Abstract:
PURPOSE: A method for culturing zeaxanthin producing strain is provided to massively zeaxanthin with high yield from marine biomass regardless of season. CONSTITUTION: A method for culturing zeaxanthin producing strain comprises: a first step of isolating strain having productivity of zeaxanthin; a second step of sub-culturing isolated strain; a third step of measuring productivity of zeaxanthin; and a step of adding medium at 1~50°C and 10~300 rpm then culturing. The strain having productivity of zeaxanthin is Micrococcus luteus, Vibrio, Pseudomonas, Achromobacter, Aeromonas, Photobacterium, Acetobacter, Gluconobacter, Alcaligenes, or Flavobacterium.
Abstract:
A manufacturing method of a feed fish using protein source as a substitute for fish meal separated from liquid waste from mackerel processing is provided to add the water-soluble protein collected from the mackerel edge processing waste water. A manufacturing method of a fish farm fodder comprises next steps. The hydrochloric acid solution of about 0.01-10N is added to the mackerels processing waste water. The pH of the processing waste water is controlled as the fixed value between about 4-7 and centrifuges about 1-100 degrees and the mackerels extracts is collected. The collected mackerels extract the fish meal, wheat flour, vitamin mixture, mineral mixture, salt, yeast and fish tallow. The mixture is molded by a pelletizer, dries with the cold air drying during 1-10 days and pulverizes to the proper size. The feed for fish farming is comprised of 2-30wt% mackerels extracts, 20-40wt% fish meal, 18-75wt% wheat flour, 0.3-2wt% vitamin mixture, 0.3-2wt% mineral mixture, 0.3-2wt% salt, 0.1-1wt% yeast and 2-5wt% fish tallow.
Abstract:
A method for culturing microorganism which produces EPA (eicosapentaenoic acid) is provided to ensure optical condition of culturing in culture temperature, stirring rate, and NaCl concentration. A method for culturing microorganism which produces EPA comprises: a first step of isolating a strain having EPA productivity; a second step of sub-culturing strain and cooling at 1~20°C; a third step of measuring and identifying EPA productivity of strain; and a fourth step of adding media at 1~50 °C and 10~300 rpm and culturing.
Abstract:
A composition of a feed for fish farming separated from liquid waste from mackerel processing capable of using a protein source as a substitute for fish meal is provided to replace the fish meal which is the protein source of the feed for fish farming. A composition of a feed for fish farming is separated from the mackerels processing waste water and includes the water-soluble protein usable as fish meal substitution protein. The mackerels processing waste water is the waste water coming from the mackerels processing plant. The water-soluble protein is separated from the mackerels processing waste water through isoelectric precipitation. The water-soluble protein is added so that it become 30 percent of the total fish meal. The mackerels comprises one or more mackerelses selected from the group of the Scomber japonicus and Scomber australasicus.