본 연구에서는 다양한 식물성 지방 대체제가 돼지고기 패티의 이화학적 특성 및 관능 특성에 미치는 영향을 평가 하고자 하였다. 동물성 지방 처리군, 식물성 기름 처리군, 비드 처리군 첨가에 따른 영향을 분석하였으며, 실험을 통해 지방 함량은 낮추면서 물리적 및 관능적 측면에서 돼지 등지방을 사용한 패티와 큰 차이를 나타내지 않음을 확인 하고자 하였다. 본 연구에서는 기존의 지방대체 방법인 식물성 기름 첨가와 식물성 기름 유화물 첨가 뿐 아니라 식물성 고체 지방 대체제를 제조할 수 있는 방법을 제시하였으며, 이를 육가공 제품에 적용하여 다양한 지방 대체제의 효과와 비교했다는 점에서 기존 지방대체 연구와 차이점이 있을 것으로 판단된다. 또한, 연구 결과 식물성 고체 지방 대체제는 패티의 조리손실을 줄이고 보수력을 개선하는 등 품질을 향상시킬 수 있었으며, 패티의 부드러움과 다즙성에 영향을 주어 선호도가 높은 것으로 분석되었다. 이는 새로운 지방 대체제의 적용 가능성에 대한 기초 연구 자료로 제공될 수 있다.

Pork is a popular meat consumed in Korea. However, the consumption pattern has typically focused on preferred parts, like pork belly, which is usually broiled. This consumption pattern has increased both stocks of low fat parts and medical costs, and has thereby disturbed pork industry growth and the national health welfare. Changing the consumption patterns of preferred parts and encouraging consumption of low fat parts will improve consumers’ quality of life and also increase their benefits. Thus, this study estimated WTP (Willingness To Pay) for health funds among consumers who eat pork meat, considering the health benefits gained by consuming low fat parts and changes in preferred part consumption. The results of this study show that WTP is higher when consumers have a smaller family and a higher income; these consumers plan to increase intake of pork meat in the future and think that the promotion of low fat pork meat consumption is more important. The WTP for health funds is estimated to be 49won to 287won through Logit Model. The health benefits of low fat consumption were estimated to be 92 billion won to 539 billion won per year. Therefore, reforming low fat pork consumption not only changes the traditional consumption pattern focused on preferred parts but also leads to a variety of benefits for consumers, including health benefits.

본 연구에서는 돈지육 및 돈육 조직 내에 열안정성 수용성 단백질의 존재 여부를 확인하고 항체 생산에 있어항원으로의 사용 가능 여부를 확인하고자 하였다. 이를 위해 돈지육 및 돈육을 생(raw) 시료와 조리된(cooked) 시료로 구분하여 비열처리 및 열처리법으로 단백질을 추출한 후 단백질 존재여부를 단백질 정량과 SDS-PAGE로 확인하였다. 그 결과 돈지육과 돈육 모두 생 시료를 비열처리법으로 추출한 시료의 경우 25~100 kDa 사이의 다양한 단백질이 확인된 반면 시료를 가열하거나 추출 시 열처리를 한경우 돈지육에는 100 kDa 이상의 단백질과 30 kDa 및 15 kDa 이하의 일부 단백질이, 돈육에는 100 kDa 이상과 30 kDa 이하의 단백질이 확인되어 돈지육과 돈육에 열안정성 수용성 단백질이 존재하는 것으로 확인되었다. 이들 열안정성 수용성 단백질을 마우스에 면역 후 항혈청 역가를 측정한 결과 면역한 모든 마우스에서 높은 역가를 나타내었고, 생산된 혈청은 돈지육과 돈육에 각각 특이적인 반응성을 보인 반면 다른 축육과 지방육에 대해서는 반응성이 상대적으로 낮았다. 이러한 연구결과를 볼 때 돈지육 및 돈육에 존재하는 열안정성 수용성 단백질이 돈지육과 돈육에 특이적으로 반응하는 항체를 개발하는데 유용한 마커로서 활용이 가능하며, 열안정성 수용성 단백질에 대한 항체개발은 열처리된 축육 가공품 중 돈지육 및 돈육의 분석에도 매우 유용하게 활용할 수 있을 것으로 판단된다.

The effects of substituting fat with different levels of pork rind on quality characteristics of emulsified sausage were investigated. Five sausage batches were manufactured by partially replacing fat with 0, 5, 10, 15, 20% pork rind. After manufacturing, the sausages were vacuum-packaged and stored at 4℃ for 1, 7, 14, 21 and 28 days. The results indicated that the increase in levels of pork rind resulted in lower calorie whereas higher moisture, protein, collagen contents (p<0.05). Use of pork rind resulted in an increase in amounts of minerals such as Cu, K, Mn, Na, P and Zn, and free amino acids such as aspartic acid, threonine, serine, glutamic acid, glycine, alanine, valine and iso-luecine, as compared with the control (0% pork rind). On the other hand, no significant differences in the sensory properties of sausage with added pork rind were observed. Based on the results in the present study, it is suggested that pork rind can be used as a fat replacer in manufacture of emulsified sausage without adverse effect on the quality characteristics and sensory properties as well.

This study was carry out to investigate the quality comparison of ground Korean native black pork compared with modern genotype pork by different fat addition. The Korean native black pig and modern genotype pig were slaughtered at 75 kg and 105 kg of live weight, and for 240 days and 210 days of feeding periods, respectively. The ground lean pork (M. semimembranosus) mixed with ground fat (10, 20 and 30%, respectively) was stored for 9 days at 4℃. The crude fat increased as fat content increased. The pH of two porks increased significantly during storage. It was lower the Korean native black pork during storage than modern genotype pork. The WHC (water-holding capacity) of Korean native black pork was higher than modern genotype pork. The Korean native black pork maintained black reddish color because it had lower CIE L* value and higher CIE a* value than the modern genotype pork. CIE L, b*, C* and h values increased with increasing fat content in two samples but all CIE color values decreased during storage. TBARS (2-thiobarbituric acid reactive substances), POV (peroxide value) and FOX (ferrous oxidation-xylenol orange) of ground pork during storage were increased as fat content increased. Lipid oxidation of Korean native black pork occurred more rapidly than modern genotype pig. The Korean native black pork tended to contain more saturated fatty acids compared with the modern genotype pork. Especially, stearic acid and total SFA (saturated fatty acid) content had significantly higher in Korean native black pork (p<0.05).

This study was conducted to investigate the quality characteristics of low- fat pork patties containing fat replacers. Carrageenan(CA) in combination with pectin(PE) or potato starch(PO) was added as fat replacers and physicochemical properties were evaluated in low-fat pork patties cooked by oven-roasting or pan-frying. Uncooked and cooked pork patties formulated with fat replacers were higher in moisture and ash content and lower in fat content than those of control. The cooking yield and reduction in diameter of pork patties were significantly improved by the addition of fat replacers(p<0.05). Pork patties formulated with CA had the highest fat retention, while CA+PE had the highest water holding capacity. Hunter s L(lightness) value was not different from among patties and a(redness) and b(yellowness) values were higher in carrageenan-based patties than those of control patties. Hardness was higher in carrageenan-based patties than that of control and cohesiveness and springiness showed no difference among patties. Sensory analysis showed that flavor, juiciness and palatability of carrageenan-based patties were superior to control patties and combined use of CA with PE or PO provided improved acceptability of low-fat pork patties over that from using single carrageenan.