Potential of microalgae as source of health-beneficial bioactive components in produced eggs
In line with the growing interest in humans’ nutrition, production of microalgae-based functional foods characterized by an increased content of bioactive substances is attractive. The aim of this study was to investigate the potential of microalgae as additives to feed for laying hens, to enrich th...
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Published in | Journal of food science and technology Vol. 58; no. 11; pp. 1 - 10 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New Delhi
Springer India
01.11.2021
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | In line with the growing interest in humans’ nutrition, production of microalgae-based functional foods characterized by an increased content of bioactive substances is attractive. The aim of this study was to investigate the potential of microalgae as additives to feed for laying hens, to enrich the eggs with polyunsaturated fatty acids (PUFA) and selenium/carotenoid antioxidants.
Our results showed that supplementation of hens by feed containing 1% of
Trachydiscus minutus
or 1% of
Japonochytrium marinum
leads to increase of long-chain PUFA in eggs by 26–66%. Addition of 1% of
Scenedesmus obliquus
to feed causes the increase of lutein and cantaxanthin in eggs by 48% and 18%, respectively, and addition of 0.5% selenium enriched
Chlorella vulgaris
increases the final content of organic selenium in eggs by 100–152%. As concerns selenium, it is important to notice that its bioavailability has to be considered. Despite the higher concentration of total selenium in
Vischeria helvetica
than in
C. vulgaris,
its bioaccessibility in
Vischeria
was limited, thus out of usage for feeding purposes. Administration of combinations of selenium enriched
Chlorella
+
Japonochytrium
and
Chlorella
+
Schizochitrium
verified the increased concentrations of organic selenium, PUFA, as well as carotenoids, with no adverse effect on quality and productivity of eggs.
The study confirmed the potential of both traditional as well as new microalgae to be used as feed supplements for functional eggs production. The supplementation of hens by specific microalgae combinations could be advantageous in terms of spectrum of bioactive compounds present. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-1155 0975-8402 |
DOI: | 10.1007/s13197-020-04896-3 |