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Young, AJ, pritchard, J, White, D and Davies, S (2017) Processing of astaxanthin-rich Haematococcus cells for dietary inclusion and optimal pigmentation in Rainbow trout, Onchorynchus mykiss L. Aquaculture Nutrition. ISSN 1365-2095
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Abstract
A range of physical cell disruption techniques have been evaluated to aid the processing of astaxanthin-rich haematocysts of Haematoccus pluvialis for inclusion in
salmonid feeds. Cell disruption by a scaleable pressure treatment system was shown to be effective in breaking open the haematocysts without altering the content or
isomeric composition of carotenoids in the algal cells. Storage of disrupted cells was optimal at -20°C in the dark under nitrogen. Disrupted cells were spray-dried,
incorporated into commercial diets and fed to Rainbow trout (Onchorynchus mykiss L). A marketable level of pigmentation in fish muscle was achieved after 10 weeks
dietary supplementation. The geometric and optimal isomer composition of the astaxanthin deposited in the muscle was nearly identical to that seen in
Haematococcus. Changes were observed in the chirality of the astaxanthin deposited in the skin in comparison to that isolated from both the white muscle and the alga.
| Item Type: | Article |
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| Additional Information: | This is the peer reviewed version of the following article: Young AJ, Pritchard J, White D, Davies S. Processing of astaxanthin-rich Haematococcus cells for dietary inclusion and optimal pigmentation in Rainbow trout, Oncorhynchus mykiss L. Aquacult Nutr. 2017;00:1–8. https://doi.org/10.1111/anu.12505., which has been published in final form at http://dx.doi.org/10.1111/anu.12505 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
| Uncontrolled Keywords: | 0704 Fisheries Sciences |
| Subjects: | Q Science > QH Natural history > QH301 Biology S Agriculture > SH Aquaculture. Fisheries. Angling |
| Divisions: | Natural Sciences & Psychology (closed 31 Aug 19) |
| Publisher: | Wiley: 12 months |
| Date Deposited: | 07 Sep 2016 09:11 |
| Last Modified: | 04 Sep 2021 04:12 |
| DOI or ID number: | 10.1111/anu.12505 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/4096 |
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