Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Sustainable Lignin@ZnO Hybrid Materials: Synthesis, Characterization, and Preliminary Biostimulant Assessment in Tomato Plants

Marianna Vescovi, Monica Maffini, Suvi Pietarinen, Giuliano Leonardi, A. Migliori, Sheridan L. Woo, Gelsomina Manganiello, Stefania Lanzuise, Marianna Michelino, Maria Careri, Paolo Pelagatti, Dominga Rogolino

Advanced Sustainable Systems · 2025

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Summary

This study synthesises lignin@ZnO hybrid materials using Kraft lignin as a capping agent via an ecofriendly protocol, combining the bioactive polyphenolic properties of technical lignin with zinc micronutrient delivery. In vivo trials on tomato plants demonstrated enhanced dry shoot weight and improved zinc translocation to aerial parts compared to zinc oxide alone, suggesting the hybrid material functions as an effective controlled-release biostimulant. The work demonstrates the potential for repurposing agro-industrial lignin waste as a value-added agronomic input within circular economy frameworks.

Regional applicability

The study does not specify a geographic location of field trials. The synthesis methodology and materials characterisation are location-independent and transferable. UK horticultural producers could potentially benefit from the hybrid material's zinc delivery properties, though local field trials would be needed to validate efficacy in UK soil and climate conditions, particularly for protected tomato cultivation.

Key measures

Dry shoot weight; zinc translocation to aerial parts; structural integrity of lignin matrix; morphology of ZnO nanoparticles

Outcomes reported

The study evaluated the synthesis and characterisation of lignin@ZnO hybrid materials and assessed their biostimulant potential in tomato plants. Measurements included dry shoot weight and zinc translocation to aerial plant parts, comparing the hybrid material against zinc oxide alone.

Theme
Nutrition & health
Subject
Micronutrient biofortification
Study type
Research
Study design
Laboratory / in vitro synthesis with in vivo field trial
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Horticulture
DOI
10.1002/adsu.202500399
Catalogue ID
SNmonutbqj-vpje53

Topic tags

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