Processes for making dehydrated starch ingredients
Described is an improved emulsifier system suitable for use in making dehydrated starch ingredients. Also disclosed are a process for making the dehydrated ingredients using the improved emulsifier systems, doughs made using the dehydrated ingredients and the process for making those doughs, and food products containing the dehydrated ingredients.
1. A process for making dehydrated potato ingredients comprising the steps of:
(a) cooking potato pieces;
(b) forming the cooked potato pieces into a potato mash;
(c) drum drying the potato mash at a drum temperature of from about 121° C. to about 191° C. to provide dehydrated potato ingredients as a sheet;
(d) optionally comminuting the dehydrated sheet; and
(e) adding from about 0.005% to about 0.1% of an emulsifier system just prior to step (b);
wherein the emulsifier system is alpha-stable and comprises a mixture of (i) a polyglycerol ester having a polyglycerol backbone of from 2 to about 10 glycerol units wherein not more than about 40% of the hydroxyl groups of the polyglycerol are esterified with fatty acids (PGE), (ii) a DATEM, and (iii) lecithin.
2. A process according to claim 1 wherein at least about 80% of the PGEs, by weight, have a polyglycerol backbone of from 2 to about 8 glycerol units.
3. A process according to claim 1 wherein at least about 80% of the PGEs, by weight, have a polyglycerol backbone of from 2 to about 5 glycerol units.
4. A process according to claim 3 wherein at least about 80% of the PGEs, by weight, have a polyglycerol backbone of 2 or 3 glycerol units.
5. A process according to claim 1 wherein from about 20% to about 35% of the hydroxyl groups of the polyglycerol are esterified with fatty acids.
6. A process according to claim 1 wherein at least about 80% of the ester groups are derived from saturated fatty acids.
7. A process according to claim 6 wherein the ester groups are derived from C 16 fatty acids, C 18 fatty acids, or a mixture thereof.
8. A process according to claim 1 wherein the emulsifier system contains no more than about 15% free polyglycerol.
9. A process according to claim 1 wherein the emulsifier system comprises a material selected from the group consisting of 2-1-P, 2-1-S, 3-1-P, 3-1-S,4-1-P, 4-1-S, and mixtures thereof.
10. A process according to claim 1 wherein the emulsifier system further comprises monoglyceride.
11. A process according to claim 10 wherein the ratio of PGEs to monoglyceride is from about 9:1 to about 1:9.
12. A process according to claim 11 wherein the emulsifier system comprises diglycerol monoester, triglycerol monoester or a mixture thereof.
13. A process according to claim 12 wherein the emulsifier system comprises diglycerol monoester and triglycerol monoester and wherein the diglycerol monoester and triglycerol monoester together comprise at least about 50% of the total weight of the emulsifier system.
14. A dough composition comprising:
(a) from about 35% to about 85% of a starch-based flour comprising a dehydrated ingredient prepared according to claim 11 ;
(b) from about 15% to about 50% added water; and
(c) optionally a dough emulsifier.
15. A process for making a fabricated snack comprising the steps of:
(a) forming the dough composition of claim 14 into a sheet;
(b) cutting snack pieces from the sheet; and
(c) frying the snack pieces in an oil.