Su CH, Pham TTT, Cheng HH. Aqueous enzymatic extraction of rosmarinic acid from Salvia officinalis: optimisation using response surface methodology.
PHYTOCHEMICAL ANALYSIS : PCA 2020;
31:575-582. [PMID:
31997419 DOI:
10.1002/pca.2922]
[Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/10/2019] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
INTRODUCTION
Rosmarinic acid is a bioactive compound with various pharmaceutical effects and applications.
OBJECTIVE
This work developed a new approach for aqueous enzymatic extraction of rosmarinic acid from the leaves of Salvia officinalis.
METHODS
Different enzymes (proteases and cellulase) were evaluated for their extraction activity. Response surface methodology (RSM) was subsequently employed to optimise the extraction conditions. Thin layer chromatography was also used to identify rosmarinic acid in the extract of S. officinalis.
RESULTS
Among the tested enzymes, a Cellulase A and Protamex mixture (1:1, w/w) exhibited maximum effectiveness in the extraction. Through the use of RSM, the maximum rosmarinic acid content of 28.23 ± 0.41 mg/g was obtained with enzyme loading of 4.49%, water-to-sample ratio of 25.76 mL/g, temperature of 54.3°C, and extraction time of 2 h.
CONCLUSION
This study suggests that S. officinalis is a promising source of rosmarinic acid and aqueous enzymatic extraction is an efficient and ecofriendly method for extracting rosmarinic acid, with a short extraction time and without the contamination of a toxic solvent.
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