Cited by 154Phytochemicals and Antioxidant ActivitiesAgricultural and Biological ResearchEdible Oils Quality and Analysis

Catechin-based extract optimization obtained from Arbutus unedo L. fruits using maceration/microwave/ultrasound extraction techniques

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Albuquerque, Bianca R., Prieto, M.A., Barreiro, Maria Filomena, Rodrigues, Alírio, Curran, Thomas P., Barros, Lillian, Ferreira, Isabel C.F.R.·2017·Industrial Crops and Products

Abstract

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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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.
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
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 › 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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