Results 11 to 20 of about 134,858 (161)

Bleaching of chlorophylls by UV irradiation in vitro: the effects on chlorophyll organization in acetone and n-hexane [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
The stability of chlorophylls toward UV irradiation was studied by Vis spectrophotometry in extracts containing mixtures of photosynthetic pigments in acetone and n-hexane.
JELENA ZVEZDANOVIC, DEJAN MARKOVIC
doaj   +3 more sources

Comparison between ethanol and hexane for oil extraction from Quercus suber L. fruits

open access: yesGrasas y Aceites, 2003
The aim of this study was to (i) evaluate the feasibility of replacing n-hexane with ethanol for the extraction of oil from Quercus suber fruits and (ii) optimize, at lab scale, sample preparation and extraction time for both solvents used (n-hexane vs ...
Suzana Ferreira-Dias   +2 more
doaj   +1 more source

2-Methyloxolane as a Bio-Based Solvent for Green Extraction of Aromas from Hops (Humulus lupulus L.)

open access: yesMolecules, 2020
The potential of using the bio-based solvent 2-methyloxolane, also known as 2-methyltetrahydrofuran or 2-MeTHF, as an alternative to petroleum solvents such as hexane, was investigated for the extraction of volatile compounds from hop cones (Humulus ...
Vincent Rapinel   +7 more
doaj   +1 more source

Mechanism of Hexane Displaced by Supercritical Carbon Dioxide: Insights from Molecular Simulations

open access: yesMolecules, 2022
Supercritical carbon dioxide (sCO2) has great potential for displacing shale oil as a result of its high solubility and low surface tension and viscosity, but the underlying mechanisms have remained unclear up to now.
Jiasheng Song, Zhuangying Zhu, Lang Liu
doaj   +1 more source

Rhaphiolepis indica Fruit Extracts for Control Fusarium solani and Rhizoctonia solani, the Causal Agents of Bean Root Rot

open access: yesSeparations, 2023
Numerous strategies have been suggested to reduce dependence on synthetic products, such as physical, microbial, and natural methods. Among the natural remedies, plant extracts have emerged as a popular option owing to their eco-friendly character, ease ...
Ahmed A. Heflish   +5 more
doaj   +1 more source

Влияние концентрации н-гексана на изменение плотности и теплопроводности подсолнечного масла

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
It should be noted that in recent years, solutions with liquid components have a very wide distribution in the art and are used in many industrial processes, heat exchanging devices.

doaj   +1 more source

Effects of Air Excess Ratio on Combustion and Engine Performance in a Homogeneous Charge Compression Ignition Engine fuelled with Hexane and N-Heptane Fuel Mixtures [PDF]

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2020
Homogeneous charge compression ignition engines are engines with low temperature combustion tendency and high thermal efficiency. The operating range of these engines, where there is no direct control over combustion, is limited because of knock and ...
Emre YILMAZ
doaj   +1 more source

Extraction of sweet and hot pepper and paprika oleoresin II. Hazards and critical control points and commercial requirements

open access: yesGrasas y Aceites, 2007
This paper reviews the hazards analysis and critical control points (HACCP) for the conventional extraction of paprika oleoresin, a product with potential to be produced in Africa and South America.
J. Pablo Fernández-Trujillo
doaj   +1 more source

Using Aerosol OT in Hexane Solution to Synthesize Calcium Nitrate Self-Healing Refined Microcapsules for Construction Applications

open access: yesBuildings, 2022
The micro-encapsulation procedure of calcium nitrate in urea-formaldehyde shell is well known. The most recent developed method for the synthesis of the calcium nitrate self-healing micro-capsules was based on the in-situ polymerization using water-in ...
Ala Abu Taqa   +3 more
doaj   +1 more source

Solvent solutions: comparing extraction methods for edible oils and proteins in a changing regulatory landscape. General introduction☆

open access: yesOilseeds and fats, crops and lipids
Hexane is currently the dominant solvent in the oil extraction industry, valued for its efficiency, low cost, and ability to preserve the quality of oils and proteins.
Carré Patrick   +4 more
doaj   +1 more source

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