Color Change of the Snapper (Pagrus auratus) and Gurnard (Chelidonichthys kumu) Skin and Eyes during Storage: Effect of Light Polarization and Contact with Ice
Ten gurnard and 10 snapper were stored on ice. One side always contacted the ice; the other side was always exposed to air. At different intervals for up to 12 d, the fish were placed in a light box, and the images of both sides were taken using polarized and nonpolarized illumination. Image analysi...
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Veröffentlicht in: | Journal of food science 2014-12, Vol.79 (12), p.E2456-E2462 |
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description | Ten gurnard and 10 snapper were stored on ice. One side always contacted the ice; the other side was always exposed to air. At different intervals for up to 12 d, the fish were placed in a light box, and the images of both sides were taken using polarized and nonpolarized illumination. Image analysis resulted in average L*, a*, and b* values of skin, and average L* values of the eyes. The skin L* value of gurnard changed significantly over time while that of snapper was substantially constant. The a* and b* values of both fish decreased over time. The L* values of eyes were significantly lower for polarized images, and significantly lower for the side of fish exposed to air only. This may be a concern in quality evaluation methods such as QIM. The difference of colors between the polarized and nonpolarized images was calculated to quantify the reflection off the surface of fish. For accurate measurement of surface color and eye color, use of polarized light is recommended. |
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One side always contacted the ice; the other side was always exposed to air. At different intervals for up to 12 d, the fish were placed in a light box, and the images of both sides were taken using polarized and nonpolarized illumination. Image analysis resulted in average L*, a*, and b* values of skin, and average L* values of the eyes. The skin L* value of gurnard changed significantly over time while that of snapper was substantially constant. The a* and b* values of both fish decreased over time. The L* values of eyes were significantly lower for polarized images, and significantly lower for the side of fish exposed to air only. This may be a concern in quality evaluation methods such as QIM. The difference of colors between the polarized and nonpolarized images was calculated to quantify the reflection off the surface of fish. 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One side always contacted the ice; the other side was always exposed to air. At different intervals for up to 12 d, the fish were placed in a light box, and the images of both sides were taken using polarized and nonpolarized illumination. Image analysis resulted in average L*, a*, and b* values of skin, and average L* values of the eyes. The skin L* value of gurnard changed significantly over time while that of snapper was substantially constant. The a* and b* values of both fish decreased over time. The L* values of eyes were significantly lower for polarized images, and significantly lower for the side of fish exposed to air only. This may be a concern in quality evaluation methods such as QIM. The difference of colors between the polarized and nonpolarized images was calculated to quantify the reflection off the surface of fish. For accurate measurement of surface color and eye color, use of polarized light is recommended.</description><subject>Animals</subject><subject>Chelidonichthys</subject><subject>Chelidonichthys kumu</subject><subject>Color</subject><subject>Contact</subject><subject>contact with ice</subject><subject>Exposure</subject><subject>Eye</subject><subject>eye color</subject><subject>Eyes</subject><subject>Eyes & eyesight</subject><subject>Fish</subject><subject>Food science</subject><subject>Food Storage - methods</subject><subject>gurnard</subject><subject>Ice</subject><subject>image analysis</subject><subject>Light</subject><subject>lighting</subject><subject>Pagrus</subject><subject>Pagrus auratus</subject><subject>Perciformes</subject><subject>Polarized light</subject><subject>Seafood</subject><subject>Skin</subject><subject>snapper</subject><subject>Snappers</subject><subject>Storage</subject><subject>storage time</subject><issn>0022-1147</issn><issn>1750-3841</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkk9v0zAYxiMEYt3gzA0scekO2fwndpLdUGjLUIFBmZC4WG8Tu_GaxsVOtJUvw1clabYeuAzLkmXr9zyv_foJglcEn5FunJOY45AlETkjVKTsSTA6nDwNRhhTGhISxUfBsfc3uN8z8Tw4orwjBKWj4E9mK-tQVkK9Ushq1JQKLWrYbpVD4ytYudYjaB00rT9FUBdo1roaXIHGWakqU9ja5GVT7jxat5v2FC3Wpt5zk53yqGidqVdo0VgHK3WBJlqrvOnrzM2qbNCVrcCZ39AYO6gyWzfQEbemKdFlrl4EzzRUXr28X0-C6-nke_YhnH-ZXWbv5mHOMWYhjbBgosipTiCJdZpSVuQiJVCA0iJfFrzQqWDLOE5iDkvQeQQioYpTXoDmS3YSjAffrbO_WuUbuTE-V1UFtbKtlySO-6aybj6KCk4iIkSE_wNlMReE4LhD3_6D3ti-09WeEoyQZF_7fKByZ713SsutMxtwO0mw7BMh-_-X_VXlPhGd4vW9b7vcqOLAP0SgA8QA3JpK7R7zkx-n7xcPzuEgNL5RdwchuLUUcfcu-ePzTE7Fp29ffwomk45_M_AarOyCZby8XlBMug8knKcJZX8BgB_Xkw</recordid><startdate>201412</startdate><enddate>201412</enddate><creator>Balaban, Murat O</creator><creator>Stewart, Kelsie</creator><creator>Fletcher, Graham C</creator><creator>Alçiçek, Zayde</creator><general>The Institute</general><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>FBQ</scope><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7QR</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>7X8</scope><scope>7TN</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>201412</creationdate><title>Color Change of the Snapper (Pagrus auratus) and Gurnard (Chelidonichthys kumu) Skin and Eyes during Storage: Effect of Light Polarization and Contact with Ice</title><author>Balaban, Murat O ; Stewart, Kelsie ; Fletcher, Graham C ; Alçiçek, Zayde</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5003-240636dc2f8a87f9923dc691adaef6cbd5df963b77875abafc4a682e525daf5b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Animals</topic><topic>Chelidonichthys</topic><topic>Chelidonichthys kumu</topic><topic>Color</topic><topic>Contact</topic><topic>contact with ice</topic><topic>Exposure</topic><topic>Eye</topic><topic>eye color</topic><topic>Eyes</topic><topic>Eyes & eyesight</topic><topic>Fish</topic><topic>Food science</topic><topic>Food Storage - methods</topic><topic>gurnard</topic><topic>Ice</topic><topic>image analysis</topic><topic>Light</topic><topic>lighting</topic><topic>Pagrus</topic><topic>Pagrus auratus</topic><topic>Perciformes</topic><topic>Polarized light</topic><topic>Seafood</topic><topic>Skin</topic><topic>snapper</topic><topic>Snappers</topic><topic>Storage</topic><topic>storage time</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Balaban, Murat O</creatorcontrib><creatorcontrib>Stewart, Kelsie</creatorcontrib><creatorcontrib>Fletcher, Graham C</creatorcontrib><creatorcontrib>Alçiçek, Zayde</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of food science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Balaban, Murat O</au><au>Stewart, Kelsie</au><au>Fletcher, Graham C</au><au>Alçiçek, Zayde</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Color Change of the Snapper (Pagrus auratus) and Gurnard (Chelidonichthys kumu) Skin and Eyes during Storage: Effect of Light Polarization and Contact with Ice</atitle><jtitle>Journal of food science</jtitle><addtitle>Journal of Food Science</addtitle><date>2014-12</date><risdate>2014</risdate><volume>79</volume><issue>12</issue><spage>E2456</spage><epage>E2462</epage><pages>E2456-E2462</pages><issn>0022-1147</issn><eissn>1750-3841</eissn><coden>JFDSAZ</coden><abstract>Ten gurnard and 10 snapper were stored on ice. One side always contacted the ice; the other side was always exposed to air. At different intervals for up to 12 d, the fish were placed in a light box, and the images of both sides were taken using polarized and nonpolarized illumination. Image analysis resulted in average L*, a*, and b* values of skin, and average L* values of the eyes. The skin L* value of gurnard changed significantly over time while that of snapper was substantially constant. The a* and b* values of both fish decreased over time. The L* values of eyes were significantly lower for polarized images, and significantly lower for the side of fish exposed to air only. This may be a concern in quality evaluation methods such as QIM. The difference of colors between the polarized and nonpolarized images was calculated to quantify the reflection off the surface of fish. For accurate measurement of surface color and eye color, use of polarized light is recommended.</abstract><cop>United States</cop><pub>The Institute</pub><pmid>25384622</pmid><doi>10.1111/1750-3841.12693</doi><tpages>7</tpages></addata></record> |
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subjects | Animals Chelidonichthys Chelidonichthys kumu Color Contact contact with ice Exposure Eye eye color Eyes Eyes & eyesight Fish Food science Food Storage - methods gurnard Ice image analysis Light lighting Pagrus Pagrus auratus Perciformes Polarized light Seafood Skin snapper Snappers Storage storage time |
title | Color Change of the Snapper (Pagrus auratus) and Gurnard (Chelidonichthys kumu) Skin and Eyes during Storage: Effect of Light Polarization and Contact with Ice |
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