• 한국축산식품학회지
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• 제42권1호
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• pp.18-33
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• 2022

Beef contains functional fatty acids such as conjugated linoleic acid and longchain fatty acids. This review summarizes results from studies comparing the fatty acid composition of beef from cattle fed either grass or grain-based feed. Since functional lipid components are contributed through dietary consumption of beef, the fatty acid composition is reported on mg/100 g of meat basis rather than on a percentage of total fat basis. Beef from grass-fed contains lesser total fat than that from grain-fed in all breeds of cattle. Reduced total fat content also influences the fatty acid composition of beef. A 100 g beef meat from grass-fed cattle contained 2,773 mg less total saturated fatty acids (SFA) than that from the same amount of grain-fed. Grass-fed also showed a more favorable SFA lipid profile containing less cholesterol-raising fatty acids (C12:0 to C16:0) but contained a lesser amount of cholesterol-lowering C18:0 than grain-fed beef. In terms of essential fatty acids, grass-fed beef showed greater levels of trans-vaccenic acid and long-chain n-3 polyunsaturated fatty acids (PUFA; EPA, DPA, DHA) than grain-fed beef. Grass-fed beef also contains an increased level of total n-3 PUFA which reduced the n-6 to n-3 ratio thus can offer more health benefits than grain-fed. The findings signify that grass-fed beef could exert protective effects against a number of diseases ranging from cancer to cardiovascular disease (CVD) as evidenced by the increased functional omega-3 PUFA and decreased undesirable SFA. Although grain-fed beef showed lesser EPA, DPA, and DHA, consumers should be aware that greater portions of grain-fed beef could also achieve a similar dietary intake of long-chain omega-3 fatty acids. Noteworthy, grain-fed beef contained higher total monounsaturated fatty acid that have beneficial roles in the amelioration of CVD risks than grass-fed beef. In Hanwoo beef, grain-fed showed higher EPA and DHA than grass-fed beef.

• Nutrition Research and Practice
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• 제9권2호
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• pp.150-157
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• 2015

BACKGROUND/OBJECTIVES: The purpose of this study was to investigate the overall effects of a tailored Dietary Approaches to Stop Hypertension (DASH) nutritional intervention program which included omega-3 fatty acids supplementation, on dietary self-efficacy, dietary knowledge, and dietary behaviors in Korean elderly women with abdominal obesity. Furthermore, we investigated the effects of the program on metabolic syndrome parameters including the antioxidant capacities in these subjects. SUBJECTS/METHODS: A randomized, controlled trial was conducted for 8 weeks. The experimental group (n = 21) received a weekly tailored nutritional program for 8 weeks and the control group (n = 18) received only one educational session. The clinical survey was conducted before and after the intervention period. RESULTS: After the intervention, dietary self-efficacy (P = 0.023), frequency of fruit intake (P = 0.019), and dietary fiber intake (P = 0.044) were higher in the experimental group than in the control group. The oxidative stress (P < 0.001) was lower in the experimental group than in the control group. Moreover, low density lipoprotein (LDL) cholesterol (P = 0.023) had significantly decreased in the experimental group but not in the control group after the intervention. CONCLUSIONS: The intervention program including omega-3 fatty acid supplementation had a positive effect on dietary self-efficacy, dietary behaviors, and oxidative stress among aged women with abdominal obesity.

• Applied Biological Chemistry
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• 제41권7호
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• pp.533-538
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• 1998

동면시 짱뚱어의 에너지 대사에 관한 정보를 얻고자 근육 중 지방질과 지방산조성을 성숙기(8월), 동면직전(11월), 동면직후(4월)로 나누어 분석 검토하였다. 조지방과 중성지질 조성은 각각 8월 1.2, 68.3%에서 11월 0.7, 53.8%, 4월 0.4, 42.6%로 점차 줄었고, 인지질과 당지질은 8월 29.5, 2.2%에서 4월 52.1%, 5.3%로 각각 증가 하였다. 중성지질 중 TG함량은 8월 53.8%에서 11월 33.6, 4월 23.1%로 점차 줄었으나, FFA와 sterol류는 반대로 8월 13.5, 14.2%에서 4월 22.3, 24.5%로 각각 증가하였다. 인지질에서는 PC함량이 8월 61.2%였으나 4월 50.6%로 줄었고 PS와 PE는 이와 대체로 반대 경향이었다. 중성지질에서는 16 : 0, 16 : 1, 18 : 0, 18 : 1, 20 : 5$({\omega}3)$이 많았고 특히 $20:5({\omega}3)$가 많은 점이 특징적이었으며 월동전 후는 포화산과 monoene산 조성이 줄고 대신 polyene산 조성이 높아지는 경향이었다. 11월은 주로 16 : 0, 16 : 1, 18:1 등 일부가 줄었으나 4월은 16 : 0, 20 : 1, 22 : 1를 제외한 14 : 0, 14 : 1, 16 : 1, 18 : 0, 18:1 등 대부분의 포화 및 monoene산과 18 : 2, 18 : 3$({\omega}3)$이 균일하게 줄어 동면시 이들이 에너지원이 되고 특히 전기간에 걸쳐서는 16 : 1과 18 : 1의 이용이 용이했을 것으로 판단되었다. 인지질에서는 16 : 0, 18 : 0, 20 : 5$({\omega}3)$, 22 : 5$({\omega}3)$, 22 : 6$({\omega}3)$이 많았고 monoene산 조성비는 거의 일정하였으나 월동전 후는 16 : 0, 18 : 0을 주로 한 포화산과 18 : 2, 18 : 3$({\omega}3)$이 줄었고 대신 20 : 4$({\omega}6)$, 20 : 5$({\omega}3)$, 22.5$({\omega}3)$, 22 : 6$({\omega}3)$ 등고도 polyene산 조성이 높아져 불포화도가 증가하였으며, 특히 20 : 4$({\omega}6)$와 20 : 5$({\omega}3)$의 상승폭이 컸다.

• 한국응용과학기술학회지
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• 제7권2호
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• pp.19-32
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• 1990

Lipid levels in the tissues of liver and intestines of O.bartrami amounted to 40.0% and 1.5%. The new compounds was found to be ethyl acylates, from a deduction of their detailed $^1H-nuclear$ magnetic resonance(NMR) and $^{13}C-NMR$ as well as infra red spectra (IR). The fatty acid composition of total lipids were mainly composed of C16:0(19.0%), C18:1(16.2%) and $C22:6{\omega}3$(15.7%), followed by C20:1(9.4%), C22:1(6.4%) and C18:0(5.4%). New compound A and B were seemed to derived from the cleavage of glycerol moieties of triglycerides by microbial activities during storage in a frozen state. Compound A contained C16:0(38.2%), C18:1(13:4%), C20:1(13.3%) and C22:1(11.7%) as major components, while compound B predominantly comprised polyunsaturated fatty acid such as $C20:5{\omega}3$ (41.2%) and $C22:6{\omega}3$(36.1%). In both compounds small amounts of odd numbered fatty acids were also detected ($3.8{\sim}2.2%$).

• 대한임상검사과학회지
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• 제50권2호
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• pp.183-189
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• 2018

에이코사펜타엔산(EPA) 및 도코사헥사엔산(DHA)을 비롯한 오메가-3 불포화 지방산은 어류 및 어유에 많이 존재한다. 최근 연구에 따르면 오메가-3 지방산이 암, 심장 혈관 질환, 면역 체계, 간경변 및 신경계 장애에 효과가 있는 것으로 나타났다. 특히, 오메가-3는 고지혈증 개선과 간기능검사에 도움을 주는 것으로 보고되고 있다. 하지만 우리나라의 경우 사례가 많지 않다. 본 연구에서는 오메가-3를 2주간 1 gm/day을 섭취하여 혈중 고지혈증과 간기능 개선에 효과가 있는지 알아보고자 하였다. 본 실험 결과, 간기능검사에서는 AST가 감소하였고, 알콜성간염이나 지방간과 관계있는 GGT에서 유의한 결과를 보였다. 오메가-3가 간기능 개선에 도움을 주는 것으로 나타났다. 심혈관질환과 관계있는 중성지방, 총콜레스테롤, 저밀도 콜레스테롤은 오메가-3 섭취후 감소를 보였고, 특히 고밀도 콜레스테롤이 유의하게 증가하였다. 고지혈 질환에서도 개선효과가 있는 것으로 나타났다. 남자군과 여자군별 오메가-3 섭취 전과 후를 비교한 결과, 남자군에서는 AST에서 유의한 결과를 보였고, 여자군에서는 GGT와 고밀도 콜레스테롤에서 유의한 결과를 보였다. 결과적으로 오메가-3 섭취가 간기능검사나 고지혈 질환의 예방 및 개선에 도움이 되는 것으로 나타났다.

• 한국응용과학기술학회지
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• 제15권4호
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• pp.1-9
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• 1998

The lipids from the seeds of Pinus koraiensis mostly composed of triacylglycerols (TGs), in which linoleic acid (46.2 mol%) and oleic acid (25.6 mol%) are present as main components in the fatty acid composition. Surprisingly, they also have unusual fatty acids with ${\Delta}^5$-double bond systems such as ${\Delta}^{5.9.12}-C_{18:3}$ (16.0 mol%), ${\Delta}^{5.9}-C_{18:2}$ (2.3 mol%) and ${\Delta}^{5.11.14}-C_{20:3}$ (0.8 mol%). Saturated fatty acids of palmitic, stearic and arachidic acid were present in less than 8.0 mol%. TG was resolved into 17 fractions by reverse-phase HPLC according to so-called partition number (PN) suggested by Plattner, in which TG molecules with ${\Delta}^{5}$-NMDB acyl chains eluted later than did those with ${\Delta}^{9}$-MDB acyl radicals. $Ag^+$-HPLC separated the TG into 14 fractions more clearly than did those with ${\Delta}^{9}$-MDB acyl radicals. $Ag^+$-HPLC separated the TG into 14 fractions more clearly than did reverse-phase HPLC, and the complexity of ${\Delta}^{5.9.12}-C_{18:3}$ moiety with silver ion impregnated in the column bed was in the level between ${\Delta}^{9.12.15}-C_{18:3}$ ($C_{18:3{\omega}3}$) and $C_{18:2{\omega}6}$ (${\Delta}^{9.12}-C_{18:2}$). In the $Ag^+$-HPLC, it was found that the molecular species having a given-numbered double bonds widely spreaded in the acyl chains eluted earlier than those concentrated in one acyl chain. The main molecular species are $(C_{18:2{\omega}6})_2/{\Delta}^{5.9.12}-C_{18:3}$ (14.8 mol%), $C_{18:1{\omega}9}/C_{18:2{\omega}6})_2$ (12.8 mol%) and $C_{18:1{\omega}9}/C_{18:2{\omega}6}/{\Delta}^{5.9.12}-C_{18:3}$ (10.9 mol%).

• Asian-Australasian Journal of Animal Sciences
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• 제27권7호
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• pp.1026-1034
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• 2014

This study was conducted to assess the effects of flaxseed oil and dried whitebait as a source of ${\omega}$-3 fatty acids (${\omega}$-3 FA), which could be used to produce eggs enriched with ${\omega}$-3 FA, and of fructo-oligosaccharide (FOS) as a source of prebiotics on performance of hens (commercial Hy-Line Brown laying hens), and FA composition, internal quality, and sensory characteristics of the eggs. Dietary FOS increased egg weight. The amounts of ${\alpha}$-linolenic (ALA), eicosapentaenoic (EPA) and docosahexaenoic acids (DHA) in the eggs from the hens fed the flaxseed oil alone or flaxseed oil+dried whitebait diets were higher than those of the control. Hedonic scores for off-flavor, fishy flavor, buttery taste and overall acceptability of the eggs from the hens fed the diet containing flaxseed oil+dried whitebait were lower (p<0.05) than those of the control. Overall acceptability of the eggs from the hens fed the diet containing soybean oil+dried whitebait was lower (p<0.05) than that of the control. However, all the sensory attributes of the eggs from the hens fed the diet containing flaxseed oil, dried whitebait and FOS were not significantly different from those of the control. These results confirmed that flaxseed oil increases the ALA content in the eggs and a combination of flaxseed oil and dried whitebait increases EPA and DHA in the eggs. Of significance was that addition of FOS to the flaxseed oil+dried whitebait diet improves the sensory characteristics of the eggs enriched with ${\omega}$-3 FA.

• Nutrition Research and Practice
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• 제9권4호
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• pp.400-403
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• 2015

BACKGROUND/OBJECTIVES: By the year 2050, thirty-eight percent of the Korean population will be over the age of 65. Health care costs for Koreans over age 65 reached 15.4 trillion Korean won in 2011, accounting for a third of the total health care costs for the population. Chronic degenerative diseases, including coronary heart disease (CHD), drive long-term health care costs at an alarming annual rate. In the elderly population, loss of independence is one of the main reasons for this increase in health care costs. Korean heath policies place a high priority on the prevention of CHD because it is a major cause of morbidity and mortality. SUBJECTS/METHODS: This evidence-based study aims to the estimate potential health care cost savings resulting from the daily intake of omega-3 fatty acid supplementation. Potential cost savings associated with a reduced risk of CHD and the medical costs potentially avoided through risk reduction, including hospitalizations and physician services, were estimated using a Congressional Budget Office cost accounting methodology. RESULTS: The estimate of the seven-year (2005-2011) net savings in medical costs resulting from a reduction in the incidence of CHD among the elderly population through the daily use of omega-3 fatty acids was approximately 210 billion Korean won. Approximately 92,997 hospitalizations due to CHD could be avoided over the seven years. CONCLUSIONS: Our findings suggest that omega-3 supplementation in older individuals may yield substantial cost-savings by reducing the risk of CHD. It should be noted that additional health and cost benefits need to be revisited and re-evaluated as more is known about possible data sources or as new data become available.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제19권4호
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• pp.286-290
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• 2016

Inspissated bile syndrome (IBS) is a rare condition in which thick intraluminal bile, including bile plugs, sludge, or stones, blocks the extrahepatic bile ducts in an infant. A 5-week-old female infant was admitted for evaluation of jaundice and acholic stool. Diagnostic tests, including ultrasound sonography, magnetic resonance cholangiopancreatography, and a hepatobiliary scan, were not conclusive. Although the diagnosis was unclear, the clinical and laboratory findings improved gradually on administration of urodeoxycholic acid and lipid emulsion containing omega-3 polyunsaturated fatty acids (PUFAs) for 3 weeks. However, a liver biopsy was suggestive of biliary atresia. This finding forced us to perform intraoperative cholangiography, which revealed a patent common bile duct with impacted thick bile. We performed normal saline irrigation and the symptom was improved, the final diagnosis was IBS. Thus, we herein report that IBS can be treated with omega-3 PUFAs as an alternative to surgical intervention.

• 한국식생활문화학회지
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• 제15권3호
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• pp.163-174
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• 2000

This research was designed to develop a computer program and evaluate the nutritional balances especially the balance of fatty acids, amino acids and antioxidant vitamins for convenience foods. The Korean convenience food, Kimbab purchased from markets was evaluated by using the self-developed computer program. Contents of calories, protein and calcium were lower$(1/3^{\circ}{\neq}1/2)$ than the recommended levels of Korean adult woman, and the carbohydrate/ protein/ fat(CPF) energy ratio was 70: 13: 17. The mean P/ M/ S ratio was 2.2/ 1.4/ 1 and that of ${\omega}6/\;{\omega}3$ fatty acids was 17.9/ 1, which was higher than the desirable ratio of $4{\sim}8/\;1$. Average essential amino acid balance of market-Kimbab samples was within the desirable range even though the absolute amount of protein was lower than the recommended level. Contents of antioxidant vitamins (A, C &E) were lower than recommended levels. Two kinds of nutritionally adjusted Kimbab menu were established by self-developed computer program. Some of major changes was adding food ingredients such as tuna fish and perilla leaf cooked with sesame oil and soybean oil to increase ${\omega}3$ series fatty acids. Some fruits and milk were also added to the menu. The adjusted CPF ratios was 63: 15: 22 and the new values for P/ M/ S and ${\omega}6/\;{\omega}3$ fatty acids ratios were 1.0/ 1.2/ 1/0 and 6.1/ 1 respectively. In sensory evaluation of two kinds of adjusted Kimbab, the taste and overall estimation scores were higher than unadjusted Kimbab. The computer program developed in this study might be used as a tool for the evaluation of nutritional balance of other convenience foods and menu planning.