• Title/Summary/Keyword: 인지질

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Changes of Flavor Components and Lipid Contents in Tomato Fruits during Storage : Changes of Lipid Condents and Its Correlation with Flavor Components (감압저장중 Tomato 과실의 향기 및 지질성분의 변화 -저장중 지질성분의 변화와 향기성분과의 상관관계-)

  • Sohn, Tae-Hwa;Cheon, Seong-Ho;Choi, Sang-Won;Moon, Kwang-Deog;Chung, Shin-Kyo
    • Korean Journal of Food Science and Technology
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    • v.20 no.1
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    • pp.63-71
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    • 1988
  • Total lipid contents of tomato fruits were 97.6mg% and composed of neutral lipid(45.1mg%), phospholipid(31.2mg%) and glycolipid(12.4mg%). The contents of neutral lipid were slowly increased from the period of climacteric rise, but those of glycolipid and phospholipid were slowly decreased at the end of storage period. Major fatty acids in all lipids were identified to be palmitic, stearic, linoleic and oleic acids. The contents of linoleic acid in all lipids at $25^{\circ}C$ and those in neutrallipid at $15^{\circ}C$ were decreased, while those in phospholipid were slightly increased during storage. The contents of palmitic acid in neutral lipid were decreased, whereas those in glycolipid and phospholipid have a tendency to increase during storage. As for normal atmospheric pressure-normal temperature(NAP-N) condition, volatiles from homogenated tomato fruits were positively correlated with palmitic acid of neutral lipid, whereas negatively correlated with linoleic acid. As for subatmospheric pressure-low temperature(SAP-L) condition, the relationship between volatiles and fatty acids of neutral lipid was similar to NAP-N condition. Volatiles were positively correlated with linoleic acid of glycolipid and stearic acid of phosholipid, whereas negatively correlated with oleic acid of glycolipid and palmitic acid of phospholipid, respectively.

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Effect of Sensory Activity-Based Cognitive Rehabilitation Group Program on Cognitive Function, Depression and Quality of Life of Dementia Patients Living in a Facility (감각활동기반 인지재활 그룹 프로그램이 시설거주 치매노인의 인지기능과 우울 및 삶의 질에 미치는 효과)

  • Lee, Hey-Sig;Yang, Min-Ah;Kim, Jung-Ran
    • Therapeutic Science for Rehabilitation
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    • v.12 no.3
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    • pp.79-88
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    • 2023
  • Objective : This study was to apply a cognitive rehabilitation group program based on sensory activity in patients with dementia living in a facility and to check its effectiveness on cognitive function, depression, and quality of life (QOL). Methods : Sensory-based cognitive rehabilitation group programs (20 sessions) were conducted for eight elderly with dementia over the age of 65 living in a nursing facility located in H-gun, Gangwon-do. The participants' cognitive function, depression level, and QOL were evaluated before and after the program. Results : The mean of Mini-Mental State Examination-Dementia Screening increased; however, there was no statistically significant difference. In contrast, the mean post-test score of the Subjective Memory Complaints Questionnaire decreased, and there was a statistically significant difference (p < .05). The mean post-evaluation score of Short Geriatric Depression Scale measured to confirm the decrease in depression compared to the pre-evaluation score, but there was no statistically significant difference. Finally, the mean post-evaluation score of the World Health Organization QOL assessment instrument-Brief confirmed the change in the QOL, and there was a statistically significant difference (p < .001). Conclusion : This study will provide the basis for suggesting the usefulness of developing a sensory activity-based cognitive rehabilitation group program for dementia patients living in facilities.

Effect of Tannic Acid and ${\alpha}$-Tocopherol as an Antioxidant on Methyl Linoleate Autoxidation and Inhibitor of Lipoxygenase in Phospholipid (Methyl linoleate 의 자동산화와 인지질에 작용하는 lipoxygenase의 억제제로서 탄닌산과 알파토코페롤의 영향)

  • Nam, Hyun-Keun
    • Journal of the Korean Applied Science and Technology
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    • v.9 no.2
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    • pp.175-179
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    • 1992
  • In order to investigate the effect of tannic acid and ${\alpha}$-tocopherol on methyl linoleate autoxidation and on inhibition activity of lipoxygenase in phospholipid, the rate of formation of methyl linoleate hydroperoxide was measured by HPLC. The reaction mixture contained methyl linoleate 70mM, radical initiator AMVN 0.7mM, tannic acid and ${\alpha}$-tocopherol 0.7mM, each, in a mixture of hexane/isopropanol(1 : 1, v/v). Under this reaction condition, tannic acid was good enough antioxidant. The tannic acid and ${\alpha}$-tocopherol for the inhibition activivity of lipoxygenase were measured at the reaction conditions: phospholipid $1{\mu}M$. tannic acid and ${\alpha}$-tocopherol were reacted as an inhibitor of lipoxygenase in phospholipid, especialy in phosphatidy lcholine.

The Effects of Antibiotics on the Biosynthesis of the Phospholipid and the Fatty Acid Composition of Chlorella ellipsoidea Mitochondria (Chlorella ellipsoidea mitochondria의 인지질 생합성과 지방산 대사에 미치는 항생제의 효과)

  • Yoon, Seung-Hee;Seo, Kwang-Seok;Lee, Chong-Sam
    • 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.

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Nano-emulsion Formed with Phospholipid-Nonionic Surfactant Mixtures and its Stability (인지질-비이온계면활성제 혼합물로 형성된 나노에멀젼과 이의 안정성)

  • Cho, Wan Goo;Kim, Eun Hee
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.40 no.3
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    • pp.221-226
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    • 2014
  • IIn this study, O/W type nano-emulsions were prepared by phospholipid-nonionic surfactant mixtures and octyldodecylmyristate using the phase transition low-energy emulsification method. The nano-emulsions were formed only in the very narrow area of the concentration of mixed surfactant and oil molar ratio of around 1 : 1. The particle size of the emulsions was decreased as adding the aqueous phase into the emulsions after phase inversion point unlike the emulsions formed only with nonionic surfactant. Nano-emulsion was stable at room temperature for more than a month. Thus, the nano-emulsions containing phospholipids can be widely used as a cosmetic formulations.

Comparison of Autoxidative Stability and Minor Compounds in Oils Extracted from Bran and Germ of Keumkang Wheat and Dark Northern Spring Wheat (금강밀과 dark northern spring밀의 기울과 배아에서 추출한 기름의 자동산화 안정성 및 미량성분 비교)

  • Choi, Hyun-Ki;Choe, Eun-Ok
    • Korean Journal of Food Science and Technology
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    • v.41 no.6
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    • pp.628-635
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    • 2009
  • Autoxidative stability of wheat bran and germ oil extracted from Keumkang wheat (WBG-K) or Dark Northern Spring wheat (WBG-DNS) at $50^{\circ}C$ in the dark was compared by peroxide values (POV) and fatty acid composition by gas chromatography. Changes of minor compounds were monitored by HPLC. WBG-K showed significantly higher linoleic but lower oleic acid content than WBG-DNS. WBG-DNS contained more phospholipids but less tocopherols and carotenoids than WBG-K. POV of oils was increased during storage, with no significant difference in the oxidation rates between two oils. Tocopherols, carotenoids, and phospholipids in both oils were degraded during the autoxidation. Total phospholipids content showed the highest correlation with the degree of oxidation in WBG oils. The results clearly showed that both fatty acid composition and contents of tocopherols, carotenoids, and phospholipids co-affected the autoxidation of WBG oil.

Physiological Activity of $\omega3$ Polyunsaturated Fatty Acids in Dark Fleshed Fishes I. The Effects on Protein and Phospholipid Contents, and Cholesterol Levels in Rats ($\omega3$ 고도불포화지방산의 생리활성에 관한 연구 I 단백질, 인지질 및 콜레스테롤 함량에 대한 연구)

  • CHOI Jin-Ho;Byun Dae-Seok
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.22 no.2
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    • pp.102-108
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    • 1989
  • The effects of n 3 polyunsaturated fatty acid (PUFA) on protein and phospholipid con-tents, and cholesterol level were studied in rats fed with diets of different fat composition. Body weights of fish oil groups were decreased to $11.1\%\~14.4\%$ compared with lard group (control), and also $16.4\%\~23.3\%$ compared with corn oil group, respectively. Protein contents of $\omega3$ PUFA and sardine oil groups in liver were increased to $6.78\%\~8.51\%$ compared with control group, but were no significant difference in brain and serum. $\omega3$ PUFA and sardine oil slightly repressed the phospholipid in microsome of liver. Moreover they effectively reduced the serum cholesterol levels compared with control group.

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The Effects of Reminiscence Therapy Using Mind Map to Improve Cognitive Function, Depression Index, Quality of Life for Elderly Women Suspected Of Dementia. (마인드맵을 활용한 회상치료가 여성 치매 의심 노인의 인지기능, 우울 지수 및 삶의 질에 미치는 영향)

  • Jang, Woo-hyuk;Son, Hyo-seong;Seo, Ye-ji;Youn, Su-jeong;Kim, Hyun-ji
    • Journal of Society of Occupational Therapy for the Aged and Dementia
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    • v.12 no.2
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    • pp.97-106
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    • 2018
  • Objective : The purpose of this study was to investigate the effects of reminiscence therapy using mind map to improve cognitive function, depression index, quality of life for old woman with dementia. Method : The study were 14 patients who were diagnosed with a woman suspected of dementia. They were randomly assigned to Study group(N=7) and control group(N=7). All patients received only to Study groups. reminiscence therapy using mind map was composed to 10 sessions, 40 minutes per sessions, 2 times a week, for 5 weeks. For result analysis, descriptive statistic, Wilcoxon signed rank test, and Mann-Whitney U test were used. The evaluation tools were Mini-Mental State Examination Korean Version (MMSE-K), Korean Version of Beck Depression Inventory (K-BDI), Korean Version of the World Health Organization Quality of Life Scale Abbreviated Version (WHOQOL-BREF). Result : There was a significant difference in cognitive function, depression index, and quality of life in the within group after intervention, and there was a significant difference in cognitive function in the between group comparison. Conclusion : According to the results of study, an easing effect was confirmed regarding reminiscence therapy using mind map for an old woman with dementia. using reminiscence therapy using mind map when applied to the improvement of cognitive function, depression index, quality of life.

Facilitation of tolaasin-induced hemolysis by phospholipids composed of medium-chain fatty acids (중간크기 탄소사슬의 지방산으로 이루어진 인지질에 의한 tolaasin의 용혈활성 촉진)

  • Yun, Yeong-Bae;Kim, Min-Hee;Kim, Young-Kee
    • Journal of Applied Biological Chemistry
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    • v.59 no.3
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    • pp.221-225
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    • 2016
  • Tolaasin is a pore-forming peptide toxin produced by Pseudomonas tolaasii and causes a brown blotch disease by disrupting membrane structures of cultivated mushrooms. The mechanism and characteristics of tolaasin pore formation are not known in detail; however, tolaasin pores have been demonstrated in the artificial lipid bilayer. Since the tolaasin pore appeared less frequently and unstable in lipid bilayer, a mismatch between the length of tolaasin pore and the thickness of lipid membrane had been suggested. Therefore, tolaasin-induced hemolyses were measured by the additions of phospholipids composed of various fatty acids with different carbon numbers. When phosphatidylethanolamines made with two decanoic acids (C10:0, 1,2-didecanoyl-sn-glycero-3-phosphoethanolamine; DDPE), myristic acids (C14:0, 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine), and stearic acids (C18:0, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine) were added to the buffer containing RBCs and tolaasin peptides, DDPE facilitated the tolaasin-induced hemolysis while the other two phospholipids showed no effects. At various concentrations of DDPE, the tolaasin-induced hemolysis was stimulated as a dose-dependent manner. The phospholipids composed of mediumchain fatty acids stabilize the tolaasin pore probably by binding between the pore structure and membrane phospholipids and making the membrane thickness thinner around the pore. These results showed that tolaasin molecules make more stable pores in the membrane made with phospholipids composed of medium length fatty acids, suggesting that the length of tolaasin pore is a little shorter than the thickness of RBC membrane.

Subjective Quality of Life According to the Recreation Specialization and Serious Leisure (레크리에이션 전문화와 진지한 여가에 따른 주관적 삶의 질)

  • Woo, Hyo-Dong;Hwang, Sun-Hwan
    • Proceedings of the Korea Contents Association Conference
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    • 2014.11a
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    • pp.159-160
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    • 2014
  • 본 연구는 레크리에이션 전문화와 진지한 여가의 하위요인 특성에 따라 여가활동 참가자들을 다섯 개의 집단으로 군집화하고, 집단 간 비교분석을 통해 주관적 삶의 질 인지수준에 차이가 있는가를 검증했다. 연구결과는 다음과 같다. 레크리에이션 전문화와 진지한 여가의 하위 요인 특성과 주관적 삶의 질 인지 수준은 차이가 있는 것으로 나타났다.

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