• Title/Summary/Keyword: oil contents

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Effects of the Feeds Mixed with Various Level of Lard , Perilla Oil and Evening Primrose Oil on Fatty Acid Compositions of Liver and Brain Tissue in Rats (돈지, 들깨유 및 달맞이꽃 종자유의 혼합급이가 흰쥐의 간장 및 뇌조직의 지방산 조성에 미치는 영향)

  • 김성희;김한수;김군자;최운정;김소영;정승용
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.4
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    • pp.555-560
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    • 1994
  • In order to observe the effects of the fees mixed with the lard and two vegetable seed oils on the fatty acid compositions of liver and brain tissue, the oils mixed with 2.5% lard and various levels of perilla oil and evening primrose oil were administered to the male rats of the Sprague-Dawley for 4 weeks . In the fatty acid composition of liver lipid, saturated fatty acid (SFA) contents were rich in the phopholiipide and cholesteryl ester fraction. Monounsaturated fatty acid (MUFA) contents were rich in the triglyceride fraction and polyunsaturated fatty acid (PUFA) contents were rich in the phospholipid fraction. In the fatty acid composition of liver lipid fractions, according as the contents of mixed perilla oil decreased and the contents of mixed evening primrose oil increased , n -3 PUFA contents tended to decrease and n-6 PUFA contents tended to increase. Fatty acid composition of liver lipid fractions were influenced from the fatty acid composition of the test lipids. In the fatty acid composition of brain phospholipd, PUFA contents (40%) were rich and according as the contents of mixed evening primrose oil increased, the ratio on n-3/n-6 PUFA and eicosapentaenoid acid (EPA) /arachidonic acid (AA) tended to slightly decrease.

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Identification of Quantitative Trait Loci (QTLs) Associated with Oil and Protein Contents in Soybean (Glycine max L.) (콩에서 Microsatellite marker률 이용한 oil 및 단백질 함량의 양적형질 유전자좌의 분석)

  • Kim, Hyeun-Kyeung;Kang, Sung-Taeg
    • Journal of Life Science
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    • v.14 no.3
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    • pp.453-458
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    • 2004
  • Soybean oil and protein contents are very important as a nutritional component of food. The seed composition as oil and protein are polygenic traits. In this study, the Keunolkong${\times}$Iksan10 populations were evaluated with SSR markers to identify QTLs related to oil and protein contents. Three related independent QTLs near the marker satt100 on LG C2, satt546 on LG D1b+W and satt418 on LG L were identified oil contents. The three independent QTLs near the marker satt556 on LG B2, satt414 on LG J and satt238 on LC L were identified of protein contents. In the results of this study, common QTLs on LG L was associated with seed oil and protein contents. In the result of this study, it is believed that the seed composition material as oil and protein contents were mainly controlled by environmental stresses and they are seed size on genotypes.

Dietary Olive Oil, Canola Oil, and Sardine Oil on Fatty Acids Composition and Cholesterol Contents in Eggs (올리브기름, 카놀라기름 및 정어리기름의 급여가 계란의 지방산 조성 및 콜레스테롤 함량에 미치는 영향)

  • 박구부;김진형;김진성;진상근;신택순;이정일;박태선;성필남
    • Korean Journal of Poultry Science
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    • v.24 no.3
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    • pp.145-151
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    • 1997
  • This study was conducted to investigate the influence of dietary olive oil, canola oil, or sardine oil on the fatty acids composition and cholesterol contents in eggs The experimental layers, 62~65 weeks of age, were randomly allotted to one of the four treatments; a) Control (commercial feed), b) T1 (commercial feed plus 10% olive oil), c) T2 (commercial feed plus 10% sardine oil), d) m (commercial feed plus 10% sardine oil) for 3 weeks. The egg samples were stored at 4${\pm}$1˚C for a certain period (1, 3, 5, 7, and 9 days) and analyzed for the fatty acids composition and cholesterol contents. The unsaturated fatty acid contents in the egg yolk were slightly decreased as the storage periods extended. The oleic acid content in T1 was the highest in all treatments. The linoleic and linolenic acid contents in T2 were higher than in the other treatments. The eicosahexaenoic acid (EPA), docosapentaenoic acid (DPA), and docosasahexaenoic acid ( DH A) contents in eggs from m were higher than the other treatments. The ratio of egg yolk n-6 /n-3 fatty acids contents in all treatments were slightly increased as the storage periods extended. The n-3 fatty acid contents of the egg yolk from T3 was the highest in all treatments. The cholesterol contents of the eggs were significantly decreased as the storage period extended(P<0.05). There was no significant difference in egg cholesterol content among all treatments.

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The Effect of Docosahexanoic Acid-Rich Fish oil Added to Different Dietary Fats on Lipid Metabolism in Rat (종류가 다른 식용유지에 첨가된 고DHA(Docosahexaenoic Acid) 어유가 흰쥐의 지질대사에 미치는 영향)

  • 이경애
    • Journal of Nutrition and Health
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    • v.28 no.4
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    • pp.268-281
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    • 1995
  • This study was undertaken to elucidate the effect of DHA-rich fish oil (DHA-rich oil) added to different dietary fats on lipid metabolism. Rats were fed perilla oil, sesame oil and beef tallow with or without DHA-rich oil for 12 weeks. The weight gain was higher in groups with DHA-rich oil than that of groups without DHA-rich oil, with DHA-rich oil, while weight of epididymal fat pad was lower in perilla oil and beef tallow groups with DHA-rich oil. The contents of total lipid and triglyceride in plasma were not affected by dietary fat types, but that of total and HDL cholesterol in plasma were higher in sesame oil group than perilla oil and beef tallow groups without DHA-rich oil. The contents of total lipid, triglyceride, total cholesterol, HDL cholestrol and LDL cholesterol in plasma were decreased by DHL-rich oil addition. The contents of total lipid, total cholesterol and triglyceride in the liver were not affected by dietary fat type. The contents of total cholesterol and triglyceride in the liver were not affected by dietary fat type. The contents of total lipid and TG in liver were not affected by DHA-rich oil addition while hepatic cholesterol increased by DHA-rich oil addition. The activities of glucose 6-phosphate dehydrogenase and malic enzyme were highest in beef tallow group without DHA-rich oil and decreased by DHA-rich oil addition. Peroxisomal ${\beta}$-oxidation had an inverse relationship against the activities of lipogenic enzymes. In conclusion, dietary DHA-rich oil decreased fat accumulation and had hypolipidemic effect, especially in beef tallow group. Also groups with DHA-rich oil showed more hypolipidemic effect than perilla oil group. And DHA-rich oil addition to diets resulted in increasing dietary n-3/n-6 ratio. Therefore increase in n-3/n-6 ratio as well as dietary DHA were considered to be responsible for the hypolipidemic effect resulted from DHA-rich oil addition.

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CO2 Emission Characteristics of Bunker C Fuel Oil by Sulfur Contents (C 중유의 황 함유량에 따른 CO2 배출 특성)

  • Lim, Wan-Gyu;Doe, Jin-Woo;Hwang, In-Ha;Ha, Jong-Han;Lee, Sang-Sup
    • Journal of Korean Society for Atmospheric Environment
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    • v.31 no.4
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    • pp.368-377
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    • 2015
  • Bunker C fuel oil is a high-viscosity oil obtained from petroleum distillation as a residue. The sulfur content of bunker C fuel oil is limited to 4.0% or even lower to protect the environment. Because bunker C fuel oil is burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, carbon dioxide is emitted as a result of combustion. The objective of this study is to investigate $CO_2$ emission characteristics of bunker C fuel oil by sulfur contents. Calorific values and carbon contents of the fuels were measured using the oxygen bomb calorimeter method and the CHN elemental analysis method, respectively. Sulfur and hydrogen contents, which were used to calculate the net calorific value, were also measured and then net calorific values and $CO_2$ emission factors were determined. The results showed that hydrogen content increases and carbon content decreases by reducing sulfur contents for bunker C fuel oil with sulfur contents less than 1.0%. For sulfur contents between 1.0% and 4.0%, carbon content increases as sulfur content decreases but there is no evident variation in hydrogen content. Net calorific value increases by reducing sulfur contents. $CO_2$ emission factor, which is calculated by dividing carbon content by net calorific value, decreases as sulfur content decreases for bunker C fuel oil with sulfur contents less than 1.0% but it showed relatively constant values for sulfur contents between 1.0% and 4.0%.

Effect of Dietary Perilla Seed Oil on Lipid Metabolism in Rats (들깨유가 흰쥐의 체내 지질대사에 미치는 영향에 관한 연구)

  • 장순덕;노숙령
    • Journal of Nutrition and Health
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    • v.24 no.5
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    • pp.408-419
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    • 1991
  • The effects of various dietary fats on plasma lipids. liver lipids, and Plasma Peroxide levels were studied in rats fed for 6 wk with diets containing 15 wt% fat, as sesame oil. raw perilla seed oil. roasted perilla seed oil, heated perilla seed oil. mackerel oil or beef tallow. TBA values of these lipids during 4 wk storage, and linolenic acid contents of three kinds of perilla seed oil were also measured. Linolenic acid contents of raw perilla seed oil. roasted perilla seed oil and heated perilla seed oil were 62.3%, 61.6% and 53.1% respectively. Raw perilla seed oil showed the lowest rate of lipid peroxidation after 4 wk storage at 4$^{\circ}C$, and mackerel oil showed the highest peroxidation rate. The plasma cholesterol levels of rats consuming diets in which the carbohydrate was rice were not affected by n-3 PUFA. Rather, the degree of peroxidation seems to have a direct effect on cholesterol levels as shown by the hypocholesterolemic effect of raw perilla seed oil and beer tallow. However. the HDL-cholesterol level was greater in rats fed either roasted perilla seed oil or mackerel oil. Rats fed roasted perilla seed oil and raw perilla seed oil had lower levels of plasma triglycerides than rats fed beef tallow. In rats fed roasted perilla seed oil, the total lipid and cholesterol contents of liver were significantly lower than in those fed the other kinds of perilla seed oil. The plasma lipid peroxide levels were lower in rats fed either roasted perilla seed oil or beef tallow.

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Effects of Fish Oil Supplementation on Growth Performance, Fatty Acid Composition of Longissimus Muscle and Carcass Characteristics in Hanwoo Steers (Fish Oil의 첨가가 한우 거세우의 육성성적, 배최장근의 지방산 조성 및 도체특성에 미치는 영향)

  • Park, B.K.;Shin, J.S.
    • Journal of Animal Science and Technology
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    • v.49 no.1
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    • pp.51-58
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    • 2007
  • Twenty Hanwoo steers (average body weight=440.8±32.4kg) were used to investigate the effects of fish oil supplementation on growth performance, fatty acid composition of longissimus muscle and carcass characteristics. The experiment was done with two treatment groups; FO-0, without fish oil and FO-3, supplemented with 3% fish oil. Total gain and average daily gain (ADG) of steers were similar between two groups. Fish oil supplementation had no effects on contents of protein, ether extract and ash in longissimus muscle. Contents of isoleucine and glycine in longissimus muscle were decreased by fish oil supplementation (p<0.05), but content of cystein was increased by fish oil supplementation (p<0.05). Fish oil supplementation decreased contents of myristic acid and eicosenoic acid in longissimus muscle (p<0.05), but increased contents of oleic acid and arachidonic acid in longissimus muscle (p<0.05). Contents of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in longissimus muscle were increased by fish oil supplementation p<0.05). Carcass weight, back fat thickness, rib-eye area, yield index and yield grade were similar between two groups. Meat color was improved by fish oil supplementation (p<0.05), Ratio of quality grade ‘1 or over’ increased by fish oil supplementation. Therefore, the present study indicating that fish oil supplementation had positive effects on content of oleic acids in relation to flavor of beef, contents of EPA and DHA in relation to human health and ratio of quality grade ‘1 or over’.

Effect of an Oil-Water Fryer on Quality Properties of Deep Frying Oil Used for Chicken (닭튀김유의 품질 특성에 대한 Oil-water fryer의 효과)

  • Son, Jong-Youn;Kang, Kun-Og
    • Korean journal of food and cookery science
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    • v.28 no.4
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    • pp.443-450
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    • 2012
  • This study was investigated the effect of an oil-water fryer on quality properties of deep frying oil used for chicken. The acid and conjugated dienoic acid values of frying oil using an oil-water fryer were lower than those using a deep fat fryer, whereas the iodine value of frying oil using an oil-water fryer was higher than that using a deep fat fryer. The peroxide values of frying oil did not increase with frying number. Frying oil with an oil-water fryer had lower palmitic acid, stearic acid and oleic acid, and higher linoleic and linolenic acid contents than those with a deep fat fryer. The contents of trans-fatty acids in frying oil using a deep fat fryer and oil-water fryer after frying 110 chickens were 0.75% and 0.47%, respectively. The benzopyrene contents of frying oil using a deep fat fryer and an oil-water fryer after frying 110 chickens were 2.20 and $1.61{\mu}g/kg$, respectively.

EPA, DHA and Tocopherol Contents in Fish Oil Products and Fishes (어유제품과 생선의 EPA, DHA 및 토코페롤 함량)

  • 김연경;주광지
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.1
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    • pp.68-72
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    • 1994
  • Six brands of encapsulated fishoil products and five fishes were analyzed for their contents of eicosapentaenoic acid (EPA 20 :5 n-3) , docosahexaenoic acid(DHA 22: 6 n-3) and tocopherols. In both of the fish oil products and the fishes, major fatty acids were palmitic acid, oleic acid, eicosapentaeoic acid and docosahexaenoic acid and fatty acid compositions were also similar pattern each other. EPA showed variable amounts from 19.2 to 50.3% in the oil products whereas DHA were 13.2% to 28.3% inthe fishes. Tocopherols were studied in relation to the oxidative stability of fish products no relation was observed. However the amount of tocopherols in fish oil proudcts were higher than that of fishes. Contents of EPA, DHA and tocopherols in encapsulated fishoil products oil products were variable comparing with manufactures' claimed contents.

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Studies on the Contents of Special Components and Estimation of Purity in Sesame oil -I : Contents of Sesamin and Sterols- (참기름의 특이성분함량(特異成分含量)과 순도결정(純度決定)에 관(關)한 연구(硏究) (제(第) 1 보(報)) -Sesamin 및 관련(關聯)Sterol를 중심(中心)으로-)

  • Ro, Ihl-Hyeob;Lee, Moon-Sun
    • Journal of Nutrition and Health
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    • v.16 no.2
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    • pp.107-114
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    • 1983
  • There has been no specific test available for identifying the sesame oil among common edible oils. As the contents of sesamin and the ratio of sterols allowed the estimation for the genuine sesame oil, the author investigated to establish some instrumental methods for verification of genuine sesame oil and its distribution in the market. The sesame oil was saponified and the sesamin and sterols were isolated from the unsaponiable fraction by Florisil column chromatography. The individual components were determined by gas- chromatography and sesamin standard (purified sesamin) was obtained by silicagel column chromatography. The gas- chromatographic condition using Flame Ionization Detector supported on 10% OV-101 with di-(2-ethylhexyl) sebacate as an internal standard was suitable, and quantitation of sesamin and sterols, including campesterol, stigmasterol and ${\beta}-sitosterol$ was carried out. The results of this study showed that contents of sesamin in genuine sesame oil were 0.3-0.5% and the ratio of stigmasterol to compesterol was 0.3-0.6 and ${\beta}-sitosterol$ to campesterol 3.0-3.8. The 50 samples from the markets in Seoul were composed of 70% genuine sesame oil, and others were mixed with palm oil, rape seed oil and soybean oil.

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