CN105806732A - Method for measuring limit extraction rate of regenerated tobacco raw materials through Soxhlet extractor method - Google Patents
Method for measuring limit extraction rate of regenerated tobacco raw materials through Soxhlet extractor method Download PDFInfo
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Abstract
The invention relates to a method for measuring the limit extraction rate of regenerated tobacco raw materials through a Soxhlet extractor method. According to the method, the regenerated tobacco raw materials obtained through a paper making method are extracted through a Soxhlet extractor till liquid in the Soxhlet extractor is clear; the oven dry mass difference before and after raw material extraction is calculated to obtain the limit extraction rate; then the extraction rate of each extraction working section in the production process is obtained. The measuring method is simple, convenient to operate and accurate in measurement.
Description
Technical field
The present invention relates to the detection method of leaf tobacco production process, be specifically related to the assay method of papermaking-method reconstituted tobaccos raw material extraction ratio, belong to reconstituted tobacco technical field.
Background technology
Extraction ratio is the technologic important indicator of papermaking-method reconstituted tobaccos, and it concerns product spreading rate and yield, affects the important quality such as physical and chemical index, aesthetic quality.Soxhlet extraction method is a kind of backflow method for extracting, and specificity is strong, and easy and simple to handle, process losses is few, extracts yield high.But at present, in industry but without the maturation method of determination limit extraction ratio.
Summary of the invention
It is an object of the invention to: a kind of method that Soxhlet extraction method measures reconstituted tobacco raw material limit extraction ratio is provided, Soxhlet extraction method is utilized the soluble substance in papermaking-method reconstituted tobaccos raw material at utmost to be extracted, set up a kind of new method of papermaking-method reconstituted tobaccos soluble substance extraction ratio the extraction ratio in Accurate Determining production process.
The technical solution of the present invention is: adopt Soxhlet extraction device to extract papermaking-method reconstituted tobaccos raw material, and to soxhlet extraction device, liquid clarification is terminal；The absolute dry mass extracting front and back with raw material is poor, is computed drawing limit extraction ratio；And then draw each extraction ratio extracting workshop section in production process.
Raw material is carried out pulverization process by specifically comprising the following steps that of the present invention, grinding and sieving, sieve number 40 order；Within the scope of 1:50-1:200/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepare extracting solution；When liquid boiling, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn；Wherein, X is limit extraction ratio, %；W1 is the over dry weight before extracting, g；W2 is the over dry weight after extracting, g；According to formula(2) each extraction ratio extracting workshop section is drawn；Wherein, Y is each extraction ratio extracting workshop section；X1 is the limit extraction ratio of raw material, %；X2 is the limit extraction ratio of certain workshop section in production process, %.
The method of the present invention is simple, processing ease, and sample size is few, and accuracy rate is high, and on-line checking can measure the limit extraction ratio of raw material, also can pass through limit extraction ratio and convert the extraction ratio recording in production process.
Accompanying drawing explanation
Fig. 1 is the graph of a relation of time and extraction ratio.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme being described further, these embodiments are not to be construed as the restriction to technical scheme.
Embodiment 1: raw material carries out pulverization process, grinding and sieving, sieve number 40 order, within the scope of 1:50/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepares extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn.
The limit extraction ratio of table 1 embodiment 1
Embodiment 2: raw material is carried out pulverization process, grinding and sieving, sieve number 40 order；Within the scope of 1:100/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn.
The limit extraction ratio of table 2 embodiment 2
Embodiment 3: raw material is carried out pulverization process, grinding and sieving, sieve number 40 order；；Within the scope of 1:150/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn.
The limit extraction ratio of table 3 embodiment 3
Embodiment 4: raw material is carried out pulverization process, grinding and sieving, sieve number 40 order；Within the scope of 1:200/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn.
The limit extraction ratio of table 4 embodiment 4
Embodiment 5: production process is extracted the slurry of workshop section through drying, grinding and sieving, sieve number 40 order；Within the scope of 1:50/L, drying slurry is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula according to formula(2), each extraction ratio extracting workshop section, the wherein numerical value in X1 Example 1 are drawn.
Table 5 embodiment 5 extracts the extraction ratio of workshop section
Embodiment 6: production process is extracted the slurry of workshop section through drying, grinding and sieving, sieve number 40 order；Within the scope of 1:100/L, drying slurry is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula according to formula(2), each extraction ratio extracting workshop section, the wherein numerical value in X1 Example 2 are drawn.
Table 6 embodiment 6 extracts the extraction ratio of workshop section
Embodiment 7: production process is extracted the slurry of workshop section through drying, grinding and sieving, sieve number 40 order；Within the scope of 1:150/L, drying slurry is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula according to formula(2), each extraction ratio extracting workshop section, the wherein numerical value in X1 Example 3 are drawn.
Table 7 embodiment 7 extracts the extraction ratio of workshop section
Embodiment 8: production process is extracted the slurry of workshop section through drying, grinding and sieving, sieve number 40 order；Within the scope of 1:200/L, drying slurry is leached with solid-to-liquid ratio with water, prepare extracting solution；When water seethes with excitement, adopting Soxhlet extraction device to extract, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula according to formula(2), each extraction ratio extracting workshop section, the wherein numerical value in X1 Example 4 are drawn.
Table 8 embodiment 8 extracts the extraction ratio of workshop section
Embodiment 9: with embodiment 1, wherein solid-to-liquid ratio is 1:100/L, Extracting temperature when being water boiling, changes over time, and the extraction ratio in the process of Soxhlet extraction method is as shown in Figure 1；1h, 2h, 3h ... 15h carries out extraction ratio experiment, calculate extraction ratio and draw upper figure；It is evident that front 5h from figure, extraction ratio changes exponentially relation and increases, and is further continued for increasing extraction time to 6h, and extraction ratio change is little, and limit extraction ratio reaches at 5h substantially, and extraction ratio is straight line substantially afterwards, and limit extraction ratio is close to 55%.
Embodiment 10: with embodiment 1, wherein solid-to-liquid ratio takes 1:50/L, 1:100/L, 1:200/L, and extraction time is 5h, 10h, 15h respectively, and the extraction ratio tried to achieve is as shown in table 9.
Table 9 limit extraction ratio total divisor design table
Being known by table 9, the importance that the papermaking-method reconstituted tobaccos raw material extraction ratio of a certain formula is affected by two factors is: extraction time > liquor ratio；Drawn by upper table, F31 F21 > F11, △ F1 > △ F2, F32 > F22 > F12 optimal conditions is F(3,3)；Also can being drawn by upper table, the limit extraction ratio that liquor ratio is during 1:200/L is all higher than 51%, and when extraction time reaches 15h, limit extraction ratio is all more than 53%.
Embodiment 11: with embodiment 1, wherein solid-to-liquid ratio is 1:50/L, Extracting temperature when being water boiling, extraction time is 5h, tries to achieve extraction ratio in the limit extraction ratio of raw material and production process as shown in table 10 below respectively.
Limit extraction ratio that table 10 Soxhlet extraction method records and extraction ratio
| Sequence number | Limit extraction ratio/% | Extraction ratio/% |
| 1 | 51.6 | 39.2 |
| 2 | 50.8 | 38.7 |
Claims (2)
1. the method that Soxhlet extraction method measures reconstituted tobacco raw material limit extraction ratio, is characterized in that this extraction ratio assay method comprises the following steps: adopt Soxhlet extraction device to extract papermaking-method reconstituted tobaccos raw material, and to soxhlet extraction device, liquid clarification is terminal；The absolute dry mass extracting front and back with raw material is poor, is computed drawing limit extraction ratio；And then draw each extraction ratio extracting workshop section in production process.
2. the method that Soxhlet extraction method according to claim 1 measures reconstituted tobacco raw material limit extraction ratio, is characterized in that specifically comprising the following steps that raw material carries out pulverization process, grinding and sieving, sieve number 40 order；Within the scope of 1:50-1:200/L, papermaking-method reconstituted tobaccos raw material is leached with solid-to-liquid ratio with water, prepare extracting solution；Adopt Soxhlet extraction device to extract when water seethes with excitement, extraction time, to soxhlet extraction device, liquid clarification was terminal be more than or equal to 5 hours；Poor with the absolute dry mass of raw material before and after extracting, according to formula(1) limit extraction ratio is drawn；Wherein, X is limit extraction ratio, %；W1 is the over dry weight before extracting, g；W2 is the over dry weight after extracting, g；According to formula(2) each extraction ratio extracting workshop section is drawn；Wherein, Y is each extraction ratio extracting workshop section；X1 is the limit extraction ratio of raw material, %；X2 is the limit extraction ratio of certain workshop section in production process, %.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106509974A (en) * | 2016-11-04 | 2017-03-22 | 云南中烟工业有限责任公司 | Method for judging extraction stop point of tobacco raw materials |
| CN110608970A (en) * | 2019-09-27 | 2019-12-24 | 福建金闽再造烟叶发展有限公司 | Method for measuring tobacco chemical component extraction rate in paper-making reconstituted tobacco extraction process |
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| CN110608970B (en) * | 2019-09-27 | 2021-12-31 | 福建金闽再造烟叶发展有限公司 | Method for measuring tobacco chemical component extraction rate in paper-making reconstituted tobacco extraction process |
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Inventor after: Zhang Yujuan Inventor after: Yuan Guangxiang Inventor after: Jiang Yufan Inventor after: Yu Jing Inventor after: Wang Dong Inventor before: Zhang Yujuan Inventor before: Jiang Yufan Inventor before: Yu Jing Inventor before: Wang Dong |
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Application publication date: 20160727 |