JPH09206002A - Propolis concentrated extract with low ethanol content - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a propolis concentrated extract having the fluidity for facilitating the mixing of other additive ingredients even when the alcohol content is reduced by adding a specific ingredient thereto. SOLUTION: This propolis concentrated extract with a low ethanol content comprises 15-30wt.% wheat germ oil and has <=5wt.% ethanol content. This extract is obtained by adding the wheat germ oil to a propolis extract prepared by extraction thereof from a raw material with ethanol when concentrating the propolis extract and providing the concentrated extract, containing 15-30wt.% wheat germ oil and having <=5wt.% ethanol content. For example, honey is homogeneously mixed with the concentrated extract to afford a propolis product.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a propolis concentrated extract (propolis conch extract), and more particularly to a propolis concentrated extract having a low ethanol concentration.

[0002]

2. Description of the Related Art Propolis, which is generally called "honeybee", is a substance formed by the honeybees continuing to bite the resinous and resinous resinous components and mixing them with the enzymes in the saliva of the honeybees. . Since this propolis contains micronutrients such as flavonoids, minerals and vitamins, it has attracted attention as a food material that promotes health promotion and disease treatment.

This propolis is generally used as a propolis concentrated extract obtained by extracting useful components from raw material propolis with ethanol to obtain a propolis extract, and then evaporating and concentrating ethanol from the propolis extract. Such a conventional propolis concentrated extract contains ethanol at a high concentration (generally 20 to 30% by weight), and is not necessarily satisfactory in that alcohol odor remains. At this time, if ethanol is forcibly evaporated, it loses fluidity, becomes difficult to mix with other additive components, and becomes unsuitable for use as a food material.

[0004]

Means for Solving the Problems The present inventor has found that by adding a specific component, even if the alcohol content is lowered, excellent fluidity is maintained to facilitate mixing with other additive components. It was found that a propolis concentrated extract can be obtained.

Thus, according to the present invention, there is provided a propolis concentrated extract containing 15 to 30% by weight of wheat germ oil and 5% by weight or less of ethanol based on the propolis extract. It

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A propolis concentrated extract having a low ethanol content according to the present invention is obtained by adding wheat germ oil when concentrating a propolis extract obtained by extracting a propolis raw material from which foreign substances have been removed with ethanol. To be

[0007] Wheat germ oil is added to the propolis extract in an amount of 15 to 30% by weight, preferably 20 to 30% by weight. By adding this wheat germ oil, even if the ethanol content is concentrated to 5% by weight or less (propolis extract standard) so that the odor is not felt, the obtained propolis concentrated extract retains sufficient fluidity. doing.
Therefore, for example, other additive components often used in propolis products, such as lactose, β-CD (cyclodextrin), or honey, can be mixed homogeneously. The propolis product thus obtained is
Generally, further ethanol is removed in making the final product form (eg, capsule).

The present invention will be described below with reference to examples in order to further clarify the characteristics of the present invention.

[0009]

[Examples] Natural propolis was visually selected and freed from metals such as iron and impurities such as stones and wood chips, after freezing,
It was crushed with a crusher having a 0.8 mm filter set to give a propolis powder.

To 13 kg of propolis powder, 45 liters of a stock solution (99.5%) of primary ethanol was added, mixed and stirred with a stirrer for 10 hours, and then allowed to stand for 120 hours for extraction. 45 liters of ethanol was added to the extraction residue, and the mixture was stirred with a stirrer and left standing for 120 hours for re-extraction. This was repeated twice and the extract was filtered with a suction filter to prepare Brix 30 to obtain a crude propolis extract.

[0011] 7.0 kg of crude propolis extract and 0.25 kg of wheat germ oil (manufactured by Summit Oil & Oil Co., Ltd.) were weighed and placed in a flask of an evaporative concentrator, the temperature of the water bath was set to 40 ° C, and ethanol was evaporated to 1 kg. -Concentrated to obtain a wheat germ oil-added propolis concentrated extract according to the present invention. The ethanol content of the propolis concentrated extract is 3.5% by weight,
The wheat germ oil content was 25% by weight.

Similarly, 7.0 kg of crude propolis extract was weighed, placed in a flask of an evaporative concentrator, the temperature of the water bath was set to 40 ° C., and ethanol was evaporated and concentrated to 1 kg without adding wheat germ oil. The propolis concentrated extract obtained in this way was used as a control.

The wheat germ oil-added propolis concentrated extract according to the present invention and the control propolis concentrated extract were each pulverized to 0.8 mm, and lactose or β-cyclodextrin was added thereto and mixed.

In the case of the control propolis concentrated extract, when lactose or β-cyclodextrin was added, there was no mixing power, and lactose or β-cyclodextrin (β-C
D) became lumpy and a uniform mixture could not be obtained. In particular, this tendency was remarkable when an equal weight or more of lactose or β-CD was added to the control propolis extract.

On the other hand, the wheat germ oil-containing propolis concentrated extract of the present invention was able to obtain a homogeneous mixture even if lactose or β-CD was added up to 3.5 kg per 1 kg of the concentrated extract.

Claims (1)

[Claims] 1. A propolis concentrated extract comprising 15 to 30% by weight of wheat germ oil and having an ethanol content of 5% by weight or less.