| Anthocyanin and flavonoid production from Perilla frutescens: pilot plant scale processing including cross-flow microfiltration and reverse osmosis. | |
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MedLine Citation:
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PMID: 16756359 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Extraction and concentration at a pilot plant scale of anthocyanins and flavonoids from Perilla frutescens var. frutescens harvested in the Guangzhou area of China were investigated. The study of extraction efficiency using mineral acids and organic acids showed that 0.01 mol/L nitric acid was the most suitable to extract flavonoids from this slightly red leaf cultivar. The red extract contained 12 mg/L (as cyanidin equivalent) anthocyanins and other flavones. The multistep process included cross-flow microfiltration (CFM) with a ceramic type membrane, reverse osmosis (RO), and rotating evaporation (RE). The filtration fluxes were high and constant for CFM (150 L/h/m2 at 0.6 b) and for RO (22 L/h/m2 at 40 b). The red extract was concentrated 9.4 times by RO and then 5.4 times by RE. It contained 422 mg/L anthocyanins, representing 77% of the total extracted anthocyanin. The proportion of flavonoids was found unchanged during processing. The concentrated extract showed a pH of 2.7, and its free acidity was found to be 46% of the acidity added for extraction, because of the buffering capacity of the extract. At the concentration level reached, a crystallized deposit occurred and was identified as tartrate. |
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Authors:
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Linghua Meng; Yves Lozano; Isabelle Bombarda; Emile Gaydou; Bin Li |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 54 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2006 Jun |
Date Detail:
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Created Date: 2006-06-07 Completed Date: 2006-08-08 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 4297-303 Citation Subset: IM |
Affiliation:
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Centre de Coopération Internationale en Recherche Agronomique pour le Développement, UMR Génie des Procédés et Elaboration des Bioproduits, TA 40/16, 73 Avenue Agropolis, 34398 Montpellier Cedex 5, France. |
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| MeSH Terms | |
Descriptor/Qualifier:
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Anthocyanins
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analysis,
isolation & purification* Chromatography, High Pressure Liquid Filtration Flavones / analysis Flavonoids / isolation & purification* Food Handling / methods* Osmosis Perilla frutescens / chemistry* Plant Extracts / chemistry Plant Leaves / chemistry Plant Stems / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Anthocyanins; 0/Flavones; 0/Flavonoids; 0/Plant Extracts |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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