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Assessment of the Effect of Fluid‐to‐particle Heat Transfer Coefficient on Microbial and Nutrient Destruction during Aseptic Processing of Particulate Food
Author(s) -
Palazoglu T.K.,
Sandeep K.P.
Publication year - 2002
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.1365-2621.2002.tb09591.x
Subject(s) - overheating (electricity) , aseptic processing , particulates , nutrient , residence time (fluid dynamics) , particle (ecology) , chemistry , environmental science , mechanics , pulp and paper industry , materials science , food science , biology , ecology , physics , geotechnical engineering , organic chemistry , engineering , quantum mechanics
A computer program was developed to determine the effect of fluid‐to‐particle heat transfer coefficient (h fp ) on microbial and nutrient destruction during aseptic processing of fluid‐particle mixtures. According to the simulation results, an increase in h fp did not improve the nutrient retention even though it reduced the time of heating required to reach a target lethality. It was found that even if the process were designed using the most conservative h fp , one would still obtain a high product quality for particles of small sizes. Quality losses were found to be more pronounced for larger particles. Ensuring a narrow residence time distribution of particles within the holding tube can minimize overheating and unnecessary loss of nutrients.