PROCESS FOR PRODUCING SYNTHETIC ABSOLUTES AND PRODUCTS THEREOF

Abstract

The present invention relates to the field of perfumery, that is, the art or process of making a fragrant substance be it natural or synthetic.

The present invention discloses a method of obtaining a better reconstituted absolute NNA+ (Near Natural Absolute) comprising the steps of: a) mixing a synthetic absolute or raw reconstituted absolute with an alcohol; b) freezing the solution of step (a); c) filtering the solution of step (b) through a propylene cloth to separate out non-alcohol soluble substance and to obtain a crystal clear percolate; d) transferring the percolate obtained from step (c) to an alcohol extraction unit, where said solution is boiled in a glass vessel at high temperature and vacuum to separate the alcohol; e) allowing the solution of step (d) to stand for maturation of the reconstituted absolute NNA+.

Claims

1. A method of obtaining a better reconstituted absolute NNA+ (Near Natural Absolute) comprising the steps of: a) mixing a synthetic absolute or raw reconstituted absolute with an alcohol; b) freezing the solution of step (a); c) filtering the solution of step (b) through a propylene cloth to separate out non-alcohol soluble substance and to obtain a crystal clear percolate; d) transferring the percolate obtained from step (c) to an alcohol extraction unit, where said solution is boiled in a glass vessel at high temperature and vacuum to separate the alcohol; e) allowing the solution of step (d) to stand for maturation of the reconstituted absolute NNA+.

2. The method as claimed in claim 1, wherein the ratio of the synthetic absolute or raw reconstituted absolute with an alcohol is about 1:3.

3. The method as claimed in claim 1, wherein the ratio of the synthetic absolute or raw reconstituted absolute with an alcohol is at most 1:10.

4. The method as claimed in claim 1, wherein the alcohol used for mixing the synthetic absolute or raw reconstituted absolute is isopropyl alcohol.

5. The method as claimed in claim 1, wherein the freezing of solution in step (b) is carried at −20° C.

6. The method as claimed in claim 1, wherein the freezing of solution in step (b) is carried for at least 30 minutes.

7. The method as claimed in claim 1, wherein the propylene cloth is 500 mesh cloth.

8. The method as claimed in claim 1, wherein a boiler is used to provide the heat for boiling the solution in the alcohol extraction unit.

9. The method as claimed in claim 1, wherein the solution in step (e) is allowed to stand for 48 to 72 hours.

10. The method as claimed in claim 1, wherein the reconstituted absolute NNA+ has better organoleptic properties.

11. The method as claimed in claim 1, wherein the reconstituted absolute NNA+ is stable.

12.-13. (canceled)

14. A fragrance product comprising a better reconstituted absolute NNA+ (Near Natural Absolute) prepared by a process comprising the steps of: a) mixing a synthetic absolute or raw reconstituted absolute with an alcohol; b) freezing the solution of step (a); c) filtering the solution of step (b) through a propylene cloth to separate out non-alcohol soluble substance and to obtain a crystal clear percolate; d) transferring the percolate obtained from step (c) to an alcohol extraction unit, where said solution is boiled in a glass vessel at high temperature and vacuum to separate the alcohol; e) allowing the solution of step (d) to stand for maturation of the reconstituted absolute NNA+.

15. The product as claimed in claim 14, wherein the ratio of the synthetic absolute or raw reconstituted absolute with an alcohol is about 1:3.

16. The product as claimed in claim 14, wherein the ratio of the synthetic absolute or raw reconstituted absolute with an alcohol is at most 1:10.

17. The product as claimed in claim 14, wherein the alcohol used for mixing the synthetic absolute or raw reconstituted absolute is isopropyl alcohol.

18. The product as claimed in claim 14, wherein the freezing of solution in step (b) is carried at −20° C.

19. The product as claimed in claim 14, wherein the freezing of solution in step (b) is carried for at least 30 minutes.

20. The product as claimed in claim 14, wherein the propylene cloth is 500 mesh cloth.

21. The product as claimed in claim 14, wherein a boiler is used to provide the heat for boiling the solution in the alcohol extraction unit.

22. The product as claimed in claim 14, wherein the solution in step (e) is allowed to stand for 48 to 72 hours.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1: Shows the diagrams for the experimental set up for the alcoholic extraction of the reconstituted absolute.

[0021] FIG. 2: The commercial set up.

EXPERIMENTAL METHOD

[0022] For this method, a synthetic compound aimed to be reconstituted absolute is required. An alcohol extraction unit is required to extract the alcohol.

[0023] 1st step, the synthetic compound is mixed with 99% alcohol. This is generally done at a ratio depending on the viscosity and the density of the compound. The minimum ratio being 1 part compound and 3 parts alcohol whereas the maximum is 1 part compound and 10 arts of alcohol.

[0024] This will provide us with a solution partly or purely soluble in alcohol.

[0025] To test any deposition of the solution, this solution is kept at a temperature of −20 degree Celsius for about 30 minutes. The duration again depends on the quantity of the solution. If the quantity is more, the duration is more.

[0026] The above step is taken to allow the alcohol to extract all the alcohol soluble substances from the compound.

[0027] After freezing the solution for a duration of time under −20 degree Celsius, the obtained solution is either soluble or partially soluble. To sieve out all the non soluble matter, the solution is made to go through a polypropylene cloth.

[0028] All the non soluble matter is not required. This is usually less than 10% of the compound. The cloth strains all the non soluble matter. This loss of material is one of the losses in this method, a necessary one.

[0029] After sieving the solution, we obtain an alcohol soluble substance, crystal clear percolate, which is still with alcohol mixed in it that is the required NNA+ product along with alcohol.

[0030] We need to separate this alcohol to obtain the desired product. This done by transferring the solution in an alcohol extraction unit.

[0031] This alcohol extraction unit boils this solution in a glass vessel under controlled heat and vacuum. Water is usually the best approach to provide the heat.

[0032] Alcohol, being a solvent, with a low boiling point of 78 degree Celsius, this boiling point reduces in a solution. The alcohol usually begins to evaporate at a temperature around 60 degrees. The temperature increases to 80 degrees and now water along with alcohol is separated out. Till the temperature is increased to about 110 degree Celsius, all the water is extracted and the required material is left. To increase the rate of the process vacuum is required sometimes.

[0033] The material in the glass vessel is the required alcohol soluble reconstituted absolute called NNA+. The GCMS analysis report is shown in Table 2.

[0034] This NNA+ is made to stand and settle for 48 to 72 hours to mature. After the NNA+ is mature then it is transferred for evaluation.

[0035] The evaluation shows that the NNA+ is better than the original compound organoleptically.

[0036] Evaluation Example

[0037] Oudh Makkaj NNA

[0038] Organoleptic Properties:

[0039] Colour/Appearance: Dark brown viscous liquid.

[0040] Odour: Sharp woody, Sweet balsamic, somewhat harsh.

[0041] Taste: Bitter taste.

[0042] Solubility: Not entirely soluble in Alcohol

[0043] Oudh Makkaj NNA+

[0044] Organoleptic Properties:

[0045] Colour/Appearance: Dark brown clear viscous liquid.

[0046] Odour: Woody balsamic sweet rich odour of Agarwood.

[0047] Solubility: Soluble in alcohol

[0048] Taste: Bitter taste.

[0049] Commercial Method

[0050] Similarly to the experimental method, the commercial method starts with the raw reconstituted absolute. The quantity is more than the experiment sample. Let us say the quantity is a 25 kilo grams.

[0051] The alcohol is used in this method is Iso Propyl Alcohol. The reasons behind using Iso Propyl Alcohol are that this alcohol is commercially viable, feasible and safer than pure ethyl alcohol.

[0052] The method is as follows:

[0053] First, we mix the reconstituted absolute with Iso Propyl Alcohol at a ratio of 1:3. The ratio depends on the viscosity and the quantity of the raw material.

[0054] Secondly, this solution is allowed to rest under −20 degree Celsius for no less than 1 hour.

[0055] After decantation of the non soluble matter, this material is put through a sieve. After sieving, the non alcohol soluble matter is separated.

[0056] The solution is transferred to an alcohol extraction unit where this solution is kept at a high temperature and vacuum to extract the alcohol.

[0057] After 3 to 4 hours of extraction, this solution is allowed to stand for 48 to 72 hours to mature.

[0058] After maturity, the commercial NNA+ is ready to be shipped.

[0059] Losses

[0060] Loss of insoluble matter.

[0061] Because of the physical property of an absolute to be alcohol soluble, the non alcohol soluble matter is removed through freezing and sieving. This improved the odour profile of the final product as well. This purely depends on the composition of the reconstituted raw absolute and this is generally constant regardless of the quantity of a specific material.

[0062] Handling Losses

[0063] Transferring of material from one unit to another unit or tank leaves a handling loss. The percentage of handling loss is less for higher quantities.

Tables and Diagrams

[0064]

TABLE-US-00001 TABLE 1 S. No. Oudh Makkaj NNA Percentage 1 Alpha Pinene 0.11 2 Beeta Pinene 0.24 3 Benzyl Acetone 6.53 4 Alpha Copaene 0.52 5 Cyperene 1.18 6 Alpha Gurjunene 24.58 7 Alpha Santalene 1.72 8 Calarene 5.01 9 Allo Aromadendrene 6.76 10 Longipinene 4.76 11 Zingiberene 0.76 12 Valencene 0.95 13 Beta Bisabolene 2.24 14 Beta Himachelene 0.24 15 Elemol 2.79 16 Delta Gurjunene 2.86 17 Gaama Eudesmol 2.24 18 Valerianol 11.6 19 Eicosane 3.34

TABLE-US-00002 TABLE 2 S. No. Oudh Makkaj NNA+ Percentage 1 Alpha Pinene 0 2 Beeta Pinene 0.04 3 Benzyl Acetone 6.14 4 Alpha Copaene 0.48 5 Cyperene 1.13 6 Alpha Gurjunene 22.2 7 Alpha Santalene 0 8 Calarene 4.4 9 Allo Aromadendrene 6.78 10 Longipinene 4.43 11 Zingiberene 0.8 12 Valencene 0.95 13 Beta Bisabolene 2.48 14 Beta Himachelene 0 15 Elemol 3.2 16 Delta Gurjunene 0 17 Gaama Eudesmol 2.76 18 Valerianol 10.76 19 Eicosane 3.09