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
Food Science & Technology
Carolina Medina-Jaramillo, Edward Gomez-Delgado, Alex Lopez-Cordoba
Summary: The optimal ultrasound-assisted extraction conditions for obtaining extracts with high polyphenols content and DPPH scavenging activity from Welsh onion leaves were determined. The extracts showed strong antioxidant activity and contained abundant cyanidin and quercetin-3-glucoside compounds.
Article
Environmental Sciences
Haiyang Yu, Xinxin Du, Qiang Zhao, Chunguang Yin, Wenlu Song
Summary: Through gene regulatory network analysis, it was found that chlorophyll plays a key role in the toxicological response of Chlorella to ADSD contamination, and a possible chlorophyll metabolism pathway was proposed.
ENVIRONMENTAL POLLUTION
(2022)
Article
Materials Science, Paper & Wood
Mengqi Dong, Yufan Hu, Huijun Zhang, Xinyuan Lan, Xiaolu Ran, Yijia Li, Lu Gan, Shuguang Han
Summary: Optimization of tannin extraction from bayberry barks through ultrasound-assisted extraction (UAE) was achieved by investigating the effects of solute to solvent ratio, solvent concentration, extraction time, and sonication temperature. The extracts were characterized using mass spectrometer, nuclear magnetic resonance, and gel permeation chromatography. The polyflavonoids of bayberry tannins were found to range from dimers to heptamers, composed of proanthocyanidins containing galloy groups.
Article
Biotechnology & Applied Microbiology
Xiaotong Zou, Kaiwei Xu, Wenjuan Chang, Yanhui Qu, Yanpeng Li
Summary: A novel method using buoyant beads and ultrasound assisted solvent extraction was developed for efficient lipid extraction from microalgae in this study. The central composite design was used to analyze and evaluate the effects of several parameters on lipid yield, resulting in the optimum lipid yield. This method showed higher disruption efficiency, smaller particle size, and different fatty acid composition compared to traditional methods.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Plant Sciences
Alexander Weremfo, Felix Adulley, Kwabena Dabie, Samuel Abassah-Oppong, Emmanuel Peprah-Yamoah
Summary: This study evaluated the extraction of phenolic antioxidants from turkey berry fruits using ultrasound-assisted extraction technique. The results showed that ultrasound-assisted extraction can recover higher phenolic antioxidants in shorter time compared to conventional solvent extraction. The main phenolic compounds found in the extract were catechin, kaempferol, quercetin, rutin, and syringic acid.
JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS
(2022)
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, Multidisciplinary
Khadija Tul Kubra, Dildar Ahmed, Alev Yuksel Aydar, Muhammad Tariq Qamar
Summary: This study explored the extraction of glycyrrhizin from licorice using two glycerol-based deep eutectic solvents (GAA and GCC) and two different techniques (HAE and UAE). Optimization was done using response surface methodology (RSM) and quantification was done using HPLC. The highest yield was obtained from GAA-HAE with a temperature of 80°C, time of 25 minutes, and 50% DES concentration.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
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
Napoleon Gonzalez-Silva, Yolanda Nolasco-Gonzalez, Gabriela Aguilar-Hernandez, Sonia Guadalupe Sayago-Ayerdi, Zuami Villagran, Jose Luis Acosta, Efigenia Montalvo-Gonzalez, Luis Miguel Anaya-Esparza
Summary: The study optimized conditions for ultrasound-assisted extraction of soluble polyphenols from Psidium cattleianum leaves using response surface methodology. The optimal UAE conditions showed higher efficiency in extracting total phenolics compared to conventional aqueous-organic extraction method and exhibited higher antioxidant values in PC leaf extracts. Various phenolic acids and kaempferol were identified in PC leaves under UAE conditions.
Article
Chemistry, Analytical
Marjan Mazrouei Sebdani, Hajar Abbasi
Summary: This study aimed to extract carotenoids from pumpkin using ultrasound and sunflower oil as a green solvent. The optimal extraction conditions were found to be a solid-solvent ratio of 0.08 g/mL, a temperature of 30°C, and an extraction time of 55 min. These conditions resulted in the highest carotenoid content, 8 -carotene, phenolic content, and antioxidant activity.
MICROCHEMICAL JOURNAL
(2023)
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
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
Food Science & Technology
Shubhra Shekhar, Prem Prakash, Poonam Singha, Kamlesh Prasad, Sushil Kumar Singh
Summary: This study investigates the effect of ultrasound on the extraction of bioactive compounds from garlic leaf powder. The experiment explores the optimal conditions for maximum extraction yield, total phenol content, total flavonoid content, and antioxidant activity. The results suggest that ultrasound-assisted extraction at 53% amplitude, 13 minutes treatment time, and 50% ethanol concentration provides the highest extraction yield and bioactive compound content.