Optimization of Monomeric Anthocyanin Extraction Conditions From a New Source (Crataegus azarolus L. Fruits) Sequential Methodology Combined With a Central Composite Design, and Evaluation of Their Antioxidant Properties
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Abstract
ABSTRACT
The aim of this study was to optimize the extraction of total monomeric anthocyanins (TMACs) from hawthorn (Crataegus azarolus) fruits and to evaluate their antioxidant activity. The extraction was optimized on the basis of two approaches using sequential procedure and central composite design (CCD). The effects of various parameters were examined, including type and concentration of solvent, extraction method, sonication amplitude, extraction time, particle size, solid/solvent ratio, and number of extractions. The antioxidant activity of the optimal extract was evaluated using ferric reducing power (FRP), total antioxidant capacity (TAC), and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays. The results indicated that 80% methanol was the most effective solvent with the highest extraction yield (205.69 ± 4.52 µg cyanidin-3-rutinoside equivalent [CRE]/g). Ultrasound-assisted extraction (100% amplitude for 5 min), combined with a particle size (< 63 µm) using a solid/solvent ratio of 800 mg/10 mL, yielded the highest anthocyanin content (225.76 ± 4.10 µg CRE). Optimization using CCD revealed that the optimal conditions for anthocyanin extraction were 74.45% methanol, 78.46% sonication amplitude, and 4.5 min of extraction time, with a yield of 320.01 ± 4.18 µg CRE/g. The optimal extract showed strong antioxidant activity inhibitory concentration (IC50 DPPH = 193.53 ± 3.71 µg/mL; FRP A0.5 = 136.12 ± 5.29 µg/mL; TAC = 42.83 ± 0.67 mg ascorbic acid equivalent [AAE]/g). Optimization of the extraction increases anthocyanin yield of hawthorn with a significant antioxidant activity, thus providing a promising extract for the formulation of functional foods and food supplements.
Practical Application
Optimizing the extraction of anthocyanins from a new source could make it possible to produce more effective natural dyes for the food industry, offering an alternative to synthetic dyes. It could also benefit the cosmetics industry by providing more natural formulations and the pharmaceutical and nutraceutical sectors, where these compounds are sought after for their antioxidant properties.
期刊介绍:
The goal of the Journal of Food Science is to offer scientists, researchers, and other food professionals the opportunity to share knowledge of scientific advancements in the myriad disciplines affecting their work, through a respected peer-reviewed publication. The Journal of Food Science serves as an international forum for vital research and developments in food science.
The range of topics covered in the journal include:
-Concise Reviews and Hypotheses in Food Science
-New Horizons in Food Research
-Integrated Food Science
-Food Chemistry
-Food Engineering, Materials Science, and Nanotechnology
-Food Microbiology and Safety
-Sensory and Consumer Sciences
-Health, Nutrition, and Food
-Toxicology and Chemical Food Safety
The Journal of Food Science publishes peer-reviewed articles that cover all aspects of food science, including safety and nutrition. Reviews should be 15 to 50 typewritten pages (including tables, figures, and references), should provide in-depth coverage of a narrowly defined topic, and should embody careful evaluation (weaknesses, strengths, explanation of discrepancies in results among similar studies) of all pertinent studies, so that insightful interpretations and conclusions can be presented. Hypothesis papers are especially appropriate in pioneering areas of research or important areas that are afflicted by scientific controversy.