• Title/Summary/Keyword: Palmitic acid

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A Study on the Changes of Fatty Acid Composition in Seeds of Mung Bean during the Ripening Process (한국산녹두(韓國産綠豆)의 성숙중(成熟中) 지방산함량변화(脂肪酸含量變化)에 관(關)한 연구(硏究))

  • Ko, Mu-Suk;Park, Bock-Hee;Rhee, Hang-Jae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.11 no.3
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    • pp.75-79
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    • 1982
  • For the purposes of clarifying the changes of fatty acid content in seeds of korean mung bean during the ripening process, samples ranging in five stages-10.15,20,25 and 30 days after blooming were collected and analyzed by gas liquid chromatography (GLC). The results obtained were as follows; The content of crude fat increased as ripening. Fatty acids detected in all stages were myristic acid palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid. Myristic acid and palmitic acid were not almost detected above the 3rd stage. Linoleic acid was the largest and the content of oleic acid and linolenic acids was similar. The saturated and unsaturated fatty acid ratio during the ripening process was 16-19/81-84%.

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A Study on the Changes of Fatty Acid Composition of Phospholipid and Glycolipid during Storage Period of Kaesojoo (저장기간에 따른 개소주의 Phospholipid 및 Glycolipid의 지방산 변화에 관한 연구)

  • 박창일;김영직;김영길
    • Food Science of Animal Resources
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    • v.18 no.4
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    • pp.332-338
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    • 1998
  • This experiment was carried out to investigate the changes in phospholipid and glycolipid of Kaesojoo and Kaesojoo added medicinal herbs during storage(30 days) at 4$^{\circ}C$and -18$^{\circ}C$. Two dogs with 12kg live weight(♀, The Korean Jindo dog Hy-breed, 11∼12 month) were slaughtered to obtain samples. The result obtained were as follows: The saturated fatty acids found in phospholipid of Kaesojoo were palmitic acid, stearic acid, myristic acid, while the unsaturated fatty acid found in phospholipid of Kaesojoo with medicinal herbs were palmitic acid, stearic acid, arachidonic acid, while the unsaturated fatty acid were mostly oleic acid, increased during the period of storage. The saturated fatty acid found in glycolipid obtained from Kaesojoo were mostly oleic acid, linoleic acid and linolenic acid. The saturated fatty acid obtained from Kaesojoo with medicinal herbs were palmitic acid, stearic acid, while the unsaturated fatty acid were mostly oleic acid, linoleic acid and linolenic acid. The rates of changes in unsaturated and saturated fatty acid were higher at 4$^{\circ}C$ than that of -18$^{\circ}C$ during storage.

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A Comparative Study on the Compositions of Fatty Acids and Sterols of Hirneola auricula-Judae and Gyrophora esculenta (한국산(韓國産) 목이(木耳)와 석의(石衣)의 지방산(脂肪酸) 및 스테롤 성분(成分) 조성(組成)에 관(關)한 비교(比較) 연구(硏究))

  • Nam, Jung-Won;Ko, Young-Su
    • Korean Journal of Food Science and Technology
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    • v.12 no.1
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    • pp.6-12
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    • 1980
  • Compositions of fatty acid and sterol of Hirneola auricula-Judge and Gyrophora esculenta produced is Korea were analyzed by gas liquid chromatographic(GLC) and infra red(IR) spectro-photometric techniques. As results, H. auricula showed linoleic acid 33.73, palmitic acid 15.52, stearic acid 5.03, oleic acid 16.03, linolenic acid 17.80, and unknown acid 11.89 % respectively, in their composition, while G. esculenta linoleic acid 46.35, palmitic acid 31.71, oleic acid 16.82, unknown acid 5.12 %, and trace of stearic and linolenic acids, respectively. Sterols were separated by thin layer chromatographic technique from both samples and identified by IR analysis. Two sterols, sitosterol and ergosterol, were present in both samples.

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The Effect of Metal Compounds em Biosynthesis of Phospholipid and the Fatty Acid Composition in Escherichia coli and Bacillus subtilis (Escherichia coli와 Bacillus subtilis의 인지질 생합성과 지방산 조성에 미치는 금속 화합물의 영향)

  • Park, Hye-Kyeong;Lee, Chong-Sam;Seo, Kwang-Seok
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.4 no.1
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    • pp.43-70
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    • 1994
  • The effects of potassium chromate (500ppm/500ppm), potassium dichromate (500ppm/500ppm), cobalt chloride (100ppm/10ppm), methylmercuric chloride (100ppm/10ppm) on the biosynthesis of phospholipid and their composition of fatty acids in E.coli and B.subtilis were analyzed. The contents of phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, phosphatidylglycerol, cardiolipin and total lipids in treatment with metal compounds were lower to compare with the control. The major fatty acid utilized for biosynthesis of phospholipid was palmitic acid in control of E.coli and B.subtilis. However, in treatment with metal compounds, changes of fatty acid composition utilized for phospholipid formation were as follows. In E.coli major fatty acids were palimitic acid (ave. 26.26%) and cis-vaccenic acid (ave. 10.94%) in treatment with potassium chromate, palmitic acid (ave. 31.41%/31.42%) and stearic acid (ave. 17.92%/19.41%) in treatment with potassium dichromate and cobalt chloride. And in treatment with raethylmercuric chloride, palmitic acid (ave. 26.66%), stearic acid (ave. 15.50%) and cis-vaccenic acid (ave. 20.59%) were used in phospholipid formation. In B.subtilis, the major fatty acid was palmitoleic acid (ave. 15.29% /10.22%) in treatment with potassium chromate and cobalt chloride, and stearic acid (ave. 16.01%) in treatment with potassium dichromate. On the other hand, cis-vaccenic acid (ave. 9.09%), palmitic acid (ave. 17.23%), stearic acid (ave. 6.66%), myristic acid (ave. 6.34%) and lauric acid (ave. 4.75%) were analyzed into major fatty acids in treatment with methylmercuric chloride. As shown in results, specific fatty acid pattern was came out in treatment with metal compounds according to bacteria and treatments.

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Effect of ginseng Saponin on the fatty acid composition of the lipids of Rhodotorula glutinis. (인삼 Saponin이 Rhodotorula glutinis의 지방산 조성에 미치는 영향)

  • 이시경;주현규
    • Microbiology and Biotechnology Letters
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    • v.13 no.2
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    • pp.109-114
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    • 1985
  • This study was attempted to observe the effect of crude ginseng saponin on the cell growth, lipid contents of Rhodotolula glutinis cells and fatty acid composition of the lipids from the yeast. The results obtained were as follows; The weight of dry yeast cells was increased by the addition of ginseng saponin and was noticeably increased in the treatment containing 10$^{-2}$ % ginseng saponin. With the increase of ginseng saponin concentration, lipids contents in Rhodotorula glutinis were increased but it's contents were decreased at the concentration of 10$^{-1}$ % ginseng saponin. The crude lipids of Rhodotorula glutinis were identified to be composed of palmitic, stearic, oleic, linoleic acid. Un-saturated fatty acid contents were greater than those of saturated fatty acids. Fatty acid contents were increased in the order of oleic, linoleic, palmitic and stearic acid, but palmitic acid was increased more than linoleic acid in the lipids of cells obtained at the higher than 10$^{-2}$ % ginseng saponin. As the ginseng saponin concentration was increased fatty acid contents were also increased, while they were considerably decreased in case of the addition of 10$^{-1}$ % ginseng saponin concentration.

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Analysis of Chemical Components of Korean Loquat (Eriobotrya japonica Lindl.) Fruit (국내산 비파 열매의 화학적 성분 분석)

  • Lee, Boo-Yong;Park, Eun-Mi;Kim, Eun-Jeong;Choi, Hee-Don;Kim, In-Hwan;Hwang, Jin-Bong
    • Korean Journal of Food Science and Technology
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    • v.28 no.3
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    • pp.428-432
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    • 1996
  • The chemical components of Korean loquat (Eriobotrya japonica Lindl.) fruit were analysed. Approximate compositions of loquat flesh and seed were as follows. respectively crude lipid 0.53% and 0.83%, crude protein 0.05% and 5.27%, crude fiber 3.46% and 3.49%, crude ash 3.24% and 2.78%, carbohydrate 92.72% and 87.63% Soluble solids content, pH and acidity (citric acid) of loquat flesh juice were $12^{\circ}Bx$ by saccharometer, 4.43 and 0.18%, respectively. Free sugar compositions of loquat flesh and seed extracts $(3^{\circ}Bx)$ were as follows, respectively; fructose 0.77% and 0.31%, glucose 0.73% and 0.79%, sucrose 0.52% and 0.19%, ribose and 0.56%, Loquat flesh contained Glu 336.72 mg%, Asp 251.06 mg%, Arg 30.90 mg% and Lys 5.26 mg% Loquat seed contained Glu 448.23 mg%, Asp 335.63 mg%, lle 44.20 mg% and His 37.89 mg%, Potassium (k) contents of loquat flesh and seed were 32627.95 mg% and 28936.28 mg% in total amount of crude ash, while vitamin A and C of loquat flesh and seed were not detected. Composition of major lipid of loquat fruit seed oils fractionated by silicic acid was neutral lipids 43.78%, glycolipids 12.32% and phospholipids 43.90%, Fatty acid compositions of loquat seed lipid extracted by chloroform-methanol (2 : 1) were as follow; palmitic acid 23.72%, stearic acid 3.815, oleic acid 8.55%, linoleic acid 54.29% and linolenic acid 9.63%, Neutral lipids consist of palmitic acid 28.89, stearic acid 6.80%, oleic acid 11.07%, linoleic acid 40.67% and linolenic acid 12.58%, Glycolopids cinsist of palmitic acid 13.21%, stearic acid 4.56%, oleic acid 6.53%, linoleic acid 64.92% and linolenic aicd 10.77% Phospholipids consist of palmitic acid 30.95%, stearic acid 3.40%, oleic acid 9.09%, linoleic acid 48.45% and linolenic acid 8.10%.

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Effects of Phytohromones on Biosynthesis of Phospholipids and Their Fatty Acid Compositions in Chlorella ellipsoidea Chloroplast (Chlorella ellipsoidea 엽록체의 인지질 생합성 및 지방산 조성에 미치는 식물호르몬의 효과)

  • 나형심
    • Journal of Plant Biology
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    • v.35 no.4
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    • pp.371-383
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    • 1992
  • The effects of IAA $(10^{-3}M)\;an;GA_3\;(2{\times}10^{-8}\;M)$ on the biosynthesis of phospholipids and their fatty acid compositions in chloroplast isolated from Chlorella ellipsidea were analyzed. Growth ratio and the levels of total lipids and phospholipids in whole cell system and chloroplast treated with phytohormones were higher than those of control, and when treated with GAl. phosphatidylcholine content was predominantly higher than that of control. It was showed that in whole cell system the fatty acid utilized for biosynthesis of phopholipids was 27.43% for palmitic acid in control, while that was 20.25% for linolenic acid in treatment with 1M. In treatment with $GA_3$, 23.17% for linolenic acid was used in phospholipid formation. The major fatty acid in the chloroplst system was analyzed to be 35.67% for palmitic acid in control and in treatment with 1M, 24.91% for linolenic acid was used in phospholipid formation, while in treatment with $GA_3$, major fatty acid of phospholipids was 22.80% for linoleic acid.c acid.

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Seed Protein Content and Fatty Acid Composition of Soybeans collected from Southwestern Islands in Korea

  • Kwon, Byung-Sun;Shin, Jeong-Sik;Choi, Seong-Kyu
    • Plant Resources
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    • v.5 no.3
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    • pp.181-186
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    • 2002
  • The 129 soybean genotypes were collected in 43 island locations from January to May 2001. Seeds of 129 genotypes collected were analyzed for crude protein and fatty acid composition contents. The crude protein content was averaged to 41.1 % and ranged from 37.4% to 44.4%. The average palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid content were 12.0%, 4.0%, 23.2%, 55.5%, and 7.9%, and the ranges of those were 10.0% to 15.0%, 3.0% to 4.8%, 21.7% to 25.5%, 50.2% to 58.3% and 7.0% to 12.0%, respectively. Heritabiliries of palmitic acid, oleic acid, linoleic acid, and crude protein were higher, but that of stearic acid and linolenic acid were relatively lower. The genotypic correlation coefficients between crude protein and oleic acid showed highly positive correlation, but that of linoleic acid showed highly opsitive correlation, but that of linoleic acid showed highly negative correlation and also palmitic acid, stearic acid and linolenic acid showed negative correlation.

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Composition of Lipid and Amino Acid in Semisulcospira gottschei Tissues (다슬기중 지방질 및 아미노산 조성)

  • 심태흠;한규석;이태준;정의호;이해금
    • Journal of Food Hygiene and Safety
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    • v.9 no.2
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    • pp.81-87
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    • 1994
  • This study was performed to investigate the detailed lipid content, lipid composition and amino acid composition of Semisulcospira gottschei tissues. Lipids of Semisulcospira gottschei tissues were extracted by the mixture of chloloform-methanol, fractionated into neutral lipids, glycolipids and phospholipids by silicic acid column chromatography and the composition of these lipid classes were determined by TLC and GLC. the amino acids in Semisulcospira gottschei tissues was analyzed by the amino acid auto analyzer. The total lipids content was 1.4% and the main components of the total lipids were neutral lipids 67.9%, glycolipids 19.3% and phospholipids 12.8%, respectively. The main fatty acids of total lipids were palmitic acid (20.5%), palmitoleic acid (16.45) and linolenic acid+eicosenoic acid (15.0%) and linoleic acid(13.1%), the main fatty acids of glycolipids were palmitic acid (41.9%), palmitoleic acid (19.7%) and oleic acid (11.7%), and the main fatty acids of phospholipids were linolenic acid+eicosenoic acid (55.1%), oleic acid (17.3%) and palmitic acid (11.4%). The main amino acids were glutamic acid (16.0%) and aspartic acid (11.1%).

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The Fate of Aspen Extractives in Kraft Pulping and Oxygen Delignification

  • Shin, Soo-Jeong;Lai, Yuan-Zong
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.37 no.3
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    • pp.74-80
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    • 2005
  • The compositions of residual extractives in woodmeal, unbleached and oxygen-delignified aspen kraft pulps were investigated with gas chromatography(GC) and gas chromatography-mass spectrometry (GC-MS) with focus on fate of extractives in kraft pulping and oxygen delignification. Steryl esters and shorter retention time (shorter than palmitic acid) extractives were main extractives in aspen woodmeal. Shorter retention time extractives were well removed in kraft pulping. Sterol esters were hydrolyzed to sterols and fatty acids. Sterols and fatty acids were two major extractives classes in unbleached kraft pulps. Linoleic acid was main fatty acids in unbleached pulps compared with palmitic acid which is generally found in aspen woodmeal. Sterolsand fatty acids were also two major extractives classes in oxygen-delignified kraft pulps. However, linoleic acid was well removed in oxygen delignification.