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Simultaneous process optimization of ultrasound-assisted extraction of polyphenols and ellagic acid from pomegranate (Punica granatum L.) flowers and its biological activities
- Source :
- Ultrasonics Sonochemistry, Vol 80, Iss, Pp 105833-(2021), Ultrasonics Sonochemistry
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- Graphical abstract<br />Highlights • Unpetaled pomegranate flowers are usually discarded, rich in resources and valuable for exploitation. • Ultrasound-assisted extraction of active ingredients from pomegranate flowers. • Ultrasound-assisted extraction of active ingredients from pomegranate flowers.<br />This study was designed to optimize the extraction rate of total polyphenols and ellagic acid from pomegranate flowers. Single factors were investigated for liquid-to-material ratio (5–25), ethanol concentration (20%–60%), sonication time (5–60 min), and sonication power (150–500 W). The level range of the Box-Bokhen design was determined with respect to the single-factor results. The components of each index were normalized using the entropy weighting method for obtaining the comprehensive evaluation value. Under the actual conditions, the final optimization results were 17 for liquid-to-material ratio, 43% for ethanol concentration, 10 min for ultrasonic time, and 300 W for ultrasonic power. The extracts obtained under optimal conditions were tested for the inhibition of Streptococcus mutans and its biofilm, and results showed that pomegranate flowers exerted some inhibitory effects on the bacterium. Phosphomolybdenum and FRAP assays were used, and DPPH, ABTS, and •O2− radical scavenging tests were conducted, indicating that pomegranate flower extracts have good antioxidant capacity.
- Subjects :
- Acoustics and Ultrasonics
DPPH
Sonication
QC221-246
Flowers
Antioxidants
Pomegranate
Inorganic Chemistry
Streptococcus mutans
chemistry.chemical_compound
Ellagic Acid
Chemical Engineering (miscellaneous)
Environmental Chemistry
Radiology, Nuclear Medicine and imaging
Original Research Article
Food science
QD1-999
ComputingMethodologies_COMPUTERGRAPHICS
Ultrasonic-assisted extraction
ABTS
Ethanol
biology
Plant Extracts
Chemistry
Organic Chemistry
Extraction (chemistry)
Pomegranate flowers
Acoustics. Sound
Polyphenols
Box-Bohnken design
biology.organism_classification
Punica granatum L. flowers
Polyphenol
Punica
Antioxidant activities
Ellagic acid
Subjects
Details
- Language :
- English
- ISSN :
- 13504177
- Volume :
- 80
- Database :
- OpenAIRE
- Journal :
- Ultrasonics Sonochemistry
- Accession number :
- edsair.doi.dedup.....6f29d08cebe18afa6a98b3e971d963c1