Binary probiotic fermentation promotes signal (cyclic AMP) exchange to increases the number of viable probiotics, anthocyanins and polyphenol content, and the odor scores of wolfberry fermented beverages.

This research explores the quality enhancement of wolfberry fermented beverages (WFB) using binary probiotics (Lactiplantibacillus plantarum subsp. plantarum CGMCC 1.5953 and Lacticaseibacillus casei CGMCC 1.5956). The original study reports that binary fermentation promotes cyclic AMP signal exchange, increasing probiotic counts, anthocyanins (89.92 ± 1.64 mg/L), polyphenol content (283.04 ± 3.81 µg/mL), and odor scores (24.19). From an engineering and signal processing perspective, the core challenge lies in analyzing the complex multi-dimensional signal outputs generated by Headspace Solid-Phase Microextraction Gas Chromatography-Mass Spectrometry (HS-SPME-GC-MS) and Gas Chromatography-Ion Mobility Spectrometry (GC-IMS). These analytical techniques produce intricate spectral datasets representing volatile flavor compounds, such as 3-heptanol, glutaraldehyde, and 2-undecanone. For M.Tech research, we provide

guidance on structuring the signal processing pipeline, including baseline correction, denoising, peak alignment, and chemometric pattern recognition (such as PCA or PLS-DA) to classify and quantify these volatile profiles. This support helps students model the metabolic pathways and signal exchanges computationally, bridging biotechnology with advanced signal analysis.

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