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FREEZE-DRIED STARTER CONCENTRATES.

Author(s) : ROBINSON R. K.

Type of article: Article

Summary

PRODUCERS OF CHEDDAR AND SIMILAR CHEESES AND YOGURT HAVE EITHER PREPARED THEIR OWN CULTURES OF STREPTOCOCCUS CREMORIS AND LACTIS OR OBTAINED THEM FROM INDEPENDENT MANUFACTURERS, FOR INOCULATION OF BULK STARTER TANKS, OR FOR STARTER PRODUCTION. FREEZE-DRIED CONCENTRATES OF CULTURES WHICH CAN BE USED FOR DIRECT INOCULATION OF BULK STARTER TANKS ARE NOW AVAILABLE. ALTERNATIVE CULTURES ARE COMPARED. FROZEN CULTURES REQUIRE 77K (-196 DEG C) FOR LONG STORAGE, 253 TO 233K (-20 TO -40 DEG C) FOR SHORT STORAGE. FREEZE-DRIED CULTURE CONCENTRATES IN ALUMINIUM POUCHES FROM MANUFACTURER A CAN BE KEPT FOR FIVE TO SIX MONTHS AT 253 K. THOSE FROM MANUFACTURER B, WHICH ARE SUITABLE FOR DIRECT INOCULATION OF THE VAT, MAY BE STORED AT 280K (7 DEG C) IN A DOMESTIC REFRIGERATOR. DETAILED RESULTS OF TRIALS WITH THE LATTER ARE GIVEN. THE CULTURE MET COMMERCIAL REQUIREMENTS. THE QUALITY OF THE CHEESE WAS CONSISTENTLY HIGH. C.R.F.

Details

  • Original title: FREEZE-DRIED STARTER CONCENTRATES.
  • Record ID : 1982-1427
  • Languages: English
  • Source: Dairy Ind. int. - vol. 46 - n. 10
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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