Wang C., Ding S., Chiu K.-H., Liu W.-S., Lin T.-J. and Wen Z.-H. 2016. Extract from a mutant <em>Rhodobacter sphaeroides</em&gt; as an enriched carotenoid source. Food & Nutrition Research. 60, (Mar. 2016). DOI:https://doi.org/10.3402/fnr.v60.29580.