Potential of Thermal Sanitation of Stored Wheat Seeds by Flash Dry Heat as Protection Against Fungal Diseases

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0200119" target="_blank" >RIV/00216305:26210/26:0200119 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2076-3417/16/2/639" target="_blank" >https://www.mdpi.com/2076-3417/16/2/639</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app16020639" target="_blank" >10.3390/app16020639</a>

Result language

angličtina

Original language name

Potential of Thermal Sanitation of Stored Wheat Seeds by Flash Dry Heat as Protection Against Fungal Diseases

Original language description

The presented study aims to experimentally investigate the potential of flash sanitation (short time exposure to hot air stream) for wheat seeds to control surface contamination and protect against fungal diseases. Experiments were conducted at the laboratory scale using very short residence times (2–4 s) and higher temperature range (150–350 °C) of dry air stream at two different flow rates (280 L/min and 557 L/min). The goal was to identify thermal conditions that provide high sanitation efficiency while maintaining seed viability. A design of the experiment approach, employing central-composite design and face-centred response surface methodology, was used to evaluate the effects of the thermal treatment on seed surface temperature, sanitation efficiency, and germination capabilities. Higher air flow rate (557 L/min) significantly increased post-treatment seed surface temperatures (42.1–122.7 °C) compared to the flow rate of 280 L/min (36.7–80.5 °C). Pronounced germination drops were observed with air temperatures above 175 °C. Satisfactory sanitation efficiency >90% was achieved only with high-temperature air >250 °C, which, however, caused unacceptable germination loss. Extending residence time beyond the experimental plan is unlikely to yield significant benefits, as the factor was identified as weak and insignificant compared to temperature. Higher flow rates improve heat transfer but require strict control to prevent variability affecting seed quality. The heating media flow rate should be considered an essential factor in thermal treatment studies. Dry air has not proven to be appropriate for seeds’ flash sanitation within the selected experimental condition framework.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

<a href="/en/project/QK22010200" target="_blank" >QK22010200: Thermic Sanitation of Seeds as Protection against Fungal Diseases and Pests</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2026

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Sciences-Basel

ISSN

—

e-ISSN

2076-3417

Volume of the periodical

16

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

25

Pages from-to

1-25

UT code for WoS article

001671949400001

EID of the result in the Scopus database

2-s2.0-105028786494