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Now showing items 1-7 of 7
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Oxygen and sulphur dioxide additions to Sauvignon blanc : effect on must and wine composition
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Sauvignon blanc wines have become increasingly popular in South Africa as it is a cultivar that can be easily manipulated in the vineyard and cellar to produce a range of wine styles. These wines are ... -
Optimization and evaluation of heterologous lysozyme production in saccharomyces cerevisiae
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Hen egg white lysozyme (HEWL; muramidase; EC 3:2:1:17) is an enzyme present in high concentrations in chicken (Gallus gallus) egg whites. It hydrolyses the link between N-acetylmuramic acid and ... -
Molecular and phenotypic characterisation of grapevines expressing non-vinifera PGIP encoding genes
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Plants are constantly exposed to biotic and abiotic stress inducing factors that threaten their existence. Biotic factors such as pathogens are the cause of huge yield losses to crop plants worldwide ... -
The influence of different winemaking techniques on the extraction of grape tannins
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Grape and wine phenols consist of flavanols which is the building blocks for tannins. These building blocks are called monomers which consist of catechins, epicatechins, epigallocatechins and ... -
Identification of terroirs in the Robertson valley for Chardonnay and Shiraz : a focus on soil and roots
(Stellenbosch : University of Stellenbosch, 2011-03)ABSTRACT: The grapevine must constantly find a balance between two continually changing environments, the rhizosphere (i.e. soil) and the troposphere (i.e. macroclimate). The adaptations are extremely complex because ... -
Evaluation of transgenic grapevine lines overexpressing Vv-AMP1 antifungal peptide
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: The importance of small antimicrobial peptides in the innate immune system of plants became increasingly apparent over the past decade. Antimicrobial peptides are unique and diverse molecules that are ... -
Authentication of Sauvignon blanc wine in terms of added flavourings
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: The varietal character of Sauvignon blanc wine is mostly defined by the balance between tropical and green vegetative flavour nuances. Grape derived methoxypyrazines are the main aroma contributors ...
