Volume 59, Issue 2 p. 242-245

Lactic Acid/Melanosis Inhibitors to Improve Shelf Life of Brown Shrimp (Penaeus aztecus)

R.A. BENNER

R.A. BENNER

Author Acuff is with Dept. of Animal Science, Texas Agricultural Experiment Station, Texas A&M Univ., College Station, TX 77843–2471. Author Miget is with the Texas Agricultural Extension Service, P.O. Box 158, Port Aransas, TX 78373. Authors Finne and Benner are affiliated with Silliker Laboratories of Texas, 201 Hollernan Drive fast, College Station, TX 77840. Address inquiries to G. R. Acuff.

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R. MIGET

R. MIGET

Author Acuff is with Dept. of Animal Science, Texas Agricultural Experiment Station, Texas A&M Univ., College Station, TX 77843–2471. Author Miget is with the Texas Agricultural Extension Service, P.O. Box 158, Port Aransas, TX 78373. Authors Finne and Benner are affiliated with Silliker Laboratories of Texas, 201 Hollernan Drive fast, College Station, TX 77840. Address inquiries to G. R. Acuff.

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G. FINNE

G. FINNE

Author Acuff is with Dept. of Animal Science, Texas Agricultural Experiment Station, Texas A&M Univ., College Station, TX 77843–2471. Author Miget is with the Texas Agricultural Extension Service, P.O. Box 158, Port Aransas, TX 78373. Authors Finne and Benner are affiliated with Silliker Laboratories of Texas, 201 Hollernan Drive fast, College Station, TX 77840. Address inquiries to G. R. Acuff.

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G.R. ACUFF

G.R. ACUFF

Author Acuff is with Dept. of Animal Science, Texas Agricultural Experiment Station, Texas A&M Univ., College Station, TX 77843–2471. Author Miget is with the Texas Agricultural Extension Service, P.O. Box 158, Port Aransas, TX 78373. Authors Finne and Benner are affiliated with Silliker Laboratories of Texas, 201 Hollernan Drive fast, College Station, TX 77840. Address inquiries to G. R. Acuff.

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First published: March 1994
Citations: 24

Technical article 31277 from the Texas Agricultural Experiment Station. Funding was provided, in part, by the Sea Grant College Program. Appreciation is extended to Purac, Inc., Arlington, IL, for supplying lactic acid and to Gulf King Seafood Co., Aransas Pass, TX, for shrimp and use of facilities.

ABSTRACT

l-Lactic acid, sodium bisulfite, and 4-hexylresorcinol were evaluated, alone and in combination, as melanosis and microbial spoilage inhibitors on brown shrimp (Penaeus aztecus). No effect on the microbiological shelf life of treated shrimp was observed. 4-Hexylresorcinol functioned exceptionally well as a melanosis inhibitor, alone and in combination with. l-lactic acid. However, extensive bacterial growth was demonstrated in the 4-hexylresorcinol dip solution during normal storage on deck, creating the potential for a heavy bacterial inoculation of shrimp during a typical dipping process. Addition of l-lactic acid to the 4-hexylresorcinol dip solution prevented bacterial growth in the dip solution and did not diminish melanosis inhibition.