Article
Chemistry, Multidisciplinary
Faiza Imtiaz, Dildar Ahmed, Rana Haris Abdullah, Samra Ihsan
Summary: In this study, efficient and eco-friendly techniques, microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE), were optimized to extract bioactives from Thuja orientalis. Both techniques showed effectiveness in fracturing the cell matrix and extracting phenolic compounds, antioxidants, and metal chelators. MAE was found to be more efficient in TPC, TFC, and ABTS-RSA, while UAE showed higher efficiency in DPPH-RSA and MCA.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Multidisciplinary
Nida Anis, Dildar Ahmed
Summary: This study explored the extraction of polyphenolic and antioxidant compounds from Rumex hastatus D. Don using glycerol-choline chloride deep eutectic solvent and modern techniques such as ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE). The results showed that MAE was more efficient in terms of time input and recovery of total polyphenols. The method based on DES-MAE is recommended for industrial use in obtaining bioactives from R. hastatus.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Biochemistry & Molecular Biology
Philip Wiredu Addo, Sai Uday Kumar Reddy Sagili, Samuel Eichhorn Bilodeau, Frederick-Alexandre Gladu-Gallant, Douglas A. MacKenzie, Jennifer Bates, Garnet McRae, Sarah MacPherson, Maxime Paris, Vijaya Raghavan, Valerie Orsat, Mark Lefsrud
Summary: This study evaluated the effects of different extraction techniques on cannabis extraction and optimized conditions for maximum yield and concentration of cannabinoids and terpenes. Ultrasound-assisted extraction outperformed microwave-assisted extraction, with sample-to-solvent ratio significantly influencing the secondary metabolite profiles in ultrasound-assisted extracts.
Article
Energy & Fuels
Em Canh Pham, Tuong Vi Thi Le, Kim Chau Thi Le, Huong Ha Hong Ly, Bich Ngoc Thi Vo, Dat Van Nguyen, Tuyen Ngoc Truong
Summary: In this study, response surface methodology and central composite design were used to optimize the production of biodiesel from catfish oil through a microwave-assisted single-step transesterification process. The models predicted the biodiesel yield using acetone and isopropanol as co-solvents, and the results showed that isopropanol had similar effects to acetone. The optimal conditions for biodiesel production were determined, and the experimental results confirmed the accuracy of the regression models. The properties of catfish oil biodiesel produced under the optimum conditions met the EN 14214 standard specifications.
Article
Agricultural Engineering
Kajal Katoch, Romaan Nazir, Aditya Khamparia, Babita Pandey, Abhijit Dey, Devendra Kumar Pandey
Summary: This study aimed to optimize the extraction of plumbagin using MAE method and response surface methodology (RSM) and adaptive neurofuzzy inference system (ANFIS). The results showed that MAE can be a highly efficient method for plumbagin extraction.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Food Science & Technology
Naciye Kutlu, Asli Isci, Ozge Sakiyan, Asim Egemen Yilmaz
Summary: This study aimed to extract bioactive compounds from cornelian cherry using microwave and ohmic heating assisted microwave extraction. The results showed that ohmic heating prior to extraction enhanced the total phenolic compound yield and reduced extraction time significantly. The combined application of ohmic heating and microwave extraction proved to be a potential alternative method for total phenolic compounds extraction with increased yields and reduced extraction times.
FOOD AND BIOPROCESS TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Zenebe Yirgu, Seyoum Leta, Ahmed Hussen, Mohammed Mazharuddin Khan, Temesgen Aragaw
Summary: This study optimized the microwave-assisted extraction process for carbohydrates from indigenous Scenedesmus sp. grown on brewery effluent, achieving the highest carbohydrate yield under specific conditions. The microwave-assisted extraction of carbohydrates from microalgae biomass shows promise as a cost-effective approach for bioethanol production.
Article
Plant Sciences
Milos S. Jovanovic, Milica Milutinovic, Zorica Lazarevic, Jelena Mudric, Jelena Matejic, Dusanka Kitic, Katarina Savikin
Summary: This study compared and optimized conventional heat-assisted extraction (HAE) and advanced microwave-assisted extraction (MAE) of bioactive compounds from willow gentian underground parts. The results showed that MAE method could extract bioactive compounds more rapidly and reduce ethanol consumption.
JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS
(2023)
Article
Acoustics
Fazila Zakaria, Jen-Kit Tan, Siti Munirah Mohd Faudzi, Mohd Basyaruddin Abdul Rahman, Siti Efliza Ashari
Summary: The optimisation of the Ultrasound-Assisted Extraction method was achieved using Response Surface Methodology, resulting in an extraction yield and Total Phenolic Content of 22.69% and 143.51 mg gallic acid equivalent (GAE)/g, respectively. The Liquid Chromatography-tandem Mass Spectrometry analysis identified major phytochemicals in the M. speciosa extract, including catechin, rutin, kaempferol, and more, which could exhibit therapeutic effects such as anti-inflammatory and antioxidant properties.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Ahsan Javed, Marufa Naznin, Md. Badrul Alam, Alshammari Fanar, Bo-Rim Song, Sunghwan Kim, Sang-Han Lee
Summary: In this study, sophisticated models were used to optimize the conditions for extracting high antioxidant activity and metabolite profiling from Sargassum fusiforme (SF). Through the optimized extraction conditions, a maximum antioxidant activity and identification of various secondary metabolites were achieved. The identified compounds may contribute to the improved antioxidant potential of the extract.
Article
Food Science & Technology
Paola Malaspina, Federica Betuzzi, Mariarosaria Ingegneri, Antonella Smeriglio, Laura Cornara, Domenico Trombetta
Summary: This study conducted an in-depth evaluation of laurel and cherry laurel leaves to distinguish their distinguishing features. This multidisciplinary approach can be useful in plant identification, quality control tests, intoxications, and criminal cases.
Article
Food Science & Technology
Seyed-Ahmad Shahidi
Summary: The optimization of extraction conditions for the antioxidant-rich extract from Ficaria Kochii plant was achieved using an ultrasound-assisted system and response surface methodology. The study found that the optimal conditions for extraction using methanol were a solvent-to-raw material ratio of 10%, an extraction time of 50 minutes, and an extraction temperature of 60 degrees C. Under these conditions, the extract had a total phenolic content of 46.379 mg gallic acid equivalents/g dry matter, a total flavonoid content of 11.754 mg quercetin equivalents/g dry matter, and an antioxidant activity of 89.548%. Similarly, the optimal conditions for extraction using water were a solvent-to-raw material ratio of 10%, an extraction time of 30 minutes, and an extraction temperature of 40 degrees C. The resulting extract had a total phenolic content of 51.112 mg gallic acid equivalents/g dry matter, a total flavonoid content of 4.331 mg quercetin equivalents/g dry matter, and an antioxidant activity of 97.004%. This study suggests that the antioxidant-rich extract from Ficaria Kochii could be used as a candidate for food antioxidants and for food storage.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Chao-Hui Feng
Summary: The effects of solvent concentration, treated times, treated temperatures, type of solvents, and ultrasonic frequency on the yield of ultrasonic-assisted extraction from waste orange peels were evaluated using response surface methodology. FTIR spectroscopy was used to rapidly identify the orange extracts. Polynomial regression models were established for crude extraction, sediments after evaporation, and precipitation yield. The results indicated that solvent concentration had a linear effect on crude extraction and precipitation yield. The optimal conditions for increasing precipitation yield were identified as 61.42% methanol concentration, 85 min treatment time, 55 degrees C temperature, and 40 kHz ultrasonic frequency.
Article
Biochemistry & Molecular Biology
Valentina Melini, Francesca Melini, Francisco Javier Comendador
Summary: The accurate quantification of phenolic compounds in foods relies on the challenging and complex extraction process. Response surface methodology (RSM) has become the preferred analytical approach for optimizing extraction parameters and obtaining the best output. This study applied an RSM-optimized ultrasound-assisted procedure to extract phenolic compounds from artichoke heads and investigated the effects of extraction parameters on the phenolic acid and flavonoid content.
Article
Biochemistry & Molecular Biology
Ezzouhra El Maaiden, Nagib Qarah, Amine Ezzariai, Adil Mazar, Boubker Nasser, Khadija Moustaid, Hassan Boukcim, Abdelaziz Hirich, Lamfeddal Kouisni, Youssef El Kharrassi
Summary: Isoquercetin (ISQ) was extracted from Ephedra alata Decne using ultrasound-assisted extraction, and the optimal conditions were determined. The results showed that ultrasound-assisted extraction method was efficient and rapid, and it had potential applications in the pharmaceutical and cosmetics industries.
Article
Chemistry, Applied
Jelena Mitrovic, Nada Nikolic, Ivana Karabegovic, Miodrag Lazic, Gordana Stojanovic
Summary: The study found that the content of free phenolics in chia seeds was influenced by the extraction solvent, while the content of bound phenolics was 932 μg g(-1). Apigenin 4'-O-glucoside and rosmarinic acid were the main phenolic compounds identified. The evaluation of antioxidant activity is more suitable with the DPPH method and reducing power.
NATURAL PRODUCT RESEARCH
(2022)
Article
Food Science & Technology
Jelena Mitrovic, Nada Nikolic, Ivana Karabegovic, Miodrag Lazic, Ljubisa Nikolic, Sasa Savic, Mirjana Pesic, Olivera Simurina, Marija Stojanovic-Krasic
Summary: The content of free and bound phenolics and their antioxidant capacity in cookies enriched by nettle seed flour and extract were studied before, during and after thermal processing. The results showed that the cookies with nettle seed flour had higher stability and antioxidant capacity compared to other cookies, with increased content of free and bound phenolics after thermal processing.
FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Applied
Dragan Cvetkovic, Jelena Stanojevic, Natalija Djordjevic, Ivana Karabegovic, Ljiljana Stanojevic, Branimir Pavlic, Bojana Danilovic
Summary: The study compared the efficiency of innovative extraction techniques with conventional Clevenger hydrodistillation in extracting essential oil from fennel rhizome. The results show that innovative extraction techniques enhance the isolation of essential oils and save time, while also providing environmentally friendly, solvent-free technologies. Among the techniques tested, solvent-free microwave extraction was found to be the most efficient, with limonene and (E)-anethole identified as dominant compounds.
JOURNAL OF ESSENTIAL OIL RESEARCH
(2023)
Article
Food Science & Technology
Ivana Karabegovic, Marko Malicanin, Nikola Popovic, Sandra Stamenkovic Stojanovic, Miodrag Lazic, Jelena Stanojevic, Bojana Danilovic
Summary: This study analyzed the enological potential of two indigenous yeast isolates, Hanseniaspora uvarum S-2 and Candida famata WB-1, in industrial-scale vinification of the grape variety Tamjanika. The results showed that these yeast isolates were able to complete alcoholic fermentation, reduce ethanol concentration, and enhance aroma and sensory profile of the wine. The analysis of volatile compounds indicated that the yeast strains significantly affected the relative contribution of these compounds, resulting in the differences and uniqueness of the obtained wine samples.
Article
Biotechnology & Applied Microbiology
Sandra Stamenkovic Stojanovic, Stojan Mancic, Dragan Cvetkovic, Marko Malicanin, Bojana Danilovic, Ivana Karabegovic
Summary: This study investigates the effects of three different commercial inactive yeast derivatives on the volatile profile, sensory attributes, and antiradical activity of Grasac wines during a 6-month aging period. The addition of these yeast derivatives helped maintain stable antiradical activity by increasing polyphenolic values and mitigating the decrease in -SH groups. Analysis revealed that esters were the major volatile compounds, with certain volatiles showing an increase as the concentration of yeast derivatives increased. Sensory analysis showed that the addition of yeast derivatives generally improved the taste and odor profile of the wine. Each yeast derivative had varying effects on the wine, providing winemakers with the tools to achieve their desired sensory profile.
FERMENTATION-BASEL
(2023)
Article
Agriculture, Multidisciplinary
Sandra Stamenkovic Stojanovic, Ivana Karabegovic, Bojana Danilovic, Viktor Nedovic, Ana Kalusevic, Stojan Mancic, Miodrag Lazic
Summary: The aim of this study was to develop a commercially applicable biofertilizer by microencapsulation of Bacillus subtilis NCIM 2063 and investigate its stability and phytostimulatory effects. The research demonstrated that the microencapsulated formulation had high viability and yield, and remained stable after a one-year storage period. Application of the formulation on green pepper seeds led to beneficial effects on plant height, leaf dry weight, and chlorophyll content of the seedlings.
SPANISH JOURNAL OF AGRICULTURAL RESEARCH
(2022)
Article
Horticulture
Svetlana H. Lakicevic, Ivana T. Karabegovic, Dragan J. Cvetkovic, Miodrag L. Lazic, Rade Jancic, Jelena B. Popovic-Djordjevic
Summary: The autochthones grape variety of 'Prokupac' is increasingly grown in Serbia and is a predominant variety in southern Serbia. Medicinal herbs such as anise, cinnamon, wormwood, and licorice were added to 'Prokupac' wine to evaluate their effect on aroma and sensory characteristics. The addition of anise, wormwood, and cinnamon led to a unique aroma profile in the wine, making it stand out as very good.
Article
Horticulture
Marko Malicanin, Bojana Danilovic, Sandra Stamenkovic Stojanovic, Dragan Cvetkovic, Miodrag Lazic, Ivana Karabegovic, Dragisa Savic
Summary: This study investigated the oenological potential of native strains of Metschnikowia pulcherrima B-5 and Candida famata WB-1 isolated from blackberries in the fermentation of Chardonnay grape. It was found that these strains reduced volatile acidity and increased total polyphenol content in the wines, while also contributing to the development of floral and fruity aromas.
Article
Biotechnology & Applied Microbiology
Stojan Mancic, Sandra Stamenkovic Stojanovic, Bojana Danilovic, Natalija Djordjevic, Marko Malicanin, Miodrag Lazic, Ivana Karabegovic
Summary: The utilization of native yeast strains for winemaking is a new trend, which can produce unique wines with regional character. This study successfully isolated and characterized native strains of H. uvarum yeast, which showed good fermentation capability under various conditions. The selected S-2 isolate exhibited good oenological characteristics and had the potential to give a distinctive note to Prokupac-grape wines.
FERMENTATION-BASEL
(2022)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)