Simple smartphone-based methods for the determination of bioactive compounds in wine

Area of Science:

• Analytical Chemistry
• Food Science
• Environmental Science

Background:

• Accurate determination of bioactive compounds is crucial for wine quality control and authenticity.
• Existing analytical methods can be complex, expensive, and not suitable for field applications.
• Development of accessible and portable analytical tools is needed for widespread wine analysis.

Purpose of the Study:

• To develop and validate simple smartphone-based methods for determining key bioactive compounds in wine.
• To assess the feasibility of using a 3D-printed device for portable wine analysis.
• To compare the performance of smartphone-based methods with traditional spectrophotometry.

Main Methods:

• Development of smartphone-based protocols for quantifying total phenolic compounds, flavonoids, anthocyanins, and biogenic amines.
• Measurement of antioxidant activity using smartphone-based detection.
• Validation of the developed methods, including linearity, recovery, precision (RSDs), and limits of detection (LODs).
• Utilizing a simple experimental setup comprising a smartphone and a 3D-printed device.

Main Results:

• Validated smartphone-based methods demonstrated high linearity (R²: 0.9860-0.9981).
• Satisfactory recovery rates (98.6-102%) and precision (RSDs ≤ 4.2%) were achieved.
• Low limits of detection (LODs < 2.3 mg/L) were obtained for the analyzed compounds.
• Comparable results were observed between smartphone-based analysis and traditional spectrophotometry for real wine samples.

Conclusions:

• Smartphone-based methods provide a simple, accurate, and portable solution for wine analysis.
• The developed techniques are suitable for both laboratory and field applications, enhancing accessibility to wine quality assessment.
• These methods offer a cost-effective and efficient alternative to conventional analytical techniques for bioactive compound determination in wine.