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Quality variation patterns in reclaimed pedunculated filament backfill solution during storage.

Yudong Yin¹, Xuan Mai^2,3, Jiang Li¹

¹China Tobacco Jiangsu Industrial Co., Ltd., Nanjing, China.

Frontiers in Plant Science

|May 21, 2026

Summary

Storage of reclaimed backfill solution from tobacco manufacturing leads to microbial shifts and quality deterioration by day 5. Key metabolites and microbial communities change, impacting its stability and reuse potential.

Keywords:

microorganism quality reclaimed pedunculated filament backfill solution storage variation patterns

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Area of Science:

Industrial Microbiology
Biochemistry
Environmental Science

Background:

Reclaimed backfill solution from tobacco manufacturing offers resource recovery potential.
Storage stability and deterioration mechanisms of this solution are not well understood.

Purpose of the Study:

To investigate storage stability and quality variation patterns of reclaimed backfill solution.
To identify microbial community shifts, metabolite changes, and quality deterioration points during storage.

Main Methods:

Amplicon high-throughput sequencing for microbial community analysis.
Untargeted metabolomics for differential metabolite and pathway identification.
Monitoring of key quality indicators over storage time.

Main Results:

Dominant bacteria (Tuberibacillus, Bacillus, Lactobacillus) and fungi (Aspergillus, Sampaiozyma, Boeremia) varied with storage stage.
Fourteen altered metabolites were identified, with fatty acyl compounds enriched in unsaturated fatty acid biosynthesis.
Deterioration began on day 5, marked by increased alkaloids and pH, decreased sugars and acid value.

Conclusions:

Microbial community structure shifts correlate with metabolite variation and quality deterioration.
Day 5 is a critical turning point for the decline in reclaimed backfill solution quality.
Findings offer insights for managing and controlling similar plant-based liquid systems.