A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies
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Date
2018
Journal Title
Journal ISSN
Volume Title
Type
Publisher
Series Info
TrAC - Trends in Analytical Chemistry
100
100
Scientific Journal Rankings
Abstract
Plant extracts have been long used by the traditional healers for providing health benefits and are nowadays suitable ingredient for the production of formulated health products and nutraceuticals. Traditional methods of extraction such as maceration, percolation, digestion, and preparation of decoctions and infusions are now been replaced by advanced extraction methods for increased extraction efficiency and selectivity of bioactive compounds to meet up the increasing market demand. Advanced techniques use different ways for extraction such as microwaves, ultrasound waves, supercritical fluids, enzymes, pressurized liquids, electric field, etc. These innovative extraction techniques, afford final extracts selectively rich in compounds of interest without formation of artifacts, and are often simple, fast, environment friendly and fully automated compared to existing extraction method. The present review is focused on the recent trends on the extraction of different bioactive chemical constituents depending on the nature of sample matrices and their chemical classes including anthocyanins, flavonoids, polyphenols, alkaloids, oils, etc. In addition, we review the strategies for designing extraction, selection of most suitable extraction methods, and trends of extraction methods for botanicals. Recent progress on the research based on these advanced methods of extractions and their industrial importance are also discussed in detail. � 2017 Elsevier B.V.
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Scopus
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MSA Google Scholar
Keywords
Advanced extraction techniques, Bioactive compounds, Green extraction, Microwave assisted extraction (MAE), Plant matrices, Pressurized liquid extraction (PLE), Supercritical fluid extraction (SFE), Ultrasonic assisted extraction (UAE), Anthocyanins, Effluent treatment, Electric fields, Industrial research, Plant extracts, Solvents, Supercritical fluid extraction, Supercritical fluids, Bioactive compounds, Extraction techniques, Green extractions, Microwave-assisted extraction, Pressurized liquid extraction, Supercritical fluid extraction (SFE), Ultrasonic-assisted extractions, Extraction, alkaloid, anthocyanin, carotenoid, flavonoid, plant extract, polyphenol, polysaccharide, saponin, solvent, vegetable oil, bark, Box Behnken design, central composite design, enzyme assisted extraction, extraction, flower, fruit, microwave assisted extraction, moisture, nonhuman, particle size, plant, plant leaf, plant root, plant seed, pressurized liquid extraction, priority journal, pulsed electric field, pulsed electric field assisted extraction, response surface method, Review, rhizome, supercritical fluid extraction, ultrasonic assisted extraction