Extraction of trans-Anethole from Star Anise (Illicium verum) Using Combination of Microwave, Ultrasonic, and Enzyme Assisted Methods and Evaluation of Their Antibacterial Activity
E. Iftitah, Warsito Warsito, Vivi Nurhadianty, Fitri Ariadna Sodi Miranda, Rafika Nur Hafidah
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引用次数: 0
Abstract
This study examines the efficiency of non-conventional extraction methods to obtain trans-anethole from Illicium verum using single and combination extraction techniques: microwave assisted extraction (MAE), ultrasound-assisted extraction (UAE), and enzyme assisted extraction (EAE) employing lipase from Aspergillus oryzae. All extraction methods were conducted using 96% ethanol (1:5 w/v) with varying time durations. The resulting product was an oleoresin, subsequently analyzed and separated using thin liquid chromatography (TLC) and column chromatography employing a solvent mixture of toluene and ethyl acetate in a 9:1 ratio and identified via gas chromatography-mass spectra (GC-MS). The results revealed that trans-anethole yields from a single extraction method were 30.76% (MAE), 41.05% (UAE), and 40.90% (EAE). The combination of extraction methods, such as MAE-UAE, MAE-EAE, and UAE-EAE, produced trans-anethole yields of approximately 42.73%, 52.80%, and 45.02% respectively, surpassing the yields of the single extraction method. Notably, the triple extraction method of MAE-UAE-EAE yielded the highest trans-anethole content at 56.00%. Antibacterial testing against Staphylococcus aureus was performed on all samples. The trans-anethole demonstrating the highest inhibitory effect was obtained from the double extraction method, particularly the combination of UAE-EAE. These results underscore the synergistic efficiency of combining microwave, ultrasound, and enzymatic extraction methods, highlighting their superior efficacy in obtaining trans-anethole.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.