TY - JOUR
T1 - Efficient valorization of date fruit processing by-product through nano- and green-extraction technology
T2 - a response surface methodology-based optimization study
AU - Mostafa, Hussein
AU - Hamdi, Marwa
AU - Airouyuwa, Jennifer Osamede
AU - Maqsood, Sajid
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
PY - 2024/6
Y1 - 2024/6
N2 - In this study, the synthesis of date seed nanoparticles (SNPs) was investigated using the acid hydrolysis method. Afterwards, the potential extraction of phenolics from the synthetized SNP using microwave was studied using water and methanol as recovery solvents. To accomplish this, the experiments were operated at different conditions following the response surface methodology (RSM). For the synthesis of SNPs, HCl concentration (38%), hydrolysis time (4 days), microwave power (0.5 kW), methanol concentration (80%), and solid/water ratio of 40/1 (w/v) were the main independent factors promoting particle size reduction and maintaining maximum TPC and bioactivities. UHPLC profiling of SNP extracts allowed the identification of 8 phenolic compounds in the methanol-based MAE samples, while only 6 compounds were detected in the water-based MAE extracts. The major phenolic constituents detected in the SNPs were 3,4-dihydroxy benzoic acid, ferulic acid, and p-coumaric acid. Herein, a successful and suitable approach for date seed waste valorization was proposed through SNPs synthesis with enhanced TPC, TFC, and antioxidant activities, being noteworthy to be used in food applications. Graphical abstract: (Figure presented.)
AB - In this study, the synthesis of date seed nanoparticles (SNPs) was investigated using the acid hydrolysis method. Afterwards, the potential extraction of phenolics from the synthetized SNP using microwave was studied using water and methanol as recovery solvents. To accomplish this, the experiments were operated at different conditions following the response surface methodology (RSM). For the synthesis of SNPs, HCl concentration (38%), hydrolysis time (4 days), microwave power (0.5 kW), methanol concentration (80%), and solid/water ratio of 40/1 (w/v) were the main independent factors promoting particle size reduction and maintaining maximum TPC and bioactivities. UHPLC profiling of SNP extracts allowed the identification of 8 phenolic compounds in the methanol-based MAE samples, while only 6 compounds were detected in the water-based MAE extracts. The major phenolic constituents detected in the SNPs were 3,4-dihydroxy benzoic acid, ferulic acid, and p-coumaric acid. Herein, a successful and suitable approach for date seed waste valorization was proposed through SNPs synthesis with enhanced TPC, TFC, and antioxidant activities, being noteworthy to be used in food applications. Graphical abstract: (Figure presented.)
KW - Antioxidant properties
KW - Date seeds
KW - Green technology
KW - Microwave technology
KW - Nanoparticles
KW - Waste valorization
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U2 - 10.1007/s13399-022-03154-0
DO - 10.1007/s13399-022-03154-0
M3 - Article
AN - SCOPUS:85135823569
SN - 2190-6815
VL - 14
SP - 12857
EP - 12875
JO - Biomass Conversion and Biorefinery
JF - Biomass Conversion and Biorefinery
IS - 12
ER -