• 한국축산식품학회지
• /
• 제18권3호
• /
• pp.261-268
• /
• 1998

In beef, the composition of saturated and unsaturated fatty acids(UFA) were 41.1% and 56.7%, respectively. The rates of saturated fatty acid (SFA) was 36.3, 40.9, 39.2 and 48.1% in loin, picnic shoulder, ham and rib, respectively. However, UFA showed 62.3, 58.4, 56.8, 50.9% in loin, picnic shoulder, ham and rib, respectively. The rates of monounsaturated fatty acid (MUFA) were similar to those of unsaturated fatty acid in four portions. The content of SFA, UFA and polyunsaturated fatty acid(PUFA) were 40, 59 and 9.4%, respectively, in pork. In portional comparison, composition of unsaturated fatty acids in picnic shoulder, ham rib and loin were 64.2, 60.4, 54.6 and 55.3%, respectively. The UFA contents of rib and loin were lower than picnic shoulder and ham, but SFA levels were higher. Total UFA content of chicken was 62.9% showing higher level than other species, but low when compared to that of duck meat. SFA content resulted in lower level than other portions. In the skin of chicken, MUFA content was especially high showing no significant changes in UFA contents. Duck meat showed lower SFA content, but higher content in UFA compared to those of other species. Skin and thigh contained 31.8 and 31.5%, respectively, in SFA, which are lower level than those of breast and thigh meat. The UFA contents of skin and thigh were 67.4 and 67.7%, respectively, which are relatively high compared to those of other portions. Meanwhile, the ratio of UFA was not high in canis meat compared to other meat. PUFA was, however, 24.2% showed significantly different from other meats. The contents of SFA were 35.4% and 35.9%, respectively, in picnic shoulder and ham. They showed lower SFA but higher UFA content than those of rib and loin. In contrast, the ratio of picnic shoulder and ham were 61.6 and 61.4%, respectively. Interestingly, picnic shoulder showed higher UFA content, especially in arachidonic acid level than other portions.

• 한국축산식품학회지
• /
• 제41권4호
• /
• pp.674-686
• /
• 2021

This study aimed to enhance the quality of broiler breast meat by adding pig skin collagen to feed. A total of 50 Ross 308 broilers were classified according to the following feeding regime for two weeks: basal diet (NC), basal diet+0.1% fish collagen (PC), basal diet+0.1% pig skin collagen (T1), basal diet+0.5% pig skin collagen (T2), and basal diet+1.0% pig skin collagen (T3). The moisture content was the highest in the PC group, and the protein content was the lowest in the T1 group (p<0.05). The fat content was higher in the T1 and PC groups, whereas the ash content was higher in the T3 group (p<0.05). Drip loss was the highest in the NC group and the lowest in the T2 group (p<0.05). Lightness was low in groups T2 and T3, redness was low in groups T2 and PC, and yellowness was low in groups T1, T2, and PC (p<0.05). The collagen content of the chicken breast was the highest in the T3 group, and that of the skin was the highest in the T1 group (p<0.05). The texture characteristics of springiness, cohesiveness, chewiness, and hardness were the highest in the T3 group (p<0.05). In conclusion, the supplementation of a broiler diet with pig skin collagen was found to increase the collagen content of the breast meat, indicating the improved quality of the broiler breast meat.

• Asian-Australasian Journal of Animal Sciences
• /
• 제23권6호
• /
• pp.799-805
• /
• 2010

Since the consumption of spent laying hens as roasted skewered meat increases, the effects of various carotenoids on pigmentation and antioxidant activity were tested with 62-wk-old 250 ISA brown laying hens to improve the quality of chicken meat. In a 6-wk feeding trial, 4 carotenoids with different polarity (${\beta}$-8-apo-carotenoic acid ethyl ester (ACAEE)>astaxanthin>canthaxanthin>${\beta}$-carotene) at 100 mg carotenoid/kg feed were used. The more polar the carotenoids, the higher were the levels in blood. After 5-wk adaptation, the concentrations of astaxanthin, canthaxanthin, and ACAEE in blood were -4 ${\mu}g/ml$. Canthaxanthin decreased significantly (p<0.05) the level of total blood cholesterol. Decreases in blood triglyceride by all carotenoids used were significant. ACAEE and astaxanthin tended to increase skin yellowness of thigh, breast, and wing proportionally to feeding period. In the case of polar carotenoids (ACAEE and astaxanthin), the longer the period of feeding, the higher the accumulation in skin was observed. Only astaxanthin was effective against the production of lipid peroxides in skin. Conclusively, out of the commercially available carotenoids we tested, astaxanthin is recommended for pigmentation of skin and inhibition of lipid oxidation.

• 한국미생물·생명공학회지
• /
• 제7권4호
• /
• pp.197-204
• /
• 1979

계육을 이용한 가공식품개발의 필요성에 의하여 원료육의 전처리 과정중 부패에 가장 큰 영향을 미치는 미생물의 증식을 억제하고자 NaOCl과 succinic acid를 병행사용하여 미생물의 증식억제 효과 및 저장기간의 연장등을 조사한 결과는 다음과 같다. 1. NaOCl의 농도증가에 따라 미생물의 증식억제효과도도 증가하였다. 200ppm 처리시 50ppm의 경우보다 1/1000로 생존균체가 더 감소하였다. 2. 탕지 처리시 6$0^{\circ}C$에서 염소의 소실도 적었으며 규체억제 및 계육표피의 보전성에서도 양호한 결과를 얻었다. 3. NaOCl에 유기산 검가시 pH 3 부근에서 급격한 균체 억제작용을 보였다. Acetic acid, succinic acid, lactic acid, citric acid 등 유기산 첨가시 succinic 효과가 pH 3.12, 0.51%의 농도에서 균체억제 효과가 가장 좋았다. 4. 200ppm NaOCl ＋0.5% succinic acid로 30분간 침지한 계육을 5$^{\circ}C$와 -18$^{\circ}C$에 명명 저장시저장기간의 연장은 무처리군보다 5$^{\circ}C$의 경우 2일간 더 연장되었다.

• Journal of Animal Science and Technology
• /
• 제62권6호
• /
• pp.790-800
• /
• 2020

The Yeonsan Ogye (YO) chicken is a natural heritage of Korea, characterized by black feathers, skin, bones, eyes, and comb. The purebred of YO population has been reared under the natural mating system with no systematic selection and breeding plan. The purpose of this study was to identify the genetic diversity and find the optimal number of population sub-division using 12 polymorphic microsatellite (MS) markers to construct a pedigree-based breeding plan for the YO population. A total of 509 YO birds were used for this study. Genetic diversity and population structure analysis were conducted based on the MS marker genotype information. The overall average polymorphic information content value and expected heterozygosity of the population were 0.586, and 0.642, respectively. The K-mean cluster analysis based on the genetic distance result confirmed that the current YO population can be divided into three ancestry groups. Individuals in each group were evaluated based on their genetic distance to identify the potential candidates for a future breeding plan. This study concludes that a future breeding plan with known pedigree information of selected founder animals, which holds high genetic diversity, could be the best strategy to ensure the conservation of the Korean YO chicken population.

• 대한한의학회지
• /
• 제32권4호
• /
• pp.159-166
• /
• 2011

Objectives: This study reports using Hyungbangsabaksan to cure Soyangin Yangdokbalban (陽毒發斑) appealing Systemic Allergic Contact Dermatitis. Methods: After diagnosing the patient showing Papuloerythematous with no blisters in the body as a Soyangin Yangdokbalban (陽毒發斑), we prescribed the patient with Hyungbangsabak-san. We compared the condition of the patient before and after medication with photo shots. Results: After treatment, Papuloerythematous which was seen with the naked eye disappeared and various skin symptoms such as itching and warmth in the flare area also improved. Conclusions: After treatment, the symptoms of the patient who after eating lacquer chicken showed improvement.

• 한국축산식품학회지
• /
• 제24권2호
• /
• pp.115-120
• /
• 2004

도계과정에서 탕침 온도를 저온(53-55$^{\circ}C$), 중온(59-61$^{\circ}C$), 고온(65-67$^{\circ}C$)으로 변화시켰을 때 닭고기의 육질에 미치는 영향과 저장 특성을 구명하고자 실시하였다. 탕침 온도가 높을수록 피부의 황색도(b$^{*}$ )는 감소하는 경향을 나타냈으며, 물리적 변화에서 보수력은 저온(67.043%)에서 고온(69.26%)으로 온도가 높아질수록 증가하는 경향을 나타냈다. 전단력은 저온(1.70kg/0.5inch$^2$)보다 고온 (2.54kg/0.5 inch$^2$)으로 높아질수록 유의적으로(p＜0.05) 증가하였다. 저장 3일에 저온 탕침 처리 닭고기의 지방산패도(TBARS) 값은 저온 0.25, 중온 0.24, 고온 0.27mg MA/kg으로 중, 저온에서는 비슷한 경향을 나타났으나 고온에서는 약간 증가한 것으로 나타났다. 총세균수는 저온에서 4.99, 중온 4.88, 고온 4.05 log CFU/mL를 나타나 탕침 온도가 높아질수록 감소하는 경향을 나타내었으나 유의적인 차이는 없었다(p＜0.05). 도체 조사에서 깃털의 출현율은 탕침 온도가 높아지면서 큰 것(1cm 이상)은 중온(59-61$^{\circ}C$)부터 현저히 감소하는 경향을 나타냈으나 중온과 고온에서는 차이가 거의 없었다. 외상은 탕침 온도가 61$^{\circ}C$ 이하인 저온, 중온에서는 0.6cm를 나타냈으나 고온처리에서는 7 cm로 급격히 증가하여서 고온처리에 따른 피부의 손상이 심한 것으로 나타났다. 이상의 결과는 탕침 온도가 너무 낮을 경우는 육색 및 물리적 특성은 양호하나 미생물이 증가하고, 깃털이 잘 뽑히지 않는 단점이 있으며, 고온일 경우는 황색도(b$^{*}$ )가 낮아지는 경향을 나타내며, 도체에서 깃털은 잘 뽑혔으나 표피 손상으로 근육의 노출이 많았다.

• 사상체질의학회지
• /
• 제34권4호
• /
• pp.68-80
• /
• 2022

Objectives This study is to report a significant improvement in a Taeeumin patient with systemic contact dermatitis after eating urushiol chicken by herbal medicine treatment. Methods The patient had complaints of erythema, swelling, pruritus, scaly skin, and facial flushing. We treated the patient with an herbal medicine 'Galgeunhaegi-tang' for three months. We evaluated the treatment outcome of systemic contact dermatitis using the Three Item Severity(TIS) score every visit and facial flushing by Image color summarizer at the first and last visit. Results After the treatment, the severity of the patient's skin complaints lessened from moderate to mild. The Image color summarizer showed a minor decrease in the normalized red color level and a significant increase in the brightness level and facial color percentage. Conclusions The patient diagnosed with systemic contact dermatitis, treated with Galgeunhaegi-tang for three months, showed a significant improvement in skin complaints with brighter and even facial color.

• 한국응용과학기술학회지
• /
• 제27권1호
• /
• pp.76-86
• /
• 2010

This study was conducted to evaluate the effects of dietary Korean red pine bark extract as an antibiotic replacements on cholesterol, fatty acids and the shelf-life of chicken meat. To accomplish this, chickens were fed the optimal level of red pine bark extract that was found to replace antibiotics in the diet of broilers. A total of 180 male broilers(Ross strain 308) were divided into three treated groups, T1(control group), T2(8 ppm of avilamycin) and T3(65 ppm of red pine bark extract per kg diet). The lipid content was reduced by 24.67% and 20.49% in T3 group, while the cholesterol level also decreased significantly in the T3 group by 20.49% and 20.55% when compared to the T1 and T2 groups, respectively. In addition, the saturated fatty acid level was lower in the T3 group than in the T1 and T2 groups, while the unsaturated fatty acid level of the T3 group was significantly higher than those of the other groups. The TBARS value of chicken thigh muscle containing its skin on the 7th day of low temperature storage was significantly lower by 23.86% and 21.17% in the T3 group than in the T1 and T2 groups, respectively. Evaluation of the color of the meat revealed that the $L^*$value (lightness) and $b^*$value(yellowness) were higher in the T3 group than in the T1 and the T2 groups, but that the pH was significantly lower in the T3. Based on the results of this study, the addition of 65 ppm red pine bark extract to the diet of broilers should improve their meat quality with respect to the lipid contents and shelf-life when compared to the addition of antibiotics.

• 한국응용과학기술학회지
• /
• 제28권3호
• /
• pp.273-283
• /
• 2011

The objective of this study was to determine the feeding effect of a diet containing Cordyceps with fly pupa on the changes in blood lipid profile from broiler chickens, fatty acids and thiobarbituric acid reactive substances (TBARS) in chicken meat. A total of 360 chicks (Ross strain 308) were divided on hatch day into four treated groups with respect to a 35-day feeding regimen: T1 (control group), T2 (2.0% Cordyceps with fly pupa), T3 (3.5% Corceps with fly pupa) and T3 (5.0% Cordyceps with fly pupa). Blood triacylglyceride and total cholesterol level was significantly decreased by 5.32-10.63% and 9.23-12.62%, respectively, in groups T2, T3 and T4 when compared to T1 (p<0.05). Water holding capacity was significantly highest in T2 (p<0.05), while there were no significant differences among groups T2, T3 and T. In chicken meat, the ratio of saturated fatty acid to unsaturated fatty acid was high in the T3 and T4 groups, the ratio of n-6 to n-3 fatty acid was low in the T2, T3 and T4 groups and oleic acid (18:1n-9) was high in the T2, T3 and T4 groups, when compared to T1 (p<0.05). TBARS tended to increase according to the storage time (in days), and was significantly lower in the chicken thigh muscles with skin in groups T2, T3 and T4 as compared to T1 (p<0.05). These results suggest that a diet containing 2.0-3.5% of Cordyceps with fly pupa may decrease blood lipid and improve both the shelf-life and quality of broiler chicken meat.