Effect of sonication times and almond varieties on bioactive properties, fatty acid and phenolic compounds of almond kernel extracted by ultrasound-assisted extraction system

The bioactive properties of the almond kernel cultivars were determined in the 10 min sonication period with the highest values being observed in the “Ferraduel” almond cultivar. While total phenolic contents of almond kernel extracts obtained by extraction for 10 min change between 10.97 mg GAE/100...

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Bibliographic Details
Published in:Journal of food measurement & characterization 2021-06, Vol.15 (3), p.2481-2490
Main Authors: Özcan, Mehmet Musa, Mohamed Ahmed, Isam A., Uslu, Nurhan, Al-Juhaimi, Fahad, Ghafoor, Kashif, Babiker, Elfadıl E., Osman, Magdi A., Alqah, Hesham A. S.
Format: Article
Language:English
Subjects:
Biological activity
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Cultivars
Engineering
Fatty acids
Food Science
Gallic acid
Kernels
Linoleic acid
Oils & fats
Oleic acid
Original Paper
Phenols
Sonication
Ultrasonic imaging
Ultrasound
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Summary:The bioactive properties of the almond kernel cultivars were determined in the 10 min sonication period with the highest values being observed in the “Ferraduel” almond cultivar. While total phenolic contents of almond kernel extracts obtained by extraction for 10 min change between 10.97 mg GAE/100 g (Texas) and 106.25 mg GAE/100 g (Ferraduel), total phenolic contents of almond kernels extracted for 20 min were determined between 12.57 mg GAE/100 g (Nonpareil) and 103.54 mg GAE/100 g (Ferraduel). Oleic acid amounts of almond kernel oil samples extracted at 10 min changed between 37.84% (Texas) and 75.90% (Ferragnes) while the oleic acid amounts of almond kernel oils obtained by ultrasound-assisted extraction at 20 min sonication period vary between 70.76% (Texas) and 75.91% (Ferragnes). Also, while linoleic acid contents of almond kernel oils at 10 min are identified between 15.78% (Ferragnes) and 21.40% (Texas), linoleic acid amounts of almond kernel oils extracted by ultrasound-assisted extraction at 20 min changed between 16.02% (Ferragnes) and 21.52% (Texas). Gallic acid acid contents of almond kernel extracts at 10 and 20 min sonication period changed between 2.21 mg/100 g (Bitter almond) and 12.90 mg/100 g (Ferragnes), to 3.08 mg/100 g (Nonpareil) and 15.13 mg/100 g (Ferraduel), respectively.
ISSN:2193-4126
2193-4134
DOI:10.1007/s11694-020-00789-3