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Catechin-based extract optimization obtained from Arbutus unedo L. fruits using maceration/microwave/ultrasound extraction techniques
Open accessAbstract
This study compares three extraction techniques (maceration, microwave and ultrasound) for catechin recover from Arbutus unedo fruit extracts. To obtain the conditions that maximize catechin extraction yield, a response surface methodology was applied using a 3-level full factorial Box–Behnken design in which the processing time (t), temperature (T), ultrasonic power (W) and ethanol percentage (Et%) were the relevant independent variables with the response (catechin content, mg/g dw) measured by HPLC-PDA. A fixed solid/solvent ratio of 50g/L was used in all techniques. Maceration and microwave extractions were found to be the most effective methods, capable of yielding 1.38±0.1 and 1.70±0.3mg/g dw of catechin, respectively at the optimal extraction conditions. The optimal conditions for maceration were 93.2±3.7min, 79.6±5.2°C and 23.1±3.7% of ethanol, while for the microwave extraction were 42.2±4.1min, 137.1±8.1°C and 12.1±1.1% of ethanol. Comparatively with maceration, the microwave system was a faster solution, conducting to slightly higher catechin yields, but using higher temperatures to reach similar values. The ultrasound method was the least effective solution, yielding 0.71±0.1mg/g dw of catechin at 42.4±3.6min, 314.9±21.2W and 40.3±3.8% ethanol. The results highlight the potential of using A. unedo fruits bio-residues as a productive source of catechin.
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“Their structure corresponds to that of hydrophobic tetraterpenes with a structure of branched hydrocarbons with a methyl group bound at C-40 [144,145].”
From The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value (2019) · cites this paper as [145]
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Metadata
- Authors
- Albuquerque, B. R., Prieto, M. A., Barreiro, M. F., Rodrigues, A., Curran, T. P., Barros, L., & Ferreira, I. C. F. R.
- Affiliations
- Universidade Tecnológica Federal do Paraná (BR)
- Universidade de Vigo (ES)
- Universidade Politécnica de Bragança (PT)
- Universidade do Porto (PT)
- University College Dublin (IE)
- Corresponding author
- Ferreira, Isabel C.F.R.
- ORCID
- Venue
- Industrial Crops and Products
- Publisher
- Elsevier BV
- Published
- 2017-01
- Volume
- 95
- Pages
- 404-415
- ISSN
- 0926-6690 (ISSN-L)
- OpenAlex
- W2548500750
- Cited by
- 154
- References
- 57
- Citations by year
- 2026: 8 · 2025: 20 · 2024: 15 · 2023: 20 · 2022: 17 · 2021: 23 · 2020: 21 · 2019: 10 · 2018: 13 · 2017: 7
- FWCI
- 7.86
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- cc-by-nc-nd
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- Locations
- Industrial Crops and Products (publishedVersion)
- Research Repository UCD (University College Dublin) (submittedVersion, cc-by-nc-nd)
- Arrow@dit (Dublin Institute of Technology) (submittedVersion)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
- Funders
- Foundation for Science and Technology (FCT, Portugal) (UID/AGR/00690/2013, SFRH/BPD/107855/2015)
- FEDER
- Topics
- Health Sciences › Medicine › Biochemistry (medical) › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
- Physical Sciences › Chemistry › Organic Chemistry › Edible Oils Quality and Analysis
- Keywords
- Arbutus unedo, cranberry, catechins, maceration, microwave-assisted extraction, ultrasound-assisted extraction, ethanol concentration, extraction temperature, extraction time, polyphenols
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