Anthocyanin extractability assesment of grape skins by texture analysis
Aims: The aim of this work was to evaluate the kinetics of anthocyanin extraction in berries of cv Brachetto and Nebbiolo, having the same level of total soluble solids, but with different skin hardness. Methods and results: A puncture test was carried out on berries calibrated according to their de...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Viticulture and Enology Society
2008-09-01
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| Series: | OENO One |
| Subjects: | |
| Online Access: | https://oeno-one.eu/article/view/819 |
| _version_ | 1818615202410659840 |
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| author | Luca Rolle Fabrizio Torchio Giuseppe Zeppa Vincenzo Gerbi |
| author_facet | Luca Rolle Fabrizio Torchio Giuseppe Zeppa Vincenzo Gerbi |
| author_sort | Luca Rolle |
| collection | DOAJ |
| description | Aims: The aim of this work was to evaluate the kinetics of anthocyanin extraction in berries of cv Brachetto and Nebbiolo, having the same level of total soluble solids, but with different skin hardness.
Methods and results: A puncture test was carried out on berries calibrated according to their density, estimated by flotation in different salt solutions. For each variety, two groups of berries of different skin hardness were selected: soft (< medium value) and hard (> medium value). Spectrophotometric and HPLC methods were used to evaluate the kinetics of anthocyanin extraction in a hydroalcoholic buffer solution. In each of the examined cultivars, the grapes with a higher break skin force produced extracts with a higher content in total anthocyanin. The anthocyanin profile of extracts of Brachetto hard skin is characterized by a higher content of acetyl-glucosides.
Conclusion: Texture analysis, which is fast and inexpensive, turned out to be an excellent analytical technique to verify skin hardness measurements. The break skin force proved to be a mechanical parameter able to estimate the extractability of anthocyanins with adequate reliability.
Significance and impact of study: The possibility of having an easy way to determine maturity index able to estimate the extractability of phenol compounds with sufficient reliability, can be a valuable tool for the enological community. |
| first_indexed | 2024-12-16T16:30:09Z |
| format | Article |
| id | doaj.art-10244eebf7114046846c8a237bc799ae |
| institution | Directory Open Access Journal |
| issn | 2494-1271 |
| language | English |
| last_indexed | 2024-12-16T16:30:09Z |
| publishDate | 2008-09-01 |
| publisher | International Viticulture and Enology Society |
| record_format | Article |
| series | OENO One |
| spelling | doaj.art-10244eebf7114046846c8a237bc799ae2022-12-21T22:24:37ZengInternational Viticulture and Enology SocietyOENO One2494-12712008-09-0142315716210.20870/oeno-one.2008.42.3.819819Anthocyanin extractability assesment of grape skins by texture analysisLuca Rolle0Fabrizio Torchio1Giuseppe Zeppa2Vincenzo Gerbi3DIVAPRA - Food Technology Sector, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco, Torino, ItalyDIVAPRA - Food Technology Sector, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco, Torino, ItalyDipartimento di Valorizzazione e Protezione Risorse Agroforestali, Settore Tecnologie Alimentari, Università degli Studi di Torino, Via L. da Vinci 44, 10095 Grugliasco (TO), ItalyDIVAPRA - Food Technology Sector, University of Turin, via Leonardo da Vinci 44, 10095 Grugliasco, Torino, ItalyAims: The aim of this work was to evaluate the kinetics of anthocyanin extraction in berries of cv Brachetto and Nebbiolo, having the same level of total soluble solids, but with different skin hardness. Methods and results: A puncture test was carried out on berries calibrated according to their density, estimated by flotation in different salt solutions. For each variety, two groups of berries of different skin hardness were selected: soft (< medium value) and hard (> medium value). Spectrophotometric and HPLC methods were used to evaluate the kinetics of anthocyanin extraction in a hydroalcoholic buffer solution. In each of the examined cultivars, the grapes with a higher break skin force produced extracts with a higher content in total anthocyanin. The anthocyanin profile of extracts of Brachetto hard skin is characterized by a higher content of acetyl-glucosides. Conclusion: Texture analysis, which is fast and inexpensive, turned out to be an excellent analytical technique to verify skin hardness measurements. The break skin force proved to be a mechanical parameter able to estimate the extractability of anthocyanins with adequate reliability. Significance and impact of study: The possibility of having an easy way to determine maturity index able to estimate the extractability of phenol compounds with sufficient reliability, can be a valuable tool for the enological community.https://oeno-one.eu/article/view/819texture analysisanthocyanin extractabilityVitis viniferaNebbioloBrachetto |
| spellingShingle | Luca Rolle Fabrizio Torchio Giuseppe Zeppa Vincenzo Gerbi Anthocyanin extractability assesment of grape skins by texture analysis OENO One texture analysis anthocyanin extractability Vitis vinifera Nebbiolo Brachetto |
| title | Anthocyanin extractability assesment of grape skins by texture analysis |
| title_full | Anthocyanin extractability assesment of grape skins by texture analysis |
| title_fullStr | Anthocyanin extractability assesment of grape skins by texture analysis |
| title_full_unstemmed | Anthocyanin extractability assesment of grape skins by texture analysis |
| title_short | Anthocyanin extractability assesment of grape skins by texture analysis |
| title_sort | anthocyanin extractability assesment of grape skins by texture analysis |
| topic | texture analysis anthocyanin extractability Vitis vinifera Nebbiolo Brachetto |
| url | https://oeno-one.eu/article/view/819 |
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