• The Korean Journal of Food And Nutrition
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• v.8 no.3
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• pp.239-252
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• 1995

The results which were examined changes In contents of constitutive lipid and fatty acid during the natural drying of Pacific Saury were as follows. During the natural drying of Pacific Saury, offal lipid and moisture contents gradually decreased. In the survey of rancidity degree extracted lipid of Pacific Saury, peroxide value was gradually Increased, TBA and acid value were radically increased thereafter 9 days of drying. Neutral lipid, phospholipid and glycolipid contents of total lipid were 95%, 4% and 2%, respectively, and in the neutral lipid, content of TG was more than 90%, and in the phospholipid, contents of PC and PE were 45∼85%, 27∼34%, respectively. Fatty acid composition of total lipid was substantially higher in C18:0 and C20:1, C22:1, C22:6 contents and fatty acid composition of neutral lipid was higher In C22:1, C22:1, contents and fatty acid composition of phospholipid was the highest in C22:6 content. In the fatty acid composition of glycolipid, monounsaturated fatty acid content has substantially higher, C16:0 content was gradually Increased In saturated fatty acid and C22:1 content was gradually decreased in monounsaturated fatty acid. It showed that fatty acid composition of triglyceride has higher in monounsaturated fatty acid content and contents of C20:1, C22:1 was gradually decreased.

• Korean journal of food and cookery science
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• v.2 no.2
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• pp.8-15
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• 1986

This study was carried out to investigate changes of the lipid contents and the fatty acid composition in shank during heating time and frozen storage. 1. The total lipid contents of raw shank were about 3.57% and decreased stepwise during heating time 30, 60, 90 min and frozen storage(24hrs) The contents of neutral lipid, glycolipid and phospholipid were 70.71%, 6.36%, and 22.93% in raw shank, and neutral lipid contents were decreased, whereas Phospholipid contents were increased according to heating tide. In frozen storage, neutral lipid and glycolipid contents were increased, while phospholipid contents were decreased. 2. Lipids of shank possessed about 8 kinds of fatty acid as the constituent by gas-liquid chromatography analysis. The main fatty acids were oleic acid, palmitic acistearic acid and linoleic acid: the fatty acids of total lipids in raw shank were 43.48% of oleic acid, 23.13% of palmitic acid,12.00% of stearic acid and 6.75% of linoleic acid. Also the fatty acids were 43.32% of oleic acid, 23.26% of palmitic acid, 9.30% of stearic acid 2.15% of linoleic acid in neutral lipid, 22.63% of oleic acid, 8.44% of palmitic acid, 11.98% of stearic acid, 27.01% of linoleic acidin glycolipid, 39.38% of oleic acid, 15.89% of palmitic acid, 15.55% of stearic acid, 17.49% of linoleic acid in phospholipid. 3. The fatty acid pattern of total lipid, neutral lipid, glycolipid and phospholipid was not any changes, whereas there was a difference in the fatty acid contents: palmitic acid and stearic acid of total lipid were decreased in the 30 min and 60 min heating but increased in 90min heating, and linoleic acid of neutral lipid was increased stepwise during heating time and frozen storage. Also palmiict acid of glycolipid was increased gradually and linoleic acid in heating time 30, 60 min was higher than 90 min and frozen storage. Among fatty acids in phoapholipid, oleic acid was increased during heating time, while decreased in frozen storage, and linoleic acid was not any change but linolanic acid was increased. UFA/SFA of phospholipid was the highest when heating time was 60 min. From above results, it was found that when heating time was 60 min beneficial nutritionally, comparing with changes of fatty acid composition according to the heating time aid frozen storage.

• Journal of Plant Biology
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• v.31 no.3
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• pp.187-196
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• 1988

Chlorella ellipsoidea were cultured in "cold" media starvated with the nitrate and phsophate sources. The effects of the nitrate and phsophate starvation on the biosynthesis of phospholipid and the composition of fatty acids in chloroplasts isolated from these cells were analyzed. The syntheses of phosphatidylcholine and phosphatidylinositol in the nitrate and phosphate starvation were similarly inhibited as compared with the control but phsophatidylethanolamine synthesis in the nitrate starvation was extremely lower than that in the phosphate starvation. The major fatty acids utilized in phospholipid formation within chloroplasts were palmitic acid and linolenic aicd. However, palmitic acid and stearic acid were dominant in the condition of the nitrate starvation. The levels of palmitic acid were enhanced 3-fold than that of the control. These results suggest that the biosynthesis of phospholipid and the composition of fatty acids were affected by the nitrate and phosphate starvation in the culture media.ure media.

• Journal of Plant Biology
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• v.35 no.1
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• pp.25-36
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• 1992

The effects of amphotericin B ($150\;\mu\textrm{g}/ml$) and cycloheximide ($10\;\mu\textrm{g}/ml$) on the biosynthesis of phospholipid and the composition of fatty acids in chloroplasts isolated from ChZorella were analyzed. The contents of the total lipid and phospholipid (PC, PE, PI) in treatment with antibiotics were lower compared with the control. In the whole cell system, the major fatty acids utilized for biosynthesis of phospholipid were palmitic acid (31.96%) and linoleic acid (16.96%) in control while those were palmitic acid (36.15%) and linolenic acid (16.71%) in treatment with amphotericin B. And in treatment with cycloheximide, palmitic acid (31.90%) and stearic acid (15.32%) were used in phospholipid formation. The major fatty acids in chloroplasts were analyzed as to be palmitic acid and linolenic acid in control (33.75%, 18.90%) and in treatment with amphotericin B (36.75%, 9.46%). However, it was shown that the major fatty acids in chloroplasts treated with cycloheximide were palmitic acid (28.01%) and oleic acid (19.27%).9.27%).

• Journal of Nutrition and Health
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• v.31 no.8
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• pp.1315-1323
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• 1998

Effect of oral taurine supplementation on plasma total and phospholidpid -fatty acid profiles and their metabolism were evaluated in healthy female adults. Among twenty five female volunteers(23.6$\pm$0.3 years old ) participated in the taruine supplementation program(6g taurine /day), twenty four subjects succesfully completed the 2 week program , and only nine subjects continued to take taurine for another 2 weeks. Levels of plasma fatty acids and taruine were measured by gas-liquid chromatobraphy and an automated amino acid analyzer based on ion exchange chromatography, respectively. Plasma taurine concentration s of the subjects were 108. 7$\pm$3.4 , 184.2$\pm$8.2 and 235.9$\pm$77.0$\mu$emol/L at 0 , 2 and 4 weeks of taurine supplementation. Fatty acid compositions and elongation and desaturation indices of polyunsaturated fatty acids (PUFA) in plasma total lipids were not influenced by oral taurine supplementation. However, fatty acid compositions and their metabolism in plasma phospholipids were significantly affected by taurine supplementation in female adults. Compared to the values for 0 week, the percentage of saturated fatty acids (SFA) in plasma phospholipid was significantly lowered at 2 weeks, but elevated at 4 weeks of taurine supplementation. In contrast , the percentage of phospholipid PUFA significantly increased at 2 weeks and decreased at 4 weeks of taurine supplementation from to the values for 0 weeks. Foru weeks of oral taurine supplementation signifinatly elevated the eongation index(20 : 4$\omega$6 ⇒22 : 4 $\omega$6, p<0.01), and decreased the desaturation index (20 : 3 $\omega$6 ⇒20 : 4 $\omega$6 , p<0.01) of $\omega$6 fatty acids in plasma phospholipids. Plasma taurine concentration was positively correlated with the percentage of 14 : 0 fatty acids and the enlongation index o f$\omega$3 fatty acids(20 : 5 $\omega$3 ⇒22 : 5 $\omega$3), and thenegatively correlated with the percentage of 20 : 0 in plasma phospholipids. These results indicate that oral taurine supplementation for 4 weeks signidicantly elelvated the percentage of SFA, and lowered the percentage of PUFA in plasma phospholipids with no influence on plasm total fatty aicd composition in healthy female adults.

• Applied Biological Chemistry
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• v.27 no.3
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• pp.211-213
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• 1984

The change in fatty acid compositions of the glycolipid and phospholipid of sesame seed was analyzed during the storage for 4, 9, and 15 months at four different storage conditions, that is, storage under light with linen bag(LA), storage under light with polyethylene bag(LS), storage in dark with linen bag(DA), and storage in dark with polyethylene bag(DS). In the fatty acid composition of glycolipid, palmitic and stearic acid decreased during the storage but the linoleic acid increased significantly, particularly, between 4 to 9 months of storage. The content of palmitic and stearic acid in phospholipid decreased until 9 months, then increased until 15 months of storage, but reverse tendency was, observed in the content of oleic and linoleic acid. The ratio of unsaturated to saturated fatty acids in glycolipid increased during the storage of 15 months in all the storage conditions. The ratio of unsaturated to saturated fatty acids of phospholipid in DA and LA was slightly higher than that in DS and LS conditions during the storage for 15 months.

• Journal of the Korean Society of Food Science and Nutrition
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• v.13 no.3
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• pp.259-262
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• 1984

In order to examine the effect of oil extraction methods on the charateristics of sesame oil, the fractionation pattern and fatty acid compositions of the each fraction of the oil were compared in the oil extracted by the three different extraction methods, that is, pressure extraction of roasted seed (RTP), acetone extraction of roasted seed (RTE) and acetone extraction of raw seed (RWE). The amount of triglyceride in RWE oil was slightly higher as 77.2% of the total lipid than that in RTP and RTE oil of 73.4%. The content of oleic and linoleic acid in glycolipld and fatty acid fractions, linoleic acid in triglyceride, and palmitic and stearic acid in phospholipid fractions from RTP and RTE oil were higher than those from RWE oil, but the oleic acid in triglyceride. Palmitic and stearic acid in free fatty acid, and oleic and linoleic acid in phospholipid from RTP and RTE oil were lower than those from RWE oil. The ratio of $C_{18}$ to $C_{16}$ fatty acids and unsaturated to saturated fatty acids in glycolipid and phospholipid fractions from RTP and RTE oil were higher than those from RWE oil, but the ratios in triglyceride and free fatty acid fractions from RTP and RTE oil were lower than those from RWE oil.

• Korean Journal of Soil Science and Fertilizer
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• v.24 no.2
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• pp.144-151
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• 1991

Composition and unsaturation ratio of fatty acids composing phospholipid which is the main constituent of biological membranes are known to be related to the response of plant to cold stress. In order to investigate a relationship between fatty acid unsaturation ratio of phospholipid and the range of cold tolerance of rice cultivars obtained in the field experiment, the lipid from the leaves of 32 rice cultivars were isolated and the fatty acid composition of phospholipid was determined by gas chromatography. In this experiment, composition and unsaturation ratio of fatty acids composing phopholipid on rice plants grown under natural condition and treated with chilling temperature were compared with the cold tolerance in the field for rice cultivars. The results obtained were summarized as follows ; 1. The phospholipids isolated from the leaves of 32 rice cultivars both grown under natural condition and chilling treatment contained palmitic, linoleic and linolenic acid as major components and palmitoleic, stearic and oleic acid as minor components. 2. The content of palmitic acid, a saturated fatty acid, was reduced in rice seedlings subjected to chilling treatment for 3 days at $15^{\circ}C$, and contents of linoleic and linolenic acid, unsaturated fatty acids, were increased. 3. The unsaturation ratio of fatty acid was increased by chilling treatment, and was high in cold-tolerant cultivars but low in cold-susceptible cultivars and the results were correlated with the range of cold tolerance investigated in the field. 4. The content of palmitic acids among fatty acids composing phospholipid was reduced and that of linolenic acid was increased by hardening treatment. 5. The unsaturation ratio of fatty acid was increased 18~24% by hardening treatment compared to control.

• Journal of Environmental Health Sciences
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• v.23 no.3
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• pp.91-101
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• 1997

The biosynthesis of phospholipid and the composition of fatty acid in C. ellipsoidea mitochondria treated with antibiotics(cycloheximide, nalidixic acid) during the culture analyzed. The growth of Chlorella and the contents of total lipid in mitochondria treated with antibiotics were lower than those of the control. The synthesis of PC (phosphatidylcholine) and PI(phosphatidylinostiol) were inhibited in the nalidixic acid treatment and also the contents of PC(phosphatidylcholine), PE (phosphatidylethanolamine), PG(phosphatidylglycerol) and PI(phosphatidylinositol) in the cycloheximide treatment were also inhibited. The major fatty acids utilized for the various phospholipids formation in each antibiotics treatment were analyzed stearic acid, myristic acid, palmitic acid, oleic acid, linoleic acid and linolenic acid at the late phase of the culture.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.5
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• pp.736-742
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• 1994

This study was designed to observe the effects of the mixed diets of edible mushrooms and vegetables oils on the lipid component and fatty acid composition in liver of the diet induced hydpercholesterolemic rats. Ten groups of male S.D. rats were fed a basal diet supplemented with 5% of one of three mushrooms(G.I, L.e, A.j) and 10% of one of three vegetable oils (olive ,safflower perilla) for three weeks. In liver, total cholesterol concentration was significantly low in group 3 (olive oil 10 % + L. edodes 5%) and 6 (safflower oil 10 % $_2$L. edodes 5%) , triglyceride concentration was low in groups 8 (perilla oil 10 % + g. lucidum 5%) and 9 (perilla oil 10% + L. edodes 5%) and phospholipid concentration was significantly low in groups 3, 5, (safflower oil 10 % + G.lucidum 5%), 6, 7 (safflower oil 10 % + A .judae 5%) 8, 9 and 10 (perilla oil 10% + a. judae 5%). in the fatty acid composition of total lipid inliver, monounsaturated fatty acid (MUFA) concentration s were high in groups 2 (olive oil 105 + g. lucidum 5%), 3, and 4 (olive oil 10% + A. judae 5%) and all the perilla oil groups, polyunsaturated fatty acid (PUFA) and linoleic aicd concentrations were signifciantly high in all the safflower oil groups. In the fatty acid composition of liver phospholipid , PUFA concentrations were ghih but MUFA concentrations were low. In the triglyceride component, MUFA were some more than saturated fatty acid (SFA) . In the cholesteryl ester component, MUFa concentrations were significantly high. In the fatty acid composition of liver lipid components, linholeic acid was high in the PUFA and so it was major fatty acid. Eicosapentaenoic acid (EPA) of phospholipid component in liver was significantly high.