turchini-n3lcpufaenrichment-2021.pdf (1.09 MB)
n-3 LC-PUFA enrichment protocol for red earthworm, Eisenia fetida: a cheap and sustainable method
journal contribution
posted on 2021-07-01, 00:00 authored by Metin Kumlu, Asuman Beksari, Hatice Asuman Yilmaz, Merve Sariipek, Enes Kinay, Giovanni TurchiniGiovanni Turchini, Orhan Tufan EroldoganThis study assessed the potential of omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA) enrichment in red earthworm (Eisenia fetida, REW), via the addition of fish oil (FO, anchovy oil) to the culture-compost. FO addition to compost was tested at graded inclusion doses (0, 2.5, 5 and 10 g/100 g compost) and for different time-periods, up to 96h. Dose, time, as well as dose and time interactions of FO compost enrichment had significant effects on all fatty acids of earthworm bodies. The enrichment with 10 g FO/100 g compost sharply increased DHA levels of the worms (14.01 mol%) within just 24 h, compared to the control group (0.92 mol%). Similar increases (ranging between 10.99 and 15.55 mol%) occurred only after 48 and 96 h in lower FO enrichment levels (2.5 and 5.0 g/100 g compost, respectively). Therefore, it was concluded that, to obtain maximum n-3 LC-PUFA enrichment efficiency in REW, an enrichment period of 24 h is ideal and recommended for the 10 g FO/ 100 g compost, whereas longer enrichment periods (48-96 h) are more suitable for lower levels of FO inclusions (2.5 or 5 g/100 g compost).
History
Journal
Turkish journal of fisheries and aquatic sciencesVolume
21Issue
7Pagination
333 - 346Publisher
Central Fisheries Research InstituteLocation
Trabazon, TurkeyPublisher DOI
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ISSN
1303-2712eISSN
2149-181XLanguage
EnglishPublication classification
C Journal article; C1 Refereed article in a scholarly journalUsage metrics
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