Results 1 to 10 of about 2,653,426 (391)

Optimization of Ultrasound-assisted Acidic-solvent Extraction of Colchicine from Colchicum kurdicum (Bornm.) Stef. Using Response Surface Methodology [PDF]

open access: yesResearch Journal of Pharmacognosy, 2020
Background and objectives: Colchicum kurdicum (Bornm.) Stef. is a flowering perennial monocotyledon plant that has many important bioactive compounds especially colchicine and colchicine derivatives.
Mohammad Azadbakht   +8 more
doaj   +1 more source

Successive Solvent Extraction of Polyphenols and Flavonoids from Cistus creticus L. Leaves

open access: yesOxygen, 2023
The aim of this study was to evaluate the efficiency of successive extraction (using solvents of increasing polarity, namely hexane, ethyl acetate, acetone, ethanol, and water) of polyphenols from Cistus creticus L.
D. Palaiogiannis   +5 more
semanticscholar   +1 more source

Ionic Liquids-Assisted Solvent Extraction of Precious Metals from Chloride Solutions

open access: yesSeparation & Purification Reviews, 2022
Increasing applications of precious metals (PMs: Au, Ag and platinum group metals) and the growing demand is a matter of great concern for supply security.
Jae-chun Lee   +4 more
semanticscholar   +1 more source

Deep Eutectic Solvent as Green Solvent in Extraction of Biological Macromolecules: A Review

open access: yesInternational Journal of Molecular Sciences, 2022
Greater awareness of environmental sustainability has driven many industries to transition from using synthetic organic solvents to greener solvents in their manufacturing.
Jordy Kim Ung Ling, Kunn Hadinoto
semanticscholar   +1 more source

Extraction of Anthocyanins and Total Phenolic Compounds from Acai (Euterpe oleracea Mart.) Using an Experimental Design Methodology. Part 2: Ultrasound-Assisted Extraction [PDF]

open access: yes, 2020
Two optimized methods for ultrasound-assisted extraction were evaluated for the extraction of two types of acai bioactive compounds: Total anthocyanins (TAs) and total phenolic compounds (TPCs).
Aliaño González, María José   +7 more
core   +1 more source

Simultaneous Preconcentration of Triazole Fungicide Residues Using In-Situ Coacervative Extraction Based on a Double-Solvent Supramolecular System Prior to High Performance Liquid Chromatographic Analysis

open access: yesMolecules, 2022
An in situ coacervative extraction (IS-CAE) based on a double-solvent supramolecular system coupled to liquid–liquid microextraction is investigated for extraction and enrichment of triazole fungicides.
Rachaya Buppasang   +7 more
doaj   +1 more source

Natural Deep Eutectic Solvent Extraction of Flavonoids of Scutellaria baicalensis as a Replacement for Conventional Organic Solvents

open access: yesMolecules, 2020
Natural deep eutectic solvents (NADES) are a type of ionic liquid (IL) or deep eutectic solvent (DES), the ingredients of which are exclusively natural products (non-toxic and environmentally friendly).
W. Oomen   +5 more
semanticscholar   +1 more source

Effects of different extraction methods on antioxidant properties of blueberry anthocyanins

open access: yesOpen Chemistry, 2021
Currently, the extraction technology of blueberry anthocyanin includes solvent extraction, enzyme extraction, and ultrasonic extraction. Different methods may damage the internal structure of anthocyanin in the extraction process, and hence the extracted
Li Xiang, Zhu Feiying, Zeng Zhiwen
doaj   +1 more source

Extraction of anthocyanins and total phenolic compounds from açai (euterpe oleracea mart.) using an experimental design methodology. part 1: Pressurized liquid extraction [PDF]

open access: yes, 2020
Currently, açai is one of the most important fruits present in the world. Several studies have demonstrated its high content in phenolic compounds and anthocyanins.
Aliaño González, María José   +7 more
core   +1 more source

Optimized Extraction Method for Kleeb Bua Daeng Formula with the Aid of the Experimental Design

open access: yesJournal of Chemistry, 2021
Kleeb Bua Daeng formula is one of the popular remedies sold in Chao Phya Abhaibhubejhr Hospital, Thailand. This formula contains Piper nigrum L., Nelumbo nucifera Gaertn., and Centella asiatica L. as active components.
Nittaya Ngamkhae   +8 more
doaj   +1 more source

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