Method of preparing aroma particles
View Patent ↗The invention relates to vitreous aroma particles and the preparation thereof, as well as to the use thereof in foods, consumer articles and pharmaceuticals.
1. A method of preparation of aroma particles, comprising:
extrusion of an aromatized melt followed by die-face pelletization,
discharge of the melt from the extruder by way of an opening, and
comminution of the melt while still in an unsolidified state, said comminution producing a plurality of aroma particles, wherein a matrix of said aroma particles comprises
from 20 to 80 wt. % carbohydrate polymers having an average molecular weight greater than 1000, and
from 0.5 to 5 wt. % glucose, wherein said weight percentages are based on the total weight of the matrix.
2. The method according to claim 1 , wherein said matrix comprises from 45 to 70 wt. % carbohydrate polymers having an average molecular weight greater than 1000.
3. The method according to claim 1 , wherein said matrix comprises an emulsifier.
4. The method according to claim 1 , wherein said plurality of aroma particles have a glass transition temperature within the range 30 to 100° C.
5. The method according to claim 1 , wherein said plurality of aroma particles formed during said comminution comprise less than 5 wt-% fines less than 0.8 mm.
6. The method according to claim 1 , wherein said plurality of aroma particles formed during said comminution comprise less than 5 wt-% fines less than 0.5 mm.
7. The method according to claim 1 , wherein surfaces of the aroma particles are substantially free of an oily film.
8. The method according to claim 1 , wherein said extrusion step comprises adding said matrix and an aroma to an extruder separately.
9. The method according to claim 8 , wherein said aroma is a liquid aroma.
10. The method according to claim 8 , wherein the aroma is added in a cooling zone following a heating zone.
11. The method according to claim 8 , wherein said plurality of aroma particles include aroma in an amount ranging from 0.5 to 25 wt-% based on the total weight of the aroma particles.
12. The method according to claim 8 , wherein said carbohydrate polymer is a maltodextrin and/or glucose syrup.
13. The method according to claim 3 , wherein said emulsifier is a monoglyceride.
14. The method according to claim 13 , wherein said monoglyceride is present in an amount ranging from 0.5 to 3 wt-% based on the total weight of the aroma particles.
15. The method according to claim 1 , wherein the matrix comprises 30 to 70 wt. % carbohydrate polymers having an average molecular weight greater than 1000.
16. The method according to claim 15 , wherein the matrix further comprises 30 to 70 wt-% water-soluble compounds having molecular weights within the range of 90 to 950.
17. The method according to claim 1 , wherein the matrix further comprises 30 to 70 wt-% water-soluble compounds having molecular weights within the range of 90 to 950.
18. The method according to claim 1 , wherein said plurality of aroma particles formed during said comminution have diameters in the range of 0.1 to 5 mm, lengths in the range of 0.1 to 10 mm, and comprise less than 5 wt-% fines less than 0.8 mm.
19. The method according to claim 1 , wherein said plurality of aroma particles formed during said comminution have diameters in the range of 0.2 to 2.5 mm, lengths in the range of 0.2 to 3 mm, and comprise less than 5 wt-% fines less than 0.5 mm.