Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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The Effect of Citric Acid and Sodium Chlorite Mixtures on the Growth of Microorganisms from Broiler Thigh Surface

구연산과 아염소산나트륨 혼합물이 육계 넓적다리 표면의 미생물 증식에 미치는 영향

  • 김태현 (서울산업대학교 식품공학과 및 식품생물공학연구소) ;
  • 이영현 (서울산업대학교 식품공학과 및 식품생물공학연구소)
  • Published : 2002.03.01
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Abstract

The effect of citric acid and sodium chlorite(NaClO$_2$) mixtures at 100, 200 and 500 ppd(w/v) on the growth of microorganisms from broiler thigh surface was investigated. Absorbance and aerobic plate counts(APC) of inoculated nutrient broth refrigerated storage at 4∼5$^{\circ}C$ were measured after each additive was added. APC on thigh surface after immersion in each selected solution was enumerated during storage at 4∼5$^{\circ}C$ Absorbance of all citric acid and sodium chlorite mixture(0:100, 25:75, 50:50, 75:25 and 100:0, w/w) except 200 and 500 ppm of 100:0 at Day 0 were lower than the control during storage (p<0.05). And higher concentration of mixture tended to have lower absorbance. APC on thigh surface treated with 500 ppm citric acid and sodium chlorite mixture at 50 : 50 and 75 : 25 ratio were lower than others (p<0.05). Similar antimicrobial activity of additives was found in nutrient broth and on broiler thigh surface.

구연산과 아염소산나트(NaClO$_2$)이 0:100, 25:75, 50:50, 75:25와 100:0(w:w)의 비율로 된 혼합물이 육계 넓적다리 표면에 존재하는 호기성 미생물 증식에 미치는 영향을 조사하였다. 접종된 nutrient broth에 각각의 혼합물을 0, 100, 200과 500 ppm(w/v) 넣어 4~5$^{\circ}C$에서 배양한 후 흡광도와 호기성 미생물 수를 측정하였다. 선택된 혼합물 용액에 넓적다리를 침지한 후 냉장 저장(4~5$^{\circ}C$)하여 호기성 미생물 수를 측정하였다. 구연산과 아염소산나트륨의 혼합물을 첨가한 nutrient broth 흡광도는 100:0의 200 및 500 ppm(w/v)의 처리 직후를 제외하고 저장 기간 동안 모든 비율 및 농도에서 대조구보다 낮은 수치를 나타내었다 (p<0.05). 그리고 첨가물의 농도가 높을수록 흡광도는 낮은 경향을 나타내었다.

Keywords

References

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