Back to Search
Start Over
Increase the yield of bioactive compounds from elder bark and annatto seeds using ultrasound and microwave assisted extraction technologies.
- Source :
-
Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C . Jan2021, Vol. 125, p1-13. 13p. - Publication Year :
- 2021
-
Abstract
- We describe techniques to rapidly increase the yield of bioactive compounds from plant sources such as elder bark and annatto seeds using microwave dielectric heating and ultrasonic cavitation bubbles, a substantial improvement over conventional heating methods. For elder bark, the optimal extraction parameters were obtained with ethanol, using 0.01 L g−1 of solvent to material and extracting for at least an hour at 55 °C. Ursolic acid was found to be more abundant in barks. Under the optimal conditions, the yields of oleanolic acid and ursolic acid were about 86% while using ultrasound assisted extraction and about 92% while using microwaves, respectively. Using the optimal extraction parameters for annatto seeds: ethyl acetate, the ratio of solvent to material at 0.05 L g−1 and at least 30 min. extraction time, the yield of bixin reached about 85% with sonication and 95% with microwave heating. Assisted extraction techniques, with microwave assisted extraction being the most optimal technique, enhanced the extraction efficiencies and extracted higher concentrations when compared to standard methods. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09603085
- Volume :
- 125
- Database :
- Academic Search Index
- Journal :
- Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C
- Publication Type :
- Academic Journal
- Accession number :
- 150048247
- Full Text :
- https://doi.org/10.1016/j.fbp.2020.10.009