교잡종 돼지에서 도체등급에 따른 돈육의 이화학적 특성 변화

진상근,김일석,송영민,허선진,하경희,김회윤,류현진,하지희,김병우,Jin Sang-Keun,Kim Il-Suk,Song Young-Min,Hur Sun-Jin,Hah Kyung-Hee,Kim Hoi-Yun,Lyou Hyun-Jee,Ha Ji-Hee,Kim Byeong-Woo 한국축산식품학회 2004 한국축산식품학회지 Vol.24 No.3

재래돼지 수컷과 랜드레이스 암컷을 교배하여 생산된 돼지 250두의 등급에 따른 돼지의 도체 특성과 돈육의 이화학적 특성을 비교한 결과는 다음과 같다. 생체중, 도체중, 지육율 및 등지방 두께는 E등급이 다른 네 등급에 비하여 유의적으로(P<0.05) 낮게 나타났다. 등급이 높을수록 가열 감량은 유의적으로(P<0.05) 많았으며, 수분 및 조지방 함량, PH 및 전단가는 등급간에 차이를 보이지 않았다. 육색 a*값은 C와D등급이 유의적으로 가장 높았으며, A등급이 유의적으로 가장 낮게 나타났으나 L*값과 b*값은 등급간에 차이를 보이지 않았다. 지방색 b*값은 A와 E 등급이 유의적으로 가장 높게 나타났으며, C 등급이 유의적으로(P<0.05) 가장 낮게 나타났으나 L*값과 a* 값은 등급간에 차이를 보이지 않았다. 가열육의 부착성과 씹힘성은 등급이 높을수록 유의적으로 (P<0.05)높게 나타났으나 경도, 응집성, 탄력성 및 파쇄성은 등급간에 차이를 보이지 않았다. 지방산조성은 등급이 높을 수록 palmitic산 함량이 유의적으로(P<0.05) 높고 불포화지방산/포화지방산 비율은 유의적으로(P<0.05) 낮게 나타났으며, 기타 다른 지방산들은 등급간에 유의적인 차이를 보이지 않았다. The objective of this study was to determine the changes of physico-chemical characteristics in crossbred pigs (Korean native breed ${\times}$ Landrace breed) by carcass grade. Research was conducted on 250 pigs divided into 5 carcass grade groups. Cooking loss have significantly (p<0.05) higher in higher carcass grade. However, water content, crude fat, pH and shear force have no difference. In meat color, a* was significantly (p<0.05) higher in C and D grade, whereas A grade was lower than those of others. L* and b* did not different among the carcass grades. In fat color, A and E grade were significantly (p<0.05) higher in b* and, C was lower than those of others. Adhesiveness and Gumminess of cooked meat were significantly (p<0.05) higher when carcass grade was higher. However hardness, cohesiveness, springiness and brittleness were not different among the carcass grades. Palmitic acid was significantly (p<0.05) higher in higher carcass grades and, saturated fatty acid/unsaturated fatty acid ratio was lower, whereas other fatty acids compositions had no difference among the carcass grades.

이온수와 복합광물질 급여가 비육돈의 지방산 및 아미노산 조성에 미치는 영향

진상근,김일석,송영민,강석남,제윤종,오희석,민찬식,Jin, Sang-Keun,Kim, Il-Suk,Song, Young-Min,Kang, Suk-Nam,Je, Yun-Jong,Oh, Hee-Suk,Min, Chan-Sick 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.5

This study was conducted to determine the effects of ion water and premixed mineral supplementation on the growth performance, carcass, and meat quality parameters in finishing pigs (LY$\times$D). Each 20 pigs were randomly allotted to three treatments; CON (basal diet), T1 (CON diet added active water), T3 (T1 diet added 1.0% premixed mineral). Used ion water and premixed mineral consisted mainly of Zn and Si, respectively. Cholesterol content (mg% meat) were not differ significantly in the samples, however, the ratios of cholesterol to fat in T1 and T2 was significantly lower than the control (p<0.05). The fatty acid qualities of palmitic acid, linoleic acid, arachidonic acid, SFA (saturated fatty acid), EFA (essential fatty acid), and EFA/UFA ratio were the highest significantly, however, those of the oleic acid, UFA (unsaturated fatty acid), and UFA/SFA ratio were the lowest significantly in T2 (p<0.05). The amino acid levels of glutamic acid, alanine, leucine, lysine, total amino acids, and EAA (essential amino acid) were the highest in T1 (p<0.05). Whereas, the levels of serine, valine, isoleucine were the highest in T2 (p<0.05). The results indicate that dietary ionized water and premixed mineral affects fatty acid composition and improves amino acid composition.

pH 조절 및 소금 첨가가 돼지 뒷다리부위를 이용한 수리미의 품질특성에 미치는 영향

진상근,김일석,정현정,조주현,최영준,이제룡,Jin, Sang-Keun,Kim, Il-Suk,Chung, Hyun-Jung,Cho, Ju-Hyun,Choi, Yeung-Joon,Lee, Jae-Ryong 한국축산식품학회 2007 한국축산식품학회지 Vol.27 No.1

pH 조절과 소금 첨가에 따른 돼지 뒷다리 부위를 이용한 수리미의 품질특성을 파악하기 위하여 C(명태수리미, 수세 2회, 소금 무첨가), 나머지 처리구들은 돼지 뒷다리 부위를 활용하여 제조한 수리미로 T1(pH 3.0, 소금 무첨가), T2(pH 3.0, 소금 첨가), T3(pH 11.0, 소금 무첨가) 및 T4(pH 11.0, 소금 첨가) 처리구로 하여 시험한 결과를 요약하면 다음과 같다. 육색은 pH가 높을수록 $L^*$값과 W값은 높았지만 $a^*$값과 $b^*$값은 현저하게 낮게 나타났다(p<0.05). 소금 첨가로 W값은 높았지만 $a^*$값과 $b^*$값은 현저하게 낮게 나타났다(p<0.05). 조직감의 응집성은 pH가 높을수록 높게 나타났으며(p<0.05), 탄력성을 제외한 모든 조직특성은 소금 첨가로 인해 현저하게 높게 나타났다(p<0.05). 파괴강도와 젤강도는 pH가 높을수록 높게 나타났고(p<0.05), 파괴강도, 젤강도 및 젤리강도는 소금 첨가로 인해 높게 나타났으나, 전단가는 오히려 낮게 나타났다(p<0.05). 관능검사 결과 연도는 pH가 높을수록 높게 나타났고(p<0.05), 소금 첨가로 인해 모든 관능평가 항목은 현저하게 높게 나타났다(p<0.05). pH 조절과 소금 첨가 유무 상호작용에는 육색, 조직감, 파괴강도, 변형값, 젤강도, 전단가 및 관능검사 결과는 현저한 차이가 없었다(p>0.05). 처리간에는 T2와 T4가 C와 가장 유사한 육색, 조직감, 물리적 특성 및 관능검사 결과를 나타내었고, 그 중에서도 pH 11.0 조절과 2% 소금 첨가구인 T4가 전반적으로 더 좋은 품질이었다. This study was conducted to determine the effect of pH adjustment and addition of sodium chloride (NaCl) on quality characteristics of pork leg surimi. The pork leg surimi was manufactured with one of following pH 3.0 or pH 11.0 adjustment and contained 2% NaCl or not; C (Alaska pollack surimi, two times washing, 0% NaCl), T1 (pork leg surimi pH 3.0 adjustment, 0% NaCl), T2 (pork leg surimi, pH 3.0 adjustment, 2% NaCl), T3 (pork leg surimi, pH 11.0 adjustment 0% NaCl), T4 (pork leg surimi, pH 11.0 adjustment, 2% NaCl). The $L^*$ and W values was increased with increasing of pH value, but the $a^*$ and $b^*$ values lower. The W values were higher (p<0.05) as addition of NaCl, but $a^*$ and $b^*$ values were lower. In textural properties, the cohesiveness was increased with increasing of pH value, however with the exception of springiness all traits were higher (p<0.05) as addition of NaCl. The breaking force and gel strength was increased with increasing of pH value. The breaking force, gel strength and breaking force u deformation were higher as addition of NaCl, but shear force lower. In sensory evaluation, the tenderness was increased with increasing of pH value and all traits of sensory evaluation also were higher (p<0.05) as addition of NaCl. There were no differences in interaction of pH adjustment and without or with NaCl on color, textural properties, breaking force, deformation, gel strength, shear force and sensory evaluation of pork leg surimi. The color, textural and physical characteristics and sensory evaluation ot T2 and T4 were similar to treatment C. Therefore, the pH 11.0 and 2% NaCl addition on process of manufacture of pork leg surimi would be recommended.

전통 양념을 이용한 소스의 냉장저장 중 pH, 산도, 단백질 분해효소 활성도 및 미생물 변화

진상근,김일석,하경희,박기훈,김인진,이제룡,Jin Sang-Keun,Kim Il-Suk,Hah Kyoung-Hee,Park Ki-Hun,Kim In-Jin,Lee Jae-Ryong 한국축산식품학회 2006 한국축산식품학회지 Vol.26 No.2

Changes of pH, acidity, pretense activity and microorganism on Korean traditional seasonings using soy sauce (T1), red pepper paste (T2) and soybean paste (T3) were investigated during storage at $1{\pm}1^{\circ}C$ for 21 days. The pH and pretense activity of soybean paste were significantly (p<0.05) higher compared to those for soy sauce and red pepper paste during storage. The acidity of red pepper paste were significantly (p<0.05) higher compared to those for soy sauce and soybean paste at 1, 7 and 14 days of storage. The total plate counts and Lactobacilli spp. of soy sauce were significantly (p<0.05) lower compared to those for soybean paste and red pepper paste during storage. The Escherichia coli of red pepper paste and soybean paste were not detected during storage. 본 연구는 간장(T1), 고추장(T2) 및 된장(T3) 소스를 제조한 후 $1{\pm}1^{\circ}C$에서 21일간 저장하는 동안 pH, 산도, 단백질 분해효소 활성도 및 미생물의 변화를 관찰하고자 수행하였다. pH는 된장 소스가 간장과 고추장 소스에 비해 현저하게 높았다. 산도는 고추장 소스가 간장과 된장 소스에 비해 저장14일까지 현저하게 높았다. 단백질 분해효소 활성도는 된장소스가 간장과 고추장 소스에 비해 현저하게 높았다. 총 균수는 간장 소스가 고추장과 된장 소스에 비해 현저하게 낮았고, 저장기간이 경과함에 따라 감소하였다. 대장균은 간장 소스가 저장 1일에 검출되었으나 저장 7일부터는 검출되지 않았고, 고추장과 된장 소스는 저장 1일부터 검출되지 않았다. 유산균수는 간장 소스가 고추장과 된장 소스에 비해 현저히 낮았고, 모든 양념에서 저장기간이 경과함에 따라 감소하였다.

축산물 및 가공 : Glucomannan, Carrageenan, Carboxymethyl cellulose 및 Transglutaminase-B 첨가가 돈육껍질결체조직 함유 돈육 패티의 품질 특성에 미치는 영향

진상근 ( Sang Keun Jin ),양한술 ( Han Sul Yang ) 한국동물자원과학회(구 한국축산학회) 2012 한국축산학회지 Vol.54 No.4

본 연구는 glucomannan, carrageenan, carboxymethyl cellulose 및 transglutaminase-B의 0.5% 첨가가 돈육껍질 돈육껍질결체조직 함유 돈육 패티의 품질특성에 미치는 영향에 대해 알아보고자 실시하였다. 육색의 경우, 대조구와 처리구들간 유의적인 차이가 나타나지 않았다. 관능평가 또한 모든 처리구들간 유의적인 차이가 나타나지 않았다(P>0.05). 그러나 가열감량의 경우, 저장말기인 21일에 대조구에 비해 모든 처리구들에서 낮은 가열감량 값을 나타내며, 전단가 또한 저장 14일에 CMC 및 TGB 처리구들에서, 저장 21일차엔 GMN 및 TGB 처리구에서 대조구에 비해 낮은 전단가 값을 나타내었다(P<0.05). 지방산패도 결과, 저장 1일에 CAR 처리구에서 가장 높은 지방산패도 값을 보였으나, GMN, CMC 및 TGB 처리구에서 대조구에 비해 낮은 값을 나타내었다. 이러한 경향은 저장말기인 21일에 GMN 및 TGB 처리구에서 낮은 지방산패도 값으로 나타났다(P<0.05). 또한 저장 21일의 모든 처리구에서 대조구보다 낮은 휘발성염기태질소 값을 나타내었다(P<0.05). 이상의 결과를 종합하면, 돈육껍질 함유 돈육 패티에 GMN, CAR, CMC 및 TGB의 첨가는 육색과 관능평가에 영향을 미치진 못하지만, 패티의 가열감량을 줄여 연한 조직감을 형성할 것으로 판단된다. 또한 GMN 및 TGB 첨가는 저장 중 패티의 지방산패도를 억제시키며, 저장말기 휘발성염기태질소 값을 떨어뜨려 저장성 향상에 기여 할 것으로 판단된다. This study was conducted to investigate the effects of glucomannan(GMN), carrageenan(CAR), carboxymethyl cellulose(CMC), and transglutaminase-B(TGB) on the quality and storage properties of pork patties manufactured with pork skin connective tissue during 21d of storage at 4℃. Results showed that CIE color values like lightness, redness and yellowness did not differ significantly among the pork patties. Sensory attributes also did not differ between the treatments(P>0.05). However, cooking loss was significantly lower in the group with added GMN, CAR, CMC, and TGB compared to the control at 21 d of storage. The shear force value of GMN and TGB were lower than the control at 21 d of storage(P<0.05). The pork patties added with GMN and TGB had lower thiobarbituric acid reactive substances(TBARS) values than the control at 1 or 21 d of storage(P<0.05). Volatile basic nitrogen(VBN) values of all treatment samples was lower than the control at 21 d of storage(P<0.05). Therefore, result of cooking loss suggested that the decrease in shear force in GMN and TGB were due to higher moisture retention. Also, the pork skin connective tissue with added GMN and TGB decreased lipid oxidation of pork patties.

명태 및 닭가슴살수리미와 전분의 혼합비율이 소시지의 조직학적 특성에 미치는 영향

진상근 ( Sang Keun Jin ),김일석 ( Il Suk Kim ),양미라 ( Mi Ra Yang ),허인철 ( In Chul Hur ),정현정 ( Hyun Jung Jung ),양한술 ( Han Sul Yang ),최영준 ( Yeung Joon Choi ) 한국동물자원과학회 2008 한국축산학회지 Vol.50 No.4

이온수 및 복합광물질첨가 비육돈의 생산형질, 도체 및 육질 특성에 미치는 영향

진상근,김일석,송영민,강석남,제윤종,오희석,민찬식,Jin, Sang-Keun,Kim, Il-Suk,Song, Young-Min,Kang, Suk-Nam,Jong, Je-Yun,Oh, Hee-Suk,Min, Chan-Sick 한국축산식품학회 2009 한국축산식품학회지 Vol.29 No.2

This study investigated the effects of ion water and premixed mineral supplementation on the growth performance, carcass, and meat quality parameters in finishing pigs ($LY{\times}D$). Each 20 pigs were randomly allotted to three treatments; CON (basal diet), T1(CON diet added with active water), T2 (T1 diet added with 1.0% premixed mineral). Used ion water and premixed mineral were consisted mainly of Zn and Si, respectively. Daily weight gain feed efficacy were the highest in T2, while fat content was the highest in control (p<0.05) than the others. However, the slaughter qualities including dressing percent, backfat thickness, marbling score, meat color, meat texture, drip loss, meat separation and meat qualities including pH, cooking loss, water holding capacity (WHC), shear force, meat color, backfat color, meat texture were not significantly different (p>0.05) among the treatment groups. Panel test scores of tenderness were the highest in T2 compared to the others.

연구논문 : 돈육의 품질 특성에 미치는 생균제 급여 효과

진상근 ( Sang Keun Jin ),김일석 ( Il Suk Kim ),송영민 ( Young Min Song ),박기훈 ( Ki Hoon Park ),하지희 ( Ji Hee Ha ),강석모 ( Seoc Mo Kang ),김인진 ( In Jin Kim ),김정화 ( Jeong Hwa Kim ),박용수 ( Yong Su Park ),이창범 ( Chang Bu 한국국제농업개발학회 2006 韓國國際農業開發學會誌 Vol.18 No.2

들국화분말, 생균제 및 Selenium 복합 급여가 비육기 돈육의 육질 특성에 미치는 영향

진상근,김일석,허인철,최승연,유기옥,김진근,강석남,Jin, Sang-Keun,Kim, Il-Suk,Hur, In-Chul,Choi, Seung-Youn,Yu, Ki-Ok,Kim, Jin-Gun,Kang, Suk-Nam 한국축산식품학회 2009 한국축산식품학회지 Vol.29 No.1

This study was conducted to determine the effect of feeding complex of wild chrysanthemum powder, probiotics and selenium on meat quality in finishing pigs ($LY{\times}D$). 25 pigs were randomly alloted to two treatments; C (basal diet), T (C diet added 0.3% wild chrysanthemum powder, 0.1% probiotics and 0.1% selenium). Pigs were slaughtered at approximately 110 kg final weight and chemical composition, physico-chemical characteristics, fatty acid composition and sensory test were measured in pork loin. Proximate composition, pH, water holding capacity, cooking loss, shear force and color were no differences among the tested samples. Texture properties of hardness in treatment were significantly higher than the control (p<0.05). Fresh meat of overall acceptance and cooked meat of tenderness, juiciness and overall acceptability in T were significantly higher than the control. Fatty acid compositions of myristic acid, palmitoleic acid, oleic acid, unsaturated fatty acid and monounsaturated fatty acid in T were significantly higher than the control.

원료육의 혼합비율에 따른 게맛 어육소시지의 조직학적 및 관능적 특성

진상근,김일석,남영욱,박성찬,최승연,양한술,최영준,Jin, Sang-Keun,Kim, Il-Suk,Nam, Young-Wook,Park, Seong-Chan,Choi, Seung-Yun,Yang, Han-Sul,Choi, Young-Joon 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.4

This study was carried out to compare the textural properties of crab-flavored sausage manufactured with six different formulations. We prepared crab-flavored sausage from Alaska pollack surimi as a control by the washing method, and various mixtures of surimi and chicken breast meat were manufactured (pH 11.0) with 33.33% chicken breast meat (CBM) (T1), 50% CBM (T2), 66.66% CBM (T3), 100% CBM (T4) and 20% commercial mechanically deboned chicken meat (MDCM) (T5). Brittleness, gumminess, chewiness, breaking force, gel strength, jelly strength, sensory flavor. texture, and overall acceptability were significantly lower in the formulations containing chicken meat in proportion to the % CBM (p<0.05). However, cohesiveness and springiness were significantly higher in the formulations containing chicken meat in proportion to the amount of CBM (p<0.05). Folding test and deformation values were significantly lower in the surimi manufactured with CBM at pH 11.0. although T5 showed no significant differences relative to the control. Overall, these results indicate that similar textural properties in the crab-flavored sausage were attained when surimi was prepared with 20% CBM and MDCM.