JP2001348577A - Method for keeping quality of pyroligneous acid or bamboo pyroligneous acid, and adding active ingredient - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a pyroligneous acid and a bamboo pyroligneous acid produced by a conventional technique requires still standing for a half year or more, and forms a tar-like precipitation caused by a chemical change between components of the pyroligneous acid and the bamboo pyroligneous acid during a long-term preservation even if the pyroligneous acid and the bamboo pyroligneous acid are obtained by repeating the distillations, and sticking to the bottom and the wall surface of a container, further the phenomenon is accelerated by the sunlight, and the deterioration of the quality is also caused under the direct sunshine. SOLUTION: This method for keeping the quality of the pyroligneous acid and the bamboo pyroligneous acid and adding an active ingredient thereto comprises adding a hard charcoal (an activated carbon) to a container storing the pyroligneous acid and the bamboo pyroligneous acid obtained by collecting the steam generated by thermal separation when carbonizing a wood and a bamboo to absorb formaldehyde which is a trace amount of a toxic substance included in the pyroligneous acid and the bamboo pyroligneous acid, and to add a mineral component such as calcium included in the hard charcoal to the pyroligneous acid and the bamboo pyroligneous acid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing formaldehyde, which is a harmful substance contained in trace amounts in wood vinegar and bamboo vinegar, by the adsorptive property of charcoal to remove calcium and the like contained in white charcoal. The present invention relates to a method for maintaining the quality of a wood vinegar / bamboo vinegar solution and adding an active ingredient, wherein a mineral component is added to a wood vinegar / bamboo vinegar solution.

[0002]

2. Description of the Related Art As shown in Fig. 3, conventional wood vinegar and bamboo vinegar are used to carbonize raw wood, and the extracted wood vinegar and bamboo vinegar are allowed to stand for at least half a year to separate the wood and sedimentary tar layers. Then, only the removed wood vinegar / bamboo vinegar liquid layer was extracted and commercialized by repeating standing still or distillation.

[0003]

The wood vinegar solution and bamboo vinegar solution produced by the above-mentioned prior art are allowed to stand for at least half a year at the processing stage to remove impurities by precipitation and repeat distillation. As a result, a method of collecting high quality wood vinegar and bamboo vinegar has been performed. However, even if high-quality wood vinegar and bamboo vinegar are collected for a long period of time, the components in the wood vinegar and bamboo vinegar undergo chemical changes, resulting in tar-like precipitates. And adhere to the bottom and wall of the container. This state is remarkable as it is exposed to sunlight, and there is a problem that quality deteriorates under direct sunlight.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to store wood vinegar and bamboo vinegar in which water vapor generated by thermal separation is collected as an aqueous solution when carbonizing wood or bamboo. White charcoal (activated charcoal) is sealed in the container, and the harmful substance “formaldehyde” contained in the wood vinegar and bamboo vinegar is tracely adsorbed, and the mineral components such as calcium contained in the white charcoal are extracted from the wood vinegar. It is characterized in that it is added to bamboo vinegar.

[0005]

FIG. 1 shows a first embodiment of the present invention, in which a wood vinegar / bamboo vinegar and white charcoal (activated carbon) are sealed in a container.

FIG. 2 shows a second embodiment of the present invention in which wood vinegar / bamboo vinegar and powder of white charcoal are put in a non-woven fabric or the like in a container, and a charcoal pack having both ends sealed by heat bonding is enclosed.

[0007] Next, in order to demonstrate the effect of the present invention, the "wood vinegar liquid / bamboo vinegar liquid" was applied at the test requester "Japan Food Research Laboratories" using the adsorption action of charcoal. The following describes three types of analysis test results attached to the adsorption of a small amount of the harmful substance "formaldehyde" and the addition of an active ingredient such as calcium contained in charcoal to a liquid.

[Interpretation of analytical test report] The purpose of this test was to apply the adsorption effect of charcoal to absorb the harmful substance “formaldehyde” contained in trace amounts in “wood vinegar and bamboo vinegar”. And the results of the results proving that an active ingredient such as calcium contained in charcoal is added to the liquid. No. 100042330-004 About "Control" This sample is a stock solution that is a reference solution for analytical tests and that has been distilled and refined by "distilling the crude wood vinegar solution to the third order" so that the test results are not biased. did. Environment before the test: 7 days, excluding white charcoal, stored at room temperature and in a dark place Result: Calcium is not detected and formaldehyde is 150 ppm. Note: This result will be the basis for the following inspection. No. 100042330-005 “Without White Charcoal” This sample was tested under the following conditions using a stock solution that was a standard for analysis tests. Environment before test: 7 days without white coal Stored in direct sunlight Result: Calcium is not detected and formaldehyde is 140 ppm. Remarks: From this result, it can be seen that the wood vinegar solution stored under direct sunlight contains 10 ppm less harmful substance “formaldehyde” than “control”. This is considered to be because formaldehyde was vaporized due to an increase in the temperature of the liquid. About No. 100042330-006 "Including white charcoal" This sample was tested under the following conditions using a stock solution serving as a reference for an analysis test. Environment before the test: 7 days including white charcoal Store under direct sunlight Result: 2.8 mg / 100 g of calcium, 130 ppm of formaldehyde. Remarks: From this result, it can be seen that the wood vinegar containing white charcoal and stored under direct sunlight contained 20 ppm less harmful substance “formaldehyde” than “control”. This is because the temperature of the liquid has increased,
Formaldehyde was vaporized, and the amount of formaldehyde was 1 less than "white coal-free" stored under the same environmental conditions.
The fact that the amount was reduced by 0 ppm indicates that formaldehyde was adsorbed on the white coal. In addition, calcium was not detected in “control” and “without white charcoal”, but in “with white charcoal”,
The detection of 2.8 mg / 100 g proved that it is possible to add an active ingredient such as “calcium” by adding white charcoal into wood vinegar. Evaluation: Wood vinegar test "Control", "does not contain white charcoal", and "contains white charcoal" show that the wood vinegar liquid vaporizes the harmful substance, formaldehyde, when the temperature rises in direct sunlight. However, the commercialized wood vinegar solution cannot emit vaporized formaldehyde because it is sealed, and the charcoal adsorbs formaldehyde, which is a harmful substance, from the result of "containing white charcoal", It was proved that the formaldehyde content was reduced. Also, from the result of "containing white charcoal", it is possible to add the active ingredient calcium that is not originally contained in the wood vinegar by adding white charcoal in the wood vinegar,
Proven throughout the study. Supplement: As a result of conducting a 7-day sunshine test before requesting an analysis test, the following changes were confirmed as a visual result. * As a supplement to the analysis test results, when the distilled and purified wood vinegar solution was tested for 1 week under 3 conditions and 3 samples,
The following changes were visually observed. Condition: Keep in dark place for 1 week ・ Control Color / No change (Always transparent and pale candy color) Condition: Leave for 1 week in direct sunlight ・ With white charcoal Color / No change (Always transparent and pale candy color)・ Without white charcoal Color / Daily variation (from transparent and pale candy color to gradually pale beer color)

[0009]

According to the present invention, as shown in the above analytical test results, the wood vinegar and bamboo vinegar are allowed to stand for at least half a year or more,
Even in a bamboo vinegar solution, a small amount of `` formaldehyde '' can be adsorbed and removed on white coal in the present invention,
Further, an effective ingredient such as calcium can be added to the wood vinegar solution / bamboo vinegar solution, and the effect of suppressing deterioration in quality caused by aging can be suppressed.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a container in which white charcoal is sealed in a wood vinegar solution / bamboo vinegar solution according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of a container in which a charcoal pack in which white charcoal powder is put into a nonwoven fabric or the like in a wood vinegar solution or a bamboo vinegar solution, and both ends are sealed by thermal bonding, according to a second embodiment of the present invention.

FIG. 3 is an explanatory diagram of a conventional technique.

Claims (1)

[Claims] Claims 1. When carbonizing wood or bamboo, white charcoal (activated carbon) is sealed in a container containing wood vinegar or bamboo vinegar, which is obtained by collecting water vapor generated by thermal separation as an aqueous solution when carbonizing wood or bamboo. Wood vinegar and bamboo vinegar maintain the quality of wood vinegar and bamboo vinegar by adsorbing formaldehyde, a harmful substance contained in trace amounts, and adding minerals such as calcium contained in white charcoal to wood vinegar and bamboo vinegar. How to add active ingredients.