• 임산에너지
• /
• 제7권1호
• /
• pp.28-36
• /
• 1987

To know the possibility of fuel substitution for Diesel engine with the seed oil of Evodia daniellii, which is one of the native oil seed trees in Korea. the refined seed oil mixed with light oil in the various rates was tested in the 8 PS Diesel engine: the output, the fuel consumption rate, the governor performance, the rpm stability in the total loading condition. the content of graphite in the burned gas, and the traction coefficients at the different gear stages were maintained The following results were discussed. 1. The output at the normal revolution (2200rpm)was increased as the percent seed oil increased. At the lower rpm (2000-1500rpm )there were no consistent difference in the outputs among fuels of the different percent seed oil 2. The rate of fuel consumption was inclosed as the percent seed oil increased in each loading condition. 3. The more percent sud oil was mixed in the fuel. the better governor performance appeared at both the instantaneous and stable speed. 4. The more percent seed oil was mixed In the fuel, the more stable rpm ratio was maintained 5. The graphite content In the burned gas was increased as the load increased, but there was no apparent difference in the content at each load among the 100$\%$ seed oil, the 100$\%$ light oil, and the mixtures in various rates. 6. In all fuel mixtures the maximam traction coefficent appeared at the third transmission gear stage. Generally in over all transmission gear stages the fuel mixtures of the seed oil:light oil ratio from 7:3 to 5:5 resulted greater traction force than the other fuels.

• Journal of Nutrition and Health
• /
• 제36권7호
• /
• pp.667-674
• /
• 2003

The study was performed to investigate the effects of isoflavone and/or grape seed oil supplementation on serum and liver lipid profiles and bone strength in ovariectomized female rats. Female Spraque-Dawley rats were assigned into 4 groups of ovariectomized (O), isoflavone (0.085 mg/100 g b.w/day) in ovariectomized rats, grape seed oil in ovariectomized rats and isoflavone and/or grape seed oil in ovariectomized rats. After 8 weeks, biochemical profiles of serum, liver and bone were analyzed. Total food intakes, body weight gains and FER (food efficiency ratio) were not statistically significantly different among groups. Total cholesterol, triglyceride and LDL-cholesterol levels in serum were decreased by fed of isoflavone and/or grape seed oils. However, crude lipid and total cholesterol contents in liver were not affect of isoflavone and/or grape seed oil. The hepatic glutathione contents were increased by isoflavone and/or grape seed oil fed. The hepatic glutathione-S-transferase activity in isoflavone and/or grape seed oil supplemented groups were higher than that O group. Bone (scapular and femur bone) dry weight, femur of max weight and bending strength were no significant difference among groups. Our finding suggest that isoflavone/grape seed oils might have potential role for serum lipid profiles improvement and bone strength in vivo.

• 한국식품영양과학회지
• /
• 제44권12호
• /
• pp.1813-1818
• /
• 2015

본 연구에서는 높은 불포화지방산 함유율로 말미암아 항산화 성분을 함유하고 있음에도 불구하고 산패에 대한 위험성을 내포하고 있는 포도씨유에 다량의 항산화 성분을 함유한 것으로 알려진 포도씨추출물을 첨가하여 포도씨추출물 함유 포도씨유의 90일 동안의 저장 중 산화 안정성을 측정하였고, 갈색화, 비타민 E, 지방산 조성 및 폴리페놀 함량 변화를 조사해 보았다. 포도씨추출물을 첨가한 포도씨유의 경우 무첨가 포도씨유보다 저장기간 동안 과산화물가, 산가 및 공액이중결합가가 모두 낮아 포도씨추출물이 포도씨유의 산화 안정성에 기여하는 것으로 나타났다. 저장 중 흡광도 증가량 역시 포도씨추출물 첨가 포도씨유가 무첨가 포도씨유에서보다 적게 나타났고, 비타민 E 이성체의 감소량 또한 무첨가 포도씨유에서보다 포도씨추출물 첨가 포도씨유에서 적게 나타났으며, 지방산 조성 변화 역시 무첨가 포도씨유에서보다 포도씨추출물 첨가 포도씨유에서 적게 나타났다. 한편 저장 중 폴리페놀 함량 감소량은 포도씨추출물 함유 포도씨유에서 가장 크게 나타났다. 따라서 포도씨추출물은 저장 중 포도씨유의 산화 안정성에 기여하는 것으로 확인되었으며, 다만 그 능력은 합성항산화제인 butylated hydroxytoluene보다는 낮은 것으로 조사되었다.

• Journal of Ginseng Research
• /
• 제37권4호
• /
• pp.468-474
• /
• 2013

Ginseng seed oil was prepared using compressed, solvent, and supercritical fluid extraction methods of ginseng seeds, and the extraction yield, color, phenolic compounds, fatty acid contents, and phytosterol contents of the ginseng seed oil were analyzed. Yields were different depending on the roasting pretreatment and extraction method. Among the extraction methods, the yield of ginseng seed oil from supercritical fluid extraction under the conditions of 500 bar and $65^{\circ}C$ was the highest, at 17.48%. Color was not different based on the extraction method, but the b-value increased as the roasting time for compression extraction was increased. The b-values of ginseng seed oil following supercritical fluid extraction were 3.54 to 15.6 and those following compression extraction after roasting treatment at $200^{\circ}C$ for 30 min, were 20.49, which was the highest value. The result of the phenolic compounds composition showed the presence of gentisic acid, vanillic acid, ferulic acid, and cinnamic acid in the ginseng seed oil. No differences were detected in phenolic acid levels in ginseng seed oil extracted by compression extraction or solvent extraction, but vanillic acid tended to decrease as extraction pressure and temperature were increased for seed oil extracted by a supercritical fluid extraction method. The fatty acid composition of ginseng seed oil was not different based on the extraction method, and unsaturated fatty acids were >90% of all fatty acids, among which, oleic acid was the highest at 80%. Phytosterol analysis showed that ${\beta}$-sitosterol and stigmasterol were detected. The phytosterol content of ginseng seed oil following supercritical fluid extraction was 100.4 to 135.5 mg/100 g, and the phytosterol content following compression extraction and solvent extraction was 71.8 to 80.9 mg/100 g.

• 대한화장품학회지
• /
• 제49권4호
• /
• pp.331-339
• /
• 2023

본 연구에서는 Helianthus annuus (Sunflower) seed oil의 in vitro 시험 및 인체적용시험을 통해 항염 효과와 피부 보습, 피지 분비, 피부 장벽기능 개선 및 피부 진정 등 피부 개선 효과를 확인하였다. In vitro 시험 결과, lipopolysaccharide로 염증 반응을 유도한 각질형성세포(cultured human epidermal keratinocytes)에 H. annuus (Sunflower) seed oil을 처리하였을 때 염증성 사이토카인인 IL-6, IL-8, TNF-α가 통계적으로 유의하게 감소하여 항염 효과가 있음을 확인하였다. 또한 H. annuus (Sunflower) seed oil을 함유한 시험제품을 제조하여 민감성 피부 대상으로 4 주간 인체적용시험한 결과, 피부 보습, 피지 분비, 피부 장벽이 개선되었으며, 피부 붉은기와 트러블이 개선되는 등 피부 개선 효과를 확인하였다. 본 연구 결과를 통해 민감성 피부를 타겟으로 한 화장품 원료로서 H. annuus (Sunflower) seed oil의 가능성을 확인하였다.

• 한국식품과학회지
• /
• 제26권2호
• /
• pp.178-183
• /
• 1994

들깨 종자 발아가 들기름의 산화안정성에 미치는 영향을 규명하기 위하여 햇들깨와 묵은들깨를 $28^{\circ}C$에서 $2{\sim}3$일간 발아시켜 각각의 들깨와 발아들깨로부터 들기름을 추출한 후 이들 4종류의 들기름의 화학적 조성의 변화를 검토하였다. 들기름의 종류에 따라 요오드가와 검화가에서는 커다란 차이가 나타나지 않았으나 산가의 경우 햇들깨와 묵은들깨 모두 발아들깨에서 추출한 들기름이 들깨에서 추출한 들기름보다 높았다. 중성지방질의 조성에서는 발아에 의해 triacylglycerol 함량은 감소하는 반면 유리 지방산과 diacylglycerol 함량은 증가하였다. 극성지방질중 phosphatidyl ethanolamine의 함량이 햇들깨와 묵은들깨 모두 발아에 의해 현저히 증가하였다. 들기름의 총 tocopherol 함량은 $439{\sim}560\;ppm$으로 햇들깨와 묵은들깨 모두 발아에 의해 그 함량이 증가하였으며, 특히 ${\gamma}-tocopherol$의 함량이 현저히 증가하였다. 각 들기름의 산화안정성 차이는 햇들깨에서 추출한 들기름이 묵은들깨에서 추출한 들기름보다 4배 이상 산화안정성이 높았으며 발아에 의해 묵은들깨의 경우는 산화안정성이 2배 정도 증가하였으나 햇들깨의 경우는 약간 증가하는 경향을 나타내었다.

• 한국응용과학기술학회지
• /
• 제25권2호
• /
• pp.196-204
• /
• 2008

Hemp seed oil and evening primrose oil were incorporated into the diets of laying hens for 5 weeks and the level of gamma fatty acid in the eggs that the treated hens laid was then evaluated. Hens were fed corn-soybean based diets that contained 5% tallow, 5% corn oil (CO), 5% hemp seed oil (HSO), or 5% evening primrose oil (EPO). The hemp seed oil and evening primrose oil influenced the amount of gamma linolenic acid found in the eggs through blood. The level of gamma linolenic acid in the plasma was significantly higher in hens that received the HSO and EPO diets than in those that received the tallow and CO diets. The HSO and EPO diets led to a 1.09% and 4.87% increase in egg gamma linolenic acids, respectively, when compared with eggs produced by hens treated with tallow and CO. Taken together, these data demonstrate that healthy eggs with increased gamma linolenic acids can be generated by minor diet modifications when hemp seed oil or evening primrose oil is included in the hen diet.

• Journal of Plant Biotechnology
• /
• 제39권4호
• /
• pp.242-252
• /
• 2012

Seed storage oils are essential resources for not only human and animal diets but also industrial applications. The primary goal of this study was to increase seed oil content through comparative analysis of two seed-specific promoters, AtFAE1 from Arabidopsis Fatty Acid Elongase 1 gene and BnNapin from Brassica napus seed storage protein gene. AtWRI1 and AtDGAT1 genes encoding an AP2-type transcription factor and a Diacylglycerol Acyltransferase 1 enzyme, respectively, were expressed under the control of AtFAE1 and BnNapin promoters in Arabidopsis. The total seed oil content in all transgenic plants was increased by 8-11% compared with wild-type seeds. The increased level of oil content in AtWRI1 and AtDGAT1 transgenic lines under the control of both promoters was similar, although the activity of the BnNapin promoter is much stronger than that of AtFAE1 promoter in the mature stage of developing seeds where storage oil biosynthesis occurs at a maximum rate. This result demonstrates that the AtFAE1 promoter as well as the BnNapin promoter can be used to increase the seed oil content in transgenic plants.

• 한국자원식물학회지
• /
• 제10권3호
• /
• pp.247-249
• /
• 1997

Seed protein and oil content is important trait in the soybean. Both seed protein and oil content in this plant species is inherited quantitatively. A 68-plant $F_2$ segregation population derived from a mating between Mercury and PI 467.468 was evaluated with random amplified polymorphic DNA (RAPD) markers to identify QTL related to seed protein and oil content. Marker OPB12 was found to be associated with differences in seed protein content. Four markers, OPA09b, OPM07b, OPC14, and OPN11b had highly significant effects on seed oil content. By interval mapping, the interval between marker OPK3c and OPQ1b on linkage group 13 contained a QTL that explained 25.7% variation for seed oil content.

• Journal of Nutrition and Health
• /
• 제9권4호
• /
• pp.19-27
• /
• 1976

Perilla (frutescens) seed oil, which is widely used as a source of vegetable oil in Korea, contains a strikingly large amount (58.4% of total fatty acids) of polyunsaturated linolenic acid (18 : 3) which is one of the essential fatty acids. Our hypothesis was that vitamin E contained in this oil would not be enough to prevent peroxidation of this polyunsaturated oil. A comparative study was carried out using rats and chicks devided into seven groups with various diet combinations emphasizing fat sources for the period of four weeks. The level of fat in each diet was 15% and animals were fed ad libitum. Various diet combinations were as follows; perilla seed oil and sesame seed oil with and without vitamin E supplementation, tallow as a saturated fat source and perilla seed hull group (10% at the expense of carbohydrate). The fat constituents of control group were consisted of 50% vegetable oil and 50% animal fat. A few important findings are as follows: 1. Rats fed perilla seed oil lost their hair focally around the neck and suffered from a bad skin lesion at the same place. In chicks, yellow pigmentation both of feather and of skin was clearly observed only in groups fed perilla seed oil with or without vitamin E supplementation. The basis of biochemical mechanisms of this phenomena remains as an important research interest. 2. The mean value for hematocrit was significantly lower for the chicks fed perilla seed oil than for those fed control diet. This result seems to be attributable to the effect on the red cell membrane known as peroxidation-hemolysis of vitamin E deficiency. 3. The serum cholesterol level was higher for the rats fed perilla seed oil than for those fed control diet, whereas in chicks the group fed perilla seed oil showed lower value than the control group indicating that different animal species could vary in their responses to the same diet. 4. In pathological examinations, the sign of hepatic fibrosis was seen in the perilla seed hull group and it was noticeable that the level of hepatic RNA was significantly increased in the rat recovering from vitamin E deficiency. It is hoped that more detailed studies on perilla seed oil and hulls will soon be carried out in many aspects especially i) at various levels of fat in the diet, ii) in relation to dietary selenium level and iii) to find an optimum level of dietary essential fatty acids in terms of P/S ratio using various animal species. In the mean time, the public should be informed to preserve this particular oil with care to minimize fatty acid oxidation and should be discouraged from overconsuming this oil. This study was supported by UB (United Board) Research Grant (Graduate School, Yonsei University, Seoul, Korea)