Claims
- 1. A method for improving the stability of Vitamin D in a liquid nutritional product which contains hydrolyzed protein or free amino acids as a nitrogen source, the method comprising the steps of:
- (a) providing a liquid nutritional product containing Vitamin D;
- (b) preliminary heat treating the liquid nutritional product;
- (c) adding Vitamin C before or after preliminary heat treating such that the concentration of Vitamin C is at least 300 mg/l during the shelf life of the liquid nutritional product; and
- (d) adding cystine to the liquid nutritional product after the completion of preliminary heat treating the liquid nutritional product.
- 2. The method according to claim 1 which further comprises the step of adding an emulsifier to the liquid nutritional product prior to preliminary heat treating the liquid nutritional product, the emulsifier comprising a diacetyltartaric acid ester of monoglycerides and diglycerides.
- 3. A method for improving the stability of Vitamin D in a liquid nutritional product for infants which contains hydrolyzed protein or free amino acids as a nitrogen source, the method comprising the steps of:
- (a) providing a liquid nutritional product containing Vitamin D and a nitrogen source selected from the group consisting of hydrolyzed proteins and free amino acids;
- (b) preliminary heat treating the liquid nutritional product;
- (c) adding Vitamin C before or after preliminary heat treating such that the concentration of Vitamin C is at least 300 mg/l during the shelf life of the liquid nutritional product; and
- (d) adding cystine to the liquid nutritional product after the completion of preliminary heat treating the liquid nutritional product.
- 4. The method according to claim 3 which further comprises the step of adding an emulsifier to the liquid nutritional product prior to preliminary heat treating the liquid nutritional product, the emulsifier comprising a diacetyltartaric acid ester of monoglycerides and diglycerides.
Parent Case Info
This is a Divisional of application Ser. No. 08/061,885 filed May 14, 1993, now U.S. Pat. No. 5,382,439.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2777797 |
Hochberg et al. |
Jan 1957 |
|
4935257 |
Yajima |
Jun 1990 |
|
5153012 |
Ohtaka et al. |
Oct 1992 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
61885 |
May 1993 |
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