Isolation and chemical evaluation of protein from shrimp cannery effluent
Shrimp cannery effluent, collected at a seafood plant at Westego, La., contained {approx} 0.65% total solids. Approx 2 kg of shrimp waste protein (SWP), drum dried at 124-127{degree}, was obtained from 2650 l of the effluent by treatment with HCl at the isoelectric point. Proximate analyses of SWP w...
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Published in | Journal of agricultural and food chemistry Vol. 23; no. 4; pp. 632 - 635 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
01.07.1975
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Subjects | |
Online Access | Get full text |
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Summary: | Shrimp cannery effluent, collected at a seafood plant at Westego, La., contained {approx} 0.65% total solids. Approx 2 kg of shrimp waste protein (SWP), drum dried at 124-127{degree}, was obtained from 2650 l of the effluent by treatment with HCl at the isoelectric point. Proximate analyses of SWP were: moisture, 10.00; ash, 6.33; protein, 58.98; fat, 16.97; and crude fiber, 1.62%. Gross energy was 5170 cal/g; microminerals were: Ca, 0.465%; Mg, 471 ppm; p, 0.815%; S, 0.415%; Fe, 0.110%; Zn, 109.5 ppm; Mn, 18 ppm; and Cu, 17.5 ppm. Total bacterial counts for shrimp cannery effluent and SWP were 1.4 x 10 Super(6)/ml and < 200/g, respectively. SWP was analyzed for 18 amino acids. Hygroscopic properties of SWP and its defatted derivative were determined by exposure to atmospheric humidity and to 100% relative humidity in a closed container. Also, preliminary clarification tests were made with dilute solutions of 4 inorganic salts, namely aluminium sulfate, ferric sulfate ferric chloride, and sodium silicate. The 2 Fe salts were the most effective in separation. |
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Bibliography: | T T00 istex:781F063D90F0521FE61F56E9D3ECF3E433788F41 ark:/67375/TPS-R4RK3T2M-L ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-8561 1520-5118 |
DOI: | 10.1021/jf60200a012 |