• Title, Summary, Keyword: lipid composition

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Effect of Wild Grape Juice on Lipid Metabolism and Antioxidaive Activity in Rat Fed High Oxidized Lipid (산화된 지방식이를 급여한 흰쥐에서의 머루즙 투여가 지질대사와 항산화에 미치는 영향)

  • Won, Hyang-Rye
    • The Korean Journal of Community Living Science
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    • v.20 no.2
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    • pp.223-230
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    • 2009
  • This study is to find out the antioxidative effect and serum and liver lipid composition of wild grape juice in vivo. Forty 6-week-old white Sprague Dawley rats were divided into 4 groups such as normal lipid group, normal lipid group with wild grape juice, oxidized lipid (basic diet plus 10% of oxidative lipid) group and oxidized lipid group with wild grape juice, and 2ml juice was provided everyday. After 4 weeks of feeding with experimental diet each groups were examined for the antioxidant enzyme activity in blood and liver microsome and their serum and liver lipid composition. Glutanthione peroxidase activity in blood was significantly higher in oxidized lipid group with wild grape juice than in oxidized lipid group. Glutanthione peroxidase activity showed no difference depending on wild grape juice supplementation. Glutanthione peroxidase activity in liver was significantly higher in the groups with wild grape juice than in the groups supplemented only with oxidized lipid. Glutanthione reductase activity showed no difference depending on the supplementation of wild grape juice. Serum triglyceride level in the group supplemented with oxidized lipid diet and wild grape juice showed similar value to the normal lipid group and the normal lipid group with wild grape juiceoxidized fa6. Liver total lipid in the group supplemented with oxidized lipid and wild grape juice showed similar value to the normal lipid group and the group supplemented with normal lipid and wild grape juice. And it was lower than that of oxidative lipid group without juice. The liver triglyceride level in the group supplemented with normal lipid and wild grape juice was lower than that in the oxidative lipid group, but it was as low as in the group supplemented only with normal lipid.

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Changes of Neutral Lipids in Developing Sesame(Sesamum indicium L.)Seeds (참깨 종자의 발육단계별 중성지질의 변화)

  • 김현경;정대수;김도훈
    • Journal of Life Science
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    • v.8 no.3
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    • pp.305-311
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    • 1998
  • These studies were undertaken to investigate changes of neutral lipid content and fatty acid composition were determined. Also accumulation process of monoglyceride, diglyceride and triglyceride content, and fatty acid composition were investigated during the development. The results were summarized as follows ; Changes of lipid during development sesame seeds, glycolipid contents which showed the highest in the early ripening stage and after that rapidly decreased, and phospholipid contents showed a similar pattern as glycolipid occurred. In contrast, the content of neutral lipid was rapidly increased by 29.21% 10 days after flowering(DAF), and showed the highest value by 91.84% at 40th day after flower. The neutral lipid, triglyceride content was rapidly increased as the seeds developed, and consisted of over 60% of the neutral lipid since 30 DAF. In the changes of neutral lipid, phospholipid and glycolipid, stearic acid and palmitic acid decreased during the seed ripening. However, oleic acid and linoleic acid increased during the same periods. Linolenic acid, which showed relatively higher value in the early ripening stage, but rapidly decreased as much as 1% at the later ripening stage.

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Effect of Nutrient Limitation on Lipid Content and Fatty Acid Composition of Mutant Chlamydomonas reinhardtii (돌연변이 Chlamydomonas reinhardtii의 영양분 제한에 따른 지질 생산 및 지방산 조성 변화 연구)

  • Baek, Jaewon;Choi, Jong-il
    • KSBB Journal
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    • v.30 no.2
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    • pp.91-95
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    • 2015
  • Production of biodiesel from microalgae is dependent on the microalgal lipid content and free fatty acid composition. Both lipid and free fatty acid are regulated by nutrient sources. In this study, newly developed mutant Chlamydomonas reinhardtii with higher lipid content was investigated for the effect of nutrient limitation. Nitrogen $NO_3{^{-}}$ and phosphate $PO_4{^{3-}}$ were limited for nutrient starvation during the cultivation. Under nutrient starvation, total lipid content level was increased to 27~33% and C16:0 fatty acid content constituted over 31~43% of total fatty acid. Interestingly, we also found that the expression of fatty acid desaturase (FAD7) was decreased when nutrients were starved.

Effects of cheungho aqua-acupunctureat gansoo$(BL_{18})$ and illweul$(GB_{14})$ on plasma lipid composition in rat fed high fat diet (간유(肝兪) 및 일월(日月) 청호약침(靑蒿藥鍼)이 고지방(高脂肪) 급여(給與) 흰쥐의 혈청(血淸) 지질구성(脂質構成)에 미치는 영향(影響))

  • Lee Joon-Moo
    • Korean Journal of Acupuncture
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    • v.20 no.3
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    • pp.91-99
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    • 2003
  • Effects of cheungho aqua-acupuncture at gansoo$(BL_{18})$ and illweul$(GB_{14})$ on plasma lipid composition were investigated in rat fed high fat diet. Body weight gain showed a tendency to decrease in aqua-acupuncture groups and in aqua-acupuncture groups, gansoo and illweul join aqua-acupuncture group showed a lower values than other aqua-acupuncture groups. Concentrations of plasma triglyceride, free fatty acids, lipoprotein and glucose showed a tendency to decreasea in the aqua-acupuncture groups. However in aqua-acupuncture groups, these values showed no significantly different. In plasma lipid composition, total cholesterol and LDL- cholesterol showed a tendency to decrease in aqua-acupuncture groups, however the values of LDL-cholesterol showed no significantly different in the aqua-acupuncture groups. HDL-cholesterol concentration showed a tendency to increase in aqua-acupuncture groups and in aqua-acupuncture groups, gansoo aqua-acupuncture group showed a high value.

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Effect of Dietary n6 Gamma-linolenic Acid and n3 Alpha-linolenic Acid on Plasma Lipid Composition and Platelet Aggregation in Human Subjects (사람에서 식이의 n6 Gamma-Linolenic Acid와 n3 Alpha-Linolenic Acid가 혈장 지질조성과 혈소판 응집반응에 미치는 영향)

  • 박혜선
    • Journal of Nutrition and Health
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    • v.23 no.7
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    • pp.477-491
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    • 1990
  • To observe the effect of dietary n6 linoleic acid, n6 gamma-linolenic acid and n3 alphalinolenic acid aon plasma lipid composition and platelet aggregation, twenty college women were divided into 4 groups and treated for 2 weeks with experimental diets supplying fat at 23% cal which were different only in fatty acid composition. Dietary fat was corn oil(CO) as a source of n6 linoleic acid(LA), perilla oil(PO) for n3 alpha-linolenic acid(ALA) and evenign primrose oil(EPO) for n6 gamma-linolenic acid(GLA). Plasma cholesterol level was slightly decreased by PL(13.5g) but significantly increased by equal amount of CO. However, there was similar hypocholeaterolemic effect when double amount of CO(27.0g), was supplemented. Therefore, total fat unsaturation may be more important factor for plasma cholesterol-lowering effect than the structure of fatty acid itself. Plasma cholesterol level was not lowered by supplement of GLA in CO diet. There was similar trend in hypotriglyceridemic effect by PO and CO as in plasma cholesterol. Plasma TG level was rather increased but not significantly by GLA supplement to CO diet. Overall, plasma lipid-lowering effect was greater by ALA than LA and GLA effect was not greater than by LA. GLA supplement did not significantly improve lipid compositions to prevent against CHD. There was no significant change both in fatty acid composition in platelet and ADP-induced platelet aggregation by GLA supplement to corn oil diet and by ALA in PO diet in young women.

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Chemical Composition of Lutus Seed(Nelumbo nucifera Gaertner) and Their Lipid and Protein Composition (연밥의 유지와 단백질의 구성에 관한 연구)

  • Shin, Dong-Hwa;Kim, In-Won;Kwon, Kyoung-Soohn;Kim, Myoung-Sook;Kim, Mi-Ra;Choi, Ung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.6
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    • pp.1187-1190
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    • 1999
  • Lotus seed(Nelumbo nucifera Gaertner), known as traditional medicine as an antifebrile, antipsychotic, and cantihypertensive agent, was analyzed the chemical composition of lipid and protein. The seed com posed of 12.2% moisture, 2.3% crude lipid, 19.5% crude protein, 61.3% carbohydrate, 2.1% crude fibre, and 4.1% ash. The lipid showed iodine value of 97.9 that is lower than that of soybean oil and sesame oil, and similar to peanut oil and cotton seed oil. The fatty acid composition of the oil were the highest in content of linoleic acid which occupied 58.3% and saturated vs unsaturated fatty acid was 20.9:79.1. Especially behenic acid content, 6.9%, was higher than other plant oils. Sixteen amino acids were detected in the protein from the seed and glutamic acid content was the highest as 4.5% in dehulled kernel. The portion of essential amino acid was 31.1%.

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Optimization for Scenedesmus obliquus Cultivation: the Effects of Temperature, Light Intensity and pH on Growth and Biochemical Composition

  • Zhang, Yonggang;Ren, Li;Chu, Huaqiang;Zhou, Xuefei;Yao, Tianming;Zhang, Yalei
    • Microbiology and Biotechnology Letters
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    • v.47 no.4
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    • pp.614-620
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    • 2019
  • Microalgae have been explored as potential host species for biofuel production. Environmental factors affect algal growth and cellular composition. The effects of several key environmental factors, such as temperature, light, and pH of the medium on the growth and biochemical composition of Scenedesmus obliquus were investigated in this study. The highest growth rate of microalgae was observed at an optimal temperature of 25℃, 150 μmol/(m2·s) light intensity, and pH 10.0. The biochemical composition analysis revealed that the carbohydrate content decreased at lower (20℃) or higher temperature (35℃), whereas the protein and lipid contents increase at these temperatures. The fluctuation of light intensity significantly affected the contents of protein, carbohydrate, and lipid. The protein levels varied greatly when the pH of the medium was below 7.0. The carbohydrate and lipid contents significantly increased at pH above 7.0.

Changes in the Total Lipid, Neutral Lipid, Phospholipid and Fatty Acid Composition of Phospholipid Fractions during Pastirma Processing, a Dry-Cured Meat Product

  • Aksu, Muhammet Irfan;Dogan, Mehmet;Sirkecioglu, Ahmet Necdet
    • Food Science of Animal Resources
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    • v.37 no.1
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    • pp.18-28
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    • 2017
  • Pastirma is a dry-cured meat product, produced from whole beef or water buffalo muscles. This study was carried out to investigate the effect of production stages (raw meat, after curing, after $2^{nd}$ drying and pastirma) on the total lipid, neutral lipid, phospholipid and fatty acid composition of phospholipid fraction of pastirma produced from beef M. Longissimus dorsi muscles. The pH and colour ($L^*$, $a^*$ and $b^*$) analyses were also performed in raw meat and pastirma. It was found that pastirma production stages had significant effects (p<0.01) on the total amounts of lipid, neutral lipid and phospholipid, and the highest amounts of lipid, neutral lipid and phospholipid were detected in pastirma. In pastirma, neutral lipid ratio was determined as $79.33{\pm}2.06%$ and phospholipid ratio as $20.67{\pm}2.06%$. Phospholipids was proportionately lower in pastirma than raw meat. Pastirma production stages affected pentadecanoic acid (15:1) (p<0.01), linoleic acid (18:2n-6) (p<0.05), ${\gamma}-linoleic$ acid (18:3n-6) (p<0.05), erucic acid (22:1n-9) (p<0.05), docosapentaenoic acid (22:5n-6) (p<0.05), total unsaturated fatty acid (${\Sigma}USFA$) (p<0.05) and total saturated fatty acid (${\Sigma}SFA$) (p<0.05) ratios of phospholipid fraction and also the moisture content (p<0.01). Pastirma process also affected pH and colour ($L^*$, $a^*$ and $b^*$) values (p<0.01), and these values were higher in pastirma than raw meat.

Influence of Dietary Lipid Level and Feeding Frequency on the Growth and Body Composition of Juvenile Fancy Carp Cyprinus carpio var. koi (사료의 지질함량과 공급횟수가 비단잉어(Cyprinus carpio var. koi) 치어의 성장 및 체조성에 미치는 영향)

  • Kim, Yi-Oh;Lee, Sang-Min
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.50 no.6
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    • pp.745-749
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    • 2017
  • We investigated the effects of different dietary lipid levels (7% or 14%) and feeding frequency (1-4 meals per day) on the growth performance and body composition of juvenile fancy carp Cyprinus carpio var. koi. Three replicate groups of fish (initial mean weight, 11.7 g) were fed to visual satiety with sinking dry pellet diets for 8 weeks. Neither feeding frequency nor lipid level affected fish survival. Weight gain was affected by feeding frequency but not dietary lipid level. Weight gain significantly increased with increased feeding frequency. Feed efficiency and protein efficiency ratio were affected by feeding frequency, but not dietary lipid level. Daily feed intake was affected by feeding frequency and dietary lipid level. Whole body moisture, crude lipid and ash contents were affected by feeding frequency, but not dietary lipid level. Based on these results, we conclude that the appropriate feeding frequency for the optimum growth of fancy carp fingerlings is four meals per day using sinking dry pellet.

Effects of Fish Oil Supplementation to Korean Lactating Women -III. The Effects of Fatty Acid Composition, Plasma Lipid Concentration and Fatty Acid Composition of Plasma Phopspholipids and Erythrocyte of Infants- (한국인 수유부에 어유의 보충 급여 효과에 관한 연구 -III. 영아의 지방산 섭취, 혈장 지질 농도 및 혈장과 적혈구 인지질의 지방산 조성에 미친 영향-)

  • 임현숙
    • Journal of Nutrition and Health
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    • v.29 no.2
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    • pp.192-198
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    • 1996
  • This experiment was conducted to examine the effects of fish oil supplementation with low does on the lipid concentration and fatty acid composition of plasma and the fatty acid composition of plasma phospholipid and erythrocyte of infants. Among 18 breast-fed infants, 6 were in control group and 12 were in fish oil groups. The subjects in fish oil groups were nursed by their mothers who supplemented with fish oil 1.96g/d or 3.92g/d, respectively for 2 weeks from 10 to 12 weeks postpartum. The nursing mothers consumed their usual diets at home. Blood samples were collected at the final day of experiment. There were no significant changes in daily intakes of total lipid, triglyceride, free fatty acid, phospholipid and cholesterol of infants by fish oil supplementation. However, the content of EPA (eicosapentaenoic acid)increased and that of ARA (arachidonic acid) decreaed significantly in plasma PC(phophatidylchline). And also, there were tendencies to increase triglyceride concentration and to decrease cholesterol and phopholipid concentrations of plasma. As the above results, atherogenic index (AI) showed a tendency to decrease, but not significant. DHA (docosahexaenoic acid) and EPA contents in plasma PC and PE (phosphatidylethanolamin) as well as those of erythrocyte tended to increase. In these results, we concluded that fish oil supplementation with low dose to lactating women does not obviously affect of the plasma lipid concentrations and fatty acid composition of plasma PC and PE as well as erythrocyte. However the increase of EPA content of plasma PC and the tendency to increase DHA and EPA contents of plasma as well as erythrocyte membrane indicate that there may be some beneficial effect on infant lipid metabolism of fish oil intake of nutsing mother were increased.

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