scholarly journals Study of the Kinetics of Extraction Process for The Production of Hemp Inflorescences Extracts by Means of Conventional Maceration (CM) and Rapid Solid-Liquid Dynamic Extraction (RSLDE)

Separations ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 20 ◽  
Author(s):  
Monica Gallo ◽  
Andrea Formato ◽  
Martina Ciaravolo ◽  
Gaetano Formato ◽  
Daniele Naviglio
Keyword(s):  
High Performance ◽  
Solid Material ◽  
Extraction Process ◽  
Extraction Yield ◽  
Amount Of Substance ◽  
Cannabidiolic Acid ◽  
Before And After ◽  
Dynamic Extraction ◽  
Solid Liquid ◽  
Kinetics Of

In the present work, the kinetics of the extraction process from female inflorescences of Canapa sativa subsp. sativa var. sativa were studied, on the basis of determination of the content of cannabinoids: cannabidiolic acid (CBDA), Δ9-tetrahydrocannabinolic acid (THCA), cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC), before and after decarboxylation in the oven, in order to evaluate the possible use of the hemp extract obtained in the food sector. Therefore, both conventional maceration (CM) and rapid solid-liquid dynamic extraction (RSLDE), also known as cyclically pressurized extraction (CPE), were carried out, using parts of the plant approximately of the same size. The alcoholic extracts thus obtained were analyzed by high-performance liquid chromatography (HPLC) in order to calculate the percentages of cannabinoids present in the inflorescences and thus be able to evaluate the degree of decarboxylation. Furthermore, the extracts were dried to calculate the percentage of solid material present in it, that was made mainly by cannabinoids. The amount of substance extracted from the inflorescences was about 10% (w/w), for both cases considered. Therefore, the extraction yield was the same in the two cases examined and the final qualities were almost identical. However, the extraction times were significantly different. In fact, the maceration of hemp inflorescences in ethyl alcohol was completed in no less than 24 h, while with the RSLDE the extraction was completed in only 4 h. Finally, for a better understanding of the extraction process with cyclically pressurized extraction, a numerical simulation was carried out which allowed to better evaluate the influence of extractive parameters.

scholarly journals Removal of Tetracycline from Aqueous Solution Using Nanocomposite Based on Polyanion-Modified Laterite Material

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Thi Hau Vu ◽  
Thi Mai Viet Ngo ◽  
Thi Tu Anh Duong ◽  
Thi Hien Lan Nguyen ◽  
Xuan Truong Mai ◽  
...  
Keyword(s):  
High Performance ◽  
Polystyrene Sulfonate ◽  
Bet Method ◽  
Before And After ◽  
Pseudo Second Order ◽  
Ft Ir ◽  
Solid Liquid ◽  
Kinetics Of ◽  
And Diffusion ◽  
Good Agreement

This work investigated the removal of antibiotic tetracycline (TC) from wastewater using nanocomposite material based on laterite modified with polyanion, polystyrene sulfonate (PSS). The effective factors influenced on the TC removal using nanocomposite PSS-modified laterite (NCPML) were optimized and found to be pH 4, solid-liquid ratio 5 mg/mL, and contact time 180 min. The highest removal of TC reached about 88% under the optimum adsorption conditions. The adsorption isotherm and kinetics of TC adsorption onto NCPML were in good agreement with the Langmuir and pseudo-second-order models, respectively. The characteristics of the NCPML material before and after TC adsorption were examined by zeta (ζ) potential measurements, Brunauer–Emmett–Teller (BET) method, and Fourier transform infrared spectroscopy (FT-IR). The TC adsorption onto NCPML was induced by electrostatic interaction, hydrogen bonding, and diffusion interaction. The TC removal from wastewater was approximately 94% while efficiency still reached 66% after five regenerations. Our research reveals that NCPML is a high-performance adsorbent for TC removal from wastewater.

scholarly journals Rapid Solid-Liquid Dynamic Extraction (RSLDE): A Powerful and Greener Alternative to the Latest Solid-Liquid Extraction Techniques

Foods ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 245 ◽  
Author(s):  
Daniele Naviglio ◽  
Pierpaolo Scarano ◽  
Martina Ciaravolo ◽  
Monica Gallo
Keyword(s):  
Solid Material ◽  
Environmental Safety ◽  
Production Quality ◽  
Liquid Extraction ◽  
Solid Matrix ◽  
Extraction Techniques ◽  
Dynamic Extraction ◽  
Solid Liquid Extraction ◽  
Solid Liquid ◽  
By Products

Traditionally, solid-liquid extractions are performed using organic and/or inorganic liquids and their mixtures as extractant solvents in contact with an insoluble solid matrix (e.g., the Soxhlet method) or using sequential atmospheric pressure systems that require long procedures, such as maceration or percolation. The objective of this procedure is the extraction of any compounds that can be carried out from the inner solid material to the outlet, resulting in a solution containing colorants, bioactive compounds, odorous substances, etc. Over the years, in the extraction techniques sector, there have been many important changes from the points of view of production, quality, and human and environmental safety due to improvements in technology. In more recent times, the interest of the scientific community has been aimed at the study of sustainable processes for the valorization of extracts from vegetables and food by-products, through the use of non-conventional (innovative) technologies that represent a valid alternative to conventional methods, generally through saving time and energy and the formation of fewer by-products. Therefore, with the development of principles based on the prevention of pollution, on a lower risk for human health, and on a low environmental impact, new systems have been implemented to reduce extraction times and solvent consumption, to improve efficiency, and to increase the productivity of the extracts. From this point of view, rapid solid-liquid dynamic extraction (RSLDE), performed using the Naviglio extractor, compared to traditional applications, is a technique that is able to reduce extraction times, generally leads to higher yields, does not require heating of the system, allows one to extract the active ingredients, and avoids their degradation. This technique is based on a new solid-liquid extraction principle named Naviglio’s principle. In this review, after reviewing the latest extraction techniques, an overview of RSLDE applications in various research and production sectors over the past two decades is provided.

scholarly journals Effect of particle sizes and sodium hydroxide concentrations on silica extraction from minerals obtained in Kalirejo village, Kokap, Kulonprogo, Yogyakarta

Eksergi ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 29
Author(s):  
Tutik Muji Setyoningrum ◽  
Wibiana Wulan Nandari ◽  
Sri Wahyu Murni ◽  
Muhamad Maulana Azimatun Nur
Keyword(s):  
Particle Size ◽  
Glass Ceramics ◽  
Extraction Process ◽  
Extraction Yield ◽  
Liquid Extraction ◽  
Refining Process ◽  
Particle Sizes ◽  
Small Communities ◽  
Solid Liquid

Silica is mainly used in the production of rubber, glass, cement, glass, ceramics, paper, cosmetics, electronics, paintings, healthcare and other industries. Kalirejo village has a potential abundant resource of silica minerals. However, to refine it, high cost of extraction should be done to obtain high purity of silica. Different refining methods influence different purity of the silica. The purpose of this research was to study the refining process of mineral rock silica from Kalirejo village, Kokap, Kulonprogo by emplying simple and cheap solid-liquid extraction. Extraction was done by varying the particle size at 100 - 200 mesh, while NaOH concentration was varied in 0.5 N to 5 N.  Results showed that minerals taken from Kalirejo village was dominated by silica (23%).  The largest extract (4.89 gram) was obtained at 200 mesh and using NaOH 5 N with yield of 15.07%. Higher NaOH and higher particle size enhanced the extraction yield. This finding could help small communities in Kalirejo village to enhance the quality of silica by employing simple and cheap extraction process.

scholarly journals Determining the Optimum Conditions for Extracting Carotenoids from Syrian Apricot Fruits

2021 ◽  
pp. 11-20
Author(s):  
Wahbi Kalook ◽  
Adib Faleh ◽  
Amir Al-Haj Sakur ◽  
Wassim Abdelwahed
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Extraction Process ◽  
Extraction Methods ◽  
Extraction Yield ◽  
Extraction Temperature ◽  
Optimum Temperature ◽  
Optimum Conditions ◽  
Total Carotenoids ◽  
Β Carotene

The aim of this research is to extract carotenoids from apricot fruits using a food solvent (ethanol) and a non-food solvent (propanol). In addition, it aims to study the effect of different extraction conditions, i.e., the extraction temperature (20-40-60)°C and the extraction times (4-8-12) hours, on the carotenoids yield in order to improve and develop extraction methods. The extracted carotenoids were determined using high-performance liquid chromatography (HPLC), and the studied carotenoids are α-carotene and β-carotene. It was found that β-carotene constitutes about 80% of the total carotenoids in apricots. The results indicated that the extraction yield using ethanol was low compared to the extraction yield using propanol. Propanol is the most suitable solvent for carotenoids extraction in comparison with ethanol. The temperature also had a significant effect on the extraction yield; at 20°C the extraction yield was very low, and 60°C was the optimum temperature for the extraction of carotene. The extraction yield significantly increased with time in the first hours of extraction, and there was no significant effect from increasing the extraction time for a period of 6-8 hours. Moreover, the pretreatment of fruits by freezing accelerated the extraction process and increased the extraction yield. The optimum conditions for extracting carotenoids were determined in the conditions of food extraction; the optimum conditions for extracting carotenoids are: extraction at 60°C for three hours with pretreatment by freezing as the extraction rate reached up to 6.36 mg/100 g using ethanol as a food solvent.

scholarly journals Optimization and Kinetics of the Solid-liquid Extraction Process of Polyphenols from Black Mulberry Fruit

2019 ◽  
Vol 70 (3) ◽  
pp. 853-858 ◽  
Author(s):  
Emilija Kostic ◽  
Goran M. Nikolic ◽  
Snezana Mitic ◽  
Danica Dimitrijevic ◽  
Milan Mitic
Keyword(s):  
Extraction Process ◽  
Liquid Extraction ◽  
Operating Conditions ◽  
Total Phenolic ◽  
Extraction Techniques ◽  
Dry Extract ◽  
Morus Nigra ◽  
Mulberry Fruit ◽  
Solid Liquid ◽  
Kinetics Of

This paper investigates the influence of operating conditions and extraction techniques (maceration and ultrasonic) on the yield and extraction of dry extract, total phenolic, flavonoids and anthocyanins from black mulberry fruit (Morus nigra L.). The optimal extraction conditions and kinetic parameters of the extraction process are determined.

scholarly journals MODELING OF ESSENTIAL OIL EXTRACTION PROCESS: APPLICATION FOR ORANGE, POMELO, AND LEMONGRASS

2018 ◽  
Vol 56 (4A) ◽  
pp. 182
Author(s):  
Thanh Nguyen Dang Binh ◽  
Dung Nguyen Trung ◽  
Duc Hong Ta
Keyword(s):  
Large Scale ◽  
Scale Up ◽  
Extraction Process ◽  
Model Parameters ◽  
Two Stage ◽  
Kinetic Rate ◽  
Kinetic Mechanisms ◽  
Extraction Processes ◽  
Solid Liquid ◽  
Kinetics Of

ABSTRACT - HCTN - 44In this study, the kinetic models of steam distillation of orange (Citrus Sinensis (L.) Osbeck), pomelo (Citrus grandis L.), and lemongrass (Cymbopogon Citratus) for the recovery of essential oils were developed. The model parameters were estimated based on experimental data and comprehensive kinetic mechanisms of the solid-liquid extraction process. Numerical results showed that, the extraction mechanism of the three materials were best fit to the Patricelli two-stage model in which the diffusion of the oil was followed by the washing step. Moreover, the model parameters obtained from the measured data reflected clearly the nature of the two-stage extraction at which the kinetic rate of the washing step (surface extraction) was higher than that of in-tissue diffusion step. Thus, the kinetics of the extraction processes obtained from the present work could be used for the scale-up of the extraction process operating at a large scale and for the purpose of process control as well.

scholarly journals Study of Extraction Kinetics of Total Polyphenols from Curry Leaves

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Sunita S. Patil ◽  
Umesh B. Deshannavar ◽  
M. Ramasamy ◽  
Sampath Emani ◽  
Nima Khalilpoor ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Extraction Process ◽  
Polyphenol Content ◽  
Total Polyphenols ◽  
Total Polyphenol ◽  
Batch Extraction ◽  
Total Polyphenol Content ◽  
Curry Leaves ◽  
Solid Liquid ◽  
Kinetics Of

Solid-liquid batch extraction of total polyphenol content from curry leaves (Murraya koenigii L.) was studied in this paper. The effect of different solvent concentrations and temperatures on total polyphenol content was investigated by performing batch experiments. The experimental studies showed that the kinetics of solid-liquid batch extraction was influenced by different solvent concentrations and temperatures. In solid-liquid batch extraction, more recovery of total polyphenols was obtained for 50% (v/v) aqueous methanol and at 333 K temperature. The total polyphenol obtained at optimum conditions was 79.34 mgGAE/L. Mathematical modelling is an important engineering tool used to study the kinetics of extraction as well as in the design of the extraction process to reduce time, energy, and chemical reagents. Peleg and Power law, the two mathematical models, were used to study the kinetics of the batch extraction process. The Peleg model showed the best fit to explain the kinetics of process with R2 > 0.99. Further conventional extraction methods are compared with the novel extraction method.

Kinetics of the Solid-Liquid Extraction Process of Phenolic Antioxidants and Antioxidant Capacity from Hop (Humulus lupulus L.)

2014 ◽  
Vol 50 (11) ◽  
pp. 1658-1664 ◽  
Author(s):  
Dušan Đ. Paunović ◽  
Snežana S. Mitić ◽  
Gordana S. Stojanović ◽  
Milan N. Mitić ◽  
Branka T. Stojanović ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Extraction Process ◽  
Liquid Extraction ◽  
Humulus Lupulus ◽  
Phenolic Antioxidants ◽  
Humulus Lupulus L ◽  
Solid Liquid Extraction ◽  
Solid Liquid ◽  
Kinetics Of

scholarly journals Drying Kinetics and Optimisation of Pectin Extraction from Banana Peels via Response Surface Methodology

2018 ◽  
Vol 152 ◽  
pp. 01002 ◽  
Author(s):  
Chua Bee Lin ◽  
Chong Yek Cze
Keyword(s):  
Response Surface ◽  
Extraction Process ◽  
Extraction Yield ◽  
Drying Kinetics ◽  
Extraction Temperature ◽  
Surface Design ◽  
Drying Kinetic ◽  
Pharmaceutical Industries ◽  
Gelling Time ◽  
Solid Liquid

Banana peels which are the waste in abundance, are used to extract valuable pectin. The gelling ability of the pectin has gained attention in food and pharmaceutical industries. This research aims to select the best drying kinetic model for banana peels and also optimize the pectin extraction process using Box-Behnken response surface design (BBD). Determination of pectin gelling mechanism using degree of esterification (DE) is also focused in this research. In this study, oven drying with temperature 50°C was chosen as the best drying temperature due to highest extraction yield. Furthermore, Page-Two-term model was selected as the best model to describe the drying kinetics of banana peels due to highest R2 value (0.9991) and lowest RMSE value (0.001). The optimal extraction conditions given by BBD were 75°C extraction temperature, 23 min extraction time and 1:33.3 g/ml solid-liquid ratio. Likewise, the DE for both pectins extracted using unoptimised and optimised conditions were 71.92±1.38% and 76.1±2.07% respectively. Both of the pectins were classified as high-methoxyl pectins. The pectin with higher DE also indicated that the rate of gel formation is higher. The results showed that the pectin yield and gelling time has successfully improved after optimised the pectin extraction process.

scholarly journals Modelling of solid-liquid extraction process of total polyphenols from soybeans

2010 ◽  
Vol 28 (No. 3) ◽  
pp. 206-212 ◽  
Author(s):  
S. Jokić ◽  
D. Velić ◽  
M. Bilić ◽  
A. Bucić-Kojić ◽  
M. Planinić ◽  
...  
Keyword(s):  
Mathematical Models ◽  
Aqueous Ethanol ◽  
Extraction Process ◽  
Extraction Yield ◽  
Liquid Extraction ◽  
Ethanol Solution ◽  
Aqueous Ethanol Solution ◽  
Total Polyphenols ◽  
Solid Liquid Extraction ◽  
Solid Liquid

The influence of the solvent, temperature, and extraction time on the extractability of total polyphenols from milled soybeans variety Ika was investigated. The study was performed in order to select the most suitable solvent (water; 50, 60, 70, and 80% aqueous ethanol) for achieving the highest yield of total polyphenols. The most effective solvent (50% aqueous ethanol solution) was used for monitoring the kinetics and modelling of solid-liquid extraction of total polyphenols from soybeans, average particle size 0.459 mm, at solid-liquid ratio of 20 ml/g (ratio of the solvent volume per g of raw material). The total polyphenols content in the soybean extract was determined spectrophotometrically using Folin-Ciocalteu micro-methods at 765 nm. The applicability of different mathematical models (Peleg, Page, and Logarithmic models) to describe the kinetics of the solid-liquid extraction process of total polyphenols from soybeans was studied as well. The results exhibited a significant influence of the solvent and temperature on the kinetics and extraction yield of total polyphenols from soybeans. The best extraction yield of total polyphenols was obtained using 50% aqueous ethanol solution at 80&deg;C after 120 min (4.322 mg GAE/g<sub>db</sub>). The extraction yield of total polyphenols in soybean extracts increased by increasing the extraction temperature and extending the duration of the extraction process. The mathematical models applied showed a good agreement with the experimental results, which allows their application in modelling and optimisation of solid-liquid extraction process for the extraction of total polyphenols from soybeans.

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