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The influence of commercial tannin additions on wine composition and quality
Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2006.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2006
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| _version_ | 1867613955553230848 |
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| access_status_str | Open Access |
| author | Keulder, Daniel B. |
| author2 | Du Toit, Wessel J. |
| author_browse | Du Toit, Wessel J. Keulder, Daniel B. |
| author_facet | Du Toit, Wessel J. Keulder, Daniel B. |
| author_sort | Keulder, Daniel B. |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2006. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/2482 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:44:21.913Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/2482 The influence of commercial tannin additions on wine composition and quality Keulder, Daniel B. Du Toit, Wessel J. Oberholster, A. University of Stellenbosch. Faculty of Agrisciences. Dept. of Viticulture and Oenology. Wine and wine making -- Chemistry Tannins Dissertations -- Agriculture Theses -- Agriculture Dissertations -- Viticulture and oenology Theses -- Viticulture and oenology Thesis (MScAgric (Viticulture and Oenology))--University of Stellenbosch, 2006. The quality of wine is influenced by numerous factors of which the grapes, winemaking techniques and effective quality control are to name a few. The use of new techniques should be cost effective and always have a positive influence on the wine quality. The addition of commercial tannins to wine is a fairly new technique and the effects of these additions at the concentrations prescribed have not been investigated in detail. The commercial tannins can be added to wine for different reasons, which may include: stabilisation of colour, increasing the aging potential, to modify aromas, promote precipitation of proteins, limit the effect of laccase activity, substrate for micro-oxygenation, to act as a redox buffer and structural and mouth feel modification. The reason for the addition determines the type of commercial tannin that is used, the timing of the addition and the dosage used. Masters 2006-11-07T05:46:22Z 2010-06-01T08:49:51Z 2006-11-07T05:46:22Z 2010-06-01T08:49:51Z 2006-03 Thesis http://hdl.handle.net/10019.1/2482 en University of Stellenbosch 298381 bytes 209529 bytes 630721 bytes application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Wine and wine making -- Chemistry Tannins Dissertations -- Agriculture Theses -- Agriculture Dissertations -- Viticulture and oenology Theses -- Viticulture and oenology Keulder, Daniel B. The influence of commercial tannin additions on wine composition and quality |
| title | The influence of commercial tannin additions on wine composition and quality |
| title_full | The influence of commercial tannin additions on wine composition and quality |
| title_fullStr | The influence of commercial tannin additions on wine composition and quality |
| title_full_unstemmed | The influence of commercial tannin additions on wine composition and quality |
| title_short | The influence of commercial tannin additions on wine composition and quality |
| title_sort | influence of commercial tannin additions on wine composition and quality |
| topic | Wine and wine making -- Chemistry Tannins Dissertations -- Agriculture Theses -- Agriculture Dissertations -- Viticulture and oenology Theses -- Viticulture and oenology |
| url | http://hdl.handle.net/10019.1/2482 |
| work_keys_str_mv | AT keulderdanielb theinfluenceofcommercialtanninadditionsonwinecompositionandquality AT keulderdanielb influenceofcommercialtanninadditionsonwinecompositionandquality |