Abstract
Spray-dried probiotic milk powder was produced at pilot scale from 300 L of 20% (w/v) reconstituted skim milk containing a rifampicin resistant variant of the probiotic Lactobacillus paracasei NFBC 338 (Rifr). During powder manufacture, air inlet and outlet temperatures of 175°C and 68°C, respectively, were used, which yielded a probiotic survival of 84.5%. The powder, which contained 1 × 109 cfu g-1 of Lb. paracasei NFBC 338 Rifr was used as an adjunct inoculum (at 0.1% w/v) during probiotic Cheddar cheese manufacture. Probiotic numbers were 2 × 107 cfu g-1 in the cheese on day 1 and grew to 7.7 × 107 cfu g-1 after 3 months of ripening, without adversely affecting cheese quality. The data demonstrate that probiotic spray-dried powder is a useful means of probiotic addition to dairy products, as this example for Cheddar cheese manufacture shows.
Original language | English |
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Pages (from-to) | 749-756 |
Number of pages | 8 |
Journal | International Dairy Journal |
Volume | 12 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2002 |
Externally published | Yes |
Keywords
- Cheddar cheese
- Lactobacillus
- Probiotic
- Spray drying