• 한국수산과학회지
• /
• 제15권2호
• /
• pp.123-136
• /
• 1982

방어의 배육 보통육과 측육 혈합육을 $2^{\circ}C$에 보장하여 두고 선도변화 총계별로 단백질의 조성과 각축의 구성 및 유리아미노산의 조성을 분석하였으며, 건향질단백질과 근원섬유단백질에 대하여는 구성단백질의 분포변화를 확인하기 위하여 $NaDodSO_4$변한 다음, polyacrylamide겔 전기영동상을 비교 해석함으로써 적색육어류의 선도변화와 보통육 및 혈합육의 단백질조성 변화와의 관련성을 검토하였다. K-값과 휘발성염기질소 및 pH값으로 판정했을 때, 혈합육은 보통육에 비하여 선도변화가 빨랐다. 사후 선도변화와 더불어 근원질단백질과 노원섬유단백질은 감소하는 반면, 세포내잔사단백질은 상대적으로 증가하였으며, 이러한 변화는 보통육에 비하여 혈합육이 훨씬 심한 편이었다. Sodium dodecyl sulfate 화한 단백질을 polyacrylamide겔 전기영동함으로 분석한 결과, 보통육의 근원질단백질은 16개 성분, 그리고 혈합육의 근원질단백질은 12개 성분으로 구성되어 있었으며, 보장 10일째부터 보통육의 근원질단백질은에는 41,000dalton과 18,000dalton의 양분이 조금씩 증가하였고, 26,000 dalton과 23,500 dalton 및 23,000 dalton되 각 성분은 점차 감소하였다. 혈합육의 근원질단백질에 있어서는 49,000 dalton의 성분은 감소하였고 47.000 dalton의 성분은 새로이 형성되었으며, 26,000 dalton의 성분은 소감하였다. 근원섬유단백질의 전기영동분석결과에 의하면, 보통육의 근원섬유단백질은 17개 성분, 그리고 혈합육의 근원조직단백질은 16개의 성분으로 구성되어 있었다. 보장 10일에부터 보통육의 근원섬유단백질중에는 40,000 dalton의 성분이 증가하였고, 37,500 dalton의 성분은 점차 감소하였으며, 32,000 dalton의 성분은 새로히 출현하였다. 혈합육의 근원섬유단백질은 보장 9일째부터 58,000 dalton과 64,000 dalton의 성분은 그 농도가 단가하였으며, 17,500의 light chain-2 단백질은 소감하였고, 32,000 dalton의 성분은 새로이 출현하였다. 이 같은 전기영동상의 변화는 근원질단백질이 근원섬유단백질에 비하여 빨랐으며, 근원섬유단백질의 경화에 있어서는 혈합육쪽이 보통육에 비하여 빨랐다. 양 육의 단백질을 구성하는 아미노산을 분석한 결과, 즉살한 방어의 보통육 단백질은 글루탐산, 아스팔트산, 류신. 알기닌, 알라닌 등은 그 양이 어느 정도 많았고, 프롤린과 트?토판은 그 양이 적었으며, 혈합육에 있어서도 비슷한 경형이었다. 그리고 10일이 경과한 보통육에 있어서는 글루탐산과 아스팔트산이 현저히 감소하였으며, 9일이 경과한 혈합육에 있어서는 알라닌, 글리신, 그리고 알기닌이 현저히 감소하였다. 유리아미노산의 조성을 분석 결과, 즉살한 방어의 보통육중에는 히스티딘이 총유리아미노산의 약 $63\%$를, 그리고 혈합육중에는 타우린이 총유리아미노산의 약 $67\%$를 차지하는 양을 보였다. 그리고 $2^{\circ}C$에서 10일이 경과했을 때, 보통육에서는 히스티딘, 발린, 타우린이 증가하였으며, 알라닌, 류신 및 글리신 등은 조금 감소하였다. 같은 온도에서 9일이 경과한 혈합육에서는 타우린, 페닐알라닌, 글리신은 증하였으며, 히스티딘, 알라닌, 세린 등은 감소하였다.

• 대한수의학회지
• /
• 제36권3호
• /
• pp.577-598
• /
• 1996

This study was conducted to identify the effects of caffeine or combinations of caffeine and iron or vitamin E on the lipid and protein components or blood chemistry levels of the serum as well as the total homogenate, mitochondrial and microsomal fraction of the rat(Sprague-Dawley, female) liver. Chronic test were conducted to determine those effects. The chronic test was conducted by dividing rats into 5 groups according to the type of drugs and dosages administrated as follows; the control(group A), and group B was given 25mg/kg caffeine orally once daily for 30 days, group C was given 50mg/kg caffeine orally once daily for 30 days, group D was given 25mg/kg caffeine and orally ferric chloride once daily for 30 days and group E was given 25mg/kg caffeine and 25mg/kg vitamin E once daily for 30 days. The concentrations of glucose, urea nitrogen, uric acid, creatinine, total protein, albumin, A/G ratio, triglyceride, total cholesterol, HDL-cholesterol, free fatty acid, phospholipid as well as the activities of alanine aminotransferase(ALT), aspartate aminotransferase(AST) and alkaline phosphatase(ALP) were measured in the serum of each experimental groups. The concentrations of the carbonyl group and malondiaidehyde(MDA) and the patterns of the SDS-PAGE(Sodium Dodecyl Sulfate - Polyacrylamide Gel Electrophoresis) and fatty acid compositions in free fatty acids and phospholipids were analyzed to determine the oxidative damages and metabolic changes on the lipid and protein components in the serum, and total homogenate, mitochondrial and microsomal fractions of the rat liver. The results obtained from this study were summarized as follows; 1. Body weights of groups B, C, D and E were significantly decreased(p < 0.01) in comparison with that of the control in the chronic test. 2. The concentrations of serum glucose in groups B(124.5mg/dl), C(130.1mg/dl), D(122.1mg/dl), E(119.3mg/dl) were significantly higher(p < 0.01) in comparison to that of the control(101.5mg/dl). But, there were no significant differences in the concentrations of urea nitrogen, uric acid, creatinine, total protein, albumin and A/G ratio in comparison to that of the control. 3. The concentrations of total cholesterol and HDL-cholesterol in serum of groups B(69.6, 53.4mg/dl), C(73.0, 56.3mg/dl), D(68.9, 51.1mg/dl) and E(68.2, 51.3mg/dl) were significantly higher(p < 0.01) in comparison to that of the control(52.6, 38.8mg/dl). On the other hand, the concentrations of triglyceride in serum of groups B(45.0mg/dl), C(40.4mg/dl), D(33.8mg/dl) and E(47.2mg/dl) were significantly lower(p < 0.01) in comparison to that of the control(66.2mg/dl). There were no significant differences in the activities of ALT, AST and ALP in comparison to that of the control. 4. The concentrations of free fatty acid and phospholipid in serum of groups B(45.7, 154.4mg/dl), C(50.0, 167.2mg/dl), D(52.5, 148.4mg/dl) and E(41.1, 159.2mg/dl) were higher(p < 0.01) in comparison to that of the control(35.2, 125.3mg/dl). And the concentrations of the carbonyl group and malondialdehyde in serum of group D(1.82, 0.52nM/mg protein) were significantly higher(p < 0.01) in comparison to the control(1.53nM/mg protein). 5. The concentrations of carbonyl group in total homogenate, mitochondrial and microsomal fraction of group D(1.45, 0.94, 1.67nM/mg protein) were significantly higher (p < 0.01) in comparison to the control(1.16, 0.66, 1.27nM/mg protein). And the concentrations of malondialdehyde in the total homogenate, mitochondrial and microsomal fraction of group D(6.70, 6.10, 1.36nM/mg protein) were significantly higher(p < 0.01) in comparison to the control(5.17, 3.64, 0.68nM/mg protein). 6. As the analytical results of the fatty acid compositions of free fatty acid in serum, the proportions of stearic acid and arachidonic acid of groups B(16.52, 12.62%), C(17.52, 15.18%), D(19.73, 13.47%) and E(17.62, 13.28%) were significantly higher(p < 0.01) in comparison to the control(14.75, 7.88%), but the proportions of oleic acid and linoleic acid of groups B(12.97, 32.59%), C(10.88, 31.23%), D(12.37, 30.66%) and E(11.95, 32.41%) were significantly lower(p < 0.01) in comparison to the control(16.44, 35.12%). Otherwise, as the results of the fatty acid compositions of phospholipid in serum, the proportions of stearic acid and arachidonic acid of groups B(39.37, 16.39%), C(40.63, 17.83%), D(42.73, 15.39%) and E(39.16, 15.70%) were significantly higher(p < 0.01) in comparison to the control(37.74, 14.24%), but the proportions of oleic acid and linoleic acid of groups B(4.03, 14.38%), C(3.54, 12.38%), D(4.52, 11.68%) and E(4.29, 13.64%) were significantly lower(p < 0.01) in comparison to the control(5.53, 16.14%). 7. As the analytical results of the fatty acid compositions of free fatty acid in total homogenate, mitochondrial and microsomal fraction of liver, the proportions of oleic acid of groups B(7.8**, 8.73**, 6.88%) and C(6.89**, 7.75**, 6.58%) were lower(**:p < 0.01) in comparison to the control(8.67, 10.08, 7.81%), but the proportions of arachidonic acid of group C(22.62, 19.79, 23.71%) were significantly higher(p < 0.01) in comparison to the control(20.93, 18.47, 22.24%). And the proportions of palmitic acid of group D(25.95**, 26.16, 26.34**%) were significantly higher(**:p < 0.01) in comparison to the control(24.43, 25.42, 23.34%). In addition, the proportions of linoleic acid of group D(23.43, 25.02, 23.95%) were also significantly higher(p < 0.01) in comparison to the control(22.17, 23.75, 21.26%). The proportions of stearic acid of group D(19.87, 19.76**%) in mitochondrial and microsomal fraction were lower(**:p < 0.01) in comparison to the control(21.01, 24.18%), and the proportions of stearic acid of group E(16.71*, 19.65**%) in mitochondrial and microsomal fraction were significantly lower(**:p < 0.01, *:p < 0.05) in comparison to the control(21.01, 24.18%), and the proportions of linoleic acid of group E(25.04, 29.20, 26.48%) in total homogenate, mitochondria and microsome were significantly higher(p < 0.01) in comparison to the control(22.17, 23.75, 21.26%). 8. As the results of the fatty acid compositions of phospholipid in total homogenate, mitochondrial and microsomal fraction of liver, the proportions of palmitic acid of group D(17.58**, 18.78*, 18.23%**) were significantly higher(**:p < 0.01, *:p < 0.05) in comparison to the control(16.28, 17.22, 16.38%), and the proportions of stearic acid of group D(36.41, 37.23, 39.53%) were also significantly higher(p < 0.01) in comparison to the control(34.18, 34.16, 36.04%). But the proportions of oleic acid(3.41*, 3.11**, 3.12**%) and linoleic acid (18.03**, 15.79**, 14.74**%) of group D were significantly lower(**:p < 0.01, *:p < 0.05) in comparison to the control(oleic : 3.63, 3.72, 3.79%, linoleic : 20.03, 18.71, 18.48%). 9. In order to determine the oxidative damages to the protein in serum, mitochondrial and microsomal fraction of the rat liver, the patterns of the SDS-PAGE were identified, but the results of SDS-PAGE were not significantly different between the control and experimental groups.