JPH04149134A - Separation of bitter component in aloe extract - Google Patents

Abstract

PURPOSE:To obtain an aloe extract completely free from bitter taste inherent therein, usable as a mild health food, etc., by treating a cleared aloe extract with activated carbon to effect adsorption of the bitter components in said extract on the activated carbon. CONSTITUTION:A cleared aloe extract [for example, obtained by the following process: a pectinase-contg. enzyme is added to a crude aloe extract followed by clearing treatment (0.01-0.5wt.% of the enzyme is added and treated at normal temperatures to 80 deg.C)] is mixed with 5-50wt.%, based on the aloe extract, of activated carbon followed by treatment for 1-15hr at 5-50 deg.C under agitation, thereby effecting adsorption of the bitter components in said extract on the activated carbon. The activated carbon is then removed by filtration, thus obtaining the objective clear aloe extract completely free from bitter taste. The bitter components adsorbed on the activated carbon are extracted with a hydrophilic solvent, which is then distilled off, thus recovering said components which can be used for laxatives, imparting foods with bitter taste, etc.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for industrially adsorbing and separating bitter components from an aloe extract containing bitter components. An aloe extract containing aloe vera (aloe and baroin) that adsorbs and separates bitter components using cara activated carbon, and can be widely used as a mild health food product with no bitter component or bitterness, or as an additive in cosmetics, toothpaste, soap, etc. Relating to a manufacturing method.

[Conventional technology and its problems]

Conventionally, there has been no known method for separating bitter components from aloe extract (aloe gel), which contains bitterness.

When using large foreign aloe vera for health foods, etc., only the bitter epidermis of the plant (aloe vera) is directly peeled off and separated, and the remaining part is removed (crushed) and used as aloe gel. There was no other way to process it other than to use it for various purposes.

On the other hand, Kidachi Aloe, which is widely cultivated in Japan, has been known for its medicinal properties since ancient times as a stomachic, laxative, and burn medicine. The uses and amounts added were quite limited. This is because Kidachi Aloe is small, so it is difficult to industrially peel off and separate only the bitter epidermis, which is the case with large foreign Aloe, and it is difficult to extract and separate only the bitter skin part of Aloe without bitterness.
The reason lies in the inability to manufacture.

It is also possible to treat bitter aloe extract (aloe gel) with an adsorbent to remove the bitter components, but the extracted extract, which is obtained by crushing aloe and removing the crude fiber, is still cloudy. and contains a strong gel-like substance. Therefore, during the transparency process, 20
It cannot be filtered even with a filter cloth with a mesh size of about 0, and even if a filter aid is added, filtration is still difficult. In addition, it was difficult to treat it with an adsorbent if it remained as it was.

Therefore, if you want to produce aloe extract without bitterness (for example, without aloin or barbaloin) industrially, you will have to rely on expensive different types of aloe gels, such as aloe vera, soap aloe, etc., which are processed overseas. However, there was an economic disadvantage.

[Problem of invention]

The object of the present invention is to easily separate bitter components from an aloe extract containing bitter components, and to provide an industrially inexpensive aloe extract from which the bitter components in aloe and bitterness have been removed. .

[Failure to solve the problem]

The present inventors removed the T-mouthed aloe extract under pressure or under reduced pressure, especially when the concentration of the aloe extract was Br1.
By adding activated carbon to the transparent aloe extract obtained by adding water and filtering it so that the temperature is below 30°, especially below about 20°, the bitter components contained in the aloe are adsorbed. It has been found that the bitter components adsorbed on the activated carbon can be easily separated by filtration.

Furthermore, a transparent aloe extract can be obtained by adding pectinase-containing enzyme to the aloe extract from which the aloe has been removed and enzymatically treating it, and by adding activated carbon to this transparent aloe extract and treating it, Activated carbon can adsorb bitter components contained in
Furthermore, the inventors discovered that the activated carbon can be easily filtered and that the bitter components adsorbed on the activated carbon can be easily extracted and recovered using a hydrophilic solvent, leading to the present invention.

Therefore, the present invention provides an improved method for producing an aloe extract that is completely free of the bitter components of aloe and bitterness at low cost and with good reproducibility by a method that has not been previously known.

That is, the present invention provides: 1. A bitter component of aloe characterized by adding activated carbon to a clarified aloe extract and separating the bitter component in the aloe extract by adsorbing it to the activated carbon. How to manufacture.

2. After adding a pectinase-containing enzyme to the taken aloe extract and making it transparent, activated carbon is further added, and the bitter components in the aloe extract are adsorbed to the activated carbon and separated. How to make aloe extract without any.

It is.

The present invention will be explained in detail below.

According to the present invention, not only the aloe extract containing the bitterness Jii obtained by removing the Aloe aloe grown in Japan but also the remainder obtained by peeling and separating the epidermis containing the bitterness components produced in foreign countries. Remove the bitter components remaining in the aloe gel obtained by removing the extract, or efficiently remove the bitter components present in the removed aloe extract without peeling off the epidermal components containing the bitter component. By doing so, an aloe extract completely free of bitter components and bitterness can be produced.

As the activated carbon used in the present invention, not only special activated carbons such as bone charcoal and animal charcoal, but also ordinary activated carbons such as Mitsubishi Kasei activated carbon and Nimura Kagaku Daikaku activated carbon can be used.

The amount of activated carbon to be added can be any amount within the range of 5 to 50% by weight of the aloe extract.

As the pectinase-containing enzyme used when enzymatically treating aloe gel, any commercially available enzyme can be used.
The amount added is within the range of 0.01% by weight to 0.5% by weight.

Enzyme treatment is performed at a temperature within the range of room temperature to 80°C.

The concentration of aloe extract during activated carbon treatment is Br1
A concentration of x30° or less is preferred. If it is thicker than this, it may be difficult to filter when removing activated carbon.
Additionally, there is a drawback that yield loss occurs. It is particularly preferable to process at a concentration of Br1x20'' or less.

The activated carbon treatment is preferably carried out at a temperature in the range of 5 to 50°C and under stirring conditions for 1 to 15 hours.

Activated carbon-treated aloe extract is made transparent and free of bitterness by removing the activated carbon by vacuum filtration or pressure filtration with the addition of a filter aid made of diatomaceous earth such as radiolite or thorite at room temperature. No aloe extract can be produced.

On the other hand, the bitter components adsorbed on activated carbon can be recovered by extracting them using a hydrophilic solvent such as methyl alcohol, ethyl alcohol, etc., and distilling off these solvents.

Next, examples of the present invention will be described.

Example 1 100g of transparent Kidachialoes (Brix 20°) obtained by vacuum filtration of Kidachialoe extract and 80g of water.
and 20 g of activated carbon (two-phase chemistry) under stirring conditions.
The reaction was carried out at 0 to 45°C for 15 hours.

After the reaction was completed, 10 g of Radiolite (Showa Kagaku) was added as a filter aid and filtered by suction according to a conventional method to obtain 160 g of transparent aloe extract (Brixll, 5°).

This aloe extract had its bitter taste completely removed. The yield of the active ingredient in this case was 61%.

In addition, the activated carbon that has adsorbed bitter components is washed with water, most of the water is removed, and extracted using 95% ethyl alcohol 150 rd in 3 times, the ethyl alcohol is distilled off, and the bitter components 1. 8 g (Brixl 7°) were obtained.

Example 2 35 g of water and 10 g of activated carbon (Mitsubishi Kasei) were added to 40 g of transparent Kidachi Aloe extract (Br1 x 20°) obtained by pressure filtration of Kidachi Aloe extract, and the mixture was stirred for 40 minutes under stirring conditions.
The reaction was carried out at ~45°C for 3 hours.

After the reaction is complete, add 4g of Radiolite (Showa Kagaku) and filter under pressure to obtain a clear aloe extract 70 with no bitterness.
g (Brixl 1.8°) was obtained.

The yield of the active ingredient in this case was 69%.

On the other hand, the activated carbon content is 98% methyl alcohol 1, OOd
After extraction was carried out three times, methyl alcohol was distilled off to obtain about 1 g of bitter component (Brix 14°).

Example 3 Unloaded Kidachialoe extract ([1rix30°) 10
Add 90 g of water to 0 g, and add pectinase-containing enzyme (
After adding 0.3 g of Macerome (product name: manufactured by Yakult Honsha Co., Ltd.) and reacting at 40 to 50°C for 5 hours,
0 g was added and filtered under pressure to obtain a transparent Kidachialoe extract (Brix 16°).

Aloe extract treated with pectinase could be easily filtered.

Activated carbon (two-phase chemistry) 40% to the obtained Kidachi aloe extract
g was added thereto, and the mixture was reacted at 40 to 45° C. for 5 hours while stirring.

After the reaction is complete, add 15 g of Radiolite as a filter aid and filter with suction using a conventional method to obtain a transparent aloe extract of 178 g.
g (Brixl 2.8°) was obtained.

The resulting aloe extract had its bitter taste completely removed.

In addition, after washing the activated carbon adsorbing bitter components with water and removing most of the moisture, the activated carbon was extracted three times using 95% ethyl alcohol 200%, and the ethyl alcohol was distilled off to remove the bitter components. .7 g (Brixl 8°) was obtained.

In Example 3, pectinase-containing enzyme treatment and activated carbon treatment were performed simultaneously, but similar results were obtained.

The bitter component obtained by the method of the present invention can be used as a laxative or as a bittering agent for foods.

In addition, when removing bitter components, the remaining amount of bitter components can be adjusted by increasing or decreasing the amount of activated carbon that adsorbs bitter components or by setting reaction conditions.

〔Effect of the invention〕

According to the present invention, it is possible to easily and efficiently produce an aloe extract that is completely free from the bitter components of aloe and bitterness.

Claims (1)

[Claims] 1. A bitter component of aloe and an aloe extract that is completely free of bitter components, characterized by adding activated carbon to a transparent aloe extract and separating the bitter component in the aloe extract by adsorbing it to the activated carbon. How to manufacture. 2. Bitter components and bitter taste of aloe characterized by adding a pectinase-containing enzyme to the taken aloe extract for transparency treatment, and then adding activated carbon to separate the bitter component in the aloe extract by adsorbing it to the activated carbon. A method of producing aloe extract without any ingredients.