• Title/Summary/Keyword: natural oil

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Use of Nuclear Magnetic Resonance Spectroscopy in Analysis of Fennel Essential Oil

  • AbouZid, Sameh
    • Natural Product Sciences
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    • v.22 no.1
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    • pp.30-34
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    • 2016
  • A simple and rapid method based on proton nuclear magnetic resonance spectroscopy was developed for determination of trans-anethole content in fennel essential oil. Spectra of pure trans-anethole, of the pure essential oil of fennel, and of the pure oil of fennel with thymol internal standard were recorded. The signal of $H-1^/$ was used for quantification of trans-anethole. This proton signal is well separated in the proton magnetic resonance spectrum of the compound. No reference compound is needed and cheap internal standard was used. The results obtained from spectroscopic analysis were compared with those obtained by gas chromatography. Additionally, the developed method was used for determination of the type of vegetable oil used as a carrier in commercial products, which cannot be quantified as such by gas chromatography. This study demonstrates the application of proton nuclear magnetic resonance spectroscopy as a quality control method for estimation of essential oil components.

Effects of fungal (Lentinussajor-caju) treated oil palm frond on performance and carcass characteristics in finishing goats

  • Chanjula, Pin;Petcharat, Vasun;Cherdthong, Anusorn
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.6
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    • pp.811-818
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    • 2017
  • Objective: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. Methods: Eighteen growing crossbred male goats (Thai Native${\times}$Anglo Nubian) with $18.7{\pm}2.0kg$ of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design. Three diets containing 30% of oil palm fronds (OPF) either untreated (UOPF) or treated with Lentinussajor-caju (FTOPF) with or without urea (FTOPFU) were used as roughage sources in total mixed rations (TMRs). The diets were offered ad libitum and weight gain was determined. At the end of the experimental period, the harvest data and carcass characteristics of the goats were recorded, and muscular longissimus dorsi composition was determined. Results: No significant effect of fungal treated (FT) inclusion was observed in any of the feed intake, growth performance, and carcass characteristics. Likewise, no apparent effects on carcass composition and muscle chemical composition were detected in this study, except for hind leg and chump were affected (p<0.05) by FT inclusion. Conclusion: In conclusion, feeding of fungal (Lentinussajor-caju) treated oil palm frond in TMR diet did not affect performance and carcass characteristics in finishing goats.

The Anti-inflammatory Effects of Malva verticillata L. Oil Induced by Lipopolysaccharide with RAW 264.7 cells (Lipopolysaccharide로 유도된 RAW 264.7 cells에서 동규자 오일의 항염증 효과)

  • Oh, Seong-Hwa;Choi, Soo-Yeon;Lee, Sang-Hwa;Kim, Dong-Seok;Park, Sung-Min
    • Korean Journal of Pharmacognosy
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    • v.45 no.1
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    • pp.23-27
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    • 2014
  • Atopic dermatitis (AD) were caused by localized hypersensitivity reaction to an allergen. Therefore, to reduce inflammatory response of AD had been developed that natural extracts and oils with anti-inflammatory activities. This study were investigated that anti-inflammatory effects of Malva verticillata L. oil induced by LPS with RAW 264.7 cells. We measured to production of NO and expression of COX-2, iNOS, TNF-${\alpha}$ by RT-PCR. The Malva verticillata L. oil had decreased the production of NO (p<0.05) and the mRNA level of iNOS in concentration dose dependent manner. In conclusion, this study have shown here may be of help to understand the action mechanism of the anti-inflammatory and we hope that Malva verticillata L. oil used in skin diseases such as AD.

Inhibitory Effects of the Essential Oil from Nardostachys intamansi on Central Nervous System after Inhalation and Oral Administration (감송향 정유성분의 흡입 및 경구투여시의 중추신켱 억제효과)

  • Koo Byung-Soo;Kim Dae-kun;Choi Jung-Hyun;Lee Dong-Ung
    • Journal of Life Science
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    • v.16 no.1
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    • pp.156-161
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    • 2006
  • The essential oil of Nardostachys jatamansi (Valerianaceae), which has been used for a long time in aroma therapy, was investigated after inhalation or oral administration for its analgesic effect, anticonvulsant action, hypnotic effect and in vitro inhibitory activity on monoamine oxidase. This fragrance oil showed a significant analgesic effect in the phenylquinone-induced .writhing test, suppressed the convulsion induced by pentylenetetrazole and lengthened the pentobarbital-induced sleeping time in a time-dependent manner after fragrance inhalation or dose-independently by oral administration. Its inhibitory activity on monoamine oxidase was remarkable, showing $49.4\%$ inhibition at a concentration of 5.0 mg/ml. Six new terpenes with seven known compounds were detected by our GC-MS analytical conditions used. As a result, the essential oil fragrance of Nardostachys jatamansi would be clinically useful for a sedative by either inhalation or oral administration.

Effect of Various Natural Antioxidants on the Safflower Oil (홍화유에 대한 천연 항산화제의 항산화력 비교)

  • 이명숙;이세희;송경빈
    • Food Science and Preservation
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    • v.11 no.1
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    • pp.126-129
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    • 2004
  • To elucidate the effect of various natural antioxidants on the safflower oil, rosemary extract, green tea extract, isoflavon, Phaffia rhodozyma extract, tocopherol, sesamol, and BRA as a control were added to the safflower oil and stored at 60$^{\circ}C$ for 4 weeks. During storage, its viscosity and antioxidative activity were determined. Viscosity of the oil increased with increasing storage period and was related with its antioxidative acvtivity. Antioxidative avtivity among antioxidants used in this study were in order of green tea extract>BHA>tocopherol>rosemary extract>isoflavon>sesamol>Phaffia rhodozyma extract. Green tea extract was the best in terms of antioxidative acvtivity. After 4 weeks, its peroxide value decreased up to 80.4% of the control, and 42.1% for acid value and 47.4% for TBA value decreased.

Manufacturing of Seasoning Oil as Sesame Oil Substituted used for Roasting Flavor (볶음향을 응용한 참기름 대체 향미유의 개발)

  • 구본순;김덕숙;정락철
    • The Korean Journal of Food And Nutrition
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    • v.15 no.4
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    • pp.337-341
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    • 2002
  • Crude seasoning oil was manufactured from direct heat treatment of com germ, wheat germ, dehulled peanut, mustard, black pepper and com oil(RBD type). The sesame oil substituted was composed of this crude seasoning oil, oil soluble natural pigment mixture and com oil, and showed the similar appearance, flavor and taste with sesame oil. Free fatty acid content of SO was 1/4 than sesame oil, the other values were similar, respectively. Use of this SO was suitable about cooking, general frying as well as frying of laver and Chinese cake. As a result, this SO had possiblility as sesame oil substituted.

Natural Convection Heat Transfer from a Heated Fine Wire in Nanofluids (나노유체에 잠긴 가는 열선 주위의 자연대류 열전달)

  • Lee, Shin-Pyo
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.31 no.9
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    • pp.807-813
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    • 2007
  • Recent research on nanofluids under forced convection experiment shows that there is little relationship between convective heat transfer and thermal conductivity increase of nanofluids. This kind of new findings are totally different from the traditional theory of nanofluids, which says that the higher thermal conductivity is a prerequisite for convective heat transfer enhancement. To elucidate this controversial issue in a very comprehensible manner, simple natural convection experiment has been carried out for the water- and oil-based nanofluids. ($water-Al_2O_3$, transformer $oil-Al_2O_3$) Present research shows that there exists strong dependence between natural convection performance and thermal conductivity increase of nanofluids.

Wild Carrot Oil Extract is Selectively Cytotoxic to Human Acute Myeloid Leukemia Cells

  • Tawil, Mirna;Bekdash, Amira;Mroueh, Mohammad;Daher, Costantine F.;Abi-Habib, Ralph J.
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.2
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    • pp.761-767
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    • 2015
  • Background: In this study, we used Daucus carota oil extract (DCOE) to target acute myeloid leukemia (AML) cells. All the AML cell lines tested were sensitive to the extract while peripheral mononuclear cells were not. Analysis of mechanism of cell death showed an increase in cells positive for annexinV and for active caspases, indicating that DCOE induces apoptotic cell death in AML. Inhibition of the MAPK pathway decreased sensitivity of AML cells to DCOE, indicating that cytotoxicity may be dependent on its activity. In conclusion, DCOE induces selective apoptosis in AML cells, possibly through a MAPK-dependent mechanism.

Utilization of alternative marine fuels for gas turbine power plant onboard ships

  • El Gohary, M. Morsy;Seddiek, Ibrahim Sadek
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.5 no.1
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    • pp.21-32
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    • 2013
  • Marine transportation industry is undergoing a number of problems. Some of these problems are associated with conventional marine fuel-oils. Many researchers have showed that fuel-oil is considered as the main component that causes both environmental and economic problems, especially with the continuous rising of fuel cost. This paper investigates the capability of using natural gas and hydrogen as alternative fuel instead of diesel oil for marine gas turbine, the effect of the alternative fuel on gas turbine thermodynamic performance and the employed mathematical model. The results showed that since the natural gas is categorized as hydrocarbon fuel, the thermodynamic performance of the gas turbine cycle using the natural gas was found to be close to the diesel case performance. The gas turbine thermal efficiency was found to be 1% less in the case of hydrogen compared to the original case of diesel.

Natural Oleosomes Loading Emulsion Technology -Loading Oleosomes as Delivery Systems for Improved Cosmetic Efficacies- (천연 Oleosomes를 이용한 에멀젼 기술)

  • Tang, Diana;Guth, Jack
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.32 no.3 s.58
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    • pp.149-152
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    • 2006
  • Natural safflower oleosomes are small ($1{\sim}3{\mu}m$) spherical shaped "reservoir", inside which the seed stores triglycerides for use as a future energy source. The surface of the oleosome is covered with a high molecular weight ($20{\sim}24$ KDa) oleosin protein which has been demonstrated to have emulsification properties. Traditionally, oleosomes from oil bearing seeds such as safflower were simply crushed to liberate the oil within. Our patented DermaSphere technology allows for the isolation of oleosomes in the intact state. Once isolated, these materials can be used in skin care formulations to deliver the emolliency, occlusivity, and anti-oxidant effects typically associated with safflower oil. However, because of the presence of the emulsifying oleosin protein covering the spherical oil body, oleosomes have self-emulsification property as well as can emulsify other oil phase in typical oil-in-water (O/W) emulsion. The oleosomes can literally serve as the entire non-active portion of the oil phase of a typical skin care product. Most importantly, natural oleosomes can be loaded with other oil-soluble active materials and can therefore be used as delivery systems for improved cosmetic efficacies. Oleosomes can be loaded with various actives, such as fragrances, vitamins, inset repellents, and UV chromophores. The loaded oleosomes can be utilized to either protect the active ingredients within the formulation itself or to allow for control release of those actives over time.