Microbial Protein Produced from Brown Seaweed and Spruce Wood as a Feed Ingredient.

The conversion of nonedible biomass to protein for use in feed is an attractive strategy toward improved sustainability in aquaculture. We have studied the possibility to produce protein-rich yeast Candida utilis on a medium consisting of enzymatically hydrolyzed sulphite-pulped spruce wood, mainly providing glucose, and enzymatically hydrolyzed brown seaweed, supplemented with ammonium sulfate. The results show that this blend constitutes a complete fermentation medium that enables good growth rates and cell yields. Results from a salmon feeding trial showed that the yeast can replace parts of a traditional fishmeal diet without harmful effects, although the apparent protein digestibility coefficient for the yeast was suboptimal. While further optimization of both the fermentation process and downstream processing is needed, the present proof-of-concept study shows a path to the production of microbial protein based on a simple, local and sustainable fermentation medium.

• Publication year

  2018

• Venue

  Journal of Agricultural and Food Chemistry

• Publication date

  2018-07-13

• Fields of study

  Biology, Agricultural and Food Sciences, Chemistry, Environmental Science, Medicine

• Identifiers
  DOI 10.1021/acs.jafc.8b01835PMID 30004220
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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