Summer 2019 (Volume 34, Number 1)
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Here to deliver some timely food for thought on the topic of fermentation ahead of Vintage 2019 is this issue of the Wine & Viticulture Journal.
Erika Syzmanski looks into the non-Saccharomyces yeast Lachancea thermotolerans, revealing the latest research on this yeast, including some from an Australian-French alliance, to see why it has become something of a darling among wine microbiologists looking into non-Saccharomyces options.
The Summer 2019 issue of the WVJ also contains a report by Canadian researchers who have looked into what adding sulfur dioxide at crush does to bacteria and yeast populations in uninoculated ferments and the sensory properties of the resulting wine.
And, finally, the Australian Wine Research Institute’s regular report describes the findings of studies into the effects of co-inoculation of malolactic starter cultures and the use of malolactic nutrients on the efficiency of MLF and wine quality.
In Winemaking we also have two complementary articles: the first is on blending early-harvested fruit with regularly harvested fruit to lower alcohol levels and how the composition of those wines compares with the same wines dealcoholised post-fermentation; the second looks at the effectiveness of water additions to lower high sugar concentrations in Shiraz to reduce the alcohol content of wines and what impact that has on the wine’s sensory qualities.
We also present the results of the investigations by a team researchers from South Australia and New South Wales into whether berry cell death increases under higher temperatures and water stress – a prudent question in a world where heatwaves and droughts are increasing in frequency and intensity.
Industry Association Columns
- WINE AUSTRALIA (Liz Waters): Keeping the bugs out of the system
- WFA (Tony Battaglene): Preserving our right to market and sell wines
- ASVO (Anthony Robinson): The ASVO 2018 Awards for Excellence
- ERIKA SYZMANSKI: Lachancea thermotolerans: anything but Saccharomyces with a strong dose of lactate
- How sulfur dioxide addition at crush can affect wine yeasts, bacteria and sensory attributes
- Winery wastewater treatment – troubleshooting for sustainable management
- Chardonnay ‘hazelnut’ aromas: current research review
- Investment in refrigeration efficiency upgrades – payback is sooner than you think
- Low alcohol wines: blending with an early harvest or dealcoholisation of a later harvest?
- Managing high Baume juice using dilution
- AWRI REPORT: Trials and tribulations of MLF: can timing of inoculation and MLF nutrients help?
- Are berries suffocating to death under high temperature and water stress?
- Why varietal diversity is critical to winegrowing’s warmer future
- Rootstock salt exclusion at elevated rootzone temperature
- ALTERNATIVE VARIETIES: Pinotage
Business & Marketing
- Inaugural direct-to-consumer survey identifies opportunities for wineries to connect with consumers and increase sales
- What brings a Chinese alcohol drinker into the wine category?
- Snapshot of key trends in the Australian and global wine sector