Extraction of carotenoid pigment from shrimp processing waste

Publication Number: US 3906112 A
Publication Date: 16-Sep-1975
Application Number: US 506,280 A
Filing Date: 16-Sep-1974
(Source: IFI)

US Patent Publication

Abstract (English)

Extracting a red carotenoid pigment from processing waste which comprises a milky-pink watery mixture containing dissolved and finely divided material from the waste. To this is added a small quantity of a triglyceride oil, such as soybean oil. The oil is dispersed in the watery mixture with the aid of turbulent mixing, after which the dispersion is heated and the oil fraction recovered by centrifugal extraction. The resulting dark-red oil is suitable for incorporation in commercially produced salmon and trout feed to improve the fishes'' flesh and skin coloration.

Inventors

ANDERSON; LYLE K.

Applicants

BIOPRODUCTS INCORPORATED

Priority

US 506,280 A  16-Sep-1974

Classifications

International (2006.01): A23L 1/27; A23L 1/275
International: A23L 1/27
Cooperative (2013.01.01): C07C 403/24; A23L 1/2753
National: 426/1; 426/429; 426/540; 426/437; 426/250
European: A23L 1/275B2; C07C 403/24

Patent References

US 1824685 A

Preserving process

Sep-1931

US 353822 A

[US 353822 A]

Dec-1886

US 1083769 A

Process of making a food for fish or animals, and a seasoning.

Jan-1914

Language of Filing

English


(Source: DOCDB)

Supplemental Information

Inventors

ANDERSON LYLE K

Applicants

BIOPRODUCTS

Priority

US 506,280 A  16-Sep-1974

Classifications

International (2006.01): A23L 1/27; A23L 1/275
International: A23L 1/27
Cooperative (2013.01.01): C07C 403/24; A23L 1/2753

Also Published As

CA 1044505 A

patent

Extraction of carotenoid pigment from shrimp processing waste

Dec-1978

1. A METHOD FOR PREPARING A CAROTENOID PIGMENT EXTRACT OF CRUSTACEAN SHELL WASTE, COMPRISING PREPARING FROM SAID WASTE A WATERY MIXTURE COMPRISING FINELY DIVIDED PORTIONS OF SAID WASTE, WHICH PORTIONS CONTAIN SAID PIGMENT, INCORPORATING AN OIL IN SAID MIXTURE TO PROUDCE AN AQUEOUS DISPERSION CONTAINING SAID OIL AS A DISPERSED PHASE, AND SEPARATING FROM SAID DISPERSION THE OIL PHASE THEREOF, WHICH PHASE CONTAINS THE PIGMENT EXTRACT.
2. The method of claim 1, wherein said preparing step comprises contacting crustacean shell waste with steam, pressing the waste to remove watery material associated therewith, and collecting the watery material, which material comprises said watery mixture.
3. The method of claim 1, wherein said preparing and incorporating steps comprise adding an oil to the crustacean shell waste, contacting the oil-containing waste with steam, then pressing the waste to remove watery material associated therewith, which watery material comprises a dispersion containing said oil as a dispersed phase.
4. The method of claim 1, wherein said separating is performed by centrifugal extraction.
5. The method of claim 1, wherein said crustacean shell waste comprises shrimp shell waste, and said pigment comprises the carotenoid pigment astaxanthin.
6. The method of claim 1, wherein said oil comprises a triglyceride.
7. The pigment extract produced by the method of claim 1.
8. A method for preparing a carotenoid pigment extract of crustacean shell waste in a form suitable for feeding to fish, comprising preparing from said waste a watery mixture comprising finely divided portions of said waste which include said pigment, incorporating an edible oil in said mixture to produce an aqueous dispersion containing said oil as a dispersed phase, separating from said dispersion the oil phase thereof, which phase contains said pigment in solution, and incorporating the pigment-bearing oil in a fish food formulation.
9. A method for preparing a carotenoid pigment extract of shrimp shell waste in a form suitable for feeding to fish of the genera Oncorhyneus, Trutta and Salmo, comprising preparing from said waste a watery mixture comprising finely divided portions of said waste which include said pigment, dispersing a triglyceride oil in said mixture to provide an aqueous dispersion containing said oil as a dispersed phase, separating from said dispersion the oil phase thereof which contains dissolved carotenoid pigment from said waste, and incorporating portions of said pigment-containing oil in a food formulation for said fish.
(Source: IFI)


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