▲ 6 r/cider

Schizosaccharomyces in apple juice produced 4–6% ethanol, high glycerol, and rapid malic acid loss with ester-rich aromas

Takács et al. examined Schizosaccharomyces strains in apple juice to assess their potential for cider production, with a focus on acid management, mouthfeel, and aroma development.

For cider makers, this is relevant because malic acid reduction, ethanol formation, and volatile profile all shape balance and drinkability, especially in high-acid juices. Across the tested species, fermentation in apple juice reached 4–6% (v/v) ethanol. The strains also produced high glycerol and removed malic acid efficiently, giving rapid deacidification without a major volatile acidity tradeoff. Acetic acid stayed comparable to the Saccharomyces bayanus control. VOC analysis showed ester-rich profiles with fruity, banana-like, and pineapple-like notes, including both shared and species-specific aroma signatures.

Practically, these results suggest Schizosaccharomyces could be useful where lower perceived acidity, fuller mouthfeel, and novel fruit-forward character are desired. Their tolerance of 15–30% glucose and growth at 15 °C also points to potential in mixed-culture fermentations and cold-fermented fruit beverages.

More broadly, these yeasts may be useful for high-acid fruit musts where malic acid reduction is needed without sacrificing sensory complexity.

Full paper: https://doi.org/10.1016/j.ijfoodmicro.2026.111991

Source: ResearchScan — free weekly research newsletter covering cider production science | researchscan.news

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u/ReseachScan — 9 days ago
▲ 16 r/Kombucha+1 crossposts

Sucrose-free kombucha with fruit residues stayed under 0.5% ethanol for 30 days and held its sensory profile

Linhares et al. studied how sucrose-free kombucha-style fermentation behaves when fruit residues are used instead of added sugar, with an eye toward beverage science, low-alcohol compliance, and ingredient reuse.

The interesting part is it’s a broader fermentation strategy for shaping flavor, supporting microbial activity, and keeping products stable across storage in fruit-based and cider-adjacent beverages. Removing sucrose significantly lowered total phenolic compounds during fermentation, suggesting active microbial biotransformation and cleavage of bound polyphenols. Even so, the fruit residues supported late-stage fermentation dynamics and produced beverages whose chemical profiles stayed relatively stable over 30 days of cold storage.

Ethanol remained below the 0.5% v/v non-alcoholic threshold in all developed beverages, and sensory results showed that the fruit matrices largely determined appearance and complex flavor.

Practically, this supports fruit residues as both a flavoring and functional substrate for brewing and low-alcohol fermentation. That matters for cleaner labels, waste valorization, and shelf-stable products that stay within regulatory alcohol limits. The approach could be useful for kombucha-style drinks, and it may also inform cider- and wine-adjacent product development where fruit-derived materials help build flavor without pushing ethanol too high.

Full paper: https://doi.org/10.3390/fermentation12080343

Source: ResearchScan — free weekly research newsletter covering fermentation science across all beverage types | researchscan.news

u/ReseachScan — 16 days ago

This week in alcoholic beverages research

🍺 Brewing

The BGAL system carbonated beer 3 to 50 times faster than conventional carbonation, with the magnitude depending on the operating conditions of the standard method. Finished beer analysis showed hop oil compound concentrations were statistically similar between BGAL-carbonated beer and conventionally carbonated beer.

Jean et al.

https://doi.org/10.58430/jib.v132i2.98

🥃 Distilling

Whisky distilling wastes are identified as promising feedstocks for hydrogen production because they are generated in large volumes and contain substantial organic material. The review highlights hybrid process routes, especially biological pretreatment followed by reforming or two-stage electrolysis, as the most promising options for small- to medium-scale distilleries. Key barriers remain hig...

Moon et al.

https://doi.org/10.64823/ijter.2607010

🥤 Low & No-Alcohol

Higher glutinous rice substitution restricted enzymatic saccharification and reduced ethanol production, with R60 and R80 staying below the 0.5% v/v non-alcoholic threshold. Final ethanol levels were 1.34%, 0.65%, 0.40%, and 0.13% v/v for R0, R40, R60, and R80, respectively. S. boulardii fermentation increased bioactive compounds across all substituted beers, while higher rice levels reduced fe...

Khamfu et al.

https://doi.org/10.3390/fermentation12070340

🍎 Cider

SO2 did not affect fermentation kinetics, nitrogen utilization, ethanol yield, or volatile composition, and net ORP area under the curve was not different between treatments. However, SO2 lowered pre-fermentation ORP, preserved monomeric and dimeric phenolics, increased sulfonated flavan-3-ols, and inhibited malolactic fermentation. Sensory results suggested more banana aroma in the control cid...

Wright et al.

https://doi.org/10.20944/preprints202607.1291.v1

🌿 Hops

The review argues that hop compounds respond differently to temperature, time, pH, oxygen, solids, and yeast, so beer quality emerges from coupled extraction, reaction, separation, and microbial processes rather than isolated unit operations. In the pilot whirlpool case, extending residence from 20 to 120 min coincided with higher final-beer bitterness, a marked increase in myrcene, modest chan...

Kishimoto et al.

https://doi.org/10.26434/chemrxiv.15006329/v1

🍶 Asian Fermented & Distilled Beverages

The selected indigenous strains showed stable fermentation performance and produced 17-19% (w/v) alcohol. Cheongju fermented with these strains had higher fruity ethyl ester levels, while acetate ester formation was not significantly different from the reference. Electronic tongue analysis also indicated reduced bitterness and a modest increase in umami-related attributes, and the strains showe...

Park et al.

https://doi.org/10.58430/jib.v132i2.100

💡 Spotted in this week's peer-reviewed literature. More at researchscan.news

u/ReseachScan — 28 days ago

Ultrasound-assisted oak aging cut white wine maturation costs to €0.05–€0.07/L while increasing phenolic extraction

We found a recent study by Luchian et al. in Foods which examined whether ultrasound-assisted oak contact could deliver the phenolic and sensory benefits of wood aging in white wine at lower cost and in less time.

The results were strong.

Oak fragment type and contact time significantly influenced phenolic extraction, but ultrasound accelerated the process and improved efficiency. Gallic acid increased from 1.54 ± 0.03 to 4.41 ± 0.12 mg/L, while syringaldehyde rose from 1.13 to 1.44 mg/L.

Ultrasound also helped limit flavan-3-ol losses to ≤28%, compared with up to 34% under conventional oak treatments. On the economics side, production costs dropped from €0.21–€0.56/L to €0.05–€0.07/L with ultrasound, and the cost-efficiency metrics favored the ultrasound-plus-oak approach.

Practically, this suggests a viable way to shorten maturation cycles, reduce barrel dependence, and still achieve meaningful oak-derived complexity.

It looks especially relevant for premium white wines, where controlled wood extraction, lower storage cost, and sustainability would matter.

Full paper: https://doi.org/10.3390/foods15101709

Found via: ResearchScan which is a free weekly research newsletter covering wine science and winemaking research we have been building. Check out under researchscan.news

u/ReseachScan — 3 months ago