Exploration of the use of NIR reflectance spectroscopy to distinguish and measure attributes of conditioned and cooked shrimp (Pandalus borealis)

Shrimp (Pandalus borealis) from a commercial freezer trawler were thawed then subjected to diwerent treatments (conditioning) in 20 kg lots by holding them in ice, water and brine of various salt concentrations before being steam-cooked and peeled. Various parameterssuch as pH, peelability, yield, s...

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Bibliographic Details
Published in:LWT - Food Science and Technology
Main Authors: Brodersen, K, Bremner, H A
Format: Article in Journal/Newspaper
Language:English
Published: Academic Press 2001
Subjects:
NIR
Online Access:https://doi.org/10.1006/fstl.2001.0802
Description
Summary:Shrimp (Pandalus borealis) from a commercial freezer trawler were thawed then subjected to diwerent treatments (conditioning) in 20 kg lots by holding them in ice, water and brine of various salt concentrations before being steam-cooked and peeled. Various parameterssuch as pH, peelability, yield, salt content, dry matter, and water holding capacity were measured. Near infrared (NIR) spectra were obtained, on samples of whole shrimp and of minced yesh from the various treatments. Analysis of the spectral and compositional, treatment and processing data using principal components and partial least squares indicated that NIR could be used to distinguishbetween frozen and thawed material, between salt content, pH in the yesh, cooking period (temperature) of either whole or minced shrimp, or both. The NIR data could not be used to determine peelability, water holding capacity, dry matter or salt content in either whole or minced shrimp.