Chitosan 함유 보존제를 각각 1%, 3%, 5% 첨가하여 제조한 patty의 관능검사 결과, 맛과 종합적 기호도의 경우 PⅠ-1 처리구, PⅡ-1 처리구가 대조구보다 유의적으로 높은 값을 나타내었다. DPPH 라디칼 소거능은 대조구, 1% PⅠ-1 처리구, 1% PⅡ-1 처리구가 각각 13.54%, 21.78%, 14.07%로 PⅠ-1 처리구가 대조구보다 유의적으로 높았다. 총균수는 저장 10일째 PⅠ-1 처리구는 10⁴ CFU/g으로 대조구보다 약 1 log cycle 낮았으며, 대장균군수는 저장 10일째 PⅠ-1 처리구가 2.98 log CFU/g으로 가장 낮았으며, 다음은 PⅡ-1 처리구 낮았다. 가열 감량은 PⅠ-1 처리구와 PⅡ-1 처리구가 대조구보다 낮았고, 저장기간이 경과할수록 유의적으로 감소하는 경향을 나타내었다. 보수력은 PⅠ-1 처리구가 65.84%로 가장 높았으며, 저장기간 동안 대조구보다 높은 값을 유지하였다. 휘발성 염기태 질소는 대조구가 5일째까지, 보존제 처리구는 10일째까지 가식권의 한계치 이하로 나타났다. L 값은 저장기간 동안 뚜렷한 변화는 나타나지 않았고 a 값은 저장 5일째부터 급격히 낮아졌으며, b 값은 저장기간 동안 서서히 증가하는 경향을 나타내었다.
The quality characteristics of pork patty prepared with chitosan containing preservatives during storage at 4℃ were investigated to improve its functional property and shelf life using food preservatives of natural origin (PⅠ; 0.1% chitosan, 2.5% citric acid, 100 ppm grapefruit seed extract, 0.2% adipic acid, 0.1% Cinnamomum extract, D.W. 97.09% and PⅡ; 0.1% chitosan, 2.5% citric acid, 100 ppm grapefruit seed extract, 0.2% adipic acid, 0.1% Lysimachia christinae Hance extract, D.W. 97.09%). The sensory qualities (taste, appearance, texture and overall acceptability) of patties preserved with PⅠ(1, 3 and 5%) and PⅡ (1, 3 and 5%) were also investigated. The taste and overall acceptability of patties prepared with 1% PⅠ and 1% PⅡ were higher than those of the control. The DPPH radical scavenging activities of the control, 1% PⅠ and 1% PⅡ treated patties were 13.54%, 21.78% and 14.07%, respectively. The total aerobes and coliform count of patties preserved with 1% PⅠ were 10⁴ CFU/g and 10² CFU/g, respectively, after 10 days storage at 4℃. Cooking loss from 1% PⅠ and 1% PⅡ treated patties was lower than that of from the control. Water holding capacity was the highest for 1% PⅠ (65.84%), followed by 1% PⅡ and then the control. The shelf life of patties prepared with 1% PⅠ and 1% PⅡ was extended by about 5 days relative to the control at 4℃.