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Effects of high intensity ultrasound on disaggregation of a macromolecular procyanidin-rich fraction from Vitis vinifera L. seed extract and evaluation of its antioxidant activity.
Ultrason Sonochem. 2019 Jan; 50:74-81.US

Abstract

The impact of high intensity ultrasound (US, 45 and 20 kHz) on a purified macromolecular fraction (more than 85% of polymeric procyanidins) from grape seed extract was investigated. Matrix-Assisted Laser Desorption/Ionisation (MALDI-TOF), Reverse Phase High Performance Liquid Chromatography (RP-HPLC) and Fourier-transform infrared spectroscopy (FTIR) revealed a modification in the chemical structure of these macromolecules treated by US and, particularly, bath US produced a considerable increase of up to 49, 41 and 35%, respectively, of catechins and oligomeric and polymeric procyanidin contents of the treated purified fraction. Bath US also produced an important increase in the number of procyanidins with higher molecular mass (up to decamers) and an overall increase in the mass signal intensities in most of the detected B-type procyanidin series, as well as an important increase of the antioxidant activity of the macromolecular fraction of procyanidins. These results could be ascribed to a certain disaggregation of procyanidins linked to other biopolymers, such as proteins and/or polysaccharides, indicating that US is an efficient technology to modify the chemical structure and hence the bioactivity of tannins.

Authors+Show Affiliations

Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), C/ Nicolás Cabrera 9, Universidad Autónoma de Madrid, 28049 Madrid, Spain.Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), C/ Nicolás Cabrera 9, Universidad Autónoma de Madrid, 28049 Madrid, Spain.Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), C/ Nicolás Cabrera 9, Universidad Autónoma de Madrid, 28049 Madrid, Spain. Electronic address: m.villamiel@csic.es.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30219355

Citation

Muñoz-Labrador, Ana, et al. "Effects of High Intensity Ultrasound On Disaggregation of a Macromolecular Procyanidin-rich Fraction From Vitis Vinifera L. Seed Extract and Evaluation of Its Antioxidant Activity." Ultrasonics Sonochemistry, vol. 50, 2019, pp. 74-81.
Muñoz-Labrador A, Prodanov M, Villamiel M. Effects of high intensity ultrasound on disaggregation of a macromolecular procyanidin-rich fraction from Vitis vinifera L. seed extract and evaluation of its antioxidant activity. Ultrason Sonochem. 2019;50:74-81.
Muñoz-Labrador, A., Prodanov, M., & Villamiel, M. (2019). Effects of high intensity ultrasound on disaggregation of a macromolecular procyanidin-rich fraction from Vitis vinifera L. seed extract and evaluation of its antioxidant activity. Ultrasonics Sonochemistry, 50, 74-81. https://doi.org/10.1016/j.ultsonch.2018.08.030
Muñoz-Labrador A, Prodanov M, Villamiel M. Effects of High Intensity Ultrasound On Disaggregation of a Macromolecular Procyanidin-rich Fraction From Vitis Vinifera L. Seed Extract and Evaluation of Its Antioxidant Activity. Ultrason Sonochem. 2019;50:74-81. PubMed PMID: 30219355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of high intensity ultrasound on disaggregation of a macromolecular procyanidin-rich fraction from Vitis vinifera L. seed extract and evaluation of its antioxidant activity. AU - Muñoz-Labrador,Ana, AU - Prodanov,Marin, AU - Villamiel,Mar, Y1 - 2018/08/31/ PY - 2018/07/12/received PY - 2018/08/24/revised PY - 2018/08/30/accepted PY - 2018/9/17/pubmed PY - 2018/11/10/medline PY - 2018/9/17/entrez KW - Antioxidant activity KW - Dissagregation KW - Grape seeds KW - Procyanidins KW - Ultrasound SP - 74 EP - 81 JF - Ultrasonics sonochemistry JO - Ultrason Sonochem VL - 50 N2 - The impact of high intensity ultrasound (US, 45 and 20 kHz) on a purified macromolecular fraction (more than 85% of polymeric procyanidins) from grape seed extract was investigated. Matrix-Assisted Laser Desorption/Ionisation (MALDI-TOF), Reverse Phase High Performance Liquid Chromatography (RP-HPLC) and Fourier-transform infrared spectroscopy (FTIR) revealed a modification in the chemical structure of these macromolecules treated by US and, particularly, bath US produced a considerable increase of up to 49, 41 and 35%, respectively, of catechins and oligomeric and polymeric procyanidin contents of the treated purified fraction. Bath US also produced an important increase in the number of procyanidins with higher molecular mass (up to decamers) and an overall increase in the mass signal intensities in most of the detected B-type procyanidin series, as well as an important increase of the antioxidant activity of the macromolecular fraction of procyanidins. These results could be ascribed to a certain disaggregation of procyanidins linked to other biopolymers, such as proteins and/or polysaccharides, indicating that US is an efficient technology to modify the chemical structure and hence the bioactivity of tannins. SN - 1873-2828 UR - https://www.unboundmedicine.com/medline/citation/30219355/Effects_of_high_intensity_ultrasound_on_disaggregation_of_a_macromolecular_procyanidin_rich_fraction_from_Vitis_vinifera_L__seed_extract_and_evaluation_of_its_antioxidant_activity_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1350-4177(18)31061-7 DB - PRIME DP - Unbound Medicine ER -