Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
권호 표지

Physicochemical Properties of Ground Pork with Lotus Leaf Extract during Refrigerated Storage

연잎추출물 첨가가 분쇄돈육의 냉장저장 중 이화학적 품질에 미치는 영향

  • Lee, Kyung-Soo (Division of Food Beverage and Culinary Arts, Youngnam College of Science and Technology) ;
  • Kim, Ju-Nam (Division of Food Beverage and Culinary Arts, Youngnam College of Science and Technology) ;
  • Jung, In-Chul (Division of Hotel Culinary Arts, Daegu Technical College)
  • 이경수 (영남이공대학교 식음료조리계열) ;
  • 김주남 (영남이공대학교 식음료조리계열) ;
  • 정인철 (대구공업대학교 호텔외식조리계열)
  • Received : 2013.08.01
  • Accepted : 2013.08.29
  • Published : 2013.08.31
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Abstract

This study was carried out to investigate the effect of lotus leaf extract on the physicochemical characteristics of ground pork stored at $4^{\circ}C$ for 10 days. Four types of ground pork were evaluated: ice water added (T0), 3% lotus leaf extract added (T1), 7% lotus leaf extract added (T2), and 10% lotus leaf extract added (T3). The pH was increased during storage, but decreased after 10 days of storage (p<0.05). The TBARS increased with a longer storage period (p<0.05), and those of T0, T1, T2 and T3 were 0.777, 0.244, 0.185, 0.182 mg MA/kg, respectively, after 10 days of storage. The VBN content of T0 and T1 increased with a longer storage period (p<0.05), but those of T2 and T3 were not significantly changed. In the case of surface color, the $L^*$ increased with a longer storage period, and that of T0 was the highest (p<0.05). The $a^*$ decreased with a longer storage period, and the $b^*$ was the highest after 1 day of storage (p<0.05). In the case of internal color, $L^*$ was not significantly changed, and $a^*$ was decreased with a longer storage period (p<0.05). The $b^*$ increased with a longer storage period (p<0.05). Water holding capacity increased with a longer storage period, and those of T2 and T3 were the highest (p<0.05). Cooking loss decreased with a longer storage period, and those of T0 and T1 were higher than those of T2 and T3 (p<0.05). Hardness and chewiness were not significantly different with a longer storage period, or among any samples.

본 연구는 연잎추출물의 첨가가 분쇄돈육의 냉장 중 이화학적 품질에 미치는 영향을 규명하고자 하였다. 분쇄돈육은 돈육 88%, 대두유 5%, 소금 2%, 냉수 5%를 배합하여 제조한 대조군(T0), 여기에 냉수대신 3% 연잎추출물을 첨가한 T1, 7% 연잎추출물을 첨가한 T2 그리고 10% 연잎추출물을 첨가한 T3 등 네 종류의 분쇄돈육을 제조하였다. 이들은 냉장 중 pH, TBARS, VBN 함량, 표면과 내부의 색깔, 보수력, 가열감량, 경도 및 씹힘성을 측정하였다. 분쇄돈육의 pH는 저장 중 높아지다가 10일째 유의하게 감소하였다(p<0.05). TBARS는 저장 중 유의하게 증가하여 저장 10일째 T0, T1, T2 및 T3가 각각 0.777, 0.244, 0.185 및 0.182 mg MA/kg을 나타내었다(p<0.05). VBN 함량은 저장 중 T0 및 T1은 유의하게 증가하였으나, T2 및 T3는 유의한 변화가 없었다. 표면 색깔의 경우, 명도($L^*$)는 저장 중 증가하였으며, T0가 가장 높았다(p<0.05). 적색도($a^*$)는 저장 중 감소하였으며, 황색도($b^*$)는 저장 초기가 가장 높았다(p<0.05). 내부 색깔의 경우, 명도는 저장 중 유의한 변화가 없었으나, 적색도는 유의하게 감소하였다(p<0.05). 그러나 황색도는 유의하게 증가하였다(p<0.05). 보수력은 저장 중 유의하게 증가하였으며, T2 및 T3가 가장 높았다(p<0.05). 가열감량은 저장 중 유의하게 감소하였으며, T0 및 T1이 T2 및 T3보다 유의하게 높았다(p<0.05). 경도 및 씹힘성은 저장 중 유의한 변화가 없었으며, 시료들 사이에도 차이가 없었다.

Keywords

References

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