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인유 , 조제 분유 및 시유의 총지방질 조성 , 총지방산 조성 및 비타민 E 함량의 비교
윤태헌,임경자,장유경 ( Tai Heon Yoon,Kyung Ja Im,You Kyung Jang ) 한국유화학회 1984 한국응용과학기술학회지 Vol.1 No.1
The lipid and fatty acid compositions and vitamin E content were analyzed in 48 human mature milk, 3 infant formulas (modified milk powder) and 8 market milk samples. The total lipid content in modified milk powder was similar those in human milk and market milk when total solids content of modified milk powder was corrected to that of human milk. In comparison with human milk, modified milk powder contained a lower proportion of triglycerides and higher proportions of phospholipids, free fatty acids and cholesterol esters. The ratios of phospholipids/ triglycerides, total cholesterol/ triglycerides and total tocopherol/ total lipids in modified milk powder were significantly higher than those in human milk and market milk. The American recommendation fro linoleic acid (0.7 IU/g) could be satisfied with human milk, modified milk powder and market milk. The proportions of short-and medium-chain even numbered saturates were higher and the proportions of long-chain derivatives of linoleic (ω6 series) and linolenic (ω3 series)acids were lower in modified milk powder and market milk than in human milk. It is concluded that in view of their levels in breast milk, the polyenoic derivatives of linoleic and linolenic acids must be taken into account when assessing infant foods.
인유 , 조제 분유 및 시유의 인 지방질의 지방산 조성의 비교
윤태헌,임경자 ( Tai Heon Yoon,Kyung Ja Im ) 한국유화학회 1985 한국응용과학기술학회지 Vol.2 No.1
Effects of garlic on hypocholesterolemia, anticoagulation and hypoglycemia were studied in the present experiments using male rats. The results were summarized as follows. 1. The supplementation of 2~4% garlic to 2% cholesterol diets did not affect food intake and weight gain in male rats. 2. Rat`s groups fed the diets supplemented with 2~3% garlic (C,D,E,F) to 2% cholesterol diet (B) decreased serum total cholesterol levels by 16~32%, triglyceride levels by 18.6~26.8% and β/α-lipoportein rations by 42~58%, but increased HDL-cholesterol levels by 29~65% as compared to B group, and so the author assumes that garlic supplementation exerts hypocholesterolemic effect on cholesterol-fed rats because of the increase of HDL and HDL-cholesterol levels. 3. Rat`s groups fed the diets supplemented with 2~4% garlic (C,D,E,F) to 2% cholesterol plus 0.25% bile salt diet (B) increased whole blood coagulation times, prothrombin times and fibrinolytic activities, but decreased plasma fibrinogen levels as compared to B group, and so the author assumes that garlic supplementation exerts anticoagulative effect because of the inhibition of fibrinogen synthesis in male rat`s liver. 4. Rat`s groups fed the diets supplemented with 2~4% garlic (B,C,D,E) to standard diet (A) decreased serum glucose levels by 1~24%, but increased serum insulin concentrations by 0.5~3.0 times as compared to A group, and so the author assumes the garlic supplementation exerts hypoglycemic effect because of the increase of serum insulin levels by stimulating pancreatic secretion of insulin from β-cells in the islets of Langerhans.
한국산 잣기름이 정상토끼 및 동맥경화증 유발 토기의 적혈구막 지방산조성에 미치는 영향
윤태헌,이상무 동아시아식생활학회 1994 東아시아食生活學會誌 Vol.4 No.1
The present study was carried out in normal and atherosclerotic New Zealand white(NZW) rabbits, to evaluate the effect of dietary supplementation with Korean pinenut oil, on the total fatty acid composition of red blood cell membranes. Erythrocyte fatty acids of chain lengths ranging fro 12 : 0 to 22 : 6$\omega$3 were identified. In study I, palmitic acid(16 : 0) was found to be the main erythrocyte membranes fatty acid, followed in turn by stearic(18 : 0), oleic(18 : 1), and linoleic acids(18 : 2$\omega$6). There was a large increase in the proportion of 20 : 4$\omega$6 in 10% pinenut oil group on days 40 and 80(compared with control), although the increase was not statistically significant. Most erythrocyte fatty acids were less affected by the types or levels of oils supplemented for periods fo 40 and 80days. In study II,at the end of the dietary treatment, the levels of 12 : 0, 14 : 0, 15 : 0 and 18 : 0 were significantly decreased in the 5% soybean oil/cholesterol group, whereas those of 12 : 0, 14 : 0 and 18 : 0 were significantly decreased, but that of 18 : 2$\omega$6 was significantly increased in the 10% soybean oil/cholesterol group, compared to the cholesterol group. No significant differences in fatty acid composition were seen between the pinenut oil/cholesterol group, whereas the 10% soybean oil/cholesterol group had significantly elevated 18 : 2$\omega$6, compared to the cholesterol group. The proportion of 18 : 4$\omega$6 was significantly raised in the 5% soybean oil/cholesterol and 5% pinenut oil/cholesterol group, and the content of 16 : 1$\omega$7 was significantly lowered in the 5% and 10% soybean/cholesterol groups, compared to the cholesterol group at 10 weeks supplementation. In studies I,II and III, the total proportions of saturated fatty acids were not significantly affected by the types of levels of oils supplemented throughout the study period.
윤태헌 한국유화학회 1992 한국응용과학기술학회지 Vol.9 No.1
The needles and pollen of Pinus densiflora and Pinus koraiensis studied for their lipid contents and fatty acid composition. The total lipid contents in needles of Pinus densiflora and pinus koraiensis were 50. and 4.5%, whereas in pollen of Pinus densiflora and Pinus koraiensis 3.5 and 5.6%, respectively. Twenty-four fatty acids ranged from lauric acid to docosahexaenoic acid(22 : 6w3) were identified in the needle lipids. In needles, linolenic acid and palmitic acid were the major fatty acids. The needles of Pinus densiflora showed higher proportions of docosahexaenoic acid and 5-olefinic nonmethylene-interrupted polyenoic acids than those in the Pinus koraiensis. Twenty fatty acids ranged from myristic acid to lignoceric acid were identified in the pollen lipids. Linoleic acid was the major fatty acid in the pollen followed by oleic and palmitic acid. The fatty acid profile of pollen of Pinus densiflora was similar to those of the Pinus koraiensis pollen lipids.