Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp

Two spice and herb extract combinations from galangal (Alpinia galanga), rosemary (Rosmarinus officinalis), and lemon iron bark (Eucalyptus staigerana) were evaluated for their ability to inhibit the growth of inoculated Listeria monocytogenes and Staphylococcus aureus and naturally present spoilage...

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Main Authors: Weerakkody, N., Caffin, N., Dykes, Gary, Turner, M.
Format: Journal Article
Published: 2011
Online Access:http://hdl.handle.net/20.500.11937/43113
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author Weerakkody, N.
Caffin, N.
Dykes, Gary
Turner, M.
author_facet Weerakkody, N.
Caffin, N.
Dykes, Gary
Turner, M.
author_sort Weerakkody, N.
building Curtin Institutional Repository
collection Online Access
description Two spice and herb extract combinations from galangal (Alpinia galanga), rosemary (Rosmarinus officinalis), and lemon iron bark (Eucalyptus staigerana) were evaluated for their ability to inhibit the growth of inoculated Listeria monocytogenes and Staphylococcus aureus and naturally present spoilage microflora on cooked ready-to-eat shrimp stored for 16 days at 4 or 8°C. A combination of galangal, rosemary, and lemon iron bark significantly reduced (P < 0.05) levels of aerobic bacteria and lactic acid bacteria at 4°C on day 12 by 1.6 and 1.59 log CFU/g, respectively. By day 16, levels of these bacteria were equivalent to those of controls. The shrimp treated with this spice and herb extract combination had significantly lower (P < 0.05) lipid oxidation from day 4 to day 16. Similarly, a combination of galangal and rosemary extract significantly reduced (P < 0.05) levels of aerobic bacteria and lactic acid bacteria at 8°C on day 8 by 2.82 and 2.61 log CFU/g, respectively. By days 12 and 16, levels of these bacteria were equivalent to those of controls. The shrimp treated with this spice and herb combination had significantly lower (P < 0.05) lipid oxidation on days 4 and 16. None of the spice and herb extract combinations had an effect on levels of L. monocytogenes or S. aureus or changed the color or pH of the shrimp during storage. The results of this study indicate that combinations of galangal, rosemary, and lemon iron bark extracts can be used to control the growth of spoilage microflora on ready-to-eat shrimp.
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spelling curtin-20.500.11937-431132017-09-13T14:30:53Z Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp Weerakkody, N. Caffin, N. Dykes, Gary Turner, M. Two spice and herb extract combinations from galangal (Alpinia galanga), rosemary (Rosmarinus officinalis), and lemon iron bark (Eucalyptus staigerana) were evaluated for their ability to inhibit the growth of inoculated Listeria monocytogenes and Staphylococcus aureus and naturally present spoilage microflora on cooked ready-to-eat shrimp stored for 16 days at 4 or 8°C. A combination of galangal, rosemary, and lemon iron bark significantly reduced (P < 0.05) levels of aerobic bacteria and lactic acid bacteria at 4°C on day 12 by 1.6 and 1.59 log CFU/g, respectively. By day 16, levels of these bacteria were equivalent to those of controls. The shrimp treated with this spice and herb extract combination had significantly lower (P < 0.05) lipid oxidation from day 4 to day 16. Similarly, a combination of galangal and rosemary extract significantly reduced (P < 0.05) levels of aerobic bacteria and lactic acid bacteria at 8°C on day 8 by 2.82 and 2.61 log CFU/g, respectively. By days 12 and 16, levels of these bacteria were equivalent to those of controls. The shrimp treated with this spice and herb combination had significantly lower (P < 0.05) lipid oxidation on days 4 and 16. None of the spice and herb extract combinations had an effect on levels of L. monocytogenes or S. aureus or changed the color or pH of the shrimp during storage. The results of this study indicate that combinations of galangal, rosemary, and lemon iron bark extracts can be used to control the growth of spoilage microflora on ready-to-eat shrimp. 2011 Journal Article http://hdl.handle.net/20.500.11937/43113 10.4315/0362-028X.JFP-11-052 restricted
spellingShingle Weerakkody, N.
Caffin, N.
Dykes, Gary
Turner, M.
Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title_full Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title_fullStr Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title_full_unstemmed Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title_short Effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
title_sort effect of antimicrobial spice and herb extract combinations on listeria monocytogenes, staphylococcus aureus, and spoilage microflora growth on cooked ready-to-eat vacuum-packaged shrimp
url http://hdl.handle.net/20.500.11937/43113