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022 _a2045-2322 (Online)
024 8 _ahttps://doi.org/10.1038/s41598-018-34232-x
040 _aMX-TxCIM
041 _aeng
100 1 _aBlomqvist, J.
_920556
245 1 0 _aOleaginous yeast as a component in fish feed
260 _aLondon (United Kingdom) :
_bNature Publishing Group,
_c2018.
500 _aPeer review
500 _aOpen Access
520 _aThis study investigates the replacement of vegetable oil (VO) in aquaculture feed for Arctic char (Salvelinus alpinus) with oil produced by the oleaginous yeast Lipomyces starkeyi grown in lignocellulose (wheat straw) hydrolysate. VO is extensively used to partially replace fish oil in aquaculture feed, which can be seen as non-sustainable. VO itself is becoming a limited resource. Plant oils are used in many different applications, including food, feed and biodiesel. Its replacement in non-food applications is desirable. For this purpose, yeast cells containing 43% lipids per g dry weight were mechanically disrupted and incorporated into the fish feed. There were no significant differences in this pilot study, regarding weight and length gain, feed conversion ratio, specific growth rate, condition factor and hepatosomatic index between the control and the yeast oil fed group. Fatty and amino acid composition of diet from both groups was comparable. Our results in fish demonstrate that it is possible to replace VO by yeast oil produced from lignocellulose, which may broaden the range of raw materials for food production and add value to residual products of agriculture and forestry.
546 _aText in English
650 7 _aYeasts
_2AGROVOC
_916740
650 7 _aFish feeds
_2AGROVOC
_925443
650 7 _aSalvelinus alpinus
_2AGROVOC
_925444
650 7 _aAquaculture
_2AGROVOC
_95017
700 1 _aPickova, J.
_925445
700 1 _aTilami, S.K.
_925446
700 1 _aSampels, S.
_920559
700 1 _aMikkelsen, N.
_925447
700 1 _aBrandenburg, J.
_920553
700 1 _aSandgren, M.
_920560
700 1 _aPassoth, V.
_920561
773 0 _gv. 8, art. 15945
_dLondon : Nature Publishing Group, 2018.
_x2045-2322
_tNature Scientific Reports
_wa58025
856 4 _yClick here to access online
_uhttps://doi.org/10.1038/s41598-018-34232-x
942 _cJA
_n0
_2ddc
999 _c64621
_d64613