• 제목/요약/키워드: fatty meats

검색결과 96건 처리시간 0.029초

Relationships between Single Nucleotide Polymorphism Markers and Meat Quality Traits of Duroc Breeding Stocks in Korea

  • Choi, J.S.;Jin, S.K.;Jeong, Y.H.;Jung, Y.C.;Jung, J.H.;Shim, K.S.;Choi, Y.I.
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권9호
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    • pp.1229-1238
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    • 2016
  • This study was conducted to determine the relationships of five intragenic single nucleotide polymorphism (SNP) markers (protein kinase adenosine monophosphate-activated ${\gamma}3$ subunit [PRKAG3], fatty acid synthase [FASN], calpastatin [CAST], high mobility group AT-hook 1 [HMGA1], and melanocortin-4 receptor [MC4R]) and meat quality traits of Duroc breeding stocks in Korea. A total of 200 purebred Duroc gilts from 8 sires and 40 dams at 4 pig breeding farms from 2010 to 2011 reaching market weight (110 kg) were slaughtered and their carcasses were chilled overnight. Longissimus dorsi muscles were removed from the carcass after 24 h of slaughter and used to determine pork properties including carcass weight, backfat thickness, moisture, intramuscular fat, $pH_{24h}$, shear force, redness, texture, and fatty acid composition. The PRKAG3, FASN, CAST, and MC4R gene SNPs were significantly associated with the meat quality traits (p<0.003). The meats of PRKAG3 (A 0.024/G 0.976) AA genotype had higher pH, redness and texture than those from PRKAG3 GG genotype. Meats of FASN (C 0.301/A 0.699) AA genotype had higher backfat thickness, texture, stearic acid, oleic acid and polyunsaturated fatty acid than FASN CC genotype. While the carcasses of CAST (A 0.373/G 0.627) AA genotype had thicker backfat, and lower shear force, palmitoleic acid and oleic acid content, they had higher stearic acid content than those from the CAST GG genotype. The MC4R (G 0.208/A 0.792) AA genotype were involved in increasing backfat thickness, carcass weight, moisture and saturated fatty acid content, and decreasing unsaturated fatty acid content in Duroc meat. These results indicated that the five SNP markers tested can be a help to select Duroc breed to improve carcass and meat quality properties in crossbred pigs.

Lipid Oxidation in Red and Poultry Meats

  • Rhee Choi, Ki-Soon
    • 한국축산식품학회:학술대회논문집
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    • 한국축산식품학회 2003년도 제31차 춘계 학술대회
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    • pp.1-14
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    • 2003
  • Lipid oxidation is one of the most important non-microbial causes of meat quality deterioration. However, there have been different/conflicting views concerning the primary catalysts of lipid oxidation in meat. This presentation provides brief overviews of lipid oxidation mechanism in general and catalysis of lipid oxidation in meat, and then focuses on inter-species differences in lipid oxidation potential, using results from our studies on meats (beef, pork and chicken) at retail and the respective meats of uniform postmortem history. The inter-species differences have highlighted the relative roles of meat pigment (myoglobin) content, catalase activity, and the concentration of oxidation substrates (particularly polyunsaturated fatty acids) in determining the lipid oxidation potential of raw meat versus cooked meat.

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Quantitative Trait Loci and Candidate Genes Affecting Fatty Acid Composition in Cattle and Pig

  • Maharani, Dyah;Jo, Cheo-Run;Jeon, Jin-Tae;Lee, Jun-Heon
    • 한국축산식품학회지
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    • 제31권3호
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    • pp.325-338
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    • 2011
  • Investigations into fatty acid composition in meats are becoming more important due to consumer demand for high quality healthy food. Marker-assisted selection has been applied to livestock to improve meat quality by directly selecting animals for favorable alleles that affect economic traits. Quantitative trait loci affecting fatty acid composition in cattle and pigs were investigated, and five candidate genes (ACACA, FASN, SCD, FABPs, and SREBP-1) were significantly associated with fatty acid composition. The information presented here should provide valuable guidelines to detect causative mutations affecting fatty acid composition in cattle and pigs.

닭고기의 성분조성에 미치는 감귤껍질 급여의 영향 (Effects of Feeding Citrus Peels on Nutritional Composition of Chicken Meat)

  • 정인철;문윤희
    • 생명과학회지
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    • 제19권8호
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    • pp.1081-1087
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    • 2009
  • 본 연구는 감귤껍질 첨가 사료를 급여한 닭고기의 성분조성을 검토하기 위하여 실시하였다. 닭고기는 초기, 중기 및 후기 모두 감귤껍질을 첨가하지 않은 육계용 배합사료로 사육한 CP-0, 그리고 초기(1${\sim}$9일), 중기(10${\sim}$24일) 및 후기(25${\sim}$36일) 사료에 감귤껍질을 각각 1.0%, 1.5% 및 2.0%를 첨가하여 급여한 CP-1으로 구분하였다. 일반성분 및 열량은 감귤껍질 급여의 영향이 없었으나 콜레스테롤 함량은 CP-0 보다 CP-1이 유의하게 낮았다 (p<0.05). K, P 및 ca는 CP-1이 CP-0보다 함량이 높았으나 Na 및 Mg는 CP-0 및 CP-1 사이에 유의한 차이가 없었다. 비타민 A, xanthophyll, ${\beta}$-carotene, hesperidin 및 naringin은 감귤껍질 급여의 영향이 없었지만 비타민 $B_1$$B_2$는 감귤껍질을 급여한 닭고기가 유의하게 높았다(p<0.05). 아미노산 조성은 CP-0 및 CP-1 사이에 유의한 차이가 없었으며, 대부분의 유리아미노산도 유의한 차이가 없었으나 유리아미노산 중 L-glutamic acid는 CP-0가 CP-1보다 높았고, DL-${\beta}$-amino isobutyric acid는 CP-1이 더 높았다(p<0.05). 그리고 지방산 조성은 CP-0와 CP-1 사이에 유의한 차이가 없었다.

귀뚜라미 첨가 사료가 계육과 계란의 성분에 미치는 영향 (Effects of Cricket Supplements of the Chicken Meats and Its Eggs)

  • 안미영;류강선;박범영;김동운;김익수;김상호
    • 한국가금학회지
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    • 제27권3호
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    • pp.197-202
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    • 2000
  • Chemical characteristics of the cricket, Gryllus bimaculatus, were investigated in total composition, amino acid composition, fatty acid composition and mineral components. After the treatment of 0.4% of G. bimaculatus in the chicken feed, the changes of fatty acid composition in the chicken meat and egg were also estimated. As the result, saturated fatty acid, especially palmitic acid, decreased 4% and unsaturated fatty acids, linoleic aced and arachidonic acid, increased 12 and 23%, respectively, compared with those of control. In addition, there was a small increase in Eicosapentaenoic acid(EPA). The sensory test of the chicken meat resulted in increased flavor, brightness and yellow color. The sensory scores of G. bimaculatus egg in the point of taste resulted in somewhat better estimate than control. These results are appear to be stemmed from fatty acids of cricket.

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시중 유통 토종닭의 품종별 품질 및 관능 특성 비교 (Comparison of Meat Quality and Sensory Characteristics of Different Native Chickens in Korean Market)

  • 차주수;김선효;정사무엘;강호진;조철훈;남기창
    • 한국가금학회지
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    • 제41권1호
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    • pp.53-59
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    • 2014
  • 본 실험에서는 시중에서 주로 유통되고 있는 2종의 토종닭인 HH종과 WD종 닭고기를 비교하기 위해 일반 육계(BR)와 더불어 육질 및 관능 특성을 분석하였다. 토종닭 내에서 HH종의 가슴육만 일반 육계보다 다소 낮은 지방함량을 보였다. 육색에서는 가슴육과 다리육 두 부위 모두에서 HH종의 명도($L^*$)와 적색도($a^*$)가 WD종보다 유의적으로 높게 나타났다(p<0.05). 항산화력 측정을 위한 DPPH 라디칼 소거능과 pH가 WD종이 HH종보다 유의적으로 높았다(p< 0.05). 가슴육에서 C18:1은 일반 육계가 다른 두 품종의 토종닭보다 유의적으로 높았다(p<0.05). 대표적인 n-3 지방산인 C18:3의 경우, WD종이 HH종보다 유의적으로 높았으며(p<0.05), C20:4와 C22:6의 경우, 토종닭이 일반 육계에 비해 약 2.5배이상 높은 조성을 보였다(p<0.05). 관능평가 맛 부분에서는 가슴육에서 WD종이 일반 육계나 다른 HH 토종닭보다 유의적으로 우수한 수치를 보였다(p<0.05). 특히 WD종의 연도가 다른 품종에 비해 매우 우수한 것으로 나타났으며(p<0.05), 전체적인 기호도에서도 WD종이 유의적으로 높은 점수를 보였다(p<0.05). 국내에서 대표적으로 시판되는 토종닭 2품종의 품질 및 관능 특성은 요인별로 유의적 차이를 보이기도 했으며(p<0.05), 이를 바탕으로 소비자 기호에 적합한 새로운 품종의 토종닭 개발을 위한 기초 자료 활용이 가능할 것이다. 그러나 육질 특성은 품종 이외에도 급여한 사료 및 사양 방식에 따라 다른 것이므로, 보다 많은 시료 수를 바탕으로 한 추가적인 연구가 요구된다.

한국인의 식품 중 트란스 지방산의 함량과 섭취량 추정 (Contents and Estimated Intakes of Trans Fatty Acids in Korean Diet)

  • 김종희;장경원;신효선
    • 한국식품과학회지
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    • 제32권5호
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    • pp.1002-1008
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    • 2000
  • 한국인 트란스 지방산 섭취량을 산출하는데 필요한 데이타 베이스 구축을 위한 기초자료를 제공할 목적으로 트란스 지방산의 주요 급원 식품인 마가린 25종, 쇼트닝 21종, 식물성 식용유지 19종, 제과류 53종, 제빵류 18종, 낙농제품 19종, 동물성 유지 및 육류 9종 등 총 164종에 대하여 트란스 지방산의 함량을 GLC에 의하여 정량하였다. 또한 이들 식품의 1회 분량당 트란스 지방산의 평균 함량을 산출하였고, 한국인 1인당 1일 트란스 지방산 섭취량을 추정하였다. 지방 100g당 트란스 지방산의 함량은 마가린 $2.11{\sim}33.83%$(평균 14.66%), 쇼트닝 $1.47{\sim}44.48%$(평균 14.21%), 식물성 식용유지 $0.18{\sim}3.82%$(평균 1.54%), 제과류 $0{\sim}45.81%$(평균 10.92%), 제빵류 $0{\sim}18.32%$(평균 7.87%), 낙농제품 $0.90{\sim}4.54%$(평균 2.27%), 동물성 유지 및 육류 $0.61{\sim}6.07%$(평균 2.24%)였다. 이들 시료 중 트란스 지방산 이성질체는 대부분이 $C_{18:1}$$C_{18:2}$였다. 1회분량당 트란스 지방산의 평균 함량은 마가린 0.74g, 쇼트닝 0.71g, 식물성 식용유지 0.08g, 제과류 0.57g, 제빵류 0.66g, 낙농제품 0.15g, 동물성 유지 및 육류 0.13 g이었다. 한국인의 1인당 1일 총 트란스 지방산 평균 섭취량은 약 2.3g였으며, 마가린에서 0.35g, 쇼트닝에서 0.57g, 식물성 식용유지에서 0.11g, 제과류에서 0.65g, 제빵류에서, 0.07g, 낙농제품에서 0.14g, 동물성 유지 및 육류에서 0.21g을 각각 섭취하는 것으로 추정되었다.왔다.시판 프로타민은 $470\;{\mu}g/mL$였다.는 않았다.정성을 나타내었으며, pH 9.0 및 $25^{\circ}C$의 분산매내에서 7일간 저장후에도 99% 이상의 미세캡슐이 안정한 상태로 존재함을 알 수 있었다.값을 나타내었으며, 24시간 경과 후 겔을 형성하여 겔화제로서의 이용 가능성을 보여주었다. 항산화 효과는 뚜렷한 상관관계가 발견되지 않았다.CaSO_4$, GDL, $MgCl_2$, $Ca-gluconate+MgCl_2$, $GDL+CaSO_4$ 첨가구는 0.3%에서, 그리고 $Ca-gluconate+CaSO_4$ 첨가구는 0.4%에서 높게 나타났으며 그 중 0.3% $GDL+CaSO_4$ 첨가구가 적당한 경도를 가지면서도 부드럽고 고소한 맛이 강하여 가장 높은 기호도를 나타내었다.cids은 $190^{\circ}C$까지는 $2.51{\sim}4.41$ ppm으로 거의 변화를 보이지 않다가 $210^{\circ}C$에서 18.92 ppm으로 급증하였고, 이후 $220^{\circ}C$에서 7.20ppm, $230^{\circ}C$에서 5.56 ppm으로 점진적으로 감소하였다. 이는 nonanoic acid, palmitic acid, stearic acid등이 고온가열에 의해 생성되었다가 이들이 열분해로 소실되었기 때문으로 생각된다.평균치는 34점이었으며 여윔에서는 너무 살찜으로 갈수록 사회적 체형불안도가 상승하는 경향을 나타내었다. 후쿠오카 지역의 체형 불안 도가 대구지역보다 유의적으로 높았다. 한 일 여대생의 자기 체형인식 및 체형 불안도에 관한 비교연구에서 한국여대생이 일본여대생보다 평균 신장은 크고 평균체중은 적으며 이상적으로 생각하는 신장은 한국이

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심장병 예방을 위한 한국 식사의 우수성 (Superiority of Korean Diet for Prevention of Cardiovascular Diseases)

  • 유태우
    • 한국건강관리협회지
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    • 제3권1호
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    • pp.1-12
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    • 2005
  • We compared three nations' diets on Year 2000 Korean, American and Mediterranean in the aspect of contribution of each to the development of cardiovascular diseases. We searched all the available evidences published. Korea has a very low incidence of cardiovascular diseses compared to the other countries even though they are increasing recently. In addition to many risk factors to these defenerative diseases such as diabetes millitus, hypertension, smoking, hyperlipidemia, sedentary lifestyle, etc., dietary factors are also contributing a lot to their development. High calorie, trans fatty acids, cholesterol, saturated fatty acids, alcohol, salt intakes are examples. Korean diet has superiority of low calorie, low fat, good fat proportion, high omega-3 fatty acids, vegetables, beans, and garlic and onions These are believed to contribute to low incidence of cardiovascular diseases in Korea. Korean diets was also found to have some issues for improvement such as high salt, low calcium, and higher use of barbequed meats. We concluded Korean people stay better off with Korean diet with some modifications.

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A Comparison of Meat Characteristics between Duck and Chicken Breast

  • Ali, Md. Shawkat;Kang, Geun-Ho;Yang, Han-Sul;Jeong, Jin-Yeon;Hwang, Young-Hwa;Park, Gu-Boo;Joo, Seon-Tea
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권6호
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    • pp.1002-1006
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    • 2007
  • Twenty four broilers (Ross) and 24 ducklings (Cherry berry) aged 45days were stunned and killed by conventional neck cut to evaluate the meat characteristics and fatty acid composition of breast meat. Breast meats were removed from each carcass at different post-mortem times. After complete processing, the breast meats were then placed in a polythene bag and kept in a cold storage room at $4^{\circ}C$ for 7 days. The pH of meat samples at different post-mortem times, and meat characteristics and fatty composition at different storage times were evaluated. No significant differences were found in pH at different post-mortem times except at 30 min postmortem, where duck breast showed significantly lower pH than chicken breast. As expected, duck breast meat had significantly higher redness (a*), but lower lightness (L*) value compared to chicken breast. During whole storage time, the a* value remained constant in duck breast. Cooking loss (%) was higher in duck breast compared to chicken breast during the whole storage time. Shear force decreased with increasing storage time in both chicken and duck breast meat, moreover, it decreased rapidly in duck breast compared to chicken breast. The TBARS values increased with increasing storage time in both duck breast and chicken breast meat and was significantly higher in duck breast. The fatty acids (%) C14:0, C16:0, C16:1, C18:2 and C18:3 were significantly higher while C18:0 was significantly lower in duck breast compared to chicken. SFA was increased, while USFA and MUSFA decreased only in duck breast during the 7 day storage time.

닭고기 냉동저장과 조리법이 지질의 산패에 미치는 영향 (Effect of Frozen Storage and Cooking Methods on Lipid Oxidation in Chicken White and Legs Meat)

  • 최재희;이숙미;조정순
    • 한국응용과학기술학회지
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    • 제10권2호
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    • pp.49-56
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    • 1993
  • The effect of frozen storage and cooking methods on lipid oxidation in chicken meat was studied. Chicken meats were stored 0, 30, 60, 90, 120 days at $-18^{\circ}C$ and were evaluated before and after cooking. 1. The crude fat content of chicken meat is the highest thigh meat with skin in microwaving. Fat content was increased duting 30 days of frozen storage, and then after. 2. Peroxide value, acid value and TBA value was increased during the days of storage because lipid autoxidation was processed cooking and during frozen storage time. The peoxide value and acid value were higher compared to sample cooked by other methods. 3. The fluoresence units were increased with frozen storage, and initial levels of fluoresent after processing. 4. The fatty acid composition of chicken meat fats is mainly palmitic acid and oleic acid, and the effect of frozen storage and meats part is not significantly change but fatty acid significantly change according to frying that linoleic acid was increased during frozen time. From all the results obtained in this study it can be conclude that lipid autoxidation of the chicken meat frozen storage at $18^{\circ}C$ was consistantly processed, and breast meat oxidation was increased than thigh meat because chicken breast meat include many polyunsaturated fatty acid. Frying was significantly increased highest than other cooking methods.