Combined impact of pulsed electric field and ultrasound on bioactive compounds and FT-IR analysis of almond extract
Open accessAbstract
The aim of this paper is to investigate the combined impact of pulsed electric field (PEF) and ultrasound (US) to evaluate the physicochemical, bioactive compounds and chemical structure of almond extract. Almond extract was first treated with PEF and then with US. Combined treatment (PEF-US) has attained the highest value of total phenolics, total flavonoids, condense tannins, anthocyanin contents and antioxidant activity in DPPH, reducing power and metal chelating activity than all other treatments. Among all those treatments, there was slightly visible difference in the color. Moreover, FT-IR spectra indicate that the effect of PEF-US on almond extract did not produce new carbonyl compounds, but led to the higher concentration of these compounds. This study demonstrated that the PEF-US could be useful for the extraction of bioactive compounds as well as improving the stability of volatile compounds.
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Manzoor et al. [135] found that combined treatment of PEFAE and UAE exhibits highest values of total phenolics, total flavonoids, condensed tannins, anthocyanin contents and antioxidant activity in DPPH, reducing power and metal chelating activity surpassing other treatments.
“The combined treatment exhibits the highest values of total phenolics, total flavonoids, condensed tannins, anthocyanin contents and antioxidant activity in DPPH, reducing power and metal chelating activity surpassing other treatments.”
From A comprehensive review of ultrasonic assisted extraction (UAE) for bioactive components: Principles, advantages, equipment, and combined technologies (2023) · cites this paper as [135]
The TPC/TFC, DPPH, and reducing-power results identify PEF-US as highest, and the anthocyanin results say it exceeded all other treatments. The condensed-tannin and metal-chelating sections, together with the Conclusion, report improvements with combined treatment but do not establish that it had the highest value for either measure. (LLM, conf=0.82)
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“Manzoor et al. [135] studied the combined effects of PEFAE and UAE on the bioactive compounds in almond extract.”
BackgroundCarreira-Casais, A., Otero, P., Garcia-Perez, P., Garcia-Oliveira, P., Pereira, A. G., Carpena, M., Soria-Lopez, A., Simal-Gandara, J., & Prieto, M. A. (2021) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph18179153 · Cited by 395 · see citing works
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- Authors
- Manzoor, M. F., Zeng, X.-A., Rahaman, A., Siddeeg, A., Aadil, R. M., Ahmed, Z., Li, J., & Niu, D.
- Affiliations
- South China University of Technology (CN)
- University of Gezira (SD)
- University of Agriculture Faisalabad (PK)
- Corresponding author
- Zeng, Xin-An
- ORCID
- Venue
- Journal of Food Science and Technology
- Published
- 2019-04-02
- Volume
- 56
- Issue
- 5
- Pages
- 2355-2364
- ISSN
- 0022-1155 (ISSN-L)
- 0975-8402
- PMC
- PMC6525683
- OpenAlex
- W2927466716
- Cited by
- 151
- References
- 39
- Citations by year
- 2026: 9 · 2025: 18 · 2024: 25 · 2023: 20 · 2022: 24 · 2021: 25 · 2020: 18 · 2019: 12
- FWCI
- 10.89
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Journal of Food Science and Technology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (111 Project, 21576099, B17018)
- China Scholarship Council
- Higher Education Discipline Innovation Project (B1701 8, 2015A030312001)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Inactivation Methods
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Physical Sciences › Materials Science › Materials Chemistry › Ultrasound and Cavitation Phenomena
- Keywords
- pulsed electric field, ultrasound, almond extract, combined processing, bioactive compounds, total phenolic content, flavonoids, proanthocyanidins, anthocyanins, antioxidant activity, volatile compounds, carbonyl compounds
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