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1. Non-natural lipids: Synthesis and characterization of esters from meta-carborane-1-carboxylic acid

Author:
Tribovane, Dhilan C.; Scholz, Matthias S.
Source:
Chemistry and physics of lipids 2018 v.210 pp. 149-154
ISSN:
0009-3084
Subject:
fatty acid esters,   etc   ; alcohols; boron; carbon; fatty acids; hydrophobicity;     Show all 6 Subjects
Abstract:
... Lipids are defined as apolar molecules comprising as major classes fatty acids and fatty acid esters of normally natural origin. Non-natural components, such as dicarba-closo-dodecaboranes (in short carboranes) can also form acids and esters, which reveal lipid-like properties. Carboranes are synthetic boron clusters featuring ten BH and two CH vertices, organized in icosahedral shape. The highly ...
DOI:
10.1016/j.chemphyslip.2017.08.008

2. Acid-tolerant microalgae can withstand higher concentrations of invasive cadmium and produce sustainable biomass and biodiesel at pH 3.5

Author:
Abinandan, Sudharsanam; Subashchandrabose, Suresh R.; Venkateswarlu, Kadiyala; Perera, Isiri Adhiwarie; Megharaj, Mallavarapu
Source:
Bioresource technology 2019
ISSN:
0960-8524
Subject:
fatty acid esters,   etc   ; Desmodesmus; Fourier transform infrared spectroscopy; acid tolerance; biodiesel; biomass; cadmium; chlorophyll; culture media; heavy metals; microalgae; pH;     Show all 12 Subjects
Abstract:
... Two acid-tolerant microalgae, Desmodesmus sp. MAS1 and Heterochlorella sp. MAS3, originally isolated from non-acidophilic environment, were tested for their ability to withstand higher concentrations of an invasive heavy metal, cadmium (Cd), at an acidic pH of 3.5 and produce biomass rich in biodiesel. The growth analysis, in terms of chlorophyll, revealed that strain MAS1 was tolerant even to 20 ...
DOI:
10.1016/j.biortech.2019.03.001

3. Ethyl Carbazole-Grafted Polysiloxane as Stationary Phase for Gas Chromatography

Author:
Liu, Jingchen; Xu, Li; Bai, Jianchun; Du, Aiqin; Wu, Bo
Source:
Chromatographia 2019 v.82 no.3 pp. 671-682
ISSN:
0009-5893
Subject:
fatty acid esters,   etc   ; benzene; gas chromatography; hydrogen bonding; isomers; polycyclic aromatic hydrocarbons; siloxanes; solutes; temperature; thermal stability; thermogravimetry;     Show all 11 Subjects
Abstract:
... In this work, we synthesized ethyl carbazole-grafted polysiloxanes, namely, ECP-9 and ECP-18, which possessed ethyl carbazole contents of 9% and 18%, respectively. The results of thermogravimetric analysis showed that ECP-9 and ECP-18 polymers lost 2% of weight at 365 °C and 380 °C. The minimum allowable operating temperature for the ECP-9 and ECP-18 was 40 °C. In addition, the ECP-9 and ECP-18 co ...
DOI:
10.1007/s10337-019-03694-0

4. Physical and chemical effects of biodiesel storage on high-density polyethylene: Evidence of co-oxidation

Author:
Erdmann, Maren; Böhning, Martin; Niebergall, Ute
Source:
Polymer degradation and stability 2019 v.161 pp. 139-149
ISSN:
0141-3910
Subject:
fatty acid esters,   etc   ; biodiesel; diesel fuel; fossil fuels; oxidation; plastic deformation; polyethylene; sorption; spectroscopy; storage time; thermoplastics; unsaturated fatty acids;     Show all 12 Subjects
Abstract:
... The physical and chemical effects of diesel and biodiesel fuels on two high-density polyethylene (PE-HD) types were investigated. Both semi-crystalline PE-HD are common thermoplastic materials for container and storage tank applications. Biodiesel, a composition of unsaturated fatty acid esters from renewable resources, was chosen as it is regarded a possible green alternative to fossil fuels. The ...
DOI:
10.1016/j.polymdegradstab.2019.01.018

5. Ru‐Sn‐B/TiO2 catalysts for methyl oleate selective hydrogenation. Influence of the preparation method and the chlorine content

Author:
Sánchez, María A; Mazzieri, Vanina A; Pronier, Stéphane; Vicerich, María A; Especel, Catherine; Epron, Florence; Pieck, Carlos L
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.3 pp. 982-991
ISSN:
0268-2575
Subject:
fatty acid esters,   etc   ; adsorption; catalysts; chlorine; energy; hydrogen; hydrogenation; oleic acid; oleyl alcohols; sodium borohydride; tin; titanium dioxide;     Show all 12 Subjects
Abstract:
... BACKGROUND: Fatty alcohols are produced commercially by selective hydrogenation of fatty acid esters using copper‐chromium catalysts. To reduce drastic reaction conditions, ruthenium‐tin (Ru‐Sn) catalysts reduced with sodium borohydride (NaBH₄) have been proposed. Chlorine (Cl) negatively affects the selectivity and activity of this catalytic system. To get further information on why Cl influences ...
DOI:
10.1002/jctb.5849

6. Molecular Reaction Mechanism for the Formation of 3-Chloropropanediol Esters in Oils and Fats

Author:
Yao, Yunping; Cao, Ruizhi; Liu, Wentao; Zhou, Hang; Li, Changmo; Wang, Shuo
Source:
Journal of agricultural and food chemistry 2019 v.67 no.9 pp. 2700-2708
ISSN:
1520-5118
Subject:
fatty acid esters,   etc   ; Lewis bases; alpha-chlorohydrin; computer software; deodorization; endothermy; energy; lipids; oils; reaction mechanisms; refining; temperature;     Show all 12 Subjects
Abstract:
... 3-Chloro-1,2-propanediol fatty acid esters (3-MCPD esters) are a group of process-induced contaminants that form during the refining and heating of fats and oils. In this study, a combined method of simulated deodorization and computational simulation was used to explore the precursor substance and the generation path of 3-MCPD esters. From the results, 3-MCPD esters reached a content level of 2.2 ...
DOI:
10.1021/acs.jafc.8b06632

7. Production of free lutein by simultaneous extraction and de-esterification of marigold flowers in liquefied dimethyl ether (DME)–KOH–EtOH mixture

Author:
Boonnoun, Panatpong; Tunyasitikun, Pemika; Clowutimon, Weerawat; Shotipruk, Artiwan
Source:
Food and bioproducts processing 2017 v.106 pp. 193-200
ISSN:
0960-3085
Subject:
fatty acid esters,   etc   ; ethanol; flowers; lutein;     Show all 4 Subjects
Abstract:
... Extraction of xanthophylls from marigold flowers using liquefied dimethyl ether (DME) was investigated. The most suitable DME extraction condition was found to be 33:0.5 (w/w) DME to dried marigold flowers ratio and at 35°C, giving 20.65mg of total xanthophylls/g of dried marigold flowers. Following extraction, the suitable de-esterification conditions to convert the extracted lutein fatty acid es ...
DOI:
10.1016/j.fbp.2017.10.002

8. Differential metabolic signatures in naturally and lactic acid bacteria (LAB) fermented ting (a Southern African food) with different tannin content, as revealed by gas chromatography mass spectrometry (GC–MS)-based metabolomics

Author:
Adebo, Oluwafemi Ayodeji; Kayitesi, Eugenie; Tugizimana, Fidele; Njobeh, Patrick Berka
Source:
Food research international 2019 v.121 pp. 326-335
ISSN:
0963-9969
Subject:
fatty acid esters,   etc   ; Lactobacillus fermentum; chemometrics; fatty acids; fermentation; gas chromatography-mass spectrometry; lactic acid bacteria; metabolites; metabolomics; methanol; pesticides; phenols; principal component analysis; sugars; whole grain foods;     Show all 15 Subjects
Abstract:
... Fermented whole grain (WG) sorghum food products including WG-ting can be obtained from different sample sources and fermentation conditions, leading subsequently to variations in the molecular composition of the products. There is however, a lack of detailed understanding and description of differential molecular profiles of these food products. Thus, the current study is a nontargeted gas chroma ...
DOI:
10.1016/j.foodres.2019.03.050

9. Thermal stability and oral absorbability of astaxanthin esters from Haematococcus pluvialis in Balb/c mice

Author:
Zhou, Qingxin; Xu, Jie; Yang, Lu; Gu, Caixia; Xue, Changhu
Source:
Journal of the science of food and agriculture 2019 v.99 no.7 pp. 3662-3671
ISSN:
0022-5142
Subject:
fatty acid esters,   etc   ; Haematococcus pluvialis; adipose tissue; astaxanthin; bioactive compounds; bioavailability; blood plasma; digestive tract; functional foods; heart; intestinal absorption; isomers; liver; mice; muscles; spleen; thermal stability;     Show all 17 Subjects
Abstract:
... BACKGROUND: Astaxanthin is used as a functional nutraceutical and pigment in many food products. It is mostly exists in the form of a fatty acid ester in nature. However, no detailed descriptions are available concerning the stability and oral absorbability of astaxanthin esters. In the present study, the thermal stability and absorbability of astaxanthin esters from Haematococcus pluvialis were e ...
DOI:
10.1002/jsfa.9588

10. Nanoencapsulation of caffeic acid phenethyl ester in sucrose fatty acid esters to improve activities against cancer cells

Author:
Guan, Yongguang; Chen, Huaiqiong; Zhong, Qixin
Source:
Journal of food engineering 2019 v.246 pp. 125-133
ISSN:
0260-8774
Subject:
fatty acid esters,   etc   ; antineoplastic activity; breast neoplasms; caffeic acid; colorectal neoplasms; cytotoxicity; dispersions; encapsulation; heat; nanocapsules; nanoparticles; neoplasm cells; propylene glycol; sucrose; thymol; water solubility;     Show all 16 Subjects
Abstract:
... Caffeic acid phenethyl ester (CAPE) is a natural compound with anticancer activities but has low water solubility. In this work, sucrose fatty acid ester (SFAE) was used to nanoencapsulate CAPE in aqueous propylene glycol (PG) with a temperature-cycle method by heating at 90 °C for 20 min and cooling to 21 °C, followed by additional heating at 90 °C for 5 min and cooling to 21 °C. A higher amount ...
DOI:
10.1016/j.jfoodeng.2018.11.008

11. Significant Down-Regulation of Urea Cycle Generates Clinically Relevant Proteomic Signature in Hepatocellular Carcinoma Patients with Macrovascular Invasion

Author:
Cao, Yin; Ding, WenWen; Zhang, JingZi; Gao, Qi; Yang, HaoXiang; Cao, WangSen; Wang, ZhongXia; Fang, Lei; Du, RongHui
Source:
Journal of proteome research 2019 v.18 no.5 pp. 2032-2044
ISSN:
1535-3907
Subject:
fatty acid esters,   etc   ; Western blotting; arginine; biosynthesis; cholesterol; enzymes; gene ontology; gluconeogenesis; hepatoma; homeostasis; immunohistochemistry; metastasis; patients; proteins; proteome; proteomics; risk factors; staining; therapeutics; urea cycle;     Show all 20 Subjects
Abstract:
... Vascular invasion is considered as the critical risk factor of hepatocellular carcinoma (HCC). To reveal the molecular mechanisms underlying macrovascular invasion (MaVI) in HCC, we performed an iTRAQ based proteomic study to identify notably dysregulated proteins from eight HCC patients with differential vascular invasion and further confirmed them in the other 53 HCC patients. Forty-seven protei ...
DOI:
10.1021/acs.jproteome.8b00921

12. Stability of resveratrol esters with caprylic acid during simulated in vitro gastrointestinal digestion

Author:
Hu, Xiao-Pei; Yin, Fa-Wen; Zhou, Da-Yong; Xie, Hong-Kai; Zhu, Bei-Wei; Ma, Xiao-Chi; Tian, Xiang-Ge; Wang, Chao; Shahidi, Fereidoon
Source:
Food chemistry 2019 v.276 pp. 675-679
ISSN:
0308-8146
Subject:
fatty acid esters,   etc   ; digestion; esterification; food matrix; hydrolysis; in vitro digestion; intestines; models; mouth; octanoic acid; oxidation; phenols; phospholipase A2; protective effect; resveratrol; triacylglycerol lipase;     Show all 16 Subjects
Abstract:
... Lipophenols, esterified phenols with fatty acids, have attracted increasing attention because of their better protective effects in lipid-based food matrices from oxidation. However, little is known about their digestion. In this study, the digestive stability of resveratrol (RSV) esters with caprylic acid (RCAPs) in a model gastrointestinal digestion system was evaluated. The results demonstrated ...
DOI:
10.1016/j.foodchem.2018.10.062

13. Synthesis of 2-Monochloropanol Fatty Acid Esters and Their Acute Oral Toxicities in Swiss Mice

Author:
Zhang, Zhongfei; Yang, Puyu; Gao, Boyan; Huang, Guoren; Liu, Man; Yu, Liangli Lucy
Source:
Journal of agricultural and food chemistry 2019 v.67 no.13 pp. 3789-3795
ISSN:
1520-5118
Subject:
fatty acid esters,   etc   ; animal models; body weight; chlorine; esterification; fatty acids; food contamination; laboratory animals; lethal dose 50; mice; nephrotoxicity; silica gel; sodium borohydride; testes; toxicology;     Show all 15 Subjects
Abstract:
... A novel synthetic route was designed, developed, and utilized to synthesize six high-purity 2-monochloropropanediol fatty acid esters (2-MCPD esters), a group of potential processing-induced food contaminants. A chlorine atom was introduced to C-2 of a diethyl malonate molecule, which was reduced by NaBH₄ and followed by esterification using fatty acids. The reaction products were isolated and pur ...
DOI:
10.1021/acs.jafc.9b01083

14. Proline derivatives incorporating hydrophobic long-chain derived from natural and synthetic fatty acids

Author:
Selva, Elisabet; Soto, J. Javier; Nájera, Carmen; Foubelo, Francisco; Sansano, José M.
Source:
Tetrahedron 2019 v.75 no.10 pp. 1378-1386
ISSN:
0040-4020
Subject:
fatty acid esters,   etc   ; Lewis acids; alkenes; ambient temperature; arachidonic acid; benzaldehyde; chemical structure; cycloaddition reactions; diastereoselectivity; docosahexaenoic acid; hydrophobicity; imines; linoleic acid; oleic acid; oxidation; phthalimide;     Show all 16 Subjects
Abstract:
... The α-hydrophobic long chain-α-amino esters are prepared by α-hydroxylation of a series of fatty acid esters [derived from oleic acid (OA), linoleic acid (LA), arachidonic acid (ARA) and docosahexaenoic acid (DHA)] followed by Mitsunobu reaction and hydrazinolysis of the phthalimide. These amino esters are mixed with aldehydes and electrophilic alkenes to give very good chemical yields and diaster ...
DOI:
10.1016/j.tet.2019.01.051

15. Aroma compound profile of mature coconut water from tall variety through thermal treatment

Author:
Nasution, Zuraidah; Jirapakkul, Wannee; Lorjaroenphon, Yaowapa
Source:
Journal of food measurement & characterization 2019 v.13 no.1 pp. 277-286
ISSN:
2193-4126
Subject:
fatty acid esters,   etc   ; acetoin; coconut water; flavor; headspace analysis; heat treatment; odor compounds; odors; sensory evaluation; shelf life; solid phase microextraction; solvents;     Show all 12 Subjects
Abstract:
... Mature coconut water has inferior flavor characteristics compared to young coconut water. Thermal treatment can potentially be used not only to prolong the shelf life of coconut water, but also to alter its aroma compound profile. Therefore, the effect of heating on aroma compound profile of mature coconut water from tall variety was investigated in this study. Thermal treatment was performed at 8 ...
DOI:
10.1007/s11694-018-9942-x

16. Biotechnological valorization of oils from agro-industrial wastes to produce lipase using Aspergillus sp. from Amazon

Author:
Tacin, Mariana Vendrasco; Massi, Fernanda Pelisson; Fungaro, Maria Helena Pelegrinelli; Teixeira, Maria Francisca Simas; de Paula, Ariela Veloso; de Carvalho Santos-Ebinuma, Valéria
Source:
Biocatalysis and agricultural biotechnology 2019 v.17 pp. 369-378
ISSN:
1878-8181
Subject:
fatty acid esters,   etc   ; Aspergillus; agricultural wastes; bioprocessing; cottonseed oil; enzyme activity; forests; grapeseed oil; olives; pH; soybean oil; soybeans; temperature; thermal stability; triacylglycerol lipase; Brazil;     Show all 16 Subjects
Abstract:
... Lipases are enzymes with a large number of applications at the industrial level. New producers and the development of bioprocess with high productivity are the major challenges of these enzymes industrially. Regarding the production process, oils from agro-industrial waste can emerge as efficient enzymes inductor reducing the production cost. Moreover, this process can minimize environmental probl ...
DOI:
10.1016/j.bcab.2018.11.013

17. Determining influences of silver nanoparticles on morphology and thermal properties of electrospun polyacrylonitrile-based form-stable phase change composite fibrous membranes loading fatty acid ester/eutectics

Author:
Ke, Huizhen; Wei, Qufu
Source:
Thermochimica acta 2019 v.671 pp. 10-16
ISSN:
0040-6031
Subject:
fatty acid esters,   etc   ; additives; differential scanning calorimetry; enthalpy; freezing; melting; nanofibers; nanoparticles; nanosilver; polyacrylonitrile; scanning electron microscopy; stearic acid; temperature; thermal properties; thermogravimetry;     Show all 15 Subjects
Abstract:
... Electrospun polyacrylonitrile/sliver nanoparticles (PAN/Ag-NPs) nanofibrous membranes were fabricated as supporting materials by direct dispersing Ag-NPs additives into PAN solutions. And then a series of form-stable phase change composite fibrous membranes (PCCFMs) were developed by physical adsorbing three different kinds of solid-liquid phase change materials (PCMs) with the melting temperature ...
DOI:
10.1016/j.tca.2018.11.002

18. Saponification Precipitation Method for CsPbBr₃ Nanocrystals with Blue-Green Tunable Emission

Author:
Adhikari, Gopi C.; Vargas, Preston A.; Zhu, Hongyang; Zhu, Peifen
Source:
Journal of physical chemistry 2018 v.123 no.2 pp. 1406-1412
ISSN:
1932-7455
Subject:
fatty acid esters,   etc   ; byproducts; cesium; fatty acids; nanocrystals; optical properties; ovens; physical chemistry; saponification; temperature;     Show all 10 Subjects
Abstract:
... We report on a new synthesis process for halide perovskite nanoplatelets and nanoplates that switches the production process of the cesium precursor from a fatty acid/cesium salt reaction to a cesium base/fatty acid ester reaction, thus enabling the reaction to occur in ambient conditions in minutes instead of hours. The saponification precipitation process reported here, as a result, does not req ...
DOI:
10.1021/acs.jpcc.8b10636

19. Synthesis and Applications of a Novel 3,4-Bis(2-Fluoro-5-Trifluoromethyl Phenyl)-2,5-Diphenyl Phenyl Grafted Polysiloxane Stationary Phase

Author:
Wang, Bing; Liu, Jingchen; Li, Xu; Wu, Bo
Source:
Chromatographia 2018 v.81 no.8 pp. 1219-1229
ISSN:
0009-5893
Subject:
fatty acid esters,   etc   ; benzene; chemical bonding; gas chromatography; naphthalene; polyethylene; pyrolysis; silica; siloxanes; temperature; thermogravimetry;     Show all 11 Subjects
Abstract:
... A novel polyphenyl-grafted polysiloxane stationary phase named 3,4-bis(2-fluoro-5-(trifluoromethyl)phenyl)-2,5-diphenyl phenyl grafted polysiloxane stationary phase (FFMP) was synthesized through a Diels–Alder reaction with a high column efficiency (average number of plates: 3700 plates/m; achieved by naphthalene at 120 °C) and simultaneously coated on fused silica capillary tubes to prepare a gas ...
DOI:
10.1007/s10337-018-3556-7

20. Tribological properties of nano cellulose fatty acid esters as ecofriendly and effective lubricant additives

Author:
Zhang, Yanjuan; Wei, Liping; Hu, Huayu; Zhao, Zengyan; Huang, Zuqiang; Huang, Aimin; Shen, Fang; Liang, Jing; Qin, Yuben
Source:
Cellulose 2018 v.25 no.5 pp. 3091-3103
ISSN:
0969-0239
Subject:
fatty acid esters,   etc   ; additives; cellulose; friction; homogenization; liquids; lubricants; moieties; nanoparticles; oils; steel;     Show all 11 Subjects
Abstract:
... Three cellulose esters, cellulose acetate-butyrate, cellulose acetate-octanoate, and cellulose acetate-laurate, were synthesized by both conventional co-reactant reaction (CCR) and mechanical activation-assisted co-reactant reaction (MACR) methods, and the corresponding nano-cellulose esters were prepared by high pressure homogenization to comparatively investigate their tribological properties as ...
DOI:
10.1007/s10570-018-1780-9