Effects of $\beta-Carotene$ on the Thermal Oxidation Stability of Deep Fried Lard

튀김용 돈지의 열산화 안정성에 미치는 $\beta-Carotene$의 효과

  • Han Kyu-Ho (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) ;
  • Park Pyo-Jam (Department of Biotechnology, Konkuk University) ;
  • Jeon Byung-Tae (Korea Nokyong Research Center, Konkuk University) ;
  • Park Woo-Joon (U.S. Wheat Associates Inc.,) ;
  • Lee Chi-Ho (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
  • 한규호 (건국대학교 축산식품생물공학과) ;
  • 박표잠 (건국대학교 생명공학과) ;
  • 전병태 (건국대학교 한우녹용연구센터) ;
  • 박우준 (미국 소맥협회) ;
  • 이치호 (건국대학교 축산식품생물공학과)
  • Published : 2005.12.01

Abstract

This study was designed to investigate the effect of $\beta-carotene$ on the heat oxidation stability of deep fried laid with different healing temperature. Commercially purchased $\beta-carotene$ was used to this experiment $\beta-carotene$ was added to the deep fried lard at final concentration of $0\%\;0.001\%\;and\;0.004\%$ (wt/wt fat basis). Total plate count peroxide value, acid value, and TBA(thiobarbituric acid) values of the samples were determined regulary at $50^{\circ}C$ during 15 days. The result of the study are as follows: The number of microorganism was decreased by $\beta-carotene$ added to the deep fried lard Deep fried lard with $0.004\%$ $\beta-carotene$ have higher antioxidative effect than those of control and $0.001\%$ treated group. Peroxide and TBA values were significantly (P<0.05) decreased in all samples by added $\beta-carotene$ at $0.004\%$ Antioxidative effect increased with increasing concentration of $\beta-carotene$. These results suggest that $\beta-carotene$ might inhibit the growth of microganisms and retard lipid oxidation in the deep fried lard.

본 연구는 $80^{\circ},\;130^{\circ}C$$180^{\circ}C$온도대별로 유열 처리한 돈지에 $0\%,\;0.001\%$$0.004\%$의 수준으로 $\beta-carotene$을 첨가한 후 $50^{|circ}C$에서 15일간 보관시키면서 $\beta-carotene$ 총의 열 산화 안정성을 알아내기 위하여 총 균수검사, 과산화물가 (Peroxide value), 산가(Acid value) 및 TBA가를 측정하여 비교한 결과 다음과 같은 결과를 얻었다. 1) 미생물 총 균수 실험에서 $\beta-carotene$의 첨가량이 $0\%,\;0.001\%$$0.004\%$로 증가함에 따라 균의 증식이 현저하게 억제되었다. 온도대별로 $180^{\circ}C$ 처리 군에서는 저장기간이 길어질수록 총 균수가 증가하는 경향을 나타내었으나, $80^{\circ}C$$130^{\circ}C$ 처리 군에서는 저장 기간이 길어질수록 총 균수가 현저하게 증가하였다. 2) 과산화물가의 측정 실험에 $\beta-carotene$의 첨가량이 $0.004\%$일 때가 $0\%,\;0.001\%$에 비해 유의하게 (P<0.05) 낮은 값을 나타냈다. 3) 산가의 측정실험에서 저장기간이 길어지면서 $\beta-carotene$의 첨가량이 증가할수록 항산화 능력과는 정의 상관관계를 나타났다. $\beta-Carotene$의 첨가량이 $0.004\%$일 때가 $0\%,\;0.001\%$에 비해 유의하게 (P<0.05) 낮은 값을 나타냈다. 4) TBA가 측정실험에서 대조군과 시료와의 비교에서 온도가 증가함에 따라 값이 상승하는 경향을 나타냈으며, 저장 기간 15일째 $\beta-carotene$의 첨가량이 $0.001\%$$0.004\%$ 처리 군이 대조군에 비해 유의하게 (P<0.05) 낮은 값을 나타냈다. 따라서 유열처리 한 돈지에 $0.004\%$ $\beta-carotene$을 첨가하면 열 산화 방지에 매우 효과적인 것으로 사료되었다.

Keywords

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