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Wyszukujesz frazę "coconut oil" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Electrooxidation of Coconut Oil in Alkaline Electrolyte
Autorzy:
Włodarczyk, P. P.
Włodarczyk, B.
Powiązania:
https://bibliotekanauki.pl/articles/123509.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
fuel cell
electrooxidation
coconut oil
renewable energy sources
environment engineering
Opis:
Providing more and more energy is an essential task of today's energetic industry. In the last few years, addition to traditional methods of energy production, alternative energy sources have been fast developing. One of the devices that can use these sources is fuel cell. The fuel cells can be a power source of future mainly due to their high efficiency, low influence on environment and possibility of powering with different fuels. Most often fuel cells are powered by hydrogen. However, problems with the problems with its cheap production and storage are the reason for the search of new fuels for fuel cells. But it must be a fuel that will provide zero or low emission level. One of these fuels can be vegetable oil. The paper presents measurements of electrooxidation of coconut oil emulsion on a smooth platinum electrode in an aqueous solution of KOH. Electrochemical measurements were performed in a glass cell with AMEL System 5000 potentiostat. The obtained maximum current density is equal 25 mA/cm2. So, a fundamental possibility of using the coconut oil as fuel for fuel cell. But is necessary to keep the temperature of process above 303K.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 173-179
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Glycerolysis-Interesterification of Palm Olein and Coconut Oil Blend using Two High-Shear Continuous Stirred Tank Reactors
Autorzy:
Ardani, Aulia Safrina
Millati, Ria
Yanti, Rini
Rohana, Nanda Legiasa Rabiul Tsani
Hidayat, Chusnul
Powiązania:
https://bibliotekanauki.pl/articles/27315667.pdf
Data publikacji:
2023
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Glycerolysis-interesterification
Continuous stirred tank reactor
Monoacylglycerol
Diacylglycerol
Palm olein
Coconut oil
Opis:
This study aimed to synthesize structured lipids containing high mono- and diacylglycerol by glycerolysisinteresterification of palm olein and coconut oil blend in two high-shear continuous stirred tank reactors in series. The result showed that various flow rates of 11 mL/min to 23 mL/min did not significantly increase mono- and diacylglycerol concentration, while at a flow rate of 26 mL/min only a low concentration of mono- and diacylglycerol was formed. However, a flow rate 20 mL/min and an agitating speed of 2000 rpm produced mono- and diacylglycerol concentration of 61.7% with the highest productivity of 2.1%/min and a triacylglycerol conversion of 64.6%. The slip melting point, melting point, hardness, emulsion capacity, and stability were 23.77 oC, 30 oC, 14.6 N, 65.15%, and 59.15%, respectively. The product’s solid fat content at 25 oC was lower than cocoa butter. The product contained β’ and β crystals, thus it can be applied as a cocoa butter substitute.
Źródło:
Polish Journal of Chemical Technology; 2023, 25, 4; 1--9
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiesel from coconut acid oil using Candida rugosa and Candida antarctica lipases
Autorzy:
Nandi, Sumit
Bhattacharyya, Rupa
Powiązania:
https://bibliotekanauki.pl/articles/1031280.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bioesterification
Biohydrolysis
Candida Antarctica
Candida rugosa
Coconut acid oil
Opis:
Coconut acid oil (CAO) is a byproduct from the processing of coconut oil. CAO has a tremendous potential in the preparation of alternative fuel as biodiesel. In the present research investigation, CAO has been utilized for the preparation of biodiesel using Lipase AY Amano 30 (Candida rugosa) and Novozyme 40013 (Candida antarctica) in the presence of methanol using hexane as solvent. Initially, Lipase AY Amano 30 has been used for the biohydrolysis of neutral glycerides present in CAO, under the influence of water at 400C. Henceforth, the hydrolysed CAO was bioesterified with methanol in the presence of non-specific immobilized enzyme NS 40013 for the production of alternative fuel. The characteristics of CAO biodiesel (CAOB) was compared with diesel fuel and good outcome has been revealed. So cheap raw materials like CAO has been selectively utilized for the production of alternative fuel through a novel technology which may be useful for the partial replacement of present non-renewable fuels.
Źródło:
World News of Natural Sciences; 2021, 34; 72-81
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidant property and GCMS profile of oil extracted from Cocos nucifera using a fermentation method
Autorzy:
Adenike, A.A.
Adegbola, P.
Fadahunsi, O.S.
Powiązania:
https://bibliotekanauki.pl/articles/80524.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Cocos nucifera
oil extract
fermentation method
antioxidant property
coconut oil
physicochemical property
medium chain fatty acid
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Beneficial effect of predominantly coconut oil consumption on lipid profile: a study of a rare population in Indonesia
Autorzy:
Nugraha, Gaga Irawan
Hutabarat, Astri
Regina, Natalia
Kurnia, Irma Susan
Rachmi, Cut Novianti
Powiązania:
https://bibliotekanauki.pl/articles/1166079.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Apolipoprotein A1
Cocos nucifera
Indonesia
LDL-c/HDL-c ratio
coconut oil
profil lipid
Opis:
Coconut oil is a source of fat which still sparks controversies when it comes to function. Some stated it can worsen lipid profile which then play an important role as a risk factor of cardiovascular disease. This cross sectional study was conducted in Indonesia involving 57 participants who used coconut oil as a predominant source of fat. Body mass index, physical activity and dietary intake were considered as subject characteristics. Serum concentrations of total cholesterol, triglyceride, LDL-c, HDL-c were determined by using the enzymatic method and Apo A1 were determined by using immunoturbidometry method. Result implied normal range of lipid profile and 78.95% of the subjects have optimal LDL-c/HDL-c ratio. Majority of the subjects (61.4%) have acceptable level of Apo A1, it showed that they have good HDL-c level. These results are consistent with other studies that support beneficial effect of coconut oil on lipid profile.
Źródło:
World Scientific News; 2018, 106; 131-140
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of FAME from selected vegetable oils and proper evaluation of their content in diesel fuel
Zastosowanie FAME z wybranych olejów roślinnych, a prawidłowa ocena ich zawartości w oleju napędowym
Autorzy:
Kopydłowski, A.
Nowak, D.
Wieczorek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1835268.pdf
Data publikacji:
2018
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
coconut oil FAME
palm oil FAME
soybean oil FAME
infrared spectrometry
FAME content determination
FAME oleju kokosowego
FAME oleju palmowego
FAME oleju sojowego
spektrometria w podczerwieni
oznaczanie zawartości FAME
Opis:
This article describes the study to determine the effect of FAME from different vegetable oils on the correctness of determination of FAME content in diesel fuel according to PN-EN 14078. It presents the study of the soybean oil, palm and coconut FAME model blends made from esters with different hydrocarbon chain lengths and real FAME samples of soybean, palm and coconut oil. As part of this work there was prepared a calibration curve, dedicated to determining the content of coconut oil FAME. Results of tests and the impact of applied above FAME on results of the FAME determination in diesel fuel were discussed.
Niniejszy artykuł opisuje badania mające na celu określenie wpływu zastosowania FAME wytwarzanych z różnych olejów roślinnych na prawidłowość oznaczenia zawartości FAME w oleju napędowym według PN-EN 14078. Badaniom zostały poddane mieszaniny modelowe FAME oleju sojowego, palmowego oraz kokosowego sporządzonych z estrów o różnych długościach łańcuchów węglowodorowych oraz rzeczywistych próbek FAME oleju sojowego, palmowego i kokosowego. W ramach prowadzonych prac została sporządzona krzywa kalibracyjna, dedykowana do oznaczania zawartości FAME oleju kokosowego. Dokonano omówienia otrzymanych wyników badań oraz wpływu pochodzenia zastosowanego FAME na wyniki oznaczenia jego zawartości w oleju napędowym.
Źródło:
Nafta-Gaz; 2018, 74, 8; 613-618
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production and characterization of biodiesel from coconut extract (Cocos nucifera)
Autorzy:
Maitera, O. N.
Louis, H.
Dass, P. M.
Akakuru, U. O.
Joshua, Y.
Powiązania:
https://bibliotekanauki.pl/articles/1118351.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biodiesel
coconut
fuels
oil
renewable energy
Opis:
In this study, oil was extracted from coconut. The extracted oil was used to produce biodiesel and the oil and the biodiesel produced were characterised. Biodiesel fuels are alternative diesel fuels usually obtained from renewable sources, mainly, vegetable and animal oils. Oil was extracted from coconuts bought from a local market in Wukari Taraba State, Nigeria, by means of the solvent method. The extracted coconut oil was then characterized. This showed that the coconut oil has a density of 0.91 g, viscosity of 23 mm2/s, saponification value of 191 mg KOH/g, iodine value of 10 mgl2/g, acid value 1of 4.0 mg KOH/g and flash point of 266 °C. The biodiesel of the oil was produced using a transesterification process. The biodiesel was also characterized. Results obtained showed that the biodiesel has a density of 0.89 g, viscosity of 2.83 mm2/s, acid value of 0.18 mg KOH/g, saponification value of 91 mg KOH/g, iodine value of 8 mgl2/g, acid value of 0.18 mg KOH/g and flash point of 110 °C. The physicochemical properties of the biodiesel produce from coconut oil is comparable with that of standard biodiesel in the range of ASTM specifications.
Źródło:
World News of Natural Sciences; 2017, 9; 62-70
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization and feasibility of biomass fuel pellets made of Colombian timber, coconut and oil palm residues regarding European standards
Autorzy:
Forero Núnez, C. A.
Jochum, J.
Sierra Vargas, F. E.
Powiązania:
https://bibliotekanauki.pl/articles/363258.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
biomass
coconut shells
oil palm shells
pellets
renewable energy
biomasa
energia odnawialna
orzech kokosowy
palma olejowa
skorupa
owoc
Opis:
Strong correlation between economic development, energy demand and fossil fuels utilization during last decades has caused some negative impacts worldwide, based on it, the renewable resources for energy production should be employed to mitigate these effects. Nowadays, biomass is one of the most prominent renewable sources, but factors such as low density and high moisture content are some drawbacks. In order to overcome these problems, some companies use different types of biomass to provide solid biofuels with higher energy density, mechanical resistance and standardized dimensions. Wood pellet industry has increased exponentially during last years, faster than timber industries; therefore, new raw materials should be evaluated to guarantee pellets demand in the near future. Some of them are agricultural residues. Colombia is a country with an interesting potential for biomass production because there is a rising generation of agricultural products. This work aims to assess main properties of Colombian timber industry residues, coconut shells and oil palm shells and compare the characteristics of pellets made from these raw materials with European standards. Pellets made from these feedstocks have an average density between 850 and 1025kg·m-3, low ash contents and heating values around 18000kJ·kg-1. Coconut shell pellets have low compression ratios and problems during pretreatment; whereas, sawdust, wood shavings and oil palm shell pellets proved to be an attractive opportunity for pellet industry development in Colombia.
Źródło:
Environmental Biotechnology; 2012, 8, 2; 67-76
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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