Journal
PLANTS-BASEL
Volume 12, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/plants12112211
Keywords
supercritical fluid extraction; makwaen pepper; Zanthoxylum myriacanthum; green extraction; hydro-distillation; antimicrobial property; antioxidant
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This study aimed to optimize the pressure and temperature conditions for supercritical fluid extraction (SFE) of Makwaen pepper (Zanthoxylum myriacanthum) extract (ME) in comparison to conventional hydro-distillation extraction. The optimal SFE conditions were found to be 20 MPa at 60 degrees C, resulting in the highest yield and total phenolic compound content. The ME obtained through SFE exhibited better physicochemical and antioxidant properties, while the hydro-distillation-extracted ME showed stronger antimicrobial properties.
This research aimed to optimize pressure (10-20 MPa) and temperature (45-60 degrees C) conditions for supercritical fluid extraction (SFE) of Makwaen pepper (Zanthoxylum myriacanthum) extract (ME) in comparison to conventional hydro-distillation extraction. Various quality parameters, including yield, total phenolic compounds, antioxidants, and antimicrobial activities of the extracts, were assessed and optimized using a central composite design. The optimal SFE conditions were found to be 20 MPa at 60 degrees C, which resulted in the highest yield (19%) and a total phenolic compound content of 31.54 mg GAE/mL extract. IC50 values for DPPH and ABTS assays were determined to be 26.06 and 19.90 mu g/mL extract, respectively. Overall, the ME obtained through SFE exhibited significantly better physicochemical and antioxidant properties compared to ME obtained through hydro-distillation extraction. Gas chromatography-mass spectrometry (GC-MS) analysis revealed that beta-pinene was the major component in the ME obtained through SFE (23.10%), followed by d-limonene, alpha-pinene, and terpinen-4-ol at concentrations of 16.08, 7.47, and 6.34%, respectively. On the other hand, the hydro-distillation-extracted ME showed stronger antimicrobial properties than the SFE-extracted ME. These findings suggest that both SFE and hydro-distillation have the potential for extracting Makwaen pepper, depending on the intended purpose of use.
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