Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe
ABSTRACT: There are good markets for mature pollock roe; however, immature pollock roe is underutilized. The physical and nutritional properties of immature pollock roe (IPR) have not been reported, which limits its potential use as a food ingredient. The objective of this study was to evaluate the...
Published in: | Journal of Food Science |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1750-3841.2007.00396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1750-3841.2007.00396.x |
id |
crwiley:10.1111/j.1750-3841.2007.00396.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1750-3841.2007.00396.x 2024-09-15T18:16:55+00:00 Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe Bechtel, P.J. Chantarachoti, J. Oliveira, A.C.M. Sathivel, S. 2007 http://dx.doi.org/10.1111/j.1750-3841.2007.00396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1750-3841.2007.00396.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Food Science volume 72, issue 5 ISSN 0022-1147 1750-3841 journal-article 2007 crwiley https://doi.org/10.1111/j.1750-3841.2007.00396.x 2024-06-25T04:16:46Z ABSTRACT: There are good markets for mature pollock roe; however, immature pollock roe is underutilized. The physical and nutritional properties of immature pollock roe (IPR) have not been reported, which limits its potential use as a food ingredient. The objective of this study was to evaluate the physical and nutritional properties of immature pollock roe and soluble and insoluble protein powders made from the immature roe. IPR samples were obtained during the spring pollock harvest from a seafood processing plant in Kodiak, Alaska. Soluble (SP) and insoluble protein (IP) fractions were produced by heating IPR, separating by centrifugation and freeze drying. The protein contents of freeze‐dried IPR, SP, and IP were 81.7%, 63.2%, and 83.0%, respectively. The amino acid contents of IPR and IP were similar except for isoleucine and valine. However, the amino acid contents of IPR and IP were different from values for SP. Lipid contents of IPR, SP, and IP were 9.2%, 9.3%, and 11.1%, respectively. Palmitic acid (C16:0; 21.2%), DHA (C22:6ω3; 21.2%), and EPA (C20:5ω3; 19.0%) were the 3 most abundant fatty acids in fresh IPR. Fat adsorption capacity value for SP was significantly higher than IPR and IP ( P < 0.05). SDS electrophoresis indicated a major protein band with molecular weight of 103 KDa in all samples. Results indicate that IPR can be utilized to make a number of unique food ingredients with good nutritional characteristics and functional properties. Article in Journal/Newspaper Kodiak Theragra chalcogramma Alaska Wiley Online Library Journal of Food Science 72 5 S338 S343 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT: There are good markets for mature pollock roe; however, immature pollock roe is underutilized. The physical and nutritional properties of immature pollock roe (IPR) have not been reported, which limits its potential use as a food ingredient. The objective of this study was to evaluate the physical and nutritional properties of immature pollock roe and soluble and insoluble protein powders made from the immature roe. IPR samples were obtained during the spring pollock harvest from a seafood processing plant in Kodiak, Alaska. Soluble (SP) and insoluble protein (IP) fractions were produced by heating IPR, separating by centrifugation and freeze drying. The protein contents of freeze‐dried IPR, SP, and IP were 81.7%, 63.2%, and 83.0%, respectively. The amino acid contents of IPR and IP were similar except for isoleucine and valine. However, the amino acid contents of IPR and IP were different from values for SP. Lipid contents of IPR, SP, and IP were 9.2%, 9.3%, and 11.1%, respectively. Palmitic acid (C16:0; 21.2%), DHA (C22:6ω3; 21.2%), and EPA (C20:5ω3; 19.0%) were the 3 most abundant fatty acids in fresh IPR. Fat adsorption capacity value for SP was significantly higher than IPR and IP ( P < 0.05). SDS electrophoresis indicated a major protein band with molecular weight of 103 KDa in all samples. Results indicate that IPR can be utilized to make a number of unique food ingredients with good nutritional characteristics and functional properties. |
format |
Article in Journal/Newspaper |
author |
Bechtel, P.J. Chantarachoti, J. Oliveira, A.C.M. Sathivel, S. |
spellingShingle |
Bechtel, P.J. Chantarachoti, J. Oliveira, A.C.M. Sathivel, S. Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
author_facet |
Bechtel, P.J. Chantarachoti, J. Oliveira, A.C.M. Sathivel, S. |
author_sort |
Bechtel, P.J. |
title |
Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
title_short |
Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
title_full |
Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
title_fullStr |
Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
title_full_unstemmed |
Characterization of Protein Fractions from Immature Alaska Walleye Pollock ( Theragra chalcogramma) Roe |
title_sort |
characterization of protein fractions from immature alaska walleye pollock ( theragra chalcogramma) roe |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1750-3841.2007.00396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1750-3841.2007.00396.x |
genre |
Kodiak Theragra chalcogramma Alaska |
genre_facet |
Kodiak Theragra chalcogramma Alaska |
op_source |
Journal of Food Science volume 72, issue 5 ISSN 0022-1147 1750-3841 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1750-3841.2007.00396.x |
container_title |
Journal of Food Science |
container_volume |
72 |
container_issue |
5 |
container_start_page |
S338 |
op_container_end_page |
S343 |
_version_ |
1810454911730581504 |