Simplified wine analysis for walkaway efficiency

Importance of the topic

The control of multiple chemical parameters throughout vinification is essential to produce consistent, high‑quality wine and to meet regulatory and sensory targets. Rapid, reliable in‑house analytics enable timely process decisions at harvest, during fermentation, aging and bottling. Consolidated, automated multiparameter testing reduces dependence on external laboratories, lowers turnaround time, minimizes waste, and supports cost‑effective quality assurance in wineries and wine testing labs.

Objectives and overview of the article

The source document presents the Thermo Scientific Gallery discrete analyzer platform and matching ready‑to‑use system reagents as an integrated solution for routine wine and juice analysis. The primary aims are to: consolidate multiple wet‑chemistry and enzymatic assays on a single automated platform; reduce operator skill and hands‑on time; lower sample and reagent consumption; increase throughput; and deliver traceable, reproducible results tailored to oenological workflows from juice to bottling.

Methodology and analytical approach

The Gallery platform uses discrete cuvette technology: DECACELL disposable strips contain ten independent reaction cells enabling truly discrete assays without wash steps. Photometric enzymatic and colorimetric chemistries optimized for wine matrices are performed in low‑volume cuvettes (2–240 µL reagent volumes; sample consumption typically ≤300 µL/test). An optional electrochemistry module (ECM) enables parallel pH and conductivity measurements. Assays are run in parallel and in batch with automated dispensing, mixing, incubation and photometric readout (340–880 nm; multiple filters). Instrument software supports barcode tracking, automated calibration, over‑range dilutions, LIMS import/export and consolidated reporting.

Used instrumentation

• Thermo Scientific Gallery discrete analyzer (sample/reagent disk combined); capacity: up to 90 samples and 30 reagents; throughput up to ~200 tests/hr.
• Thermo Scientific Gallery Plus discrete analyzer (separate disks); capacity: up to 108 samples and 42 reagents; throughput up to ~350 tests/hr.
• DECACELL disposable cuvette strips (10 reaction cells per strip).
• Optional electrochemistry module (ECM) for parallel pH and conductivity.
• Xenon lamp light source (long‑life, broad spectral coverage).
• Barcode readers for samples and reagent vials; ready‑to‑use, bar‑coded reagent kits and calibrators.

Main results and discussion

The Gallery platform consolidates many common oenological assays on one instrument. Key performance and operational outcomes highlighted in the material include:

• Multiparameter capability: up to ~20 photometric parameters per sample (examples: organic acids, sugars, glycerol, SO2, ammonia, metal ions, total polyphenols, color, alcohol (low range), NOPA, YAN).
• High throughput: 200–350 photometric tests per hour depending on model; ECM enables up to ~67 pH measurements/hr in parallel with photometric tests.
• Low sample and reagent consumption: minimal volumes reduce waste and per‑test cost; claimed cost per analysis 10–20× lower than traditional wet chemistry workflows.
• Operational advantages: walkaway automation, simplified workflows suitable for non‑specialist operators, integrated barcode traceability, and LIMS connectivity.
• Method alignment: assays use established enzymatic and colorimetric chemistries adjusted to concentrations relevant to wine and aligned with international reference methods (OIV, AOAC, ISO, DIN, EBC) where applicable.

Limitations and practical considerations noted or implied include:

• Not all analytes measured by chromatographic or instrumental techniques (e.g., detailed volatile profiles, complex multi‑component separations) are replaced by discrete photometric assays—complementary techniques (HPLC, GC, IC) remain necessary for specific analyses.
• Some reagents or specialty assays may be third‑party or require in‑house validation; routine instrument validation and calibration remain necessary.
• Matrix effects in wine (e.g., colored samples, turbidity, high alcohol) may require appropriate sample preparation or verification of method linearity and accuracy.

Benefits and practical applications

The Gallery discrete analyzers are presented as a practical tool for wineries and QC laboratories, delivering these principal benefits:

• In‑house, near‑real‑time decision support across stages: harvest/juice, fermentation, malolactic conversion, aging, filtration and bottling.
• Reduced dependency on highly specialized personnel and external labs; easier training and operation for routine staff.
• Lower operational costs through reduced reagent/sample consumption, less waste disposal, and higher throughput.
• Improved process control: frequent, multiparameter testing enables monitoring of sugars, organic acids, SO2, pH, nitrogen compounds (YAN), and other process‑critical parameters to optimize fermentation and prevent spoilage.
• Traceability and lab integration via barcodes and LIMS connectivity support QA/QC and regulatory recordkeeping.

Future trends and applications

Adoption of discrete multiparameter platforms in enology is likely to evolve along several directions:

• Greater integration with digital systems and predictive analytics to convert frequent analytical snapshots into process control actions and forecasting (e.g., fermentation trajectory prediction, spoilage risk alerts).
• Expansion of validated assay menus and improved matrix‑robust reagent chemistries to cover more analytes and complex matrices without additional preparative steps.
• Improved miniaturization and further reductions in reagent volumes to lower environmental impact and cost per test.
• Hybrid analytical workflows coupling high‑throughput discrete screening with confirmatory chromatographic or spectrometric methods when detailed compositional data are required.
• Stronger emphasis on standardized methods and inter‑laboratory harmonization for routine oenological parameters to support regulatory compliance and product comparability.

Conclusion

For wineries and wine testing laboratories seeking to increase throughput, reduce costs and improve responsiveness across the vinification process, automated discrete analyzers with ready‑to‑use reagents offer a compelling solution. The Gallery platform combines low‑volume, disposable cuvettes, broad assay coverage, and strong automation to enable frequent, multiparameter testing by non‑specialist staff. While not a replacement for all chromatographic or instrumental methods, discrete photometric analysis provides an efficient backbone for routine QC and process control from harvest through bottling.

References

• Thermo Fisher Scientific. Simplified wine analysis for walkaway efficiency — Thermo Scientific Gallery discrete analyzers and Gallery system reagents. Product brochure BR73909‑EN, 2021.
• Relevant method standards cited in source material: OIV, AOAC, DIN, ISO, EBC (method groups referenced for assay alignment).