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1. Continuous self-provided fermentation for microbial lipids production from acetate by using oleaginous yeasts Cryptococcus podzolicus and Trichosporon porosum

Author:
Qian, Xiujuan; Gorte, Olga; Chen, Lin; Zhang, Wenming; Dong, Weiliang; Ma, Jiangfeng; Xin, Fengxue; Jiang, Min; Ochsenreither, Katrin
Source:
Renewable energy 2020 v.146 pp. 737-743
ISSN:
0960-1481
Subject:
vegetable oil,   etc   ; Trichosporon; acetates; automation; biodiesel; byproducts; carbon; fuel production; glucose; liquid state fermentation; microbial growth; sodium acetate; volatile fatty acids; wastes; yeasts;     Show all 15 Subjects
Abstract:
... Conversion of acetates, the by-products generated in industrial processes into microbial lipids by using oleaginous yeasts offers a promising alternative for the economic utilization of waste acetates. In this study, two newly isolated oleaginous yeasts Cryptococcus podzolicus DSM 27192 and Trichosporon porosum DSM 27194 were found to be able to grow with acetate as the sole carbon source and tole ...
DOI:
10.1016/j.renene.2019.07.013

2. The role of pole and molecular geometry of fatty acids in vegetable oils droplet on ignition and boiling characteristics

Author:
Marlina, Ena; Wijayanti, W.; Yuliati, L.; Wardana, I.N.G.
Source:
Renewable energy 2020 v.145 pp. 596-603
ISSN:
0960-1481
Subject:
vegetable oil,   etc   ; boiling; carbon; chemical bonding; droplets; energy; evaporation rate; geometry; glycerol; heat; latent heat; neutralization; renewable energy sources; temperature; unsaturated fatty acids;     Show all 15 Subjects
Abstract:
... Vegetable oils consist of glycerol and three variants of fatty acid. Each fatty acid gives different influence on ignition process which is important to be studied. Generally, fatty acids are categorized into polar and nonpolar fatty acids. Both of them have straight and bent molecule geometry. Their roles on evaporation and ignition are discussed based on their polarity and geometry. The study wa ...
DOI:
10.1016/j.renene.2019.06.064

3. Sample preparation for the analysis of fire debris – Past and present

Author:
Kerr, Tanya J.
Source:
Journal of separation science 2018 v.41 no.21 pp. 4055-4066
ISSN:
1615-9306
Subject:
vegetable oil,   etc   ; alcohols; biodegradation; biodiesel; soil;     Show all 5 Subjects
Abstract:
... Identification of ignitable liquids from fire debris is such a major part of an arson investigation that much time and effort has gone into advancing sample preparation techniques to capture complicated and unexpected hydrocarbon compounds. Advancements in sample preparation have been made in order to account for biodegradation of commonly used accelerants, rarely encountered compounds, such as ve ...
DOI:
10.1002/jssc.201800556

4. Temperature and composition induced morphology transition of Cerberus emulsion droplets

Author:
Ge, Lingling; Tong, Weijie; Bian, Qingfa; Wei, Duo; Guo, Rong
Source:
Journal of colloid and interface science 2019 v.554 pp. 210-219
ISSN:
0021-9797
Subject:
vegetable oil,   etc   ; contact angle; droplets; emulsifiers; emulsions; energy; geometry; mixing; silicone; surfactants; temperature; thermodynamics; topology;     Show all 13 Subjects
Abstract:
... Various advanced geometries are endowed by the unique structure of “three rooms” of immiscible oils composing the Cerberus droplets. Adjustable interfacial properties and tunable volume ratio in the four-liquid system render it possible to realize the controlled morphology transition by the variation of temperature and emulsion composition.Cerberus emulsions are prepared in batch scale by traditio ...
DOI:
10.1016/j.jcis.2019.07.011

5. A comparative study of template matching, ISO cluster segmentation, and tree canopy segmentation for homogeneous tree counting

Author:
Norzaki, Nazirah; Tahar, Khairul Nizam
Source:
International journal of remote sensing 2019 v.40 no.19 pp. 7477-7499
ISSN:
1366-5901
Subject:
vegetable oil,   etc   ; Elaeis guineensis; Raja; algorithms; canopy; industry; remote sensing; survival rate; trees; Malaysia;     Show all 10 Subjects
Abstract:
... Counting trees can be challenging due to the crowded environment, time-consuming, and expensive operation. The information on the locations and the number of oil palm trees in a plantation area is important in many aspects. First, it is important to predict the yield of palm oil, which is the most widely used vegetable oil in the world. Second, it provides essential information to understand the g ...
DOI:
10.1080/01431161.2018.1524182

6. Recent advances in biorefinery of astaxanthin from Haematococcus pluvialis

Author:
Khoo, Kuan Shiong; Lee, Sze Ying; Ooi, Chien Wei; Fu, Xiaoting; Miao, Xiaoling; Ling, Tau Chuan; Show, Pau Loke
Source:
Bioresource technology 2019 v.288 pp. 121606
ISSN:
0960-8524
Subject:
vegetable oil,   etc   ; Haematococcus pluvialis; astaxanthin; biorefining; ionic liquids; supercritical fluid extraction;     Show all 6 Subjects
Abstract:
... Haematococcus pluvialis is one of the most abundant sources of natural astaxanthin as compared to others microorganism. Therefore, it is important to understand the biorefinery of astaxanthin from H. pluvialis, starting from the cultivation stage to the downstream processing of astaxanthin. The present review begins with an introduction of cellular morphologies and life cycle of H. pluvialis from ...
DOI:
10.1016/j.biortech.2019.121606

7. Protective effect of hydroxytyrosol and rosemary extract in a comparative study of the oxidative stability of Echium oil

Author:
Bañares, Celia; Martin, Diana; Reglero, Guillermo; Torres, Carlos F.
Source:
Food chemistry 2019 v.290 pp. 316-323
ISSN:
0308-8146
Subject:
vegetable oil,   etc   ; Echium; antioxidants; differential scanning calorimetry; oxidation; oxidative stability; polar compounds; protective effect; rosemary; temperature;     Show all 10 Subjects
Abstract:
... The oxidative stability of Echium oil has been studied by two accelerated oxidation methodologies namely Rancimat and differential scanning calorimetry at selected temperatures in the range 50–110 °C. Kinetic analyses have provided Arrhenius parameters, oxidative stability indexes (OSI), temperature coefficients (tcoef), Q10 and OSI at 20 °C (OSI20) for both methodologies focussing on secondary an ...
DOI:
10.1016/j.foodchem.2019.03.141

8. Transport and release of electron donors and alkalinity during reductive dechlorination by combined emulsified vegetable oil and colloidal Mg(OH)2: Laboratory sand column and microcosm tests

Author:
Dong, Jun; Yu, Dongxue; Li, Yan; Li, Bowen; Bao, Qiburi
Source:
Journal of contaminant hydrology 2019 v.225 pp. 103501
ISSN:
0169-7722
Subject:
vegetable oil,   etc   ; alkalinity; dechlorination; emulsions; groundwater; magnesium hydroxide; pH; porous media; sand; solvents; tetrachloroethylene;     Show all 11 Subjects
Abstract:
... Emulsified vegetable oil combined with colloidal Mg(OH)2 (EVO-CM) can slowly release electron donors and OH– into groundwater and is therefore regarded as a promising amendment for enhanced in situ treatment of chlorinated solvents, such as tetrachloroethene (PCE) and trichloroethene (TCE). However, its migration ability in different porous media and the simultaneous release of electron donor and ...
DOI:
10.1016/j.jconhyd.2019.103501

9. Extraction and Preconcentration of Trace Malondialdehyde from Lipid-Rich Foods Using Ion Pair–Based Solvent Bar Liquid-Phase Microextraction

Author:
Zamani, Abbasali; Fashi, Armin
Source:
Food analytical methods 2019 v.12 no.7 pp. 1625-1634
ISSN:
1936-9751
Subject:
vegetable oil,   etc   ; analytical methods; cationic surfactants; foods; hydrophobicity; liquid-phase microextraction; malondialdehyde; milk; solvents; thiobarbituric acid;     Show all 10 Subjects
Abstract:
... In this research, for the first time, a new strategy based on ion pair–based solvent bar liquid-phase microextraction (IP-SB-LPME) in combination with GC instrument was introduced for sensitive determination of malondialdehyde (MDA) in lipid-rich foods. In this three-phase process, a cationic surfactant was added initially into alkaline donor solution to form hydrophobic ion pair with the anionic ...
DOI:
10.1007/s12161-019-01497-5

10. Understanding the difference of 4‐hydroxyhexenal and 4‐hydroxynonenal formation in various vegetable oils during thermal processes by kinetic and thermodynamic study

Author:
Ma, Lukai; Liu, Guoqin; Zhang, Hua; Liu, Xinqi
Source:
International journal of food science & technology 2019 v.54 no.7 pp. 2468-2477
ISSN:
0950-5423
Subject:
vegetable oil,   etc   ; aldehydes; frying; heat; heat treatment; kinetics; linseed oil; prediction; rapeseed; temperature; toxicity;     Show all 11 Subjects
Abstract:
... The formation of two toxic aldehydes, 4‐hydroxyhexenal (HHE) and 4‐hydroxynonenal (HNE) were monitored in five vegetable oils during thermal processing (100–200 °C) with the results modelled. HHE was only determined in rapeseed and linseed oil, while HNE was determined in all tested oils and the contents varied significantly depending on the oil type. For HHE/HNE‐detected oils, the evolution durin ...
DOI:
10.1111/ijfs.14191

11. A review on deoxygenation of triglycerides for jet fuel range hydrocarbons

Author:
Khan, Saima; Kay Lup, Andrew Ng; Qureshi, Khan Muhammad; Abnisa, Faisal; Wan Daud, Wan Mohd Ashri; Patah, Muhamad Fazly Abdul
Source:
Journal of analytical and applied pyrolysis 2019 v.140 pp. 1-24
ISSN:
0165-2370
Subject:
vegetable oil,   etc   ; catalysts; ecosystem services; feedstocks; fuel production; fuels; hydrocarbons; metals; models; pyrolysis; triacylglycerols;     Show all 11 Subjects
Abstract:
... Production of bio-jet fuel from triglycerides (TGs) based vegetable oils have recently received increased attention from research and industries because of its renewability and environmental benefits. Catalytic deoxygenation (DO) is a suitable way to produce bio-jet fuel from TGs. Presently, the main challenges faced by DO are the optimized selection of feedstocks, catalysts, reaction pathways and ...
DOI:
10.1016/j.jaap.2019.03.005

12. Catalytic deoxygenation of methyl laurate as a model compound to hydrocarbons on hybrid catalysts composed of Ni–Zn alloy and HY zeolite

Author:
Pan, Zhengyi; Wang, Rijie; Chen, Jixiang
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.6 pp. 1777-1787
ISSN:
0268-2575
Subject:
vegetable oil,   etc   ; alloys; catalysts; esters; hydrocarbons; hydrogen; milling; models; nickel; synergism; zeolites;     Show all 11 Subjects
Abstract:
... BACKGROUND: The deoxygenation of renewable vegetable oils in a hydrogen atmosphere is feasible for yielding diesel‐like hydrocarbons. In this work, hybrid catalysts composed of Ni–Zn alloy and HY zeolite were designed to achieve a highly efficient deoxygenation. RESULTS: NiZn‐LDH‐HY, NiZn‐O‐HY and NiZn/HY hybrid catalysts composed of Ni‐rich Ni–Zn alloy and HY zeolite were prepared by various meth ...
DOI:
10.1002/jctb.5943

13. Tar reduction in biomass syngas using heat exchanger and vegetable oil bubbler

Author:
Thapa, Sunil; Indrawan, Natarianto; Bhoi, Prakashbhai R.; Kumar, Ajay; Huhnke, Raymond L.
Source:
Energy 2019 v.175 pp. 402-409
ISSN:
0360-5442
Subject:
vegetable oil,   etc   ; biomass; canola oil; cleaning; cooling; dewpoint; heat exchangers; synthesis gas;     Show all 8 Subjects
Abstract:
... A heat exchanger and vegetable oil bubbling system was designed and tested for biomass-generated syngas cooling and cleaning. The fully enclosed heat exchanger contained water at 15 °C, with syngas having to travel 35 m3/s. Using canola oil, the bubbler was tested at 70 and 100 mm oil depths and 5 and 10 mm syngas bubble sizes to determine the effect of tar removal. The results showed that tar rem ...
DOI:
10.1016/j.energy.2019.03.045

14. Modes of coalescence of aqueous anchored drops in insulating oils under an electric field

Author:
Anand, Vikky; Juvekar, Vinay A.; Thaokar, Rochish M.
Source:
Colloids and surfaces 2019 v.568 pp. 294-300
ISSN:
0927-7757
Subject:
vegetable oil,   etc   ; colloids; droplets; electric field; emulsions; hydrocarbons; petroleum; silicone; viscosity;     Show all 9 Subjects
Abstract:
... The electrocoalescence of aqueous drops in an insulating oil is the fundamental process in the dehydration of emulsions of water in insulating oils, such as crude oils. The great difference in the conductivity of the aqueous droplets and the oil used as the suspending medium suggests that the conductivity of the oil medium should not affect the coalescence process. In this work, contrary to this e ...
DOI:
10.1016/j.colsurfa.2019.02.002

15. Oleaginous yeasts for sustainable lipid production—from biodiesel to surf boards, a wide range of “green” applications

Author:
Vasconcelos, Bruno; Teixeira, José Carlos; Dragone, Giuliano; Teixeira, José António
Source:
Applied microbiology and biotechnology 2019 v.103 no.9 pp. 3651-3667
ISSN:
0175-7598
Subject:
vegetable oil,   etc   ; biodiesel; economic feasibility; income; lipids; markets; production costs; yeasts;     Show all 8 Subjects
Abstract:
... A growing world population and a growing number of applications for vegetable oils are generating an increasing demand for these oils, causing serious environmental problems. A sustainable lipid production is then fundamental to address these problems. Oleaginous yeasts are a promising solution for sustainable lipid production, but, with the current knowledge and technology, they are still not a s ...
DOI:
10.1007/s00253-019-09742-x

16. Ultrasonic Intensification To Produce Diester Biolubricants

Author:
Patience, Nicolas A.; Galli, Federico; Rigamonti, Marco G.; Schieppati, Dalma; Boffito, Daria C.
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.19 pp. 7957-7963
ISSN:
1520-5045
Subject:
vegetable oil,   etc   ; biolubricants; ecological footprint; esterification; experimental design; fluid mechanics; oleic acid; temperature; ultrasonics;     Show all 9 Subjects
Abstract:
... Biolubricants synthesized from vegetable oils with oleic acid and 1,3-propanediol possess better cold flow properties and have a smaller environmental footprint than mineral-based lubricants. However, their synthesis is lengthy (>6 h) and requires temperatures above 120 °C. We applied ultrasound (US) to synthesize long-chain diesters (biolubricants): an ultrasonic horn delivered rated powers of 50 ...
DOI:
10.1021/acs.iecr.9b00717

17. Experimental investigation of cooling behavior and residual stresses for quenching with vegetable oils at different bath temperatures

Author:
Brito, Pedro; Ramos, Pedro Augusto; Resende, Leandro Pegorete; de Faria, Douglas Antônio; Ribas, Omar Khayyam
Source:
Journal of cleaner production 2019 v.216 pp. 230-238
ISSN:
0959-6526
Subject:
vegetable oil,   etc   ; X-ray diffraction; carbon; heat treatment; mineral oil; motivation; soybeans; steel; sunflower oil; temperature;     Show all 10 Subjects
Abstract:
... The motivation to reduce industrial dependence of petroleum-derived products has highlighted the possibility of vegetable oils as cooling media for quenching operations. In the present work, the performance of vegetable oils applied to quenching carbon and alloy steels at different bath temperatures was analyzed, with the goal of assessing the influence of quenchant type and temperature on the res ...
DOI:
10.1016/j.jclepro.2019.01.194

18. Mechanisms of isomerization and oxidation in heated trilinolein by DFT method

Author:
Li, Changmo; Ma, Guiting; Yao, Yunping; Liu, Wentao; Zhou, Hang; Mu, Hongyan; Wang, Shuo
Source:
RSC advances 2019 v.9 no.17 pp. 9870-9877
ISSN:
2046-2069
Subject:
vegetable oil,   etc   ; computer software; density functional theory; energy; isomerization; oxidation; temperature; trans fatty acids;     Show all 8 Subjects
Abstract:
... In order to investigate the molecular mechanisms of the heat-induced cis/trans isomerization and oxidative cleavage of trilinolein, a highly purified sample was heated at a range of temperatures (120, 140, 160, 180, 200, 220 °C) for 5 h. The reaction process of cis/trans isomerization of C18:2 was studied by a combination of the gas chromatogram (GC) method with density functional theory (DFT). Wh ...
DOI:
10.1039/c9ra00328b

19. Development and Validation of a QuEChERS-LC-MS/MS Method for the Analysis of Phenolic Compounds in Rapeseed Oil

Author:
Song, Jun-Ge; Cao, Chen; Li, Jinwei; Xu, Yong-Jiang; Liu, Yuanfa
Source:
Journal of agricultural and food chemistry 2019 v.67 no.14 pp. 4105-4112
ISSN:
1520-5118
Subject:
vegetable oil,   etc   ; acetic acid; acetonitrile; liquid chromatography; phenolic compounds; rapeseed oil; sorbents; tandem mass spectrometry;     Show all 8 Subjects
Abstract:
... In recent years, the determination of phenolic compounds in vegetable oil has aroused broad attention because these compounds have beneficial effects on health. In this work, a novel method based on the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and LC-MS/MS was developed for the analysis of phenolic compounds. A total of 18 mL of acetonitrile, 3 mL of water, and 270 mg of C ...
DOI:
10.1021/acs.jafc.9b00029

20. Dynamic operating conditions strategy for water hybrid cooling under variable heating demand

Author:
Oliveira, Cíntia Carla Melgaço de; Brittes, José Luiz Pereira; Silveira Junior, Vivaldo
Source:
Applied energy 2019 v.237 pp. 635-645
ISSN:
0306-2619
Subject:
vegetable oil,   etc   ; air flow; cooling; electric power; energy efficiency; pumps; temperature; water flow;     Show all 8 Subjects
Abstract:
... This work presents a study of a dynamic strategy for obtaining the lowest consumption of electrical energy in pumps and fans with varying operating conditions for the hybrid cooling of water, which is used as thermal fluid in a cooling unit for vegetable oil. The effects of the operating variables (air flow rate, water flow rate and heating power) on the cooling of water and oil and the electrical ...
DOI:
10.1016/j.apenergy.2019.01.053