Volume 22, Issue 161 (2025)
FSCT 2025, 22(161): 244-259 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Borna F, Rahmati-Joneidabad M. Evaluation of the efficiency of osmotic methods and the use of pretreatment in the extraction of active and antioxidant compounds from hibiscus tea and comparison with other methods. FSCT 2025; 22 (161) :244-259
URL: http://fsct.modares.ac.ir/article-7-78388-en.html
URL: http://fsct.modares.ac.ir/article-7-78388-en.html
1- Assistant Professor, Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran. , Borna@asnrukh.ac.ir
2- Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran.
2- Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran.
Abstract: (91 Views)
This research examines the efficiency of various methods for extracting active compounds from hibiscus tea (Hibiscus sabdariffa), focusing on osmotic techniques and the application of specific pretreatments including ultrasound and ethanol. Hibiscus tea, known for its high content of anthocyanins, flavonoids, and phenolic compounds, possesses antioxidant, antibacterial, and blood pressure-lowering properties, making it a rich source of beneficial medicinal and nutritional compounds. In this study, fresh calyces of hibiscus tea were used for extraction, and the impact of different concentrations of osmotic solutions and ultrasound pretreatment in the presence of ethanol on the extraction yield of compounds was investigated. The results indicate that the combination of osmotic methods with ultrasound pretreatment and ethanol solvent significantly increases the yield of phenolic and flavonoid compounds. The highest amount of these compounds was obtained from the EO50S treatment, which included a 50% sucrose osmotic solution combined with ultrasound and ethanol. This method demonstrated better performance due to the preservation of the antioxidant properties of the extracted materials, especially compared to conventional extraction methods. Additionally, the results of the principal component analysis showed that the methods EO50S, EO40S, and O40S exhibited the highest efficiency in extracting plant active compounds. Overall, the findings of this research suggest that osmotic methods combined with ultrasound and ethanol provide an efficient and environmentally friendly approach for extracting active compounds from hibiscus tea, and could be applied in the pharmaceutical and food industries for extracting beneficial compounds from medicinal plants.
Keywords: Anthocyanin, Hibiscus sabdariffa, Osmotic extraction, Total flavonoid, Ultrasonic pretreatment.
Article Type: Original Research |
Subject:
Essences and extracts
Received: 2024/12/8 | Accepted: 2024/12/21 | Published: 2025/06/22
Received: 2024/12/8 | Accepted: 2024/12/21 | Published: 2025/06/22
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |