Journal
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
Volume 17, Issue 2, Pages 1317-1342Publisher
SPRINGER
DOI: 10.1007/s11694-022-01697-4
Keywords
Phytonutrients; Extraction; Conventional techniques; Novel; non-conventional extraction techniques
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Phytonutrient extraction is an important technique that involves the extraction of various secondary metabolites from plants, which can be utilized in industries such as nutraceuticals, pharmaceuticals, and food. While traditional extraction methods are still used, novel and greener extraction methods have shown significant improvements.
The phytonutrient extract helps in the development and manufacturing of nutraceuticals and food additives. Some of these secondary metabolites, such as polyphenol, anthocyanins, carotenoids, flavonoids, phytosterols, terpenoids, and others, are extracted from plants. These phytonutrients provide many health benefits like prevention and treatment of a variety of diseases such as cardiovascular disease, neurological disorders, atherosclerosis, certain cancers, and diabetes. Traditional extraction methods such as Soxhlet, maceration, decoction, percolation and infusions are still used, but significant improvements can be made by using novel or greener extraction methods, including accelerated solvent extraction, microwave-assisted extraction, ultrasound-assisted extraction, supercritical fluid extraction, and enzyme-assisted extraction. Once extracted, these phytonutrients can be utilised in the cosmetic, nutraceuticals, pharmaceutical, or food industries, with the later focusing on improving food quality. This article aims to provide a comprehensive overview of the various techniques used in the extraction and isolation of phytonutrients. Additionally, this article describes the advantages, disadvantages, practical examples, and a comparative study of these processes.
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