JP2005065629A - Tea tablet and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide tea tablets intended for improving productivity and product stability through including tea content as much as possible and solving impact damages such as capping and sticking, and having hardness enough to take with water and eat by chewing, and to provide a method for producing the tablets. <P>SOLUTION: This method for producing the tablets comprises mixing silicic anhydride with vegetable hardened oil or fish oil to make a mixture, mixing the mixture with tea powder, and forming the mixed mixture into tablets without addition of water and alcohols. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tea tablet to be taken orally as a pharmaceutical or a health food and a method for producing the tea tablet.

Tea has been ingested as a traditional Japanese drink since ancient times, but it is becoming a health maintenance rather than a luxury product. After green tea has been cultivated, various types of tea are produced by fermenting leaves separated from petioles and veins, or by fermenting a mixture thereof. However, it is common to extract and eat with hot water when drinking.
In recent years, active ingredients of tea have been energetically studied, and it has been reported that taking tea in addition to meals is more beneficial for health promotion. From this point of view, “tea” granules to be sprinkled over rice have been devised and marketed. However, since granulated tea is granulated using water or alcohol, it has the disadvantage that its taste and texture are inferior to the raw tea powder. Recently, various “tea ingredients + α ingredients” tablets have been devised, and their technical contents have been proposed and published (for example, for example) (See Patent Documents 1 to 4).

JP 2001-292702 A (Prior Art 1) Japanese Patent Laid-Open No. 11-139981 (Prior Art 2) JP 10-2210932 A (Prior Art 3) JP-A-8-298931 (prior art 4)

However, although the prior art 1 is a tablet formed by tableting a tea powder, the main invention is a method for powdering tea leaves, and the detailed description also states that “tablet formation of powder is a known tablet formation method. “It can be arbitrarily selected”.
Prior art 2 is described as “a method for producing a tablet in which oligosaccharide is mixed with tea leaf fine powder and matcha tea”, but it is an invention that draws out the medicinal effects of tea by adding oligosaccharide, and there is no specific description regarding tableting. Prior art 3 is “a method for producing a matcha tablet in which a sweetener is mixed with powdered green tea, a bulking agent for agar powder is further added, mixed and stirred, and then solid-molded into a tablet shape”. Is not specifically described. Prior art 4 is “a method for producing a powdered tea tablet in which powdered tea is pasted with water, dried after extrusion and dried to obtain a tablet”, and is an invention of a wet tablet.

  The major essential requirements when manufacturing tablets as commercial products are: (1) The powder for tablets is uniformly and smoothly filled into the die, and (2) Capping (tablet cracking of tablets) and sticking (to a bag) during compression molding. There should be no damages such as damage). In view of these, the prior art does not describe a tablet manufacturing method, manufacturing technique, etc., and cannot always manufacture a good tablet. That is, Prior Art 1 relates to tea leaf powdering technology and does not mention any tablet manufacturing method, and Prior Art 2 and 3 enhance the effect of tea-containing active ingredients by combining tea with other active ingredients. It is intended and not a tablet manufacturing technology. Therefore, the possibility of mass production using tablets as products is unknown. The tea powder is inferior to compression molding, and mass production becomes difficult if only the conventional tablet molding technology is used. Prior art 4 is based on a wet method, and since it undergoes a wet and dry process, it may be considered to exhibit defects such as inferior taste and texture compared to the raw tea powder, and there is concern over stability after production. But there is.

  The present invention solves the above-mentioned problems, and increases the tea content as much as possible to improve the productivity and stability of the product. Further, it is hard enough to be taken or chewed with water. It is an object of the present invention to provide a tea tablet having a thickness and a method for producing the same.

  In order to achieve the above object, the gist of the invention described in claim 1 resides in a tea tablet that is formed by tableting containing tea powder and silicic anhydride. A tea tablet according to a second aspect of the present invention is a tea tablet comprising a tea powder, silicic anhydride, and a vegetable hardened oil or fish oil, and is formed into a tablet. According to a third aspect of the present invention, there is provided a method for producing a tea tablet, comprising mixing silicic anhydride with vegetable hardened oil or fish oil to prepare a mixture, then mixing the mixture with tea powder, and then mixing the mixture. Is produced into a tablet without adding water or alcohols.

When tea powder and anhydrous silicic acid are contained as essential components as in the first aspect of the invention, obstacles such as capping and sticking during tableting do not occur, and productivity can be improved. In manufacturing a tea tablet, the moldability improvement effect can be obtained by adding silicic anhydride.
Furthermore, as described in claims 2 and 3, when tableting is carried out by containing tea powder, anhydrous silicic acid, vegetable hardened oil or fish oil as essential components, the tea powder can be obtained in a high content. The tablets have sufficient hardness, and handling problems such as capping and sticking are not seen at all. Tea tablets that are sufficiently chewy in the mouth when taken. The fluidity, filling and moldability of tea particles during tableting are also improved. As in claim 3, when a mixture is made by mixing vegetable hardened oil or fish oil with anhydrous silicic acid, and then mixing the mixture with tea powder, the mixture is then molded into a tablet. Dispersibility is enhanced by mixing silicic acid with vegetable hardened oil or fish oil, and the product can be stabilized. It is a so-called dry method in which water and alcohols are not added, and the disadvantages seen in the wet method, such as the taste and texture being inferior to the raw tea powder, are also eliminated.

Hereinafter, the tea tablet and the production method thereof according to the present invention will be described in detail. The present inventors added and mixed silicic acid silicic acid (fine particle silicon dioxide: name of food additive or light silicic acid: name of Japanese pharmacopoeia), which was uniformly dispersed with vegetable hardened oil in advance into tea powder, and molded. We succeeded in obtaining tablets with excellent properties. Silica anhydride has been conventionally used as a dispersion aid, but it has been found that tea powder has an effect of improving moldability.
Since tea powder is generally inferior in compression moldability, it is difficult to make tablets. It is said that the hardness of tablets is about 40N (approximately 4kg) or more when broken in the diameter direction (Masaki Hasegawa, Masayuki Noda, Akinobu Otsuka, “Study on compressibility of lactose-starch flat tablets”) Gaku, 41 , 146, 1981). In the case of tea tablets, it is conceivable to take them by chewing in addition to taking them with water like pharmaceutical tablets. Therefore, it is considered necessary to have a hardness that is crunchy in the mouth. Table 1 shows the relationship between tablet hardness, hardness and functionality. Sample tablets were made with a standard formula of lactose / starch system. In the hardness test, 10 tablets were put in a tablet friability tester (manufactured by Toyama Sangyo Co., Ltd.) and rotated for 4 minutes, and then the appearance of the tablets was observed. Regarding sensory properties, a tablet was included in the mouth and chewed with teeth to evaluate “chewing comfort”. As a result, the tablet showing a hardness of 44 N (approximately 4.4 kg) was good in both hardness and functionality.

  When making a tablet, it is common to uniformly mix the raw material powder in advance, granulate it, and then compress it. This is to reduce the weight deviation of the product and improve the moldability. As a means for granulating, there are a wet method and a dry method. The former is a method of kneading with water, etc., and reducing the size into granules of a certain size after drying, the latter is directly compressing or forming a flake by pressing with a roller compactor etc. and crushing this to granulate Is how to make. The former method is highly useful because high hardness can be obtained, but it is said to be unsuitable for foods that place importance on flavor and appearance because it undergoes a drying process. The latter is not affected by heat or moisture, so that tablets with good quality can be obtained. However, it is difficult to obtain high hardness, and therefore it is necessary to add excipients that exhibit good compression moldability with a small amount of addition. . The inventors of the present invention have conducted research with a target of tablets having a tea leaf powder content of 70% by weight (hereinafter simply referred to as “%”) or more. Accordingly, 7 parts by weight of tea leaf powder (hereinafter simply referred to as “parts”) was mixed with 3 parts of granulated sugar alcohol (5 types such as sorbitol) granules to obtain tablets. However, despite the compression molding at 200 MPa (2 tons), tablets with the desired hardness (40 N or more) were not obtained (Table 2). In view of the tableting machine, the load on the punch, and the tableting speed, it is usually desirable that compression is possible at 100 to 150 MPa (approximately 1 to 1.5 tons).

  Next, sorbitol granules that showed the highest hardness in Table 2 were used as excipients to examine the effectiveness of trace additives. The addition amount is 2%, the compression pressure is 200 MPa (approximately 2 tons), and the tablet diameter is 8.5 mm. The results are shown in Table 3. It has been found that silicic anhydride exhibits the desired hardness.

  The amount of silicic acid added and the moldability were examined, and the results are shown in Table 4. As a result, silicic acid anhydride showed an effect on moldability even when added in an amount of 0.5%.

  Silica was added to and mixed with the tea powder, and the mixed powder obtained by further mixing sorbitol granules produced separately was tableted using a rotary tableting machine (Collect 12HUK manufactured by Kikusui Seisakusho Co., Ltd.) (30 rpm, 1 tablet) Per weight: 200mg). As a result, the hardness was lower than that in small-scale molding, but the cause was judged to be non-uniform mixing due to mass penetration. Silicic anhydride is a fine powder having a particle size of 15 μm or less (practically 3 to 5 μm), and therefore usually has high cohesiveness. Therefore, it is necessary to increase dispersibility during mixing. Therefore, in order to improve the acidity, vegetable hardened oil or fish oil was added to and mixed with anhydrous silicic acid in advance and used for tableting. That is, a vegetable hardened oil or fish oil is mixed with silicic acid anhydride to prepare a mixture, and then the mixture and tea powder are mixed, and then the mixed mixture is formed into a tablet with a tableting machine. . As a result, the hardness was higher at a mixing ratio of 1: 1 or higher than when the mixture was not mixed (Table 5).

It was considered that silicic acid anhydride has strong cohesiveness and thus does not disperse even when mechanically mixed, and sufficient uniform mixing property cannot be obtained. As a result of intensive studies, it was found that dispersibility of silicic anhydride can be ensured by mixing vegetable hardened oil or fish oil with silicic anhydride. That is, it was found that by preparing a preformed powder in which both are mechanically dispersed in advance and adding this before tableting, uniform acidity can be easily obtained. The vegetable hardened oil is obtained by adding hydrogen to an unsaturated liquid vegetable oil to convert it into a solid fat. Some of these are made from cottonseed oil, soybean oil, etc., but as the vegetable hardened oil here, Laburi Wax-102H manufactured by Kawaken Fine Chemical was used. Fish oil is an oil collected from marine animals such as sardine oil and sesame oil, and many are obtained as fishmeal by-products. The fatty acid composition has many highly unsaturated polyunsaturated acids such as EPA and DPA which are useful for health promotion. In the present invention, fish oil is also used in the form of hydrogenated oil.
In the case of vegetable hardened oil, a desirable mixing ratio with silicic anhydride is 1 to 2 parts of vegetable hardened oil to 1 part of silicic anhydride. In addition, the vegetable hardened oil exhibits an effect as a lubricant at the time of tableting, and the moldability inhibition by mixing was not observed. The vegetable hardened oil is excellent in dispersibility improvement and more preferable than fish oil.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, of course, this invention is not limited to an Example. It is not restricted to what is shown in an Example, According to the objective and a use, it can change variously in the range of this invention.

  First, fine particle silicon dioxide (manufactured by Nippon Ayurosil) and vegetable hardened oil (Kawaken Fine Chemical) are mixed at a mixing ratio of 1: 2 to prepare 84 g of a mixture. Next, 1,400 g of tea leaf powder is taken, 84 g of the mixture is added, and 460 g of pre-granulated sorbitol granules are added and mixed. 56 g of the above vegetable hardened oil was uniformly mixed with the mixture thus obtained, and this was tableted under the conditions of a rotation speed of 40 rpm, a tablet weight of 200 mg, and a pressure of 12 MPa (1.2 tons f) (manufactured by Kikusui Co., Ltd.). Collect 12HUK). The obtained tablets were 9,600 tablets. No tableting trouble was observed during the test, and the obtained tablet had a hardness of 56 N (approximately 5.6 kg) and was also good in terms of sensuality. The sorbitol granule is obtained by adding CMC-Na and purified water to pulverized sorbitol, kneading, drying, and sizing to make a granule suitable for tableting.

  First, particulate silicon dioxide (manufactured by Nippon Aerosil Co., Ltd.) and vegetable hydrogenated oil (Kawaken Fine Chemical) are mixed at a mixing ratio of 1: 2 to prepare 42 g of a mixture. Next, 1,400 g of tea leaf powder is taken, 42 g of the mixture is added, and 502 g of pre-granulated sorbitol granules are added and mixed. 56 g of the above vegetable hardened oil was uniformly mixed with the mixture thus obtained, and tableted under the conditions of a rotation speed of 40 rpm, a tablet weight of 200 mg, and a pressing force of 100 MPa (approximately 1.0 ton f) (Kikusui Co., Ltd.). Mfg. Aqua 0513 type). 9,700 tablets were obtained. No tableting trouble was observed during the test, and the obtained tablet had a hardness of 51 N (approximately 5.1 kg) and was also good in terms of sensuality.

  First, particulate silicon dioxide (manufactured by Nippon Aerosil Co., Ltd.) and vegetable hydrogenated oil (Kawaken Fine Chemical) are mixed at a mixing ratio of 1: 2 to prepare 84 g of a mixture. Next, 1,400 g of tea leaf powder is taken, 84 g of the mixture is added, and 460 g of pre-granulated trehalose granules are added and mixed. 56 g of the above vegetable hardened oil was uniformly mixed with the mixture thus obtained, and tableted under the conditions of a rotation speed of 20 rpm, a tablet weight of 200 mg, and a pressing force of 120 MPa (approximately 1.2 tons f). No tableting trouble was observed during the process, and the obtained tablet had a hardness of 53 N (approximately 5.3 kg) and was also good in terms of sensuality. The trehalose granule is obtained by adding CMC-Na and purified water to trehalose, kneading, drying, and sizing to obtain a granule suitable for tableting.

  First, particulate silicon dioxide (manufactured by Nippon Aerosil Co., Ltd.) and vegetable hydrogenated oil (Kawaken Fine Chemical) are mixed at a mixing ratio of 1: 2 to prepare 84 g of a mixture. Next, 1,400 g of tea leaf powder is taken, 84 g of the mixture is added, and 460 g of pre-granulated mannitol granules are added and mixed. 56 g of the above vegetable hardened oil was uniformly mixed with the mixture thus obtained, and tableted under the conditions of 20 rpm, 200 mg tablet weight, and 120 MPa (1.2 tons f). No tableting trouble was observed during the process, and the obtained tablet had a hardness of 53 N (approximately 5.3 kg) and was also good in terms of sensuality. The mannitol granules are prepared by adding CMC-Na and purified water to pulverized mannitol, kneading, drying, and sizing to form granules suitable for tableting.

  First, particulate silicon dioxide (manufactured by Nippon Aerosil Co., Ltd.) and vegetable hardened oil (Kawaken Fine Chemical) are mixed at a mixing ratio of 1: 1 to prepare 112 g of a mixture. Next, 2,800 g of tea leaf powder is taken, 112 g of the mixture is added, and 920 g of pre-granulated sorbitol granules are added and mixed. 112 g of the above vegetable hardened oil was uniformly mixed with the mixture thus obtained, and tableted under the conditions of a rotation speed of 40 rpm, a tablet weight of 200 mg, and a pressure of 200 MPa (approximately 2.0 tons f). No tableting trouble was observed during the process, and the obtained tablet had a hardness of 58 N (approximately 5.8 kg) and was also good in terms of sensuality. The tablet yield was 18,000 tablets.

  In Example 1, a tablet was obtained in the same manner using maltitol instead of sorbitol granules. The obtained tablets were 10,600 tablets. No tableting trouble was observed during the test, and the obtained tablet had a hardness of 62 N (approximately 6.2 kg) and was also good in terms of sensuality.

  In Example 1, tablets were obtained in the same manner using powdered cellulose instead of sorbitol granules. The obtained tablets were 10,000 tablets. No tableting trouble was observed during the test, and the obtained tablet had a hardness of 62 N (approximately 6.2 kg) and was also good in terms of sensuality.

In Example 5, tablets were obtained in the same manner using amalty (manufactured by Towa Kasei, fine powder type) instead of sorbitol granules. The obtained tablets were 19,200 tablets.
No tablet was observed, and the tablet showed a hardness of 58 N (approximately 5.8 kg) and was also good in terms of sensuality.

  In any of the above Examples 1 to 8, tea tablets with a high tea content of 70% or more are useful for health promotion, and there are no obstacles such as capping and sticking during production, and productivity is improved. It was confirmed that the production method leads to the stability of

Claims (3)

A tea tablet comprising a tea powder and anhydrous silicic acid and formed into a tablet. A tea tablet comprising a tea powder, silicic anhydride, and vegetable hardened oil or fish oil. Mix the hardened vegetable oil or fish oil with silicic acid to make a mixture, then mix the mixture with tea powder, and then mix this mixture into tablets without adding water or alcohols. A method for producing a tea tablet, comprising molding.