Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal
Pangasius (Pangasianodon hypophthalmus) is a commonly farmed fish in ponds in Bangladesh but its yellow flesh color creates a barrier for export. Here, we investigated if feed ingredients and environmental parameters might impact yellow tainting of the flesh. In experimental feeds, maize (a typical...
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| Format: | Article |
| Language: | English |
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Istanbul University Press
2021-10-01
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| Series: | Aquatic Sciences and Engineering |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/1514218 |
| _version_ | 1797272019892436992 |
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| author | Muhammad Razzak Seikh Islam Mohammad Haque Emranul Ahsan Louise Schlüter Raju Podduturi Niels Jorgensen |
| author_facet | Muhammad Razzak Seikh Islam Mohammad Haque Emranul Ahsan Louise Schlüter Raju Podduturi Niels Jorgensen |
| author_sort | Muhammad Razzak |
| collection | DOAJ |
| description | Pangasius (Pangasianodon hypophthalmus) is a commonly farmed fish in ponds in Bangladesh but its yellow flesh color creates a barrier for export. Here, we investigated if feed ingredients and environmental parameters might impact yellow tainting of the flesh. In experimental feeds, maize (a typical ingredient in commercial feeds) was replaced by soybean meal, and frequent exchange of pond water was introduced. Chemical analyses showed that the commercial feed was high in carotenoids (lutein, zeaxanthin and β-carotene; 18.8 mg/kg) as compared to the experimental feeds (≤1 mg carotenoids/kg). After feeding the fish commercial and experimental feeds for 9 months, the content of total carotenoids in the flesh was reduced by 48% to 64% and visual yellowness by up to 47% by the experimental feeds. Weekly or biweekly water exchange in combination with the experimental feeds further reduced the yellow coloration to 22% relative to fish given commercial feed and without water exchange. Our study demonstrates that pangasius with white flesh can be produced in Bangladesh by combining feeds low in pigments with frequent water exchange. |
| first_indexed | 2024-03-07T14:18:26Z |
| format | Article |
| id | doaj.art-72f4bbd8e2c344e0b05e94f105e6e6b5 |
| institution | Directory Open Access Journal |
| issn | 2602-473X |
| language | English |
| last_indexed | 2024-03-07T14:18:26Z |
| publishDate | 2021-10-01 |
| publisher | Istanbul University Press |
| record_format | Article |
| series | Aquatic Sciences and Engineering |
| spelling | doaj.art-72f4bbd8e2c344e0b05e94f105e6e6b52024-03-06T10:10:12ZengIstanbul University PressAquatic Sciences and Engineering2602-473X2021-10-013641932014Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for RemovalMuhammad Razzak0Seikh Islam1Mohammad Haque2Emranul Ahsan3Louise Schlüter4Raju Podduturi5Niels Jorgensen6Patuakhali Science and Technology UniversityPatuakhali Science and Technology UniversityBangladesh Agricultural UniversityBangabandhu Sheikh Mujibur Rahman Agricultural UniversityDHI CompanyUniversity of CopenhagenUniversity of CopenhagenPangasius (Pangasianodon hypophthalmus) is a commonly farmed fish in ponds in Bangladesh but its yellow flesh color creates a barrier for export. Here, we investigated if feed ingredients and environmental parameters might impact yellow tainting of the flesh. In experimental feeds, maize (a typical ingredient in commercial feeds) was replaced by soybean meal, and frequent exchange of pond water was introduced. Chemical analyses showed that the commercial feed was high in carotenoids (lutein, zeaxanthin and β-carotene; 18.8 mg/kg) as compared to the experimental feeds (≤1 mg carotenoids/kg). After feeding the fish commercial and experimental feeds for 9 months, the content of total carotenoids in the flesh was reduced by 48% to 64% and visual yellowness by up to 47% by the experimental feeds. Weekly or biweekly water exchange in combination with the experimental feeds further reduced the yellow coloration to 22% relative to fish given commercial feed and without water exchange. Our study demonstrates that pangasius with white flesh can be produced in Bangladesh by combining feeds low in pigments with frequent water exchange.https://dergipark.org.tr/tr/download/article-file/1514218pangasiusyellow fleshwater qualityfeed compositionmaizecarotenoids |
| spellingShingle | Muhammad Razzak Seikh Islam Mohammad Haque Emranul Ahsan Louise Schlüter Raju Podduturi Niels Jorgensen Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal Aquatic Sciences and Engineering pangasius yellow flesh water quality feed composition maize carotenoids |
| title | Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal |
| title_full | Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal |
| title_fullStr | Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal |
| title_full_unstemmed | Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal |
| title_short | Yellow Tainting of Flesh in Pangasius (Pangasianodon hypophthalmus):Origin of the Color and Procedures for Removal |
| title_sort | yellow tainting of flesh in pangasius pangasianodon hypophthalmus origin of the color and procedures for removal |
| topic | pangasius yellow flesh water quality feed composition maize carotenoids |
| url | https://dergipark.org.tr/tr/download/article-file/1514218 |
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