Fig 1 in Recycling and repurposing food waste as feed for small-scale zebrafish (Danio rerio) aquaculture

Fig 1: Collection and production of food waste-based feed for a small-scale aquaculture study using zebrafish. (A & B) Some parts of food, such as peels, rinds, and stems, are separated during food preparation as pre-consumer food waste and are collected in designated bins to reduce contamination with undesirable materials such as paper, plastic, and chemicals. (C) To produce palatable and consistent feed, only a few food items were selected and processed. After collection food was frozen, then cooked, and portioned to contain 38% protein by weight. The cooked portions were then processed with a food processor into a smooth paste, which was dried in a dehydrator (D) to produce Converted Fish Flakes (CFF). (E-F) Commercial egg yolk fish flakes from pentair (E), Mixtures of CFF with commercial egg yolk fish flakes at different ratios of 25% (F), 50% (G) and 100% (H).