Journal
MOLECULES
Volume 26, Issue 24, Pages -Publisher
MDPI
DOI: 10.3390/molecules26247422
Keywords
areca nut volatiles; HS-SPME; SHDE; antimicrobial activity
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This study isolated the volatile components of areca nuts using different extraction methods and analyzed their chemical composition and antimicrobial activity. The results showed that fatty acids were the main volatile constituents, and Streptococcus canis was the most sensitive to the extract of areca nuts.
The volatile components of areca nuts were isolated by headspace solid-phase microextraction (HS-SPME, DVB/CAR/PDMS fiber extraction) and simultaneous hydrodistillation-extraction (SHDE) and analyzed by gas chromatography/mass spectrometry. Furthermore, all SHDE fractions were tested for antimicrobial activity using the disk diffusion method on nine Gram-negative and Gram-positive bacteria (Bacillus subtilis, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus agalactiae, Streptococcus canis, Streptococcus pyogenes, and Candida albicans). In total, 98 compounds (mainly alcohols, carbonyl compounds, fatty acids, esters, terpenes, terpenoids, and aliphatic hydrocarbons) were identified in SHDE fractions and by using SPME extraction Fatty acids were the main group of volatile constituents detected in all types of extracts. The microorganism most sensitive to the extract of the areca nut was Streptococcus canis. The results can provide essential information for the application of different treatments of areca nuts in the canning industry or as natural antibiotics.
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