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1. WO2016146496 - TWO-STEP EMULSIFICATION PROCESS FOR PREPARING INFANT FORMULA

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CLAIMS

1. A process for preparing a lipid and protein component-containing composition, which is an infant or follow-on formula or a growing up milk and which comprises lipid globules, comprising the steps of:

a) providing an aqueous phase with a dry matter content of 5 to 75 wt.% (based on total weight of the aqueous phase), which comprises at least one protein component,

b) providing a liquid lipid phase, which comprises at least one lipid and

c) carrying out a first homogenization step by homogenizing the lipid phase with the aqueous phase in a ratio of 3 to 50 % (w/w) so as to obtain a first lipid and protein component- containing composition comprising lipid globules, wherein at least 10 vol.-% of the lipid globules have a diameter of >12 μιη and/or wherein the lipid globules have a volume-weighted mode diameter from 5 to 25 μιη,

d) carrying out a second homogenization step by homogenizing the first lipid and protein component-containing composition obtained in step c) with an atomizer, wherein the particle size of the lipid globules obtained in step c) is reduced so as to obtain a second lipid and protein component-containing composition comprising lipid globules, wherein less than 10 vol.-% of the lipid globules have a diameter of >12 μιη and/or wherein the lipid globules have a volume- weighted mode diameter from 2.5 to 7 μιη.

2. The process according to claim 1, wherein the volume-weighted mode diameter of the lipid globules obtained in step c) is from 5 to 25 μιη and wherein at least 10 vol.-% of the lipid globules have a diameter of > 12 μιη.

3. The process according to any one of claims 1 or 2, wherein less than 20 vol.-% of the lipid globules obtained in step c) have a diameter from 3 to 6 μιη.

4. The process according to any one of the preceding claims, wherein at least 35 vol.-% of the lipid globules obtained in step c) have a diameter of at least 5 μιη.

5. The process according to any one of the preceding claims, wherein less than 7 vol.-% of the lipid globules obtained in step c) have a diameter from 1 to 2 μιη.

6. The process according to any one of the preceding claims, wherein the volume-weighted mode diameter of the lipid globules obtained in step d) is from 2.5 to 7 μιη and wherein less than 10 vol.-% of the lipid globules have a diameter of > 12 μιη.

7. The process according to any one of the preceding claims, wherein at least 15 vol.-% of the lipid globules obtained in step d) have a diameter from 3 to 6 μιη.

8 The process according to any one of the preceding claims, wherein less than 35 vol.-% of the lipid globules obtained in step d) have a diameter of at least 5 μιη.

9. The process according to any one of the preceding claims, wherein at least 7 vol.-% of the lipid globules obtained in step d) have a diameter from 1 to 2 μιη.

10. The process according to any one of the preceding claims, wherein the first lipid and protein component-containing composition comprising lipid globules obtained in step c) comprises at least 10 vol.-% of lipid globules with a diameter > 12 μιη, has a volume-weighted mode diameter of the lipid globules from 5 to 25 μιη, comprises less than 7 vol.-% of lipid globules with a diameter from 1 to 2 μιη, comprises less than 20 vol.-% of lipid globules with a diameter from 3 to 6 and at least 35 vol.-% of lipid globules have a diameter of at least 5 μιη and wherein the second lipid and protein component-containing composition comprising lipid globules obtained in step d) comprises less than 10 vol.-% of lipid globules with a diameter of > 12 μιη, has a volume-weighted mode diameter of the lipid globules from 2.5 to 7 μιη, comprises at least 7 vol.-% of lipid globules with a diameter from 1 to 2 μιη, and comprises at least 20 vol.-% of lipid globules with a diameter from 3 to 6 and less than 35 vol.-% of lipid globules with a diameter of at least 5.

11. The process according to any one of the preceding claims, wherein the vol.-% of the lipid globules obtained in step c) with a diameter from 1 to 2 μιη is increased by at least 5% (percentage point) in step d) so as to obtain the second lipid and protein component-containing composition comprising lipid globules.

12. The process according to any one of the preceding claims, wherein the vol.-% of the lipid globules obtained in step c) with a diameter of > 12 μιη is reduced by at least 5% (percentage point) in step d) so as to obtain the second lipid and protein component-containing composition comprising lipid globules.

13. The process according to any one of the preceding claims, wherein the volume-weighted mode diameter of the lipid globules obtained in step c) is reduced by at least 2 μιη in step d) so as to obtain the second lipid and protein component-containing composition comprising lipid globules.

14. The process according to any one of the preceding claims, wherein the vol.-% of the lipid globules obtained in step c) with a diameter from 3 to 6 μιη is increased by at least 5% (percentage point) in step d) so as to obtain the second lipid and protein component-containing composition comprising lipid globules.

15. The process according to any one of the preceding claims, wherein the vol.-% of the lipid globules obtained in step c) with a volume of at least 5 μιη is reduced by at least 25% (percentage point) so as to obtain the second lipid and protein component-containing composition comprising lipid globules.

16. The process according to any one of the preceding claims, wherein the liquid lipid phase provided in step b) is premixed with the aqueous phase provided in step a) prior to mixing step c).

17. The process according to any one of the preceding claims, wherein the first homogenization step c) is carried out with a static mixer, an inline mixer, a rotor stator machine, a cavitator or by membrane emulsification.

18. The process according to any one of the preceding claims, wherein the atomizer is a pneumatic atomizer or a rotary atomizer.

19. The process according to claim 15, wherein the pneumatic atomizer is a two-fluid atomizer.

20. The process according to any one of the preceding claims, wherein immediately after or simultaneously to the second homogenization step a drying step is carried out.

21. The process according to any one of the preceding claims, wherein the second homogenization step d) is carried out as a spray-drying step so as to obtain a spray-dried lipid and protein component-containing composition comprising lipid globules.

22. The process according to any one of the preceding claims, wherein the protein component is selected from the group consisting of skim milk, whey, whey protein, whey protein isolate, whey protein hydrolysate, casein, casein hydrolysate and soy protein.

23. The process according to any one of the preceding claims, wherein the aqueous phase comprises at least one further component selected from the group consisting of digestible carbohydrates, preferably lactose, non-digestible carbohydrates, vitamins and minerals.

24. The process according to any one of the preceding claims, wherein the aqueous phase is provided with a dry matter content of 30 to 50 wt.-% (based on total weight of the aqueous phase).

25. The process according to any one of the preceding claims, wherein subsequent to step a) and prior to step c) the aqueous phase is sterilised or pasteurised.

26. The process according to any one of the preceding claims, wherein the aqueous phase, the lipid phase, or the aqueous and the lipid phase comprise polar lipids, in particular phospholipids in an amount of 0.5 to 20 wt.% (based on total lipid of the composition).

27. A lipid and protein component-containing composition being obtainable by a process according to any one of claims 1 to 26.

28. A lipid and protein component-containing composition comprising lipid globules which composition a) comprises less than 10 vol.-% of the lipid globules with a diameter of >12 μιη and/or is characterized by lipid globules with a volume-weighted mode diameter from 2.5 to 7 μιη and b) comprises at least 7 vol.-% of lipid globules with a diameter of 1 to 2 μιη and c) comprises at least 15 vol.-% of lipid globules with a diameter from 3 to 6 μιη, and d) comprises less than 35 vol.-% of lipid globules with a diameter of at least 5.