Hexanol
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Comparative Study of Volatile Compounds in the Fruit of Two Banana Cultivars at Different Ripening Stages Open
Aromatic compounds are important for fruit quality and can vary among fruit cultivars. Volatile compounds formed during the ripening of two banana cultivars, Brazilian and Fenjiao, were determined using headspace solid-phase micro-extracti…
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Metabolic engineering of Clostridium ljungdahlii for the production of hexanol and butanol from CO2 and H2 Open
Background The replacement of fossil fuels and petrochemicals with sustainable alternatives is necessary to mitigate the effects of climate change and also to counteract diminishing fossil resources. Acetogenic microorganisms such as Clost…
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Synthetic co‐culture of autotrophic <i>Clostridium carboxidivorans</i> and chain elongating <i>Clostridium kluyveri</i> monitored by flow cytometry Open
Summary Syngas fermentation with acetogens is known to produce mainly acetate and ethanol efficiently. Co‐cultures with chain elongating bacteria making use of these products are a promising approach to produce longer‐chain alcohols. Synth…
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Hexanol biosynthesis from syngas by Clostridium carboxidivorans P7 – product toxicity, temperature dependence and in situ extraction Open
Clostridium carboxidivorans converts syngas into industrial alcohols like hexanol, but titers may be limited by product toxicity. Investigation of IC50 at 30 °C (17.5 mM) and 37 °C (11.8 mM) revealed increased hexanol tolerance at lower te…
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Amination of 1-hexanol on bimetallic AuPd/TiO<sub>2</sub>catalysts Open
AuPd/TiO2bimetallic catalysts, synthesized using controlled surface reactions, exhibit enhanced rates for amination of hexanol using ammonia compared to monometallic Au and Pd catalysts.
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Electrostatic Interactions between Barium Hexaferrite Nanoplatelets in Alcohol Suspensions Open
In a room-temperature liquid magnet, barium hexaferrite (BHF) nanoplatelets suspended in 1-butanol spontaneously order and form a ferromagnetic nematic phase. In such concentrated suspension, the nanoplatelets align in large macroscopic re…
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Utilization of Pentanol as Biofuels in Compression Ignition Engines Open
Of several higher alcohols such as pentanol, hexanol, octanol, decanol, dodecanol, phytol, and fusel oil, pentanol isomers have recently received remarkable attention as alternative fuels for diesel engines because they emit less greenhous…
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β-Mannanase-catalyzed synthesis of alkyl mannooligosides Open
β-Mannanases catalyze the conversion and modification of β-mannans and may, in addition to hydrolysis, also be capable of transglycosylation which can result in enzymatic synthesis of novel glycoconjugates. Using alcohols as glycosyl accep…
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Intensification of enzyme catalysed synthesis of hexyl acetate using sonication Open
This present study focuses on ultrasound assisted process intensification of hexyl acetate synthesis via lipozyme RMIM catalysed transesterification of hexanol with triacetin by using hexane as a solvent. Hexyl acetate, an ester with fruit…
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Continuous Production of Ethanol, 1-Butanol and 1-Hexanol from CO with a Synthetic Co-Culture of Clostridia Applying a Cascade of Stirred-Tank Bioreactors Open
Syngas fermentation with clostridial co-cultures is promising for the conversion of CO to alcohols. A CO sensitivity study with Clostridium kluyveri monocultures in batch operated stirred-tank bioreactors revealed total growth inhibition o…
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Pedologic Factors Affecting Virgin Olive Oil Quality of “Chemlali” Olive Trees (<i>Olea europaea</i> L.) Open
The aim of this study examined the characterization of extra virgin olive oil samples from the main cultivar Chemlali, grown in five olive orchards with different soil type (Sandy, Clay, Stony, Brown, Limestone and Gypsum). Volatile compou…
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Optimization of enzymatic esterification of dihydrocaffeic acid with hexanol in ionic liquid using response surface methodology Open
Finally, this study has produced an efficient enzymatic esterification method for the preparation of hexyl dihydrocaffeate in vitro using a lipase in an ionic liquid system. Concentration of hexanol was the most significant (p < 0.05) inde…
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Antibacterial Activity of Hexanol Vapor In Vitro and on the Surface of Vegetables Open
Hexanol is a volatile alcohol and a major component of plant essential oils (EOs). However, the antibacterial activity of hexanol vapor has not been well studied. This study aimed to evaluate the antibacterial activity of hexanol. In this …
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Copper and lanthanum mixed oxides as catalysts for ethanol <span>Guerbet</span> coupling: The role of La<sup>3+</sup> on the production of long‐chain alcohols Open
Mixed oxides derived from the calcination of modified hydrotalcites precursors with copper and lanthanum were synthetized by the co‐precipitation method and characterized and applied as catalysts for ethanol Guerbet coupling reactions. The…
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Optimizing the enzymatic production of biolubricants by the Taguchi method: Esterification of the free fatty acids from castor oil with 2-ethyl-1-hexanol catalyzed by Eversa Transform 2.0 Open
The solvent-free esterification of the free fatty acids (FFAs) obtained by the hydrolysis of castor oil (a non-edible vegetable oil) with 2-ethyl-1-hexanol (a branched fatty alcohol) was catalyzed by different free lipases. Eversa Transfor…
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Measuring and Predicting the Extraction Behavior of Biogenic Formic Acid in Biphasic Aqueous/Organic Reaction Mixtures Open
The distribution coefficients and selectivities required for extraction purposes were predicted with a thermodynamic equation of state for the ternary system formic acid/water/extraction solvent. These predictions were validated with exper…
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Analysis of the Differences in Volatile Organic Compounds in Different Rice Varieties Based on GC-IMS Technology Combined with Multivariate Statistical Modelling Open
In order to investigate the flavour characteristics of aromatic, glutinous, and nonaromatic rice, gas chromatography–ion mobility spectrometry (GC-IMS) was used to analyse the differences in volatile organic compounds (VOCs) amongst differ…
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Extraction Rate and Energy Efficiency of Supercritical Carbon Dioxide Recovery of Higher Alcohols from Dilute Aqueous Solution Open
New biotechnologies have been developed to produce higher alcohols, including various isomers of butanol, pentanol, and hexanol. The thermodynamic properties of higher alcohols—i.e., low volatility and moderate water solubility—make them g…
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Purification and characterization of a novel glutamate dehydrogenase from Geotrichum candidum with higher alcohol and amino acid activity Open
Crude enzyme from Geotrichum candidum S12 exhibited high activity towards hexanol at pH 4.0, distinguishing it from currently known enzymes. To identify the dominant enzyme contributing to this activity, the crude enzyme extract was separa…
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Molecular basis for potentiation of Cx36 gap junction channel conductance by<i>n</i>-alcohols and general anesthetics Open
In our recent study, we have demonstrated that short carbon chain n-alcohols (up to octanol) stimulated while long carbon chain n-alcohols inhibited the conductance of connexin (Cx) 36 (Cx36) gap junction (GJ) channels. In contrast, GJ cha…
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Transition Metal-Promoted Mg-Fe Mixed Oxides for Conversion of Ethanol to Valuable Products Open
The conversion of ethanol into petrochemicals, such as ethyl and butyl acetate, butanol, hexanol, and so forth was studied. The conversion was catalyzed by Mg-Fe mixed oxide modified with a second transition metal (Ni, Cu, Co, Mn, or Cr). …
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Genomic insights into apple aroma diversity Open
An apple's aroma is a major determinant of its desirability by consumers. To better understand the aroma of apples, 2-dimensional gas-chromatography mass-spectrometry (2D-GCMS) was used to quantify 106 volatile organic compounds (VOCs) fro…
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A multi-faceted approach to probe organic phase composition in TODGA systems with 1-alcohol phase modifiers Open
The effect of varying 1-alcohol alkyl chain length on extraction of lanthanides (Lns), H 2 O, and H + was studied with tetraoctyl diglycolamide (TODGA) via solvent extraction coupled with FT-IR investigations.
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Explorative Study on Volatile Organic Compounds of Cinnamon Based on GC-IMS Open
Cinnamon is one of the most popular spices worldwide, and volatile organic compounds (VOCs) are its main metabolic products. The misuse or mixing of cinnamon on the market is quite serious. This study used gas chromatography-ion migration …
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β-Phenethanol and n-hexanol in wines: Influence of yeast starin, grape variety and other factors; and taste thresholds Open
β-Phenethanol and n-hexanol were measured by gas chromatography in a wide range of commercial and experimental wines. Commercial wines ranged from 5 to 74 ppm β-phenethanol and 1.3 to 12 ppm n-hexanol. Dry red wines and fino sherries were …
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Influence of Harvest Date and Grape Variety on Sensory Attributes and Aroma Compounds in Experimental Icewines of Ukraine Open
Icewine is a sweet dessert wine whose sensory and chemical attributes are caused by technology peculiarities including the special climatic conditions and acceptable grape varieties. This study aimed to evaluate the sensory characteristics…
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Flash point prediction of binary partially and totally miscible alcohol-water mixtures by various equation of states and experimental validation Open
In the present article, the experimental flash points (FPs) of partially miscible and non-ideal mixtures including 3-pentanol + water, 2-pentanol + water, and 1-hexanol + water are reported for the first time. The measured FPs were predict…
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Investigation of 1-Hexanol Diesel Blends on Performance, Combustion and Emission Characteristics of a Diesel Engine Open
The most potential long-term and renewable substitute of mineral diesel are biofuels. The growth and degradation of energy resources have an enormous influence on the long-term viability of the human community. Alcohols are gaining promine…
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The Composition of Volatiles and the Role of Non-Traditional LOX on Target Metabolites in Virgin Olive Oil from Autochthonous Dalmatian Cultivars Open
The lipoxygenase pathway has a significant influence on the composition of the volatile components of virgin olive oil (VOO). In this work, the influence of the maturity index (MI) on the activity of the lipoxygenase enzyme (LOX) in the fr…
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Densities, Viscosities, and Derived Properties for Binary Mixtures of Long-Chain Alcohols of 1-Hexanol + 1-Pentanol, + 2-Pentanol, + 2-Methyl-1-butanol, + 1-Heptanol, and + 1-Octanol from 288.15 to 338.15 K Open
Densities and viscosities for binary mixtures of long-chain alcohols are important to design transfer heat and mass equipment and to interpret the kind of interactions that occur in the studied blends. Current investigation indicated the m…