JPH05344850A - Deodorizing agent - Google Patents

Abstract

PURPOSE:To provide an easily producible deodorizing agent having excellent deodorizing effect and containing an active component produced by extracting wheat bran with an aqueous solution containing an organic acid. CONSTITUTION:The objective deodorizing agent is produced by adding 100-1,000 pts.wt. of an aqueous solution containing 0.001-0.2mol of an organic acid (preferably lactic acid, citric acid, etc.) to 100 pts.wt. of wheat bran, extracting the extractable component of the wheat bran under agitation at normal temperature, pulverizing the extract by neutralization, etc., preferably treating the powder with steam to remove the wheat smell and compounding a cyclodextrin to the product.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant for foods containing an acid extract of wheat bran and a neutralized product thereof as an active ingredient.

[0002]

2. Description of the Related Art Conventionally, in order to prevent the odor of food, means such as adsorption by activated carbon or silica gel, masking method or inclusion with cyclodextrin is known.
It is also known that an extract of roasted grains such as soybean has a deodorizing effect. However, because of their physical properties, they can only be used in limited food products and are expensive.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a deodorant which is obtained by an inexpensive and simple method and can be used in any food and food form.

[0004]

[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention have conducted extensive studies, and as a result, found that an acid extract of wheat bran was effective as a deodorant. Has been completed. That is, the present invention relates to a food deodorant containing a wheat bran extract or a neutralized product thereof as an active ingredient in an aqueous solution containing at least one organic acid. Preferred organic acids used in the present invention include one or more acids selected from the group consisting of lactic acid, citric acid, malic acid, fumaric acid and acetic acid. The wheat bran extract thus obtained can be used as it is as a deodorant for foods. However, since this wheat bran extract has a slight wheat odor, it is possible to obtain a more preferable deodorant by removing or reducing the wheat odor. The present inventors, this problem, by steaming the wheat bran extract described above,
Further, they have found that this can be achieved by adding cyclodextrin to the above deodorant, and completed a more preferable food deodorant. Therefore, the present invention also relates to a deodorizing agent for the above-mentioned foods, characterized in that the wheat bran extract has been steam-treated, and a deodorizing agent for the above-mentioned foods, characterized in that cyclodextrin is further added.

The acid extract of wheat bran, which is the active ingredient of the present invention, has an effect of improving microbial productivity (Japanese Patent Laid-Open No. 23184/1989).
No. 0) and mushroom cultivation enhancement effect (Japanese Patent Laid-Open No. 1962/1989).
No. 0), and can be produced by the method described in the above publication. As the organic acid used for extracting wheat bran, lactic acid, citric acid, malic acid, fumaric acid, and acetic acid, which can be used as food additives, are preferable. It is desirable that these organic acids be an aqueous solution of 0.001 to 0.2 mol. Upon extraction, the proportion of wheat bran and the acid aqueous solution is preferably 100 to 1000 parts by weight of the acid aqueous solution with respect to 100 parts by weight of wheat bran. The extraction operation may be carried out by adding an acid solution to wheat bran and stirring the mixture with an appropriate mixer such as a propeller mixer for 5 to 30 minutes. The temperature at this time may be 5 ° C to 50 ° C, generally room temperature. Then, solid-liquid separation is performed by a known method to obtain an extract. It is easy to first carry out pressure filtration, then centrifuge the filtrate and collect the supernatant. The obtained extract may be neutralized with a base such as sodium hydroxide, sodium carbonate or potassium hydroxide. The concentrate is then concentrated, and the obtained concentrate can be used as it is as a deodorant, but it is preferable to further dry it to obtain a powder in order to improve storage stability. As a drying method, any known technique such as spray drying, hot air drying, and vacuum freeze drying can be used. The acetic acid extract of the present invention can remove volatile acetic acid by concentrating or drying. Regarding the use of the acetic acid extract containing acetic acid, it is preferable to use it for removing unpleasant odors other than acetic acid odor of foods using vinegar such as pickled fish.

To remove the wheat odor of the wheat bran extract, for example, the wheat bran extract powder can be steamed. Alternatively, steam treatment may be performed during the extraction process and the powdering process. Specifically, for example, it is possible to remove an odor by putting an extract or powder before drying which is dissolved in water in a tank and passing steam through the tank. As conditions for steam treatment, it is suitable to pass steam for 15 hours at 1 atm on a solution obtained by adding 15 liters of the extract before drying or 2 kg of the powder extract to 15 liters of water. By adding cyclodextrin to the deodorant of the present invention, wheat odor can be removed. For example, the wheat odor can be removed by adding 0.1 to 80% by weight, preferably 1 to 50% by weight, of cyclodextrin to the powder of wheat bran extract. Further, cyclodextrin may be added in advance during the extraction step to the powdering step to deodorize. In particular, it is preferable to mix it with a solution before pulverization to obtain a dry powder. As cyclodextrin, α, β, γ and a mixture thereof are commercially available, but the cyclodextrin used in the present invention may be any of these types. Cyclodextrin containing α type as a main ingredient, which is inexpensive for food, is simple and has a sufficient wheat odor removing effect.

Since the deodorant of the present invention is an extract of an edible material, the amount added to food is not particularly limited, and therefore the amount added can be varied over a wide range depending on the intensity of malodor and the shape of the food. The deodorant of the present invention can be used for marine products, livestock meat products, garlic and its extract-containing foods, yeast and its extract-containing foods, and the like. When applying the deodorant of the present invention to tablet foods, soups, noodles, breads, etc., usually, the deodorant is compounded during the raw material or manufacturing process of these foods, and the amount added is generally the total weight of the food. 0.01 to 20% by weight is preferable, and 0.1 to 10% by weight is more preferable. When the deodorant of the present invention is applied to deodorize fish or the like, it is possible to immerse the food in an aqueous solution of the deodorant or spray the aqueous solution onto the food. Generally, the concentration of the aqueous solution is preferably 0.1 to 10% by weight, more preferably 1 to 5% by weight. Further, the deodorant can be used in combination with a preservative such as an antioxidant or an antibacterial agent.

The present invention will be described in more detail with reference to Reference Examples, Examples and Test Examples. Reference Example 1 (Production of wheat bran extract) To 100 kg of bran, 600 liters of water containing 2.2 kg of citric acid was added, and after stirring for 30 minutes, solid-liquid separation was performed to obtain an extract.
The extract was concentrated to 50 liters and left at 4 ° C overnight. The deposited precipitate was removed, 3 kg of dextrin was added and spray-dried to produce 13 kg of wheat bran extract. At this time, the magnesium content was 1.7% and the potassium content was 3.
It was 8%. Reference Example 2 (Production of neutralized product of wheat bran extract) To 100 kg of bran, 600 liters of water containing 2.2 kg of citric acid was added, stirred for 30 minutes, and solid-liquid separated to obtain an extract.
The extract was neutralized with sodium carbonate, concentrated to 50 liters, and left overnight at 4 ° C. The deposited precipitate was removed, 3 kg of dextrin was added and spray-dried to produce 13 kg of wheat bran extract. The magnesium content at this time is
The content was 1.5% and the potassium content was 3.4%.

[0009]

Example 1 Yeast extract 100 kg, wheat bran extract 25 kg obtained from Reference Example 1, sugar 150 kg, dextrin 150 kg were mixed with lubricant, cellulose, flavoring, etc. 75 kg and tableted,
A round tablet candy weighing 500 mg was produced. Example 2 A 1% solution of the wheat bran extract obtained in Reference Example 1 was sprayed onto the whole sweet fillet of sweet salt cod fillet, lightly wiped off with water, and then stored in a refrigerator for 1 day. Water was sprayed as a control. The fishy odor was remarkably disappeared as compared with the conventional one. Example 3 300 g of the wheat bran extract produced in Reference Example 1 was added to 1.5 g of water.
It was mixed with liter and steamed for 4 hours. The residual liquid was freeze-dried and deodorized wheat bran extract 290
g was obtained. The steam-treated wheat bran extract had no wheat odor, either as a powder or as a solution.

Example 4 1 part by weight of cyclodextrin was added to and mixed with 9 parts by weight of the wheat bran extract produced in Reference Example 1. The wheat bran extract produced in this way had no wheat odor in either powder or solution. Example 5 100 kg of yeast extract, 25 kg of wheat bran extract containing 10% cyclodextrin, 150 kg of sugar, and 150 kg of dextrin were mixed with 75 kg of lubricants, cellulose, flavors and the like to form tablets, which weighed 500 mg. Example 6 Odorless garlic 5% by weight, glucose 60% by weight, lactose 33
% By weight and 2% by weight of wheat bran extract containing 10% cyclodextrin were mixed to produce granules by a granulator.
Further, the granules were manufactured by a tableting machine into tablets of 500 mg each. Example 7 1% by weight of wheat bran extract containing 10% cyclodextrin was added to a gyoza ingredient to produce gyoza.

Test Example 1 (Deodorizing effect on various malodorous substances) In a 100 ml Erlenmeyer flask, 1 ml of malodorous solution and Reference Example 1
1 ml of a solution of wheat bran extract obtained from Example 3 at various concentrations was added, and the mixture was allowed to stand at room temperature for 1 hour, and then the gas concentration in the flask was measured with a gas detector tube. The gas concentration generated from the added malodorous solution was measured. The deodorizing rate of each liquid was determined based on the gas concentration in the malodorous solution containing no wheat bran extract, and the wheat odor was further investigated. Table 1 below shows the test results of wheat bran extract and its steam-treated product. The neutralized product of wheat bran extract and the neutralized product of steam-treated product showed almost the same effect. The cyclodextrin formulation also showed a similar effect. The concentration of wheat bran extract added (%) in the table represents the final concentration after mixing the malodorous solution, and the presence or absence of wheat odor was evaluated in three levels: A: almost odorless, B: slightly odorous, C: considerably odorous. did. As a control, a commercially available plant fiber extract extract-containing deodorant was used, and the results are shown in Table 2.

[0012]

[Table 1] Odor after 1 hour Wheat bran Wheat bran Extract Steam treated substance Substance Emission gas Extract gas Deodorant rate Wheat odor gas Deodorant rate Wheat odor Solution concentration (ppm) Addition concentration (%) Presence / absence concentration ( %) Presence or absence Concentration (%) (ppm) (ppm) ──────────────────────────────────── ─ Trimethyl 0.25 2 95 A 6 85 A Amine 40 ────────────────────── (280ppm) 0.05 24 40 A 24 40 A ───────── ───────────────────────────── Methyl mercaptan 60 5 40 33 C 43 28 A (50ppm) ──────── ──────────────────────────── 2.5 0 100 C 0 100 A Ammonia ─────────────── ──────── (750ppm) 250 0.5 150 40 B 135 46 A ────────────────── ──── 0.25 210 16 A 225 10 A ──────────────────────────────────── 5.0 30 25 C − − − Acetic acid 40 ────────────────────── (30000ppm) 2.5 35 13 C − − − ──────────── ─────────────────────────

[0013]

[Table 2] Solution concentration of malodorous substance after 1 hour Emission gas Addition concentration Gas concentration Deodorization rate Concentration (ppm) (%) (ppm) (%) ────────────── ─────────────────────── Trimethyl 0.25 35 13 Amine 40 ────────────────────── ── (280ppm) 0.05 35 13 ──────────────────────────────────── Methyl mel 5 50 17 Captan 60 ─────────────────────── (50ppm) 2.5 60 0 ────────────────────── ─────────────── 2.5 200 20 Ammonia ─────────────────────── (750ppm) 250 0.5 250 0 ─ ────────────────────── 0.25 250 0 ───────────────────── ─────────────── 5.0 35 13 Acetic acid 40 ─────────────────────── (30000ppm) 2.5 40 0 ────────────────────────────────────

Test Example 2 (Deodorization of garlic odor) As garlic powder, a garlic odor reducing garlic extract powder preliminarily deodorized is commercially available. When this garlic extract is dissolved in water, a strong garlic odor is generated. Then, 1 g of this garlic extract powder was dissolved in 2 ml of water, and the wheat bran extract of Reference Example 1 and the wheat bran extract containing 10% cyclodextrin of Example 4 were added thereto to examine the odor. The presence / absence of garlic odor and wheat odor was evaluated in three levels: A: almost odorless, B: slightly odorous, and C: considerably odorous. The results are shown in Table 3 below.

[0015]

[Table 3] Presence or absence of added concentration (%) against garlic odor and wheat odor in garlic extract powder ───────────────────────────── ────── Control (no additive) -C-─────────────────────────────────── Wheat bran Extract 5 A C 3 A B 1 C A ────────────────────────────────── Cyclodextrin 5 A A Wheat bran extract containing 10% 3 A A 1 C A

[0016]

The deodorant of the present invention can be obtained by a simple method.
Has an excellent deodorizing effect.

Claims (5)

[Claims] 1. A deodorant for foods, which comprises an extract of wheat bran as an active ingredient in an aqueous solution containing at least one organic acid. 2. A food deodorant comprising a neutralized product of wheat bran extract with an aqueous solution containing at least one organic acid as an active ingredient. 3. The organic acid is lactic acid, citric acid, malic acid,
1 or 2 selected from the group consisting of fumaric acid and acetic acid
The deodorant for foods according to claim 1 or 2, which is the above acid. 4. The deodorant according to claim 1, wherein the wheat bran extract is steam-treated. 5. The deodorant according to claim 1, further comprising cyclodextrin.