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Calculation of Required Hold Time of Aseptically Processed Low Acid Foods Containing Particulates Utilizing the Ball Method
Author(s) -
DAIL ROBERT
Publication year - 1985
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1985.tb10570.x
Subject(s) - ball (mathematics) , cylinder , slab , thermal conduction , particulates , spheres , mathematics , cube (algebra) , materials science , chemistry , mathematical analysis , physics , composite material , geometry , engineering , structural engineering , organic chemistry , astronomy
Analytical solutions for conduction heat transfer into infinite slab and infinite cylinder were manipulated to give heating equations for a cube and a finite cylinder. Calculated values of j and f h from these equations were substituted into Ball's formula to calculate required hold time for low acid foods containing particulates. This simplifies the calculations normally involved and eliminates the requirement of a computer. However, the method has a limited range of application due to assumptions made in the derivation of Ball's Formula. The assumptions of Ball's Formula relative to aseptic systems are discussed, and a sample calculation is included.