• 한국축산식품학회지
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• 제37권1호
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• pp.18-28
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• 2017

Pastirma is a dry-cured meat product, produced from whole beef or water buffalo muscles. This study was carried out to investigate the effect of production stages (raw meat, after curing, after $2^{nd}$ drying and pastirma) on the total lipid, neutral lipid, phospholipid and fatty acid composition of phospholipid fraction of pastirma produced from beef M. Longissimus dorsi muscles. The pH and colour ($L^*$, $a^*$ and $b^*$) analyses were also performed in raw meat and pastirma. It was found that pastirma production stages had significant effects (p<0.01) on the total amounts of lipid, neutral lipid and phospholipid, and the highest amounts of lipid, neutral lipid and phospholipid were detected in pastirma. In pastirma, neutral lipid ratio was determined as $79.33{\pm}2.06%$ and phospholipid ratio as $20.67{\pm}2.06%$. Phospholipids was proportionately lower in pastirma than raw meat. Pastirma production stages affected pentadecanoic acid (15:1) (p<0.01), linoleic acid (18:2n-6) (p<0.05), ${\gamma}-linoleic$ acid (18:3n-6) (p<0.05), erucic acid (22:1n-9) (p<0.05), docosapentaenoic acid (22:5n-6) (p<0.05), total unsaturated fatty acid (${\Sigma}USFA$) (p<0.05) and total saturated fatty acid (${\Sigma}SFA$) (p<0.05) ratios of phospholipid fraction and also the moisture content (p<0.01). Pastirma process also affected pH and colour ($L^*$, $a^*$ and $b^*$) values (p<0.01), and these values were higher in pastirma than raw meat.

• 대한수의학회지
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• 제48권1호
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• pp.75-81
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• 2008

The rapid evolution of antibiotic resistance in Staphylococcus (S.) aureus is of considerable concern. Methicillin-resistant S. aureus (MRSA) strains are especially one of the greatest public concerns since the treatment of infections is more difficult when encountering resistance. In this study, we conducted a nationwide survey on the antimicrobial resistance of S. aureus isolated from raw meat samples collected from 16 countries, including Korea, and investigated the prevalence of MRSA as a possible source of human infection. Of 1,984 meat samples, S. aureus was isolated from 218 (11.0%) samples consisting of 23 (12.1%) from domestic meat and 195 (10.9%) from imported meat. The isolation rates of poultry meat, pork and beef were 12.8%, 7.0% and 10.0%, respectively. With regard to imported meat, the incidence varied from 4.8% to 16.6% from 13 countries, with the exception of Austria and Poland. In a resistance test to 20 antimicrobial agents, one hundred and eighty-four isolates (84.4%) were resistant to one or more antimicrobial agents tested. Especially, 17 (7.8%), 124 (56.9%) and 28 (12.8%) isolates showed a resistance to 3, 2 and 1 drugs, respectively. One isolate originating from domestic beef was resistant to 7 drugs. Another isolate originating from imported poultry meat showed resistance to oxacillin and methicillin by the disk diffusion test and minimal inhibition concentration methods, but showed negative for detection of the mecA gene.

• 한국축산식품학회지
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• 제41권1호
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• pp.135-144
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• 2021

This study determined the antibiotic resistance patterns of Escherichia coli and Staphylococcus aureus from the raw meat and feces of three game species from three different farms across South Africa. The Kirby-Bauer disk diffusion method was used according to the Clinical and Laboratory Standards Institute 2018 guidelines. E. coli was tested against ampicillin, ceftazidime, chloramphenicol, streptomycin, sulphafurazole and tetracycline. S. aureus was tested against tetracycline, erthromycin, vancomycin, penicillin, oxacillin and cefoxitin. There were no significant differences in the E. coli antibiotic resistance profiles between the meat and fecal samples (except towards ceftazidime where 5% of the meat isolates were resistant and 0% of the fecal isolates). The S. aureus meat isolates showed high (75%) resistance towards penicillin and on average, 13% were resistant to oxacillin/ cefoxitin, indicating methicillin resistance. The results from this study indicate that there is incidence of antibiotic resistant bacteria from the feces and meat of wildlife species across South Africa, suggesting that cross contamination of the meat occurred during slaughter by antibiotic resistant bacteria from the abattoir personnel or equipment and or from carcass fecal matter. In addition, the results highlight the importance of food safety and hygiene procedures during slaughter to prevent cross-contamination of antibiotic resistant bacteria, as well as pathogens, onto raw meat.

• 한국수산과학회지
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• 제18권4호
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• pp.339-351
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• 1985

정어리를 원료로 하여 어묵을 제조하는 최적가공조건을 밝히기 위하여, 원료어의 저장조건 및 선도, 원료육의 수세조건, 알칼리 세척처리, 원료육의 혈합육비율, 고기풀의 setting조건, 가열온도 및 시간, 냉동고기풀의 저장 기간 등이 어묵형성능 및 어묵의 물성에 미치는 영향에 대하여 연구검토하였다. 1. 원료어를 $25^{\circ}C$에 저장한 경우는 선도 및 어묵 형성능의 저하가 급격하여 15시간만에 VBN함량은 초기 부패점에 달하였고, 5시간 저장한 것으로 만든 어묵의 겔강도는 대조구의 약 1/2을 나타내었으며, 빙장을 하는 경우도 어묵형성능의 저하는 비교적 빨라 저장 2일째의 것으로 만든 어묵의 겔강도는 대조구의 약 1/2로 감소하였다. $-3^{\circ}C$에서 partial freezing을 하는 경우와 특히 $-20^{\circ}C$에서 동결저장하는 경우는 어묵형성능의 저하가 비교적 완만하여 저장 2일째의 것으로 만든 어묵의 겔강도는 전자는 대조구의 약 $75\%$, 후자는 약 $96\%$를 나타내었다. 2. 원료육의 수세처리에 있어 3회 수세를 한 것이 어묵형성능이 가장 양호하였고, 5회 이상의 수세를 하는 경우는 어묵의 물성이 약간 떨어지는 경향을 나타내었다. 3. 원료육의 알칼리 세척은 어묵형성능의 증강에 효과적이었으며, $0.5\%$ 탄산수소나트륨용액으로 세척하는 경우가 가장 양호하였고 $0.7\%$ 이상의 알칼리 농도에 있어서는 어묵물성이 떨어지는 결과를 나타내었다. 4. 원료육의 혈합육 비율이 많아질 수록 어묵물성은 떨어졌으나, 혈합육의 비율이 $5\%$ 까지는 어묵물성이 비교적 양호하여 겔강도의 경우 보통육만으로 만든 어묵의 $72\%$ 강도를 나타내었으며, $15\%$ 이상이 되면 어묵물성은 크게 떨어지는 결과를 보였다. 5. 고기풀의 setting조건은 $5^{\circ}C$에서는 20시간, $30^{\circ}C$에서는 2시간 처리하는 경우가 어묵형성능이 가장 양호하였으며, 처리시간이 더욱 길어져도 어묵형성능은 증강되지 않았다. 6. 원료육의 가열조건은 $90^{\circ}C$에서 40분간 처리하는 경우가 어묵형성능이 가장 양호하였고, $80^{\circ}C$이하 및 $100^{\circ}C$에서 40분간 처리한 것은 어묵형성능이 떨어지는 결과를 나타내었다. 7. 냉동고기풀의 어묵형성능은 $-30^{\circ}C$에서 30일간 저장한 것은 큰 변화가 없었으나, 40일 이상이 되면 약간의 열화가 일어나 50일 저장의 것은 겔강도가 대조구의 약 $85\%$를 나타내었다.

• 한국가금학회지
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• 제31권1호
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• pp.45-54
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• 2004

The consumption of poultry meat (chicken and turkey) grew the most during the past few decades due to several contributing factors such as low price, product research and development, favorable meat characteristics, responsive to consumer needs, vertical integration and industry consolidation, new processing equipments and technology, and aggressive marketing. The major processing technologies developed and used in chicken processing include forming/restructuring, tumbling, curing, smoking, massaging, injection, marination, emulsifying, breading, battering, shredding, dicing, and individual quick freezing. These processing technologies were applied to various parts of chicken including whole carcass. Product developments using breast, thigh, and mechanically separated chicken meat greatly increased the utilization of poultry meat. Chicken breast became the symbol of healthy food, which made chicken meat as the most frequent menu items in restaurants. However, the use of and product development for dark meat, which includes thigh, drum, and chicken wings were rather limited due to comparatively high fat content in dark meat. Majority of chicken are currently sold as further processed ready-to-cook or ready-to-eat forms. Major quality issues in chicken meat include pink color problems in uncured cooked breast, lipid oxidation and off-flavor, tenderness PSE breast, and food safety. Research and development to ensure the safety and quality of raw and cooked chicken meat using new processing technologies will be the major issues in the future as they are now. Especially, the application of irradiation in raw and cooked chicken meat products will be increased dramatically within next 5 years. The market share of ready-to-eat cooked meat products will be increased. More portion controlled finished products, dark meat products, and organic and ethnic products with various packaging approaches will also be introduced.

• Asian-Australasian Journal of Animal Sciences
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• 제29권12호
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• pp.1782-1789
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• 2016

This study evaluated the effect of vacuum and modified atmosphere (40% $CO_2+60%$ $N_2$, MA) packaging on the chemical composition, physicochemical properties and sensory attributes of chill-stored meat from 10 fallow deer (Dama dama) bucks at 17 to 18 months of age. The animals were hunter-harvested in the forests of north-eastern Poland. During carcass dressing (48 to 54 h post mortem), both musculus longissimus muscles were cut out. Each muscle was divided into seven sections which were allocated to three groups: 0, A, and B. Samples 0 were immediately subjected to laboratory analyses. Samples A were vacuum-packaged, and samples B were packaged in MA. Packaged samples were stored for 7, 14, and 21 days at $2^{\circ}C$. The results of the present study showed that the evaluated packaging systems had no significant effect on the quality of fallow deer meat during chilled storage. However, vacuum-packaged meat samples were characterised by greater drip loss. Vacuum and MA packaging contributed to preserving the desired physicochemical properties and sensory attributes of meat during 21 days of storage. Regardless of the packaging method used, undesirable changes in the colour, water-holding capacity and juiciness of meat, accompanied by tenderness improvement, were observed during chilled storage.

• 한국축산식품학회지
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• 제36권2호
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• pp.283-288
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• 2016

The objective of this study was to investigate the microbial count of duck meat and duck meat products commercially available in Korea. High hydrostatic pressure (HHP) treatment was applied at 0.1, 300, 400, and 500 MPa for 5 min to enhance the microbiological safety of duck meats. The levels of total aerobic bacteria were in the ranges of 3.53-6.19 and 3.62-6.85 Log CFU/g in raw and smoked duck products, respectively. By DNA sequence analysis, we identified microorganisms responsible for spoilage, with the most common species in the raw and smoked duck products being Aeromonas spp. or Pseudomonas spp. and Leuconostoc mesenteroides, respectively. HHP treatment significantly reduced the levels of total aerobic bacteria in raw and smoked duck products. This study demonstrates that HHP treatment may be used to effectively improve the safety of raw and smoked duck meat products.

• Nutritional Sciences
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• 제3권2호
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• pp.66-70
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• 2000

The study was conducted to determine the nutiritional value of Masoor (Lens esculenta) in raw and cooked forms. Supplement value of various types of meat i.e. poultry, mutton and beef at 10, 15, and 20 percent levels for dite containing cooked Masoor was also assessed. Nutritional value of Masoor was determined by chemical analysis as well as through rat assay. Masoor contained an average of 23.18 percent protein and less than two percent fibre. Conventional method of cooking resulted in about 2 per cent increase in Masoor protein. Masoor had 0.83 percent of lysine and cooking destroyed 18 percent of it. Other amino acids in Masoor also showed losses on cooking. Protein efficiency ratio (PER) of diets containing raw Masoor was 1.49 and was reduced to 1.44 by cooking. Cooking of Masoor did not alter true digestibility (TD) percentage. However, net protein utilization (NPU) was improved from 44.60 in raw to 47.77 in cooked. Diets containing cooked Masoor and supplemented with different types of meat significantly improved PER (1.45 to 1.65), TD 76.03 to 87.84 percent and NPU 42.84 to 50.72 percent over non supplemented diets. 20 percent level of supplemented meat showed comparatively better results than other levels in case of improvement in PER, TD and NPU.

• 한국동물위생학회지
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• 제38권4호
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• pp.259-264
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• 2015

We investigated the residues of 6 cephalosporins (cefquinome, cephalexin, cephalonium, cefazolin, ceftiofur, cefuroxime) using LC-MS/MS in raw meat in Seoul. This method involves extraction of the residue from the meat by distilled water and methanol followed by a manual of residue analysis published by the National Institute of Food and Drug Safety Evaluation. The recoveries ranged between 74.71~90.01% in beef, 73.37~101.40% in pork and 70.87~95.53% in chicken, respectively. The limits of detection were 0.0004~0.0563 mg/kg, and the limits of quantification were 0.001~0.169 mg/kg respectively. Residues of cephalosporins which exceeded maximum residue limits (MRL) were not exceed in any of the 287 samples. However, it is necessary to develop multi-method, which includes the active metabolites of ceftiofur.

• 한국식품과학회지
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• 제25권5호
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• pp.475-480
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• 1993

본 연구는 육류등급제 시행에 따라 유화형 소시지 제조시 원료육의 일반성분과 기능성 규명을 통해서 최소사격배합에 입력자료로서 사용될 원료육의 결착지수를 국내 실정에 맞도록 추정하고자 실시하였다. 각 원료육의 일반성분, 기능성 및 육색소 함량은 축종별 부위별로 다양한 수치를 보였으며 원료육의 결착력(cohesiveness)과 높은 상관산계를 갖는 것이 많았다. 특히 수분, 단백질함량과는 정의 상관관계를, 지방함량과는 부의 상관관계를 나타냄으로써 단지 일반성분 분석치만으로도 원료육의 결착성 추정을 위한 회귀식 산출이 가능하였다. 따라서 분석기기가 갖추어지지 않은 공장현장에서도 최소가격배합에 필요한 결착지수의 추정이 가능하며 기존의 결착지수가 밝혀지지 않은 원료육의 결착지수 추정도 가능하였다.