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A Feeding Study to Assess Nutritional Quality and Safety of Surimi Wash Water Proteins Recovered by a Chitosan‐Alginate Complex
Author(s) -
Wibowo Singgih,
Savant Vivek,
Cherian Gita,
Savage Thomas F.,
Velazquez Gonzalo,
Torres J. Antonio
Publication year - 2007
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.1750-3841.2007.00291.x
Subject(s) - chitosan , chemistry , food science , methionine , casein , histidine , phenylalanine , lysine , centrifugation , amino acid , protein quality , biochemistry
Soluble proteins from surimi wash water (SWW) precipitated using a chitosan‐alginate (Chi‐Alg) complex and recovered by centrifugation were freeze‐dried. Analysis showed that SWW proteins (SWWP) had a crude protein content of 73.1% and a high concentration of essential amino acids, for example, 3% histidine, 9.4% lysine, 3.7% methionine, and 5.1% phenylalanine. In a rat‐feeding trial, SWWP as a single protein source showed higher ( P < 0.05) modified protein efficiency ratio and net protein ratio than the casein control. Blood chemistry analysis revealed no deleterious effect from the full protein substitution or the chitosan in SWWP. Therefore, this preliminary study revealed that proteins recovered from SWW using the Chi‐Alg complex could be used in feed formulations. They could be used for food production in countries where regulatory agencies allow the use of chitosan in the production of food ingredients.