15 articles in this issue
C.M. Sheridan,D. Glasser,D. Hildebrandt,J. Petersen,J. Rohwer
Winery effluent is known to have a high chemical oxygen demand (COD) and a low pH. In this study, weextensively analysed effluent from two cellars and studied the temporal changes over the duration of a harvestand the duration of a year. We found that eth... see more
Y.P. Zhao,L. Wang,J.M. Li,G.R. Pei,Q.S. Liu
The aim of this study was to compare the volatile compounds between Changyu XO and Hennessy XO. Sensoryevaluation was performed by a panel of tasters. Qualitative and semi-quantitative analysis was achieved byheadspace solid phase micro-extraction (HS-SPM... see more
M.C. Goldner,P. di Leo Lira,C. van Baren,A. Bandoni
The aim of this study was to explore the effect of two ranges of polyphenols naturally present in Malbec wine,high concentrations (4.5-7.2 g/L) and low (1.4-3.2 g/L), on the perception of aroma. Samples with a maximumethanol level of 13.5% were taken from... see more
P.P. Coetzee,Greeff L.,F. Vanhaecke
The correlation between the 11B/10B ratio in grapevine leaves and that in the growth medium was establishedin a series of hydroponic experiments with grapevine cuttings for different cultivar/rootstocks combinations.The hydroponic growth medium was altern... see more
S. Di Maio,G. Polizzotto,D. Planeta,D. Oliva
This paper presents a simple method to distinguish between Candida stellata and Saccharomyces cerevisiaeyeasts during microbiological analyses. The method is based on differential yeast growth on a mediumcontaining cycloheximide and a medium containing ly... see more
B. Hernández,C. Sáenz,C. Alberdi,S. Alfonso,J.M. Diñeiro
This research reports on the colour evolution of six rosé wines during sixteen months of storage in the bottle.Colour changes were determined in terms of CIELAB colour parameters and in terms of the common colourcategories used in visual assessment. The c... see more
P. Alberts,M.A. Stander,A. de Villiers
Natamycin is a naturally occurring antifungal agent used to inhibit the growth of moulds and yeasts.Characteristics such as low effective concentrations, broad applicability and neutral flavour impact make thiscompound an ideal preservative. Although wide... see more
J.C. Fourie
Eight cover crop treatments were applied for 12 consecutive years on a medium textured soil in a vineyardnear Robertson (33o50'S, 19o54'E). A treatment with full surface straw mulch combined with full surfacepost-emergence chemical control applied from ju... see more
K. Bindon,P. Myburgh,A. Oberholster,K. Roux,C. du Toit
Grape and wine phenolic composition was monitored over two consecutive seasons in Vitis vinifera cv. Merlotfollowing application of irrigation treatments that produced seasonal average stem water potentials rangingbetween -0.7 MPa and -1.4 MPa. Fresh weig... see more
P.A. Myburgh
The impact of five drip irrigation strategies on water status in Merlot/99R was compared to a non-irrigatedcontrol (T1) in the coastal wine grape region of the Western Cape province, South Africa. Relationships betweenpredawn (?PD), leaf (?L), stem (?S) a... see more
The impact of five drip irrigation strategies on vegetative growth, yield and quality of Merlot/99R was comparedto a non-irrigated control (T1) in the coastal region of the Western Cape province. Irrigations at pea size,véraison and post-harvest, either a... see more
X. Li,B. Yu,P. Curran,S.-Q. Liu
The aim of this study was to compare the chemical and volatile composition of mango wines fermented withSaccharomyces cerevisiae var. bayanus EC1118, S. cerevisiae var. chevalieri CICC1028 and S. cerevisiae var.cerevisiae MERIT.ferm. Strains EC1118 and ME... see more
M.G. Barbagallo,S. Guidoni,J.J. Hunter
The effect of variation in berry size on berry composition was studied in irrigated Syrah/R99 grapevines,located in a temperate area of South Africa. Berries from 45 clusters, sampled from both sides of the canopy(east and west), were weighed to create fo... see more
J.J. Hunter,V. Bonnardot
To optimise the functioning of the grapevine in a specific environment and to improve grape and wine quality,suitability of climatic parameters for key grapevine physiological processes needs to be assessed at fine scales. Thispaper presents methodology u... see more
M.P. Serratosa,A. Lopez-Toledano,M. Medina,J. Merida
Changes in colour fraction of commercially bottled Pedro Ximenez sweet wines, unaged and oxidatively agedin American oak casks and mostly produced in the Montilla-Moriles and Jerez-Xérès-Sherry Designations ofOrigin (Spain), have been studied. The total t... see more