Health & Environmental Research Online (HERO)


Fatty alcohols (112-92-5, 661-19-8, 629-96-9, & 143-28-2)


548 References Were Found:

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Predictable Oxygen Isotope Exchange Between Plant Lipids and Environmental Water: Implications for Ecosystem Water Balance Reconstruction

Authors: Maxwell, TM; Silva, LCR; Horwath, WR (2018) HERO ID: 4944424

[Less] In this study, we present the first evidence for predictable exchange of oxygen isotopes between water . . . [More] In this study, we present the first evidence for predictable exchange of oxygen isotopes between water and lipid compounds. Using laboratory incubations with aliphatic alcohols, hexadecanol and eicosanol, and bulk soil lipid extracts in isotopically enriched water for 160 days, we determined the magnitude and direction of exchange rates for bulk and compound‐specific lipid extracts. Our data show that δ18O ratios of long‐chain aliphatic lipids that persist in hydrophobic portions of soil organic matter integrate the signature of plant water δ18O values, which can be used to reconstruct hydrologic shifts in terrestrial systems. For bulk lipid extracts, equilibrium was reached, indicating that 22% of its oxygen content is exchangeable with a half‐life of 0.13 years. Incubations with the same bulk lipid extracts in contact with iron oxyhydroxide minerals showed no difference in exchange rates, although the exchangeable fraction decreases to 19% of the total. This result suggests that mineral surfaces can inhibit oxygen exchange for some oxygen‐containing functional groups. In contrast, pure compounds showed stable oxygen isotope signatures with no exchange under the same conditions. Taken together, these findings represent a significant development in the mechanistic understanding and application of oxygen isotopes in plant‐ and soil‐derived lipids, toward a path for the use of lipid extracts in reconstructions of ecosystem water balance. Plain Language SummaryThis work reports on the fundamental chemistry of compounds deposited into soil by plants. These compounds are interesting to us as measurements of their isotopic composition reveal water availability and stress of plants that produced them. Thus, from these compounds, it is possible to gain understanding of water regime shifts over time and space in an ecosystem. However, this is only possible given some assumptions, primarily that these compounds retain their chemical and isotopic composition long after deposition. This research reports new data that show that some compounds of interest meet this assumption for practical applications paving the way for a new way to study how natural systems respond to changes in environmental water.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

RIFM fragrance ingredient safety assessment, (Z)-Octadec-9-enol, CAS Registry Number 143-28-2

Authors: Api, AM; Belsito, D; Botelho, D; Bruze, M; Burton, GA; Buschmann, J; Dagli, ML; Date, M; Dekant, W; Deodhar, C; Francis, M; Fryer, AD; Jones, L; Joshi, K; La Cava, S; Lapczynski, A; Liebler, DC; O'Brien, D; Patel, A; Penning, TM; Ritacco, G; Romine, J; Sadekar, N; Salvito, D; Schultz, TW; Sipes, IG; Sullivan, G; Thakkar, Y; Tokura, Y; Tsang, S (2018) Food and Chemical Toxicology 118:S156-S161. HERO ID: 4929246

[Less] Highlights: • (Z)-Octadec-9-enol, safety assessment based on RIFM's criteria. • Safety assessment . . . [More] Highlights:
• (Z)-Octadec-9-enol, safety assessment based on RIFM's criteria.
• Safety assessment based on 7 human health endpoints plus environmental.
• All endpoints were cleared using target data, read-across, and/or TTC.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Synthesis of bioactive compounds from vermicast isolated actinomycetes species and its antimicrobial activity against human pathogenic bacteria

Authors: Balachandar, R; Karmegam, N; Saravanan, M; Subbaiya, R; Gurumoorthy, P (2018) Microbial Pathogenesis 121:155-165. HERO ID: 4929239

[Less] The present study was aimed to evaluate the antimicrobial activities of bioactive compounds synthesized . . . [More] The present study was aimed to evaluate the antimicrobial activities of bioactive compounds synthesized from vermicast isolated actinomycetes species. Specifically, the synthesized bioactive compounds were evaluated for their antimicrobial activity against selected Gram + ve and Gram - ve human pathogenic bacteria including Staphylococcus aureus, Bacillus circulans, Bacillus subtilis, Pseudomonas aeruginosa, and Escherichia coli. Interestingly, a total of five different actinomycetes species were recovered from vermicasts. More interestingly, among these potential actinomycetes species, the bioactive compounds synthesized by isolate AS9 showed a significant antibacterial activity and its mean zone of inhibition was found at 11.3 ± 1.6 mm, 9.5 ± 0.91 mm, and 9.9 ± 1.71mm against S. aureus, B. subtilis, and B. circulans, respectively. Furthermore, according to antibacterial activity and spectrum broadness, three of the actinomycetes strains were selected and characterized by conventional methods. Subsequently, the bioactive compound profiling of these isolated actinomycetes strains performed through GC-MS analysis indicating the presence of the bioactive compounds including 3, octadecene (E), behnic alcohol phenol, 2,4-bis(1,1-dimethyl ethyl) 1-nonadecene, 1-heneicosanol, milbemycin 3-eicosene (E), and 1-docosanol.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Hypoglycemic efficacy of docking selected natural compounds against α-glucosidase and α-amylase

Authors: Riyaphan, J; Jhong, CH; Lin, SR; Chang, CH; Tsai, MJ; Lee, DN; Sung, PJ; Leong, MK; Weng, CF (2018) Molecules 23. HERO ID: 4929247

[Less] The inhibition of α-glucosidase and α-amylase is a clinical strategy for the treatment of type II diabetes, . . . [More] The inhibition of α-glucosidase and α-amylase is a clinical strategy for the treatment of type II diabetes, and herbal medicines have been reported to credibly alleviate hyperglycemia. Our previous study has reported some constituents from plant or herbal sources targeted to α-glucosidase and α-amylase via molecular docking and enzymatic measurement, but the hypoglycemic potencies in cell system and mice have not been validated yet. This study was aimed to elucidate the hypoglycemic efficacy of docking selected compounds in cell assay and oral glucose and starch tolerance tests of mice. All test compounds showed the inhibition of α-glucosidase activity in Caco-2 cells. The decrease of blood sugar levels of test compounds in 30 min and 60 min of mice after OGTT and OSTT, respectively and the decreased glucose levels of test compounds were significantly varied in acarbose. Taken altogether, in vitro and in vivo experiments suggest that selected natural compounds (curcumin, antroquinonol, HCD, docosanol, tetracosanol, rutin, and actinodaphnine) via molecular docking were confirmed as potential candidates of α-glucosidase and α-amylase inhibitors for treating diabetes.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

A PTX/nitinol stent combination with temperature-responsive phase-change 1-hexadecanol for magnetocaloric drug delivery: Magnetocaloric drug release and esophagus tissue penetration

Authors: Jin, Z; Wu, K; Hou, J; Yu, K; Shen, Y; Guo, S (2018) Biomaterials 153:49-58. HERO ID: 4929267

[Less] An antitumor drug/esophagus stent combination can palliatively relieve malignant esophageal stricture . . . [More] An antitumor drug/esophagus stent combination can palliatively relieve malignant esophageal stricture and exert local chemotherapy to cancer. It is vital for effective treatment of cancer to control drug release and facilitate drug penetration into deep tissue after the combination is placed in the malignant strictured esophagus part. In this study, we firstly designed and prepared a novel antitumor drug/esophagus stent combination: a magnetocaloric nitinol stent coated with a bilayered film that consisted of one ethylene-vinyl acetate copolymer (EVA) layer as drug blocking layer and one EVA layer containing 10% paclitaxel (PTX) and 30% temperature sensitive phase-change fatty alcohol (1-tetradecanol, 1-hexadecanol or 1-octadecanol). The drug release and penetration into rabbit esophagus wall from the combination were investigated. It was found that, under an alternating electromagnetic field at a power of 0.1 kW, the combination was heated to 43 °C, the PTX was faster and more released from the combination, as well as the amount of PTX in esophagus tissue or its deep muscle tissue penetrated from the combination was much higher than that without alternating electromagnetic field. The pathological data showed that the combination was biocompatible and safe after placement in rabbit esophagus even under an alternating electromagnetic field. Overall, the PTX could be magnetocalorically released and effectively penetrated into esophagus wall from the PTX/nitinol stent combination.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

A directional entrapment modification on the polyethylene surface by the amphiphilic modifier of stearyl-alcohol poly(ethylene oxide) ether

Authors: Lu, Q; Chen, Yi; Huang, J; Huang, J; Wang, X; Yao, J (2018) HERO ID: 4580873

[Less] A novel entrapment modification method involving directional implantation of the amphiphilic modifier . . . [More] A novel entrapment modification method involving directional implantation of the amphiphilic modifier of stearyl-alcohol poly(ethylene oxide) ether (AEO) into the high-density polyethylene (HDPE) surface is proposed. This modification technique allows the AEO modifier to be able to spontaneously attain and subsequently penetrate into the swollen HDPE surface with its hydrophobic stearyl segment, while its hydrophilic poly(ethylene oxide) (PEO) segment spontaneously points to water. The AEO modifier with a HLB number below 8.7 was proved appropriate for the directional entrapment, Nevertheless, AEOs with larger HLB numbers were also effective modifiers in the presence of salt additives. In addition, a larger and hydrophobic micelle, induced respectively by the AEO concentration above 1.3 x 10(2) mol/L and the entrapping temperature above the cloud point of AEO, could lead to a sharp contact angle decline of the modified surface. Finally, a hydrophilic HDPE surface with the modifier coverage of 38.9% was reached by the directional entrapment method, which is far larger than that of 19.2% by the traditional entrapment method. (C) 2018 Elsevier B.V. All rights reserved.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Volatile oil composition of Carthamus Tinctorius L. flowers grown in Kazakhstan

Authors: Turgumbayeva, AA; Ustenova, GO; Yeskalieva, BK; Ramazanova, BA; Rahimov, KD; Aisa, H; Juszkiewicz, KT (2018) Annals of Agricultural and Environmental Medicine 25:87-89. HERO ID: 4929234

[Less] INTRODUCTION: Carthamus tinctorius L. is commonly known as Safflower. C. . . . [More] INTRODUCTION: Carthamus tinctorius L. is commonly known as Safflower. C. tinctorius extracts and oil are important in drug development with numerous pharmacological activities in the world. This plant is cultivated mainly for its seed which is used as edible oil. For a long time, C. tinctorius has been used in traditional medicines as a purgative, analgesic, antipyretic and an antidote to poisoning. It is a useful plant in painful menstrual problems, post-partum haemorrhage and osteoporosis.

OBJECTIVE: The subject of this study is the seeds of Kazakhstan species of 'Akmai' safflower, collected in the flowering stage in Southern Kazakhstan. Volatile oil was carry out to study the component composition of Kazakhstan 'AkMai' safflower flowers.

MATERIALS AND METHOD: Pale yellow oily extracts were obtain by varying the process parameters. The volatile oil obtained by hydrodistillation of the petals Carthamus tinctorius L. was analyzed by gas chromatography/mass spectrometry (GC/MS). The yield of the oil was 0.175 % (v/w). 20 compounds representing 99.81% of the oil were characterized. The volatile oil was found to be rich in undecanoic acid, octane, 2-nonen -1-ol, hexadecanal, dodecanal, dec-2-en-1-ol, nonanoic acid, tetradecanoic acid, 2 pentadecanone, 6,10,14-trimethyl, 1,2-benzenedicarboxylic acid, isobutyl-beta-phenylpropionate, 1.3-cyclohexadiene, myrtenoic acid, octadecanoic acid, heneicosanoic acid, 2(3H)-furanone, 4,4-dipropylheptane, hexcosane,1-eicosanol, as well as heptocosane.

RESULTS: Volatile oil from the flowers of the Kazakhstan safflower species 'Ak-Mai' were investigated by GC/MS which allowed the detection of 20 compounds. Biologically active complex of the flower of the Kazakhstan safflower species 'Ak-Mai' was released for the first time by using this oil.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Form-stable phase change nanocomposites for thermal energy storage based on hypercrosslinked polymer nanospheres

Authors: Fu, X; Liu, Y; Jiang, X; Wang, Q; Luo, Y; Lyu, Y (2018) HERO ID: 4937110

[Less] Two kinds of hypercrosslinked polymer nanospheres (HCPNs), which were synthesized via Friedel-Crafts . . . [More] Two kinds of hypercrosslinked polymer nanospheres (HCPNs), which were synthesized via Friedel-Crafts and Scholl coupling reactions, were used as porous matrix to prepare form-stable phase change materials nanocomposites (HCPNs-PCMs). Owing to the large BET surface area and the strong hydrophobicity of HCPNs, PCMs (palmitic acid and 1-octadecanol) can be absorbed spontaneously into HCPNs. The properties of HCPNs-PCMs have been characterized via scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (MIR). The DSC results showed that the HCPNs-PCMs had latent heats of 111.8 -134.9 J g(-1). The mass fraction of PCMs in HCPNs-PCMs ranged from 71.4 wt% to 74.5 wt%. After 300 melting and freezing cycles, the nanocomposites maintained their phase transition properties perfectly, indicating excellent recyclability and high thermal stability.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Direct Selective Hydrogenation of Fatty Acids and Jatropha Oil to Fatty Alcohols over Cobalt-Based Catalysts in Water

Authors: Jia, W; Xu, G; Liu, X; Zhou, F; Ma, H; Zhang, Y; Fu, Yao (2018) HERO ID: 4937297

[Less] Inedible natural oils are desired resources for renewable fuel and chemical production. Herein, a nonprecious . . . [More] Inedible natural oils are desired resources for renewable fuel and chemical production. Herein, a nonprecious metal cobalt catalytic system was developed for selectively hydrogenating fatty acids and natural oil into fatty alcohols or long chain alkanes. The cobalt-based catalysts were prepared by a wet-impregnation method with a series of supports including HZSM-5, CeO2, ZrO2, SiO2, Al2O3, TiO2, and hydroxyapatite (HAP) for hydrogenating stearic acid. Among these catalysts, Co/HAP exhibited the highest activity and 97.1% yield of 1-octadecanol was obtained at 190 degrees C and 4 MPa H-2 in water. Additionally, the Co/HAP was capable of directly hydrogenating the natural oil, Jatropha oil, to fatty alcohols without any preprocessing, and 83.1 wt % yield of alcohols could be achieved at 190 degrees C and 4 MPa H-2 in water. Co/HAP could also catalyze the complete conversion of stearic acid and Jatropha oil to long-chain alkanes when dodecane was used as solvent. X-ray power diffraction, transmission electron microscopy, H-2 temperature-programmed reduction, and NH3 temperature-programmed desorption were carried out, and the high catalytic activity of Co/HAP could be due to its desired acidity, cobalt particle dispersion, and stronger metal support interaction. The Fourier transform infrared results indicated that the high efficiency of Co/HAP could also be due to the absorption of fatty acid on the surface of catalyst which thus promoted the hydrogenation process over Co species. The possible reaction pathway was also proposed according to the conversion process tracking of stearic acid.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Graphene Aerogels Enhanced Phase Change Materials prepared by one-pot method with high thermal conductivity and large latent energy storage

Authors: Liu, Lin; Zheng, Ke; Yan, Y; Cai, Z; Lin, S; Hu, X (2018) Solar Energy Materials and Solar Cells 185 (Oct 2018):487. HERO ID: 4942219

[Less] Phase change Materials (PCMs) have a promising future in the energy fields of latent heat storage, solar . . . [More] Phase change Materials (PCMs) have a promising future in the energy fields of latent heat storage, solar energy conversion and building thermal management. In this work, two types of reduced graphene oxide (rGO) with different diameters were prepared and combined with paraffin, octadecanol and stearic acid PCMs, respectively. The one-pot hydrothermal method was employed for the synthesis of three-dimensional graphene network encapsulating organic PCMs. There is some research investigate that rGO addition has different degrees of impact on the latent heat and thermal conductivity of different kinds of organic PCMs. The rGO/PCM composite has a significantly enhanced thermal conductivity of 3.21 W m−1 K−1 with an rGO loading of 10 wt%. Furthermore, a fraction of graphene was substituted by Ag nanoparticles. The thermal conductivity of rGO/PCM/Ag could be as high as 5.89 W m−1 K−1. The size effect of rGO has a significant influence on the thermal contact resistance. The synergistic effect of rGO network and Ag nanoparticles also benefits the thermal conductivity of nano-enhanced phase change materials (NePCMs).