16 articles in this issue
This ia a pre-publication for Vol40, No.2(2019)
J.B. de Oliveira,R. Egipto,O. Laureano,R. de Castro,G.E. Pereira,J.M. Ricardo-da-Silva
Over the years, viticulture has expanded to new regions outside the temperate zones, such as Northeast Brazil, India, Thailand, Myanmar, Vietnam, Bangladesh and Venezuela, characterized by the production of tropical wines. It is important for the producti... see more
P. Gago,G. Conejero,M.C. Martínez,P. This,J.L. Verdeil
Grenache Noir and Syrah are two of the grapevine (Vitis vinifera L.) cultivars used to a great extent worldwide. They have very different leaf morphologies from an ampelographic (botanical) point of view. This might also be related to differences in... see more
V.N Radovanovic,M. Andjelkovic,B. Arsic,A. Radovanovic,L. Gojkovic-Bukarica
By using cost-effective ultrasonic extraction techniques, bioactive phenolic extracts were obtained from Merlot and Vranac (Vitis vinifera L.) vine and wine waste produced in Serbian wineries. These wastes include vine leaves, grape pomace, seeds, skins a... see more
F.A. Bruwer,W. du Toit,A. Buica
The effects of fertilisation can reverberate from grapes through to wines. In wine, non-volatile compounds mainly influence the taste and flavour of wines, while volatile compounds play an important role in the aromatic expression. This review includes in... see more
E. Allsopp,J.C. Fourie
Grapevine leafroll is the most damaging grapevine virus disease in South Africa, and the primary vector of Grapevine leafroll-associated virus 3 (GLRaV-3) is vine mealybug, Planococcus ficus (Signoret). Preventing re-infection of newly planted, virus-free... see more
G. Petrovic,J.L. Aleixandre-Tudo,A. Buica
The present study aimed to elucidate the amino acid profile of a number of grapevine cultivars relevant to the South African wine industry using 738 grape must samples obtained during the 2016 and 2017 harvests. Proline and arginine were found to be... see more
S. Fairbairn,A. C. Silva Ferreira,F. F. Bauer
Unsaturated fatty acids and sterols are essential constituents of the yeast plasma membrane. Recently, their contribution to modulating the production of yeast-derived volatile compounds has received significant attention. The objective of this study was ... see more
M. Akkurt,H. Tahmaz,S. Veziroglu
Grapes are one of the most commonly produced fruit crops in the world and are consumed as table grapes, wine grapes and dried grapes. In line with consumer demands, seedlessness continues to be an important feature that increases the chances of marketing ... see more
G. G. Garrido-Bañuelos,A. Buica,E. Sharp,A. de Villiers,W. J. du Toit
Colour and phenolic stability during ageing are influenced by the levels of distinct classes of phenolics in young red wines. The ratios between different classes of phenolic compounds also determine the colour and phenolic development of red wines. The p... see more
G. Gutiérrez-Gamboa,A.G. Pérez-Donoso,A. Pou-Mir,C. Acevedo-Opazo,H. Valdés-Gómez
In the near future, stomatal behaviour will be crucial to counteract conditions arising from climate change. Grapevine varieties are classified as either isohydric or anisohydric, depending on the sensitivity of stomatato water deficit and on their ... see more
M. McKay,F.F. Bauer,V. Panzeri,L. Mokwena,A. Buica
Malodourous compounds, including volatile phenols (VPs) are frequently found at concentrations below their odour thresholds in wine, and may therefore be considered to present no threat to wine quality. Most investigations into smoke taint quantify compou... see more
A.R. Mulidzi,C.E. Clarke,P.A. Myburgh
Most wineries in South Africa dispose of their wastewater through land application. This is carried out by irrigating small areas of cultivated pasture with the wastewater or ponding, with the former being the more general practice. Land application of wi... see more
Y. Zhou,P. Su,H. Yin,Z. Dong,L. Yang,C. Yuan
Due to the special climate conditions in the Qingtongxia region, grapes are high in sugar and low in titratable acidity from the stages of ripening. Therefore, the common methods used for determining the maturity of grapes, which depend on the ratio of su... see more
A. Fernandes de Oliveira,F. Rais,I. Dettori,M. Azzena,G. Nieddu
The photosynthetic and photochemical adaptation of grapevine leaves to high UV radiation, under hot and dry summer conditions, was investigated in near-isohydric Cannonau (syn. Grenache) and nearanisohydric Bovale grande (syn. Carignan). From pea-size sta... see more
L.A.I. Steyn,P. Addison,A.P. Malan
The Cape grapevine leafminer, Holocacista capensis, a sporadic pest of economic importance, is found in South African table and wine grape vineyards. The cocoon casings, constructed by the final instar larvae, can be found attached to grape bunches, posin... see more