쑥과 솔잎 추출물을 첨가한 유화형 소시지의 냉장 저장 중 소시지의 저장성에 미치는 영향

Abstract

The objective of this study was to determine the shelf-life effects and residual nitrite contents of mugwort and pine needle extracts addition in emulsified sausage during cold storage. The sausages were of five types: no mugwort and pine needle extracts added (Control), mugwort water extract added (T1), mugwort ethanol extract added (T2), pine needle water extract added (T3), and pine needle ethanol extract added (T4). Each sausage type was tested in triplicate and assigned to one of four storage periods: 0, 10, 20 and 30 days. As storage time increased, the presence of mugwort and pine needle extracts resulted in decreased pH, CIE L*, and residual nitrite value, but increased TBARS (thiobarbituric acid reactive substance) values, and total plate counts (TPC). Values for pH, TBARS, residual nitrite contents and total plate counts were significantly decreased by the addition of mugwort and pine needle extracts compared to the control (P<0.05). Among all treatments, T4 was more (P<0.05) effective in delaying lipid oxidation compared to other treatment groups. In conclusion, this study demonstrates that addition of pine needle ethanol extract to emulsified sausages tended to improve antioxidant and antimicrobial effects and residual nitrite contents during storage than other treatment groups. (Key words : Mugwort, Pine needle, TBARS, Residual nitrite contents, Emulsified sausage)