Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi
Nutrition plays an important role in shaping the organoleptic properties of fish as key flavour compounds are principally sequestered from the diet. Conventional aquaculture feeds are primarily formulated to maximise somatic growth with little consideration given to the effect on organoleptic attrib...
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ftdeakinunifig:oai:figshare.com:article/20716108 2023-05-15T15:27:50+02:00 Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi Ben Jones R Smullen A G Carton 2016-03-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30135088 https://figshare.com/articles/journal_contribution/Flavour_enhancement_of_freshwater_farmed_barramundi_Lates_calcarifer_through_dietary_enrichment_with_cultivated_sea_lettuce_Ulva_ohnoi/20716108 unknown http://hdl.handle.net/10536/DRO/DU:30135088 https://figshare.com/articles/journal_contribution/Flavour_enhancement_of_freshwater_farmed_barramundi_Lates_calcarifer_through_dietary_enrichment_with_cultivated_sea_lettuce_Ulva_ohnoi/20716108 All Rights Reserved Zoology Aquaculture Flavour Functional feed Quality Dimethylsulfide Science & Technology Life Sciences & Biomedicine Fisheries Marine & Freshwater Biology DIMETHYL-BETA-PROPIOTHETIN BREAM SPARUS-AURATA FISH-OIL BROMOPHENOL CONTENT ATLANTIC COD GIANT CLAMS OCEAN FISH DIMETHYLSULFONIOPROPIONATE SULFIDE WILD Text Journal contribution 2016 ftdeakinunifig 2022-11-17T19:14:50Z Nutrition plays an important role in shaping the organoleptic properties of fish as key flavour compounds are principally sequestered from the diet. Conventional aquaculture feeds are primarily formulated to maximise somatic growth with little consideration given to the effect on organoleptic attributes such as flavour, taste and aroma. We assessed the efficacy of the marine macroalgae Ulva ohnoi to alter the organoleptic properties of cultured freshwater barramundi (Lates calcarifer) by feeding a short term finishing diet. Barramundi were finished on diets containing 0%, 10%, 20% and 30% of dried U. ohnoi for 7, 14 and 21 days. Following harvest the organoleptic properties of fish were subjected to human sensory assessment. The flavour of barramundi finished on diets containing ≥ 20% inclusion level of U. ohnoi was described as being more ‘desirable’, ‘sweeter’, and ‘rich and complex’ when compared to fish finished on a standard commercial rearing diet. Fish finished with U. ohnoi also developed a crab-like/seafood flavour and a cooked crab aroma, resulting in significant increases in these organoleptic attributes. Fillets were subsequently analysed for bromophenol compounds and dimethylsulfide. Bromophenols were not detected at any time in fillets of barramundi that were finished on either U. ohnoi or a standard commercial diet. However, dimethylsulfide was found to be more elevated (~ 8 fold) in fish fed U. ohnoi. Feeding cultured freshwater fish a diet containing the marine algae U. ohnoi was effective in altering the organoleptic profile of fillets, imparting a rich and complex seafood-like flavour. The potent flavour compound dimethylsulfide was associated with this change and appears to be a key flavour compound in this instance. The application of a finishing diet that enhances flavour and aroma properties pre-harvest would enable aquaculture growers to exert direct control over these properties. This is especially important for freshwater finfish species as growers could conceivably produce fish that ... Other Non-Article Part of Journal/Newspaper atlantic cod DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Zoology Aquaculture Flavour Functional feed Quality Dimethylsulfide Science & Technology Life Sciences & Biomedicine Fisheries Marine & Freshwater Biology DIMETHYL-BETA-PROPIOTHETIN BREAM SPARUS-AURATA FISH-OIL BROMOPHENOL CONTENT ATLANTIC COD GIANT CLAMS OCEAN FISH DIMETHYLSULFONIOPROPIONATE SULFIDE WILD |
spellingShingle |
Zoology Aquaculture Flavour Functional feed Quality Dimethylsulfide Science & Technology Life Sciences & Biomedicine Fisheries Marine & Freshwater Biology DIMETHYL-BETA-PROPIOTHETIN BREAM SPARUS-AURATA FISH-OIL BROMOPHENOL CONTENT ATLANTIC COD GIANT CLAMS OCEAN FISH DIMETHYLSULFONIOPROPIONATE SULFIDE WILD Ben Jones R Smullen A G Carton Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
topic_facet |
Zoology Aquaculture Flavour Functional feed Quality Dimethylsulfide Science & Technology Life Sciences & Biomedicine Fisheries Marine & Freshwater Biology DIMETHYL-BETA-PROPIOTHETIN BREAM SPARUS-AURATA FISH-OIL BROMOPHENOL CONTENT ATLANTIC COD GIANT CLAMS OCEAN FISH DIMETHYLSULFONIOPROPIONATE SULFIDE WILD |
description |
Nutrition plays an important role in shaping the organoleptic properties of fish as key flavour compounds are principally sequestered from the diet. Conventional aquaculture feeds are primarily formulated to maximise somatic growth with little consideration given to the effect on organoleptic attributes such as flavour, taste and aroma. We assessed the efficacy of the marine macroalgae Ulva ohnoi to alter the organoleptic properties of cultured freshwater barramundi (Lates calcarifer) by feeding a short term finishing diet. Barramundi were finished on diets containing 0%, 10%, 20% and 30% of dried U. ohnoi for 7, 14 and 21 days. Following harvest the organoleptic properties of fish were subjected to human sensory assessment. The flavour of barramundi finished on diets containing ≥ 20% inclusion level of U. ohnoi was described as being more ‘desirable’, ‘sweeter’, and ‘rich and complex’ when compared to fish finished on a standard commercial rearing diet. Fish finished with U. ohnoi also developed a crab-like/seafood flavour and a cooked crab aroma, resulting in significant increases in these organoleptic attributes. Fillets were subsequently analysed for bromophenol compounds and dimethylsulfide. Bromophenols were not detected at any time in fillets of barramundi that were finished on either U. ohnoi or a standard commercial diet. However, dimethylsulfide was found to be more elevated (~ 8 fold) in fish fed U. ohnoi. Feeding cultured freshwater fish a diet containing the marine algae U. ohnoi was effective in altering the organoleptic profile of fillets, imparting a rich and complex seafood-like flavour. The potent flavour compound dimethylsulfide was associated with this change and appears to be a key flavour compound in this instance. The application of a finishing diet that enhances flavour and aroma properties pre-harvest would enable aquaculture growers to exert direct control over these properties. This is especially important for freshwater finfish species as growers could conceivably produce fish that ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Ben Jones R Smullen A G Carton |
author_facet |
Ben Jones R Smullen A G Carton |
author_sort |
Ben Jones |
title |
Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
title_short |
Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
title_full |
Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
title_fullStr |
Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
title_full_unstemmed |
Flavour enhancement of freshwater farmed barramundi (Lates calcarifer), through dietary enrichment with cultivated sea lettuce, Ulva ohnoi |
title_sort |
flavour enhancement of freshwater farmed barramundi (lates calcarifer), through dietary enrichment with cultivated sea lettuce, ulva ohnoi |
publishDate |
2016 |
url |
http://hdl.handle.net/10536/DRO/DU:30135088 https://figshare.com/articles/journal_contribution/Flavour_enhancement_of_freshwater_farmed_barramundi_Lates_calcarifer_through_dietary_enrichment_with_cultivated_sea_lettuce_Ulva_ohnoi/20716108 |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30135088 https://figshare.com/articles/journal_contribution/Flavour_enhancement_of_freshwater_farmed_barramundi_Lates_calcarifer_through_dietary_enrichment_with_cultivated_sea_lettuce_Ulva_ohnoi/20716108 |
op_rights |
All Rights Reserved |
_version_ |
1766358245596725248 |