Rigid sampling container for evaluating fragrance quality of essence

Abstract

The utility model discloses a rigid sampling container for evaluating fragrance quality of essence, which comprises an inner layer container (1) and an outer layer container (2) which are sleeved, and an interlayer (3) is formed between the inner layer container (1) and the outer layer container (2); the inner-layer container (1) is communicated with the outside atmosphere through a first valve (11) and a second valve (12); and the outer-layer container (2) is communicated with the outside atmosphere through a third valve (21) and a fourth valve (22). According to the rigid sampling container for evaluating the fragrance quality of the essence, liquid sampling of the essence is not needed, gas sampling is directly carried out, sampling is simple, and sample treatment does not need to be carried out after detection is completed; and repeated evaluation can be carried out after one-time sampling, and the device is convenient to clean and can be repeatedly used.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a rigid sampling container for evaluating the aroma quality of essences. Background Art

[0002] Tobacco flavors play a role in giving tobacco products aroma characteristics, blending tobacco flavors, improving smoking quality, and improving processing performance. They are indispensable additives in the modern cigarette industry. Therefore, it is particularly important to control the quality of tobacco flavors. Among them, general evaluation of the aroma quality of tobacco flavors, judging whether its aroma quality is consistent with the standard sample and whether it has changed, are important quality control indicators for tobacco flavors.

[0003] In the prior art, the general evaluation of aroma quality of tobacco flavors is carried out according to the standard of YC / T 145.6 "General Evaluation Method for Aroma Quality of Tobacco Flavors". The specific operation method is to put equal amounts of test sample and standard sample in the same clean and odorless sample bottles, and then use aroma identification paper to dip about 1-2cm of the test sample and standard sample in the container, and the evaluator will use the sense of smell to judge the aroma quality (including aroma type, aroma concentration, strength, persistence, and impurities) to determine whether the aroma quality of the test sample has changed compared with the standard sample.

[0004] It can be seen that the general evaluation of the aroma quality of tobacco flavors first requires sampling the incoming samples to obtain test samples, and then the test samples need to be dipped into the fragrance paper, and then the natural volatilization of the tobacco flavors on the fragrance paper is used to complete the evaluation through the olfactory discrimination of the evaluator. On the one hand, tobacco flavors are generally liquids and are packaged in 25 kg or larger plastic barrels. In order to ensure the representativeness and uniformity of the sampling, the samplers need to shake the packaging barrels, and then pour the samples from the packaging barrels or take out the samples with sampling containers. The whole sampling process is cumbersome and laborious; on the other hand, after the sample sampling and evaluation is completed, the samples need to be destroyed or other harmless treatments, which will cause waste and pollution to the environment. Utility Model Content

[0005] In order to solve the above technical problems, the first purpose of the utility model is to provide a rigid sampling container for evaluating the aroma quality of flavors; the rigid sampling container for evaluating the aroma quality of flavors provided by the present application does not require liquid sampling of the flavor, but directly performs gas sampling, and the sampling is simple, and there is no need to process the sample after the test; after one sampling, repeated evaluations can be performed, and it is easy to clean and can be used repeatedly.

[0006] The technical solution provided by the utility model is as follows:

[0007] A rigid sampling container for evaluating the aroma quality of an essence, comprising an inner container and an outer container which are arranged in a sleeve, wherein a sandwich is formed between the inner container and the outer container;

[0008] The inner container is connected to the outside atmosphere through the first valve and the second valve;

[0009] The outer container is connected to the outside atmosphere through the third valve and the fourth valve.

[0010] Preferably, the inner container passes through the first pipeline and the second pipeline to pass through the outer container and communicate with the outside atmosphere;

[0011] The first valve is arranged on the first pipeline, and the second valve is arranged on the second pipeline.

[0012] Preferably, the second pipeline is longer than the first pipeline.

[0013] Preferably, the second pipeline is provided with a telescopic bellows section.

[0014] Preferably, the outer container is connected to the outside atmosphere through a third pipeline and a fourth pipeline;

[0015] The third valve is arranged on the third pipeline, and the fourth valve is arranged on the fourth pipeline.

[0016] Preferably, the volume of the inner container is 100-1000 ml.

[0017] Preferably, the volume of the inner container is 500-800 ml.

[0018] Preferably, the inner container and the outer container are respectively made of metal or hard plastic.

[0019] Preferably, the inner container and the outer container are made of stainless steel.

[0020] The present application provides a rigid sampling container for evaluating the quality of flavor aroma, including an inner container and an outer container that are arranged in a sleeve, and a sandwich is formed between the inner container and the outer container; the inner container is connected to the outside atmosphere through a first valve and a second valve, and the outer container is connected to the outside atmosphere through a third valve and a fourth valve (that is, the sandwich is connected to the outside atmosphere through the third valve and the fourth valve). The rigid sampling container provided by the present application has an interlayer that can be used to store a heat preservation medium, and the inner container stores the aroma of the flavor to be evaluated. Therefore, there is no need to sample the liquid of the flavor, and gas sampling can be performed directly, which is simple to sample; when evaluation is required, the first valve or the second valve is opened to allow the gaseous aroma to escape for evaluation, and repeated evaluation can be performed after one sampling. In addition, since gas sampling is performed directly, there is no need to process the sample after the test is completed; and the rigid sampling container provided by the present application is easy to clean and can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a rigid sampling container used for evaluating the aroma quality of essences in an embodiment of the utility model;

[0023] Figure 2 Another structural schematic diagram of a rigid sampling container for evaluating the aroma quality of essences in an embodiment of the utility model;

[0024] Figure numerals: 1-inner container; 11-first valve; 12-second valve; 13-first pipeline; 14-second pipeline; 2-outer container; 21-third valve; 22-fourth valve; 23-third pipeline; 24-fourth pipeline; 3-interlayer. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0029] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0030] As shown in the figure, the embodiment of the utility model provides a rigid sampling container for flavor and aroma quality assessment, comprising an inner container 1 and an outer container 2 which are arranged in a sleeve, and a sandwich 3 is formed between the inner container 1 and the outer container 2;

[0031] The inner container 1 is connected to the outside atmosphere through a first valve 11 and a second valve 12;

[0032] The outer container 2 is connected to the outside atmosphere through the third valve 21 and the fourth valve 22 .

[0033] The present application provides a rigid sampling container for evaluating the quality of flavor aroma, including an inner container 1 and an outer container 2, with an interlayer 3 formed between the inner container 1 and the outer container 2; the inner container 1 is connected to the outside atmosphere through the first valve 11 and the second valve 12, and the outer container 2 is connected to the outside atmosphere through the third valve 21 and the fourth valve 22 (that is, the interlayer 3 is connected to the outside atmosphere through the third valve 21 and the fourth valve 22). In the rigid sampling container provided by the present application, the interlayer 3 can be used to store the heat preservation medium, and the inner container 1 stores the flavor aroma to be evaluated, so there is no need to sample the liquid of the flavor, and gas sampling is directly performed, which is simple to sample; when evaluation is required, the first valve 11 or the second valve 12 is opened to allow the gaseous aroma to escape for evaluation, and repeated evaluation can be performed after one sampling. In addition, since gas sampling is performed directly, there is no need to process the sample after the test is completed; and the rigid sampling container provided by the present application is easy to clean and can be used repeatedly.

[0034] Specifically, the method for using the rigid sampling container provided in this application is as follows:

[0035] S1. Open the third valve 21 and the fourth valve 22, add water or other heat preservation medium into the interlayer 3 through the third valve 21, and the air in the interlayer 3 is discharged from the fourth valve 22 at the same time; then close the third valve 21 and the fourth valve 22, and freeze the rigid sampling container (below 0°C).

[0036] S2, open the first valve 11, close the second valve 12, connect the first valve 11 to a vacuum air pump to evacuate; after evacuating the vacuum, close the first valve 11.

[0037] S3. Open the lid of the tobacco flavor packaging barrel, extend the second valve 12 of the rigid sampling container into the upper space in the packaging barrel, but do not touch the tobacco flavor liquid; open the second valve 12, use the negative pressure of the rigid sampling container to automatically inhale the gas in the upper space in the tobacco flavor packaging barrel, absorb for 0.5-2 minutes, remove the rigid container, and close the second valve 12; sampling is completed. After sampling, freeze the rigid sampling container (below 0°C), and then place the rigid sampling container at room temperature to allow it to reach equilibrium with the room temperature.

[0038] S4, after the evaluator is ready for evaluation, he opens the second valve 12. Since the pressure in the rigid sampling container is greater than the ambient pressure at this time, the gas in the rigid container can automatically overflow after the valve is opened, and the evaluator judges the aroma quality of the overflowing gas by smell.

[0039] The above steps S1 to S3 can be prepared in advance. Step S4 can be performed at any time when evaluation is required.

[0040] The applicant found that after tobacco flavoring is added to the packaging barrel, the tobacco flavoring liquid will not be filled up, and there will be a certain amount of space left in the upper layer. During transportation and storage, the volatile components in the tobacco flavoring will fully evaporate into the upper space in the packaging barrel. The general evaluation of aroma quality in this field adopts YC / T 145.6 "General Evaluation Method for Aroma Quality of Tobacco Flavoring", which also uses fragrance paper to absorb the liquid sample, and the evaluator uses the sense of smell to judge the aroma quality, and also smells the aroma components volatilized from the liquid. Therefore, directly taking the gas in the upper space in the tobacco flavoring packaging barrel can fully represent the aroma of the tobacco flavor, and the same olfactory evaluation is performed, and the results obtained can also accurately evaluate the aroma quality of the tobacco flavor. Therefore, based on a deep understanding of the principle of the general evaluation method for aroma quality of tobacco flavoring, this application provides a rigid sampling container for flavor aroma quality evaluation, which is particularly suitable for the quality evaluation of tobacco flavoring.

[0041] The rigid sampling container provided in the present application is frozen before and after sampling. On the one hand, this is to ensure that the vacuum degree of the inner space will be higher under low temperature conditions, which is conducive to automatically inhaling more gas in the upper space of the tobacco flavor packaging barrel; on the other hand, this is to ensure that when conducting a general assessment of the aroma quality, after the rigid container is balanced to room temperature, due to the increase in temperature, the pressure in the rigid container is greater than the ambient pressure, and the gas in the rigid container can automatically overflow after the valve is opened.

[0042] In step S1, the amount of water added is preferably about 80% of the interlayer space. The rigid sampling container is preferably frozen overnight (below 0°C). The freezing medium injected into the interlayer 3 is preferably water, which is simple and easy to use.

[0043] Preferably, the inner container 1 passes through the first pipeline 13 and the second pipeline 14 to pass through the outer container 2 and communicate with the outside atmosphere;

[0044] The first valve 11 is disposed on the first pipeline 13 , and the second valve 12 is disposed on the second pipeline 14 .

[0045] It is further preferred that the inner container 1 passes through the outer container 2 through the first pipeline 13 and the second pipeline 14 and is connected to the outside atmosphere. The arrangement of the pipelines makes it easier to reach into the flavor barrel for sampling. At the same time, the first valve 11 is arranged on the first pipeline 13, and the second valve 12 is arranged on the second pipeline 14, which is convenient for operators to operate.

[0046] Preferably, the second pipeline 14 is longer than the first pipeline 13 .

[0047] It is more preferred that the length of the second pipeline 14 is longer than the first pipeline 13. Using the longer second pipeline 14 to extend into the barrel can avoid moving heavy flavor barrels. It can also achieve sampling of flavors with less or even no moving of rigid sampling containers (inner container 1 and outer container 2).

[0048] In the present application, there is no special requirement for the positions of the first pipeline 13 and the second pipeline 14, which can be located on two opposite walls of the inner container 1, or two adjacent walls, or the same wall; to facilitate the entry and exit of fragrance, it is preferred that the first pipeline 13 and the second pipeline 14 are located on two opposite walls of the inner container 1.

[0049] Preferably, the second pipeline 14 is provided with a retractable bellows section.

[0050] A retractable corrugated section is also provided in the second pipeline 14, so as to facilitate the sampling in the essence barrel. The second valve 12 is provided at a distance from the corrugated section to avoid the setting of the valve affecting the retractability of the corrugated section.

[0051] Preferably, the outer container 2 is connected to the outside atmosphere through the third pipeline 23 and the fourth pipeline 24;

[0052] The third valve 21 is disposed on the third pipeline 23 , and the fourth valve 22 is disposed on the fourth pipeline 24 .

[0053] The outer container may also be provided with a third pipeline 23 and a fourth pipeline 24 , and the third valve 21 is provided on the third pipeline 23 , and the fourth valve 22 is provided on the fourth pipeline 24 , so as to facilitate the delivery of the freezing medium (such as water) into the interlayer 3 or the discharge thereof.

[0054] Preferably, the volume of the inner container 1 is 100-1000 ml.

[0055] Preferably, the volume of the inner container 1 is 500-800 ml.

[0056] The volume of the inner container 1 is 100-1000 ml, more preferably 500-800 ml, which can meet the requirements of sampling for one or more evaluations, and the volume of the entire rigid sampling container is suitable for being placed in a refrigerator or freezer for freezing, and is convenient for operators to carry, sample, evaluate and other operations.

[0057] Preferably, the inner container 1 and the outer container 2 are respectively made of metal or hard plastic.

[0058] Preferably, the inner container 1 and the outer container 2 are made of stainless steel.

[0059] Preferably, the inner container 1 and the outer container 2 are made of metal or hard plastic, and more preferably made of stainless steel, which is easy to manufacture, durable, easy to clean, and will not interfere with the aroma.

[0060] Example 1

[0061] A rigid sampling container for evaluating the aroma quality of an essence, comprising an inner container 1 and an outer container 2 which are arranged in a sleeve, wherein an interlayer 3 is formed between the inner container 1 and the outer container 2;

[0062] The inner container 1 passes through the outer container 2 through the first pipeline 13 and the second pipeline 14 and is connected to the outside atmosphere; the first valve 11 is arranged on the first pipeline 13, and the second valve 12 is arranged on the second pipeline 14;

[0063] The outer container 2 is connected to the outside atmosphere through the third pipeline 23 and the fourth pipeline 24; the third valve 21 is arranged on the third pipeline 23, and the fourth valve 22 is arranged on the fourth pipeline 24;

[0064] The volume of the inner container 1 is 500 ml, and the inner container 1 and the outer container 2 are made of stainless steel.

[0065] The above rigid sampling container was used to conduct a general evaluation of the aroma quality of tobacco flavoring essence A. This essence is a brown transparent liquid. At 20°C, its relative density is 0.8168, and its refractive index is 1.3646. It has a spicy and fruity aroma. It is packaged in a 25L blue plastic barrel.

[0066] The assessment steps are as follows:

[0067] S1. Open the third valve 21 and the fourth valve 22, and add water into the interlayer 3 through the third valve 21. The amount of water added is about 80% of the interlayer space; the air in the interlayer 3 is discharged from the fourth valve 22 at the same time; then close the third valve 21 and the fourth valve 22, and freeze the rigid sampling container (below 0°C).

[0068] S2, open the first valve 11, close the second valve 12, connect the first valve 11 to the vacuum air pump and evacuate for 2 minutes; after the vacuum is evacuated, close the first valve 11.

[0069] S3. Open the lid of the tobacco flavor packaging barrel, extend the second pipe 14 of the rigid sampling container into the upper space in the packaging barrel, but do not touch the tobacco flavor liquid; open the second valve 12, use the negative pressure of the rigid sampling container to automatically inhale the gas in the upper space in the tobacco flavor packaging barrel, and after absorbing for 2 minutes, remove the rigid container and close the second valve 12; the sampling is completed. After sampling, freeze the rigid sampling container (below 0°C), and then place the rigid sampling container at room temperature to allow it to reach equilibrium with the room temperature.

[0070] S4. After the 12 evaluators are ready for evaluation, they open the second valve 12. Since the pressure in the rigid sampling container is greater than the ambient pressure at this time, the gas in the rigid container can automatically overflow after the valve is opened, and the evaluators judge the aroma quality of the overflowing gas by smell.

[0071] The standard samples were sampled in the same way, and the aroma quality of the escaped gas was judged by the evaluators using their sense of smell in the same way.

[0072] Example 2

[0073] Taking the general evaluation of the aroma quality of tobacco flavoring B as an example, this flavor is a brown viscous liquid. At 20 degrees Celsius, its relative density is 0.9349, and its refractive index is 1.5436. It has a sweet and roasted aroma. It is packaged in a 25L blue plastic barrel.

[0074] The above tobacco flavoring B and standard samples were evaluated using the same rigid sampling container and method as in Example 1, except that the second pipeline 14 of the rigid sampling container was longer than the first pipeline 13, and the second pipeline 14 was provided with a retractable corrugated section.

[0075] The container and method of Example 1 were used to verify the rigid sampling container and the method of use for flavor aroma quality assessment of the present application, as follows:

[0076] The evaluation team is composed of 12 evaluators who are qualified to evaluate aroma quality. 12 groups of samples are prepared, each group of samples consists of 3 coded samples, of which two samples are the same and one sample is different: Code 1 is the incoming sample of flavoring essence A, and Code 2 is the standard sample of flavoring essence A. The codes of the 12 groups of samples are as follows: 211, 122, 112, 221, 121, 212, 211, 122, 112, 221, 121, 212. The three-point inspection method is used to assess whether the aroma quality (including fragrance type, aroma concentration, strength, persistence, and impurities) of the sample is consistent with that of the standard sample. The YC / T 145.6 scent paper dipping method and the container and method of Example 1 are used respectively, and each evaluator points out the single zero sample. The results of correctly pointing out the single zero sample are as follows:

[0077]

[0078] Check the significance table of binomial distribution in the appendix of YC / T 145.6 standard (α=5%). When there are 12 evaluators for the three-point test method, its critical value is 8. The two methods correctly point out that the number of single zero samples is 6 and 5, both of which are less than the critical value 8. Therefore, at the 5% significance level, there is no significant difference between the incoming sample and the standard sample of flavoring essence A.

[0079] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rigid sampling container for flavor and aroma quality assessment, characterized in that: It comprises an inner container (1) and an outer container (2) which are arranged in a sleeve, wherein an interlayer (3) is formed between the inner container (1) and the outer container (2); The inner container (1) is connected to the outside atmosphere via a first valve (11) and a second valve (12); The outer container (2) is connected to the outside atmosphere via a third valve (21) and a fourth valve (22).

2. The rigid sampling container according to claim 1, characterized in that: The inner container (1) passes through the first pipeline (13) and the second pipeline (14) to pass through the outer container (2) and communicate with the outside atmosphere; The first valve (11) is arranged on the first pipeline (13), and the second valve (12) is arranged on the second pipeline (14).

3. The rigid sampling container according to claim 2, characterized in that: The second pipeline (14) is longer than the first pipeline (13).

4. The rigid sampling container according to claim 3, characterized in that: The second pipeline (14) is provided with a retractable corrugated section.

5. The rigid sampling container according to claim 1, characterized in that: The outer container (2) is connected to the outside atmosphere via a third pipeline (23) and a fourth pipeline (24); The third valve (21) is arranged on the third pipeline (23), and the fourth valve (22) is arranged on the fourth pipeline (24).

6. The rigid sampling container according to claim 1, characterized in that: The volume of the inner container (1) is 100-1000 ml.

7. The rigid sampling container according to claim 6, characterized in that: The volume of the inner container (1) is 500-800 ml.

8. The rigid sampling container according to claim 1, characterized in that: The inner container (1) and the outer container (2) are respectively made of any one of metal or hard plastic.

9. The rigid sampling container according to claim 8, characterized in that: The inner container (1) and the outer container (2) are made of stainless steel.

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