 7, wherein the tablet is a sugar-coated tablet.
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