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The effect of Antiseptics on the Galactolipid Metabolism of Chlorella ellipsoidea Chloroplast and Thylakoid Envelope (Chlorella ellipsoidea 엽록체막과 틸라코이드막의당지질 대사에 미치는 식품보존제의 효과)

  • 최은아;장재선;이종삼
    • Journal of Food Hygiene and Safety
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    • v.13 no.3
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    • pp.221-231
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    • 1998
  • The biosynthesis of galactolipid and the composition of fatty acid in chloroplast and thylakoid envelope isolated from C. ellipsoidea treated with antiseptics (potassium sorbate: PS, sodium benzoate:SB, calcium propionate:CP) were analyzed. The contents of monogalactosyldiacylglycerol (MGDG), digalactosyldiacylglycerol (DGDG) and total lipid in treatment with antiseptics were lower to compared with the control. The major fatty acid utilized for biosynthesis of MGDG in chloroplast envelope were palmitoleic acid (ave. 15.55%), oleic acid (ave. 15.09%) in control. Otherwise, the major fatty acids in P.S treatment were utilized for oleic acid (ave. 13.71%), linolenic acid (ave. 14.36%), palmitoleic acid (ave. 18.26%), oleic acid (ave. 17.26%) in S.B treatment, and oleic acid (ave. 16.88%), palmitoleic acid (ave. 16.31%) in CP treatment. It was showed that the major fatty acids in chloroplast envelope DGDG were oleic acid (ave. 15.75%), linolenic acid (ave. 17.74%) in control, oleic acid (ave. 14.90%), palmitoleic acid (ave. 15.97%) in P.S treatment, palmitoleic acid (ave. 13.29%), oleic acid (ave. 15.74%) in S.B treatment, and oleic acid (ave. 14.52%), palmitoleic acid (ave. 14.03%) in C.P treatment. The major fatty acid utilized for biosynthesis of MGDG in thylakoid envelope were linolenic acid (ave. 14.78%), oleic acid (ave. 12.90%) in control. Otherwise, the major fatty acids were utilized for palmitoleic acid (ave. 13.00%), palmitic acid (ave. 13.00%) in P.S treatment, palmitoleic acid (ave. 12.94%), oleic acid (ave. 12.43%) in S.B treatment, and oleic acid (ave. 12.43%), palmitoleic acid (ave. 12.43%) in C.P treatment. It was showed that the major fatty acids in thylakoid envelope DGDG were linolenic acid (ave. 18.01 %), oleic acid (ave. 15.53%) in control, linolenic acid (ave. 19.20%), linoleic acid (ave. 14.14%) in P.S treatment, palmitoleic acid (ave. 9.03%), oleic acid (ave. 14.85%) in S.B treatment, oleic acid (ave. 13.90%), linolneic acid(ave. 12.66%) in C.P treatment.

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Influence of Cholesterol Derivatives on the Several Physicochemical Properties of Oleic acid (Oleic acid의 여러 물리화학적 성질에 미치는 Cholesterol계 유도체의 영향)

  • Ahn, Beom-Shu
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.3
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    • pp.813-820
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    • 2019
  • The influence of cholesterol on the physicochemical properties of the oleic acid was clarified through the measurements of density, viscosity, IR, $^1H$ NMR, self-diffusion coefficient for the oleic acid samples containing a small amount of additives such as cholesterol, cholestanol, cholestane, cholesteryl oleate, benzene, and ethanol. Cholesterol, possessing one OH group and one double bond in its molecular structure, largely increased the viscosity and reduced the self-diffusion coefficient and the intramolecular movement of oleic acid. Oleic acid forms a complex with cholesterol as well as with ethanol. On the basis of these complex formations and the existence of the clusters composed of oleic acid dimers, it was known the role and the fundamental mechanism of cholesterol to the intermolercular and intramolecular movements of oleic acid in the liquid state.

Effects of Rumen Protected Oleic Acid in the Diet on Animal Performances, Carcass Quality and Fatty Acid Composition of Hanwoo Steers

  • Lee, H-J.;Lee, S.C.;Oh, Y.G.;Kim, K.H.;Kim, H.B.;Park, Y.H.;Chae, H.S.;Chung, I.B
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.7
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    • pp.1003-1010
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    • 2003
  • The effects of different rumen protected forms, oleamide, Ca oleate, of dietary oleic acid on the carcass quality and fatty acid composition in intramuscular and subcutaneous fat tissues of Hanwoo steer were examined. Sixty, 25 month old Hanwoo steers divided into three groups were fed no supplement (Control), 2% of oleamide (Oleamide) or Ca-oleate (Ca-Oleate) in their diet for 45 or 90 days. Disappearance rates of oleic acid supplements in digestive tracts (Rumen bypass, abomasal and intestinal disappearance rate) were 48.5, 68.4 for oleamide and Ca oleate, respectively. Both oleic acid supplements affected feed intake, growth rate, cold carcass weight and carcass fatness. Live weight gain, carcass weight, backfat thickness and marbling score were higher in the oleic acid supplemented steers compared with those from the control. Oleic acid supplements increased marbling score and ether extract in Hanwoo steer m. logissi thoracicmus. Rumen protected oleic acid increased not only the level of oleic acid but also polyunsaturated fatty acids in intramuscular and subcutaneous fat tissue. Total saturated fatty acid contents in both fat tissues were decreased whereas total unsaturated fatty acid content was increased compared with those from control. Linoleic acid, linolenic acid and polyunsaturated fatty acid contents were significantly higher in Ca oleate than any other steers. Lipid metabolites in blood were increased in rumen protected oleic acid treatments. HDL content in blood was increased in Ca-oleate supplemented steers whereas LDL was decreased compared with control. The changes of fatty acid compositions in the rumen protected oleic acid supplemented steers suggest that the oleic acid and unsaturated fatty acid were protected from rumen biohydrogenation and can be deposited in the fat tissues.

Effects of Oleic Acid on the Autoxidation of Rice Bran Oil (미강유의 자동산화에 미치는 Oleic Acid의 첨가 효과)

  • 이성호;신영순
    • The Korean Journal of Food And Nutrition
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    • v.6 no.1
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    • pp.47-52
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    • 1993
  • In the present study, an attempt was made to investigate the effect of oleic acid on the autoxidation of the commercial rice bran oil. Rice bran oil samples with oleic acid at 0.1, 0.3 and 0.5% level were kept at 45 $\pm$ 0.3$^{\circ}C$ for 40 days. The rate of autoxidation of each samples was estimated regularly on the basis of the changes of peroxide value, acid value, anisidine value and the fatty acid composition. The per oxide, acid and anisidine values of the rice bran oil with the oleic acid increased as compared with that of the rice bran oil without the oleic acid during the autoxidation. The induction period of the rice bran oil without the oleic acid, control was 19.8 days, while those of the rice bran oil with oleic acid at 0.1, 0.3 and 0.5% levels were 18.3 days, 16.8 days, and 15.5 days, respectively. In conclusion, it seemed that oleic acid acted as weak prooxidant when added at 0.1, 0.3 and 0.5% levels to the commercial rice bran oil.

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The Effects of Surfactants on the Biosynthesis of Galactolipid and the Composition of Fatty Acids in Chloroplast Envelope rind Thylakoid Membrane of Chlorella ellipsoidea

  • Choe, Eun-A;Cheong, Gyeong-Suk;Lee, Cheong-Sam
    • Animal cells and systems
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    • v.2 no.3
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    • pp.341-349
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    • 1998
  • To analyze the effects of surfactants on the biosynthesis of galactolipid and the composition of fatty acids, the chloroplast envelope and thylakoid membrane were cultivated in medium treated with anionic surfactants, such as linear alkylbenzene sulfonate (0.002%, LAS), a-olefin sulfonate (O.01%, AOS), and sodium lauryl ether sulfate (0.08%, SLES), respectively. During the cultivation, the chloroplast envelope and thylakoid membrane were isolated from the cells collected at the early and middle phase of the culture and the contents of their fatty acid composition were compared with the control. When treated with surfactants, the contents of total lipid MDGD methylesters, and DGDG methylesters decreased significantly when compared with the control. It was also confirmed that more unsaturated fatty acids were involved in the biosynthesis of galactolipid. The fatty acids utilized in the biosynthesis of MGDG were in the chloroplast envelope and in the control, and linoleic acid in LAS, linolenic acid and oleic acid in AOS, and linolenic acid and oleic acid in SLES. The fatty acids in the biosynthesis of DGDG were linolenic acid and oleic acid in the control linolenic acid and stearic acid in LAS, oleic acid and linolenic acid in AOS, oleic acid and linolenic acid in SLES. In the thylakoid membrane, the major fatty acids in the biosynthesis of MGDG were linolenic acid and oleic acid in the control, oleic acid and linolenic acid in LAS, linolenic acid and linoleic acid in AOS, linolenic acid and palmitoleic acid in SLES. The fatty acids in the biosynthesis of DGDG were linolenic acid and oleic acid in the control, oleic acid and linolenic acid in LAS, linolenic acid and linoleic acid in AOS, palmitoleic acid and oleic acid in SLES.

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Removal Mechanisms of Oily Soils(I) - Rolling-up of Triolein and Oleic Acid - (지용성 오구의 세척기구(I) - 트리올레인과 올레산의 롤링업 -)

  • 이선영;박정희
    • Textile Science and Engineering
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    • v.34 no.1
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    • pp.40-48
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    • 1997
  • Rolling-up of triolein and oleic acid with the increase of temperature were investigated to study the detergency of oily soils by using SLS, DBS and NPPG-lOEO as surfactants. Interfacial tensions of triolein/aqueous surfactant solutions and those of oleic acid/aqueous surfactant solutions were measured. Contact angles of triolein and those of oleic acid on PET film and nylon 6 film were measured. Work of detergency of triolein and that of oleic acid were obtained from the interfacial tension and contact angle measurements. Also % removal of triolein and oleic acid was estimated by liquid scintillation counting and the results were as follows: 1. Interfacial tension of triolein/aqueous surfactant solution was the lowest for aqueous NPPG solution, but that of oleic acid/aqueous surfactant solution was lowest for aqueous SLS and DBS solution. Interfacial tension of triolein or oleic acid/water decreased, but that of triolein or oleic acid/aqueous surfactant solution increased as temperature increased. 2. Contact angle of triolein was the largest in aqueous NPPG solution, but that of oleic acid was the largest in aqueous SLS and DBS solution. They increased as temperature increased. 3. It was appeared that work of detergency of triolein was the smallest in aqueous NPPG solution, but that of oleic acid was the smallest in aqueous SLS and DBS solution. Work of detergency of triolein in all of the three aqueous surfactant solutions decreased as temperature increased. Work of detergency of oleic acid in aqueous SLS and DBS solution decreased as temperature increased. 4. Removal of triolein and oleic acid was appeared to be the highest in aqueous NPPG solution and it increased as temperature increased.

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Effects of Dietary Fatty Acid Composition on Level of Oleic Acid (ω9) in Brain Subcellular Fractions of Rats (식이 지방산이 흰쥐 뇌조직 Subcellular Fractions내 Oleic Acid(ω9) 조성에 미치는 영향)

  • Chung, Eon-Jung;Um, Young-Soak;Lee, Yang-Cha
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.10
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    • pp.1626-1633
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    • 2004
  • In recent, the roles of oleic acid, most abundant fatty acid in myelin, were investigated in relation to the brain functions. This study examined the effects of diets either with desirable ratios of $\omega$6/ $\omega$9 and P/M/S (mixed oil-fed group: MO) or with defficient in $\omega$3 series fatty acids (safflower oil-fed group: SO) on the oleic acid composition in RBC and brain synaptosomal, mitochondrial & microsomal phospholipids. The desirable fatty acid composition was computer-searched with different fats and oils to meet right ratios of both $\omega$6/ $\omega$3 and P/M/S. Diets were fed 3 weeks before conception and new-born pups were fed maternal milk from the same mothers and same diets until 9 wks of age. At 3 wks of age, the compositions of oleic acid in brain subcellular fractions and red blood cells were constantly remained whatever the composition of dietary fatty acids. But at 9 wks of age, the composition of oleic acid in synaptosome and mitochondria were significantly higher in MO group than SO group. The composition of oleic acid in milk was significantly higher in MO group than SO group, but in case of SO group, that of oleic acid was increased by 48%, in comparison with dietary fatty acid compositions. -9 desaturase index (18:0\longrightarrow8:1) of brain synaptosome was significantly higher in MO group than SO group at 3 and 9 weeks of ages, but that of brain microsome was higher in SO group than MO group at 9 wks of age. Taken together, the presences of oleic acid in the diet was important to maintain brain functions. The origins of oleic acid in brain may suggests two hypotheses; first, the central nervous system has priority for the uptake of oleic acid, and second the nervous system can synthesize all the oleic acid it needs, independently of its presence in the diet.

EMS-induced Mutagenesis for C18 Unsaturated Fatty Acids in Rapeseed (Brassica napus L.)

  • Lee, Yong-Hwa;Kim, Kwang-Soo;Jang, Young-Seok;Choi, In-Hu
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.2
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    • pp.128-133
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    • 2014
  • Rapeseed (Brassica napus L.) oil with high oleic acid content is of great interest for both food and non-food uses. The 'Tamla' variety, characterized by oleic acid content of approximately 69%, was treated with 1% ethyl methane sulfonate (EMS) to induce mutations in the fatty acid biosynthesis pathway. $M_1$ plants were selfed and subsequent generations ($M_2$, $M_3$, and $M_4$ mutants) were analyzed to identify mutants having increased levels of oleic acid. $M_2$ mutants showed oleic acid content ranging from 13.5% to 76.9% with some mutants (TR-458 and TR-544) having up to 74.7% and 76.9% oleic acid, which was an increase of nearly 5% and 7%, respectively, compared to untreated cv 'Tamla'. We selected two $M_3$ mutants with >75% oleic acid content. One mutant (TR-458-2) had increased oleic acid (75.9%) and decreased linoleic acid (12.5%) and linolenic acid (4.4%) contents. The other (TR-544-1) showed increased oleic acid content (75.7%) and decreased linoleic acid (13.5%) and linolenic acid (3.3%) contents. The accumulation or reduction of oleic acid content in the selected $M_4$ mutants was also accompanied by a simultaneous decrease or increase in linoleic and linolenic acid contents. The high-oleic lines could be utilized further in breeding programs for improvement of rapeseed oil quality.

Detection of Oleic Acid Biodegradation by Fungi

  • Han, Dong-Wook;Suh, Hwal;Lee, Dong-Hee;Park, Bong-Joo;Kosuke Takatori;Park, Jong-Chul
    • Journal of Microbiology and Biotechnology
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    • v.12 no.3
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    • pp.514-517
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    • 2002
  • To investigate oleic acid biodegradation, 47 fungal strains were tested with modified Czapek Dox broth media containing oleic acid, and their biodegradative activities were assayed by measuring the release of $[^14C]CO_2$ from the $^14C-$labeled oleic acid. After 72 h of cultivation, Aspergillus flavus, Aspergillus ochraceus, and Alternaria species metabolized approximately $25\%\;to\;35\%$ of the supplied oleic acid. The relationship between the fungal degradation of oleic acid and the fungal growth was also examined using 7 strains of Aspergillus niger. A. niger. YMC 0100 and YMC 0322 degraded about $26\%$ of the oleic acid after 72 h, while their germination ratios were more than $30\%$.

Studies on the Detergency of Oily Soils (Part II) (유성오염의 세척성에 관한 연구(제2보) -유화와 롤링업에 의한 액체유성오염의 세척성-)

  • 김영희;정두진
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.2
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    • pp.356-365
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    • 1995
  • study was made to investigate the emulsification and rolling-up between liquid oily soils and surfactant and its effect on the detergency. Samples used were triolein as a triglyceride, oleic acid as a free fatty acid and sodium dodecyl sUJfate(SDS) as a surfactant. The results were as follows: 1. The spontaneous emulsification occurred in the system of oleic acid alone and mixture of triolein and oleic acid contacted with 0.5% SDS solution, but it did not occurred in a case of triolein alone. 2. The stability of emulsification increased with the increase of SDS concentration. And the stability of emulsification and (-) t value increased in the order of triolein < mixture of triolein and oleic and< oleic acid. 3. The rolling-up mechanism of model oily soils easily occurred in the order of triolein< mixture of triolein and oleic acid< oleic acid, and facilitated with the increase of SDS concentration. On the other hand, the complex formation was already observed in the system of oleic and 0.5% SDS solution. 4. As compared with the detergency of triolein, the detergency of oleic acid was very high. And the detergency of mixed soil was improved with increasing ratio of oleic acid in the mixture.

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