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08-23-2002, 03:05 AM
| #2 | ||
| Grand Master Gardener   Join Date: Feb 2001 Location: Outside under the gorgeous sun near Latitude 24ºN
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 | There are two ways to manufacture fish emulsion: 1 The Enzyme Hydrolysis Method. (E.H.M.) A wide variety of raw materials may be used in the E.H.M. Fish flesh or waste is separated from the bony material and mixed with water. This mixture is homogenized and subjected to 50 degrees C. The pH of the slurry is reduced by adding acid (HCL) and a selected enzyme such as acid protease. Hydrolyses then proceeds during which oligopeptides are formed while the acidification stabilizes the liquid. The enzyme-fish mixture is stored at 48 degrees C for a number of hours to maximize the hydrolyses effect. The fish proteins are reduced by this process to basic free amino acids. The resulting liquid product should be stored at a low pH to prevent microbial degradation. This product is a source of soluble organic nitrogen but lacks concentration due the amount of water required by the process. Normally such products would contain less than 25% and a Nitrogen reading as low as 2% requiring chemical amendment to attain acceptable nitrogen levels. 2 The Fish Solubles Method (F.S.M.) Fish sources are from canning and filleting factories and other fish resources unfit for human consumption. The fish flesh is minced and subjected to flash steam temperatures (100 seconds) to sterilize and weaken tissue fibers. The slurry is then subjected to a mechanical pressing operation during which the body liquids and oils are separated from the solids. This press liquid is then further processed by evaporation which removes suspended solids and all particles. It is important that the press liquid be totally free of any particles that could cause nozzle blocking during spray-on applications; another important quality factor to the producer and consumer. | ||
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08-23-2002, 01:00 PM
| #4 | ||
| Grand Master Gardener Join Date: Feb 2001 Location: Outside under the gorgeous sun near Latitude 24ºN
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| Hey! I was nearly late for work this AM looking that up for you, and you dang well better be making some fresh fish emulsion today!!  Answer #2- A blender??  Bury 'em deep and hope no critters find 'em! | ||
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