CN107474958B - Method for preparing saffron crocus extract by using pervaporation membrane - Google Patents
Method for preparing saffron crocus extract by using pervaporation membrane Download PDFInfo
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- CN107474958B CN107474958B CN201710700321.6A CN201710700321A CN107474958B CN 107474958 B CN107474958 B CN 107474958B CN 201710700321 A CN201710700321 A CN 201710700321A CN 107474958 B CN107474958 B CN 107474958B
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- 239000012528 membrane Substances 0.000 title claims abstract description 34
- 235000015655 Crocus sativus Nutrition 0.000 title claims abstract description 32
- 244000124209 Crocus sativus Species 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005373 pervaporation Methods 0.000 title claims abstract description 25
- 239000001599 crocus sativus l. flower extract Substances 0.000 claims abstract description 60
- 229940076591 saffron extract Drugs 0.000 claims abstract description 60
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 45
- 239000000126 substance Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 235000013974 saffron Nutrition 0.000 claims abstract description 18
- 239000004248 saffron Substances 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 9
- 238000010992 reflux Methods 0.000 claims abstract description 6
- 239000003205 fragrance Substances 0.000 claims description 21
- 238000009834 vaporization Methods 0.000 claims description 13
- 230000008016 vaporization Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 11
- 235000009508 confectionery Nutrition 0.000 abstract description 9
- 239000000779 smoke Substances 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 230000000638 stimulation Effects 0.000 abstract description 4
- 238000009499 grossing Methods 0.000 abstract description 2
- 241000628997 Flos Species 0.000 abstract 1
- 239000004697 Polyetherimide Substances 0.000 description 13
- 229920001601 polyetherimide Polymers 0.000 description 13
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 6
- 238000000638 solvent extraction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 4
- QJJDNZGPQDGNDX-UHFFFAOYSA-N oxidized Latia luciferin Chemical compound CC(=O)CCC1=C(C)CCCC1(C)C QJJDNZGPQDGNDX-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001256 steam distillation Methods 0.000 description 3
- 244000061176 Nicotiana tabacum Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 241000219925 Oenothera Species 0.000 description 2
- 235000004496 Oenothera biennis Nutrition 0.000 description 2
- 229920002873 Polyethylenimine Polymers 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000234270 Amaryllidaceae Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- PANKHBYNKQNAHN-JTBLXSOISA-N Crocetin Natural products OC(=O)C(\C)=C/C=C/C(/C)=C\C=C\C=C(\C)/C=C/C=C(/C)C(O)=O PANKHBYNKQNAHN-JTBLXSOISA-N 0.000 description 1
- 235000004237 Crocus Nutrition 0.000 description 1
- 241000596148 Crocus Species 0.000 description 1
- IMKHDCBNRDRUEB-UHFFFAOYSA-N Dihydroactinidiolide Natural products C1CCC(C)(C)C2=CC(=O)OC21C IMKHDCBNRDRUEB-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000014047 Polianthes tuberosa Species 0.000 description 1
- 235000016067 Polianthes tuberosa Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PANKHBYNKQNAHN-JUMCEFIXSA-N carotenoid dicarboxylic acid Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C(=O)O)C=CC=C(/C)C(=O)O PANKHBYNKQNAHN-JUMCEFIXSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- PANKHBYNKQNAHN-MQQNZMFNSA-N crocetin Chemical compound OC(=O)C(/C)=C/C=C/C(/C)=C/C=C/C=C(\C)/C=C/C=C(\C)C(O)=O PANKHBYNKQNAHN-MQQNZMFNSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- IMKHDCBNRDRUEB-LLVKDONJSA-N dihydroactinidiolide Chemical compound C1CCC(C)(C)C2=CC(=O)O[C@@]21C IMKHDCBNRDRUEB-LLVKDONJSA-N 0.000 description 1
- POSWICCRDBKBMH-UHFFFAOYSA-N dihydroisophorone Natural products CC1CC(=O)CC(C)(C)C1 POSWICCRDBKBMH-UHFFFAOYSA-N 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011070 membrane recovery Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- -1 poly octyl methyl Chemical group 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0003—Compounds of unspecified constitution defined by the chemical reaction for their preparation
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/362—Pervaporation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Seasonings (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention provides a method for preparing saffron crocus extract by using a pervaporation membrane. The preparation method specifically comprises the following steps: (1) extracting dry flos croci under reflux to obtain extractive solution; (2) concentrating stigma croci Sativi extractive solution; (3) enriching the aroma substances in the concentrated waste liquid by using a pervaporation membrane; (4) and reversely supplementing the enriched aroma substances into the concentrated solution to obtain the saffron extract for cigarettes. The prepared saffron extract for cigarettes retains the characteristic aroma of saffron, has pure aroma, has the effects of increasing cigarette aroma, improving smoke quality, endowing cigarettes with fresh and sweet aroma, reducing stimulation, covering offensive odor, softening and smoothing smoke, improving oral comfort, increasing the sweet feeling of cigarettes and the like when being added into the cigarettes, and improves the adaptability of the saffron extract in the cigarettes.
Description
Technical Field
The invention relates to a preparation method of essence and flavor for cigarettes, in particular to a method for reversely supplementing aroma substances by a pervaporation membrane and preparing a saffron extract for cigarettes.
Background
In modern cigarette production, flavoring is regarded as a non-negligible technology, and cigarette products are rich in characteristics due to the selection of various spices, and bring unique fragrance and satisfaction to consumers during smoking. The natural perfume is widely used in cigarettes due to the characteristics of rich aroma, unique aroma characteristics, pure and mild aroma quality and the like, at present, the natural perfume for cigarettes is mostly extracted by adopting a solvent, and the greatest defect of the process is that the aroma loss is large in the concentration process, so that the current situation that aroma substances are lost due to concentration in the solvent extraction process is changed, and the process becomes a hotspot of research.
Pervaporation (Pervaporation) is an emerging membrane separation technology, which realizes mass transfer by using the chemical potential difference of certain components at the upstream and downstream of a feed liquid membrane as a driving force, and realizes selection by using the difference of affinity and mass transfer resistance of the membrane to different components in the feed liquid. The pervaporation process has the advantages of high energy utilization efficiency, high selectivity, compact device, simple and convenient operation and control, flexible and variable scale and the like. Therefore, the method is applied to the separation of near-boiling and constant-boiling mixtures which are difficult to separate or cannot be separated by common rectification, the removal of trace water in organic solvents and mixed solvents, the recovery of a small amount of organic matters in waste water, the separation and reaction coupling of organic matters/organic matters, the continuous removal of reaction products and the like, and has obvious economic and technical advantages. However, the preparation of the saffron extract for cigarettes is not reported.
Saffron (the scientific name is Polianthes tuberosa), also called evening primrose and evening primrose, and plants of crocus of Amaryllidaceae are distributed in Mexico, south America and other areas. The saffron contains aromatic substances such as saffron aldehyde, furfural, dihydro-beta-ionone, isophorone, dihydroactinidiolide and the like, and the aromatic substances have good effect on the aroma of cigarettes.
The concentrated waste liquor of saffron crocus is treated by utilizing the pervaporation membrane technology, the aroma substances are collected and are reversely supplemented into the saffron crocus extract, and the saffron crocus extract which has pure aroma, obvious characteristic aroma and better application effect in cigarettes can be obtained.
Disclosure of Invention
The invention aims to provide a method for reversely supplementing aroma substances by a pervaporation membrane and preparing a saffron extract for cigarettes.
The invention provides a method for preparing a saffron extract for cigarettes by using a pervaporation membrane, which is characterized by comprising the following steps of:
(1) taking dry saffron crocus, adding water with the weight being 10-20 times of that of the dry saffron crocus, performing reflux extraction, standing and cooling an extracting solution, and collecting filtrate to obtain a saffron extracting solution;
(2) concentrating stigma croci Sativi extractive solution at 60-80 deg.C under reduced pressure to relative density of 1.20-1.30 to obtain stigma croci Sativi extract A; collecting the waste liquid after the saffron crocus extract is concentrated;
(3) selecting a POMS-PEI composite membrane (a poly octyl methyl siloxane-polyetherimide composite membrane) as a pervaporation membrane, carrying out vaporization and permeation treatment on the waste liquid obtained after the concentration of the saffron extract in the step (2) under the conditions that the heating temperature is 50-80 ℃, the feeding speed is 10-100ml/min, liquid nitrogen is used for cooling, and the fragrance substance collecting pressure is 20-100Pa, and collecting fragrance substances;
(4) and (3) reversely supplementing the aroma substances subjected to vaporization and permeation into the saffron extract A concentrated in the step (2), stirring, and uniformly mixing to obtain the saffron extract for cigarettes.
And (2) carrying out reflux extraction on the dry saffron flowers in the step (1) at 100 ℃ for 3-5 h.
The invention utilizes the vaporization osmotic membrane technology to reversely supplement aroma substances to prepare the saffron extract, utilizes the pervaporation membrane technology to collect aromatic substances such as saffron aldehyde, dihydro-beta-ionone, isophorone and the like in the saffron concentrated waste liquid, and reversely supplements the aromatic substances into the saffron extract to prepare the special saffron extract for cigarettes. The POMS-PEI membrane adopted by the invention is an existing composite membrane, and the composite membrane adopted by the invention is a product purchased from GKSS company of Germany; the POMS-PEI membrane is used for enriching saffron aroma substances, and the recovery amount of the aroma substances is obviously higher than that of EVA38, POMS, PDMS and PEI.
Compared with the traditional saffron extract, the relative contents of 13 aroma substances such as furfural, isophorone, crocinal, 2,4, 4-trimethyl-3-formaldehyde-5-hydroxy-2, 5-cyclohexadiene-1-one and the like of the saffron extract prepared by the method are increased. The additive is added into cigarettes, has the effects of increasing cigarette aroma amount, improving smoke quality, endowing the cigarettes with fresh and sweet aroma, reducing stimulation, covering offensive odor, softening and smoothing smoke, improving oral comfort, increasing cigarette sweet feeling and the like, and has an overall evaluation effect obviously superior to that of the traditional saffron extract.
The characteristic saffron extract with high characteristic aroma substance content, pure aroma and good cigarette application effect is prepared by the method, and the extract has characteristic flower aroma and pure aroma. The saffron extract is added into cigarettes, so that the cigarette fragrance amount is increased, the smoke quality is improved, the cigarettes are endowed with fresh and sweet fragrance, the stimulation is reduced, the offensive odor is covered, the smoke is softened and refined, the oral comfort level is improved, the cigarette sweet feeling is increased, and the adaptability of the saffron extract in the cigarettes is improved. The invention changes waste into valuable, improves the quality of the saffron extract and improves the adaptability of the saffron extract in cigarettes.
Detailed Description
The technical problems associated with the present invention will be described in further detail with reference to examples.
Embodiment 1, a method for preparing saffron extract for cigarette by pervaporation membrane, which is characterized by comprising the following steps:
(1) taking dry saffron crocus, adding 10 times of water, reflux-extracting at 100 deg.C for 3-5 hr, standing, cooling, and collecting filtrate to obtain saffron extract;
(2) concentrating the stigma croci Sativi extractive solution collected in step (1) at 60 deg.C under reduced pressure to relative density of 1.20 to obtain stigma croci Sativi extract A, and collecting the concentrated waste liquid;
(3) and (3) selecting a POMS-PEI pervaporation membrane, carrying out vaporization and permeation treatment on the concentrated waste liquid of the saffron extract collected in the step (2) under the conditions of heating temperature of 50 ℃, feeding speed of 10ml/min, liquid nitrogen cooling and fragrance substance collecting pressure of 20Pa, and collecting fragrance substances.
(4) And (3) reversely supplementing the aroma substances vaporized and permeated in the step (3) into the saffron extract A concentrated in the step (2), stirring and uniformly mixing to obtain the saffron extract for cigarettes.
Embodiment 2, a method for preparing saffron extract for cigarette by pervaporation membrane, which is characterized by comprising the following steps:
(1) taking dry saffron flowers, adding 15 times of water, reflux-extracting at 100 deg.C for 3-5 hr, standing, cooling, and collecting filtrate to obtain saffron extract;
(2) concentrating the stigma croci Sativi extractive solution collected in step (1) at 70 deg.C under reduced pressure to relative density of 1.25 to obtain stigma croci Sativi extract A, and collecting the concentrated waste liquid;
(3) selecting a POMS-PEI pervaporation membrane, carrying out vaporization and permeation treatment on the concentrated waste liquid of the saffron extract collected in the step (2) under the conditions of heating temperature of 65 ℃, feeding speed of 50ml/min, liquid nitrogen cooling and fragrance substance collecting pressure of 60Pa, and collecting fragrance substances;
(4) and (3) reversely supplementing the aroma substances after vaporization and permeation collected in the step (3) into the saffron extract A concentrated in the step (2), stirring and uniformly mixing to obtain the saffron extract for cigarettes.
Embodiment 3, a method for preparing saffron extract for cigarette by pervaporation membrane, which is characterized by comprising the following steps:
(1) taking dry saffron flowers, adding water with the weight 20 times of the dry saffron flowers, performing reflux extraction at 100 ℃ for 3-5 hours, standing and cooling an extracting solution, and collecting filtrate to obtain a saffron extracting solution;
(2) concentrating the stigma croci Sativi extractive solution collected in step (1) at 70 deg.C under reduced pressure to relative density of 1.20 to obtain stigma croci Sativi extract A, and collecting the concentrated waste liquid;
(3) selecting a POMS-PEI pervaporation membrane, carrying out vaporization and permeation treatment on the concentrated waste liquid of the saffron extract collected in the step (2) under the conditions of heating temperature of 70 ℃, feeding speed of 50ml/min, liquid nitrogen cooling and fragrance substance collecting pressure of 100Pa, and collecting fragrance substances;
(4) and (3) reversely supplementing the aroma substances collected in the step (3) after vaporization and permeation into the saffron extract A concentrated in the step (2), stirring and uniformly mixing to obtain the saffron extract for cigarettes.
Embodiment 4, a method for preparing saffron extract for cigarette by pervaporation membrane, which is characterized by comprising the following steps:
(1) taking dry saffron flowers, adding water with the weight 20 times of the dry saffron flowers, performing reflux extraction at 100 ℃ for 3-5 hours, standing and cooling an extracting solution, and collecting filtrate to obtain a saffron extracting solution;
(2) concentrating the stigma croci Sativi extractive solution collected in step (1) at 80 deg.C under reduced pressure to relative density of 1.30 to obtain stigma croci Sativi extract A, and collecting the concentrated waste liquid;
(3) and (3) selecting a POMS-PEI pervaporation membrane, carrying out vaporization and permeation treatment on the concentrated waste liquid of the saffron extract collected in the step (2) under the conditions of heating temperature of 80 ℃, feeding speed of 100ml/min, liquid nitrogen cooling and fragrance substance collecting pressure of 100Pa, and collecting fragrance substances.
(4) And (3) reversely supplementing the aroma substances after vaporization and permeation collected in the step (3) into the saffron extract A concentrated in the step (2), stirring and uniformly mixing to obtain the saffron extract for cigarettes.
Test one: the inventor adopts different pervaporation membranes to carry out vaporization and permeation treatment on the waste liquid after the saffron extract is concentrated, analyzes the influence of different pervaporation membranes on the recovery amount of the fragrance substances of the saffron extract, and finds the specific experimental results in table 1:
TABLE 1 Effect of different membranes on saffron extract aroma recovery
| Kind of membrane | Recovery (‰) |
| EVA38 | 0.26 |
| POMS | Is not separated out |
| PDMS | 0.45 |
| PEI | 0.32 |
| POMS-PEI | 0.85 |
As can be seen from the comparative data in table 1, compared with EVA38, POMS, PDMS, and PEI, the POMS-PEI composite film used in the present invention has the highest recovery amount of saffron extract aroma.
And (2) test II: the prepared saffron extract prepared by the method in the application is analyzed and compared with the fragrance components of the saffron extract prepared by the traditional solvent method, and the specific results are shown in table 2:
TABLE 2 comparison of the relative contents of characteristic aroma components of saffron crocus extract extracted by conventional solvent and the method of the present application
As can be seen from table 2, compared with the conventional solvent extraction, the saffron extract prepared in the present application has increased relative contents of 13 saffron characteristic aroma substances such as furfural, isophorone, crocetin, 2,4, 4-trimethyl-3-formaldehyde-5-hydroxy-2, 5-cyclohexadiene-1-one, and the like.
And (3) test III: comparing the odor of the saffron extract prepared by the application with the odor of the saffron extract prepared by the conventional steam distillation method, wherein the comparison result is shown in the following table 3:
table 3 traditional solvent extraction and comparison of the odor of saffron extract prepared herein
| Treatment method | Steam distillation | This application |
| Smelling incense | Sweet and paste incense | Has characteristic flower fragrance and pure fragrance |
And (4) testing: the saffron extract prepared by the method in the application and the saffron extract prepared by the conventional steam distillation method are respectively added into blank cut tobacco according to 0.1 percent of the weight of the cut tobacco, and the rolled cigarettes are respectively subjected to smoking evaluation by a smoking evaluation group, wherein the specific sensory evaluation effect is shown in the table 4:
table 4 comparison of the sensory evaluation results of conventional solvent extraction and the herein prepared saffron extract added to cigarettes
It can be seen through the comparison of smelling of traditional solvent extraction saffron extract and the saffron extract prepared in this application and sense organ evaluation effect (table 3 and table 4), the saffron extract fragrance that utilizes the method preparation in this application is purer, the characteristic fragrant is more obvious, add in the cigarette, have the volume of increasing fragrance, improve smoke quality, give cigarette fresh and sweet fragrant, reduce the stimulation, cover miscellaneous gas, soft flue gas is fine and smooth, oral cavity comfort level becomes good, has effects such as the sense of returning sweet, the effect is obviously superior to the saffron extract of traditional solvent extraction preparation.
The above description is only a detailed description of specific embodiments of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents, improvements, etc. made on the design concept of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A method for preparing a saffron extract for cigarettes by using a pervaporation membrane is characterized by comprising the following steps of:
(1) taking dry saffron crocus, adding water with the weight being 10-20 times of that of the dry saffron crocus, performing reflux extraction at 100 ℃ for 3-5 hours, standing and cooling an extracting solution, and collecting filtrate to obtain a saffron extracting solution;
(2) concentrating stigma croci Sativi extractive solution at 60-80 deg.C under reduced pressure to relative density of 1.20-1.30 to obtain stigma croci Sativi extract A; collecting the waste liquid after the saffron crocus extract is concentrated;
(3) selecting a POMS-PEI composite membrane as a pervaporation membrane, carrying out vaporization and permeation treatment on the concentrated waste liquid of the saffron extract obtained in the step (2) under the conditions that the heating temperature is 50-65 ℃, the feeding speed is 10-50ml/min, liquid nitrogen is used for cooling, and the fragrance substance collecting pressure is 20-100Pa, and collecting fragrance substances;
(4) and (3) reversely supplementing the aroma substances subjected to vaporization and permeation into the saffron extract A concentrated in the step (2), stirring, and uniformly mixing to obtain the saffron extract for cigarettes.
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| CN103385338A (en) * | 2013-06-09 | 2013-11-13 | 南京工业大学 | Method for recovering aroma components in production process of instant tea powder |
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| CN106148013A (en) * | 2016-08-31 | 2016-11-23 | 陈爱梅 | A kind of plant perfume low-temperature extraction technology |
| CN106957880A (en) * | 2016-10-13 | 2017-07-18 | 湖北中烟工业有限责任公司 | A kind of immobilization beta glucuroide prepares method of the cigarette with safranine flower extract |
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|---|---|---|---|---|
| CN101301112A (en) * | 2008-04-30 | 2008-11-12 | 广西中烟工业公司 | Additive agent for flavoring natural tobacco and preparation method and use thereof |
| CN101619271A (en) * | 2009-07-02 | 2010-01-06 | 华顺香料(上海)有限公司 | Traditional Chinese medicine combination spice for cigarette as well as preparation method and application thereof |
| CN103385338A (en) * | 2013-06-09 | 2013-11-13 | 南京工业大学 | Method for recovering aroma components in production process of instant tea powder |
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