Effects of supercritical CO2 extraction parameters on soybean oil yield

This work is intended to determine what effects the characteristic particle size, moisture content and initial oil content have on the supercritical fluid extraction of paprika ( Capsicum annuum L.). The extraction efficiency was defined as the yield obtained using supercritical carbon-dioxide divided by the yield obtained by Soxhlet-extraction with n -hexane. For describing the extraction efficiency curves the Sovova model was chosen. It was observed that a decrease in particle size resulted in an increase in extraction efficiency. The oil was easily removed from milled samples with characteristic particle sizes between 0.1 and 0.7 mm. Moisture content between 7 and 18% had negligible effect on extractability of oil. However, above 18% moisture level the presence of water affected the extraction, by increasing the moisture content the efficiency decreased. As for changing the oil content, different mixtures of seeds and fruit were investigated. In the range of 5–10% oil content a positive effect was found, while above these values an increase in the oil content has no significant effect on the efficiency of supercritical fluid extraction.

Effects of particle size distribution, moisture content, and initial oil content on the supercritical fluid extraction of paprika

Separation of squalene from Amaranthus paniculatus using supercritical carbon dioxide extraction (SC-CO2) technology and optimization of its process parameters such as temperature, pressure, time of extraction, flow rate of carbon dioxide, and batch size have been conducted. The optimized conditions that provided the best yield of squalene were a sample size of 40 g of amaranth grains of particle diameter of 0.75 mm at a temperature of 100°C and pressure of 550 bar for 1.5 h extracting time at a flow rate of 0.2 L min−1 of carbon dioxide. Solubility of squalene in SC-CO2 under different operating conditions has also been evaluated using Chrastil equation which showed good agreement with the experimentally obtained yields. Various statistical analyses (regression equations, t test, and analysis of variance) conducted on the extraction parameters concluded that extraction pressure, time and sample batch size have significant effect on the yield of the squalene whereas extraction temperature and particle diameter do not. The results obtained are in accordance to the basic principle of supercritical fluid-phase equilibrium behavior and the solubility isobar and isotherm obtained showed similar trends with those reported for squalene. Using dimensionless numbers, an empirical correlation was also deduced for characterization of the extraction process of squalene in SC-CO2.

Supercritical Carbon Dioxide Extraction of Squalene from Amaranthus paniculatus : Experiments and Process Characterization

Characterization of packed beds of plant materials processed by supercritical fluid extraction

Liquid–vapor surface tension (ST) in nanopores attracts great attention in many industries because of the prosperity of nanoscience and nanotechnology. Here, considering the important emerging new ...

Nanoconfinement Effect on Surface Tension: Perspectives from Molecular Potential Theory.

Evaluation of the parameters of the Bender equation of state for low acentric factor fluids and carbon dioxide

Simple correlations for saturated liquid and vapor densities of pure fluids

A new 3-parameter attraction term for the Soave-Redlich-Kwong equation of state, that ensures a correct physical behaviour, is proposed to improve its predictive capabilities, particularly in the supercritical region and in the gas phase. Vapour pressure and second virial coefficient data for a set of eight pure fluids with a low acentric factor co (Ar, Ne, Kr, O 2 , N 2 , C-H 4 , CO and C 2 -H 6 ) are used to determine the equation's adjustable parameters. When only vapour pressure data are considered the supercritical region is poorly described. An extension of the data base by including for instance the second virial coefficient data leads to a significant improvement in the description of the sub and supercritical regions of the considered fluids and particularly in the prediction of the joule-Thomson inversion curves. The new attraction term is shown to be suitable for other pratical fluids like hydrocarbons as well as their mixtures.

New Attraction Term for the Soave-Redlich-Kwong Equation of State

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

O. Chouaieb

Author Tools

Chat about Author

Papers

Evaluation of the parameters of the Bender equation of state for low acentric factor fluids and carbon dioxide

Simple correlations for saturated liquid and vapor densities of pure fluids

New Attraction Term for the Soave-Redlich-Kwong Equation of State