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Virginia Tech

Measurement of Thermal Properties of Seafood

Abstract

dc:description.abstract

Thermal properties of ten different seafood were measured in this research. They included bluefish (<i>Pomatomus saltatrix</i>), croaker (<i>Micropogonias undulatus</i>), spanish mackerel (<i>Scomberomorus maculatus</i>), pink salmon (<i>Oncorhynhus gorbuscha</i>), black seabass (<i>Atractoscion nobilis</i>), spot (<i>Leiostomus xanthurus</i>), shrimp(<i>Pandalus borealis</i>), tilapia (<i>Tilapia aurea</i>), grey sea trout(</i>Cynoscion regalis</i>), and yellow fin tuna (<i>Thunnus albacares</i>) (Wheaton, et al. 1985). Thermal properties measured were thermal conductivity, thermal diffusivity, and specific heat from 5 to 30<sup>o</sup>C. Enthalpy was measured from -40 to 30<sup>o</sup>C. Moisture and fat content were measured. Thermal conductivity and thermal diffusivity were measured by a rapid transient technique using a bead thermistor probe. Specific heat and enthalpy were measured using a differential scanning calorimeter. Moisture content and fat content were measured by the AOAC specified oven dry method and ether extraction method, respectively. The measured thermal properties agreed well with the scarcely available literature values. They were then statistically correlated with moisture and fat content. Based on statistical analysis, mathematical models relating thermal properties and composition were proposed and compared with the models available in the literature. Models for thermal conductivity and specific heat were recommended to predict these properties of meats and fish with similar composition.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Biological Systems Engineering
Department dc:contributor.department
Biological Systems Engineering
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
1997

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Radhakrishnan, Sudhaharini
Chair dc:contributor.committeechair
  • Diehl, Kenneth C.
Committee members dc:contributor.committeemember
  • Perumpral, John V.
  • Hackney, Cameron Raj
  • Haugh, C. Gene

Subjects

dc:subject × 4

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
etd-61397-204256
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/36834

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Radhakrishnan, Sudhaharini. Measurement of Thermal Properties of Seafood. masters thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36834