Inhibition of Patulin Production with the Insecticide Naled.

Area of Science:

• Food Science
• Mycology
• Toxicology

Background:

• Patulin is a mycotoxin produced by various fungi, posing a potential risk to human health.
• Fungal contamination and mycotoxin production are significant concerns in food safety.

Purpose of the Study:

• To evaluate the efficacy of the insecticide naled in inhibiting fungal growth and patulin production.
• To determine the impact of naled concentration and application timing on patulin inhibition.

Main Methods:

• Testing three concentrations of naled (1, 10, 100 mg/l) against Penicillium urticae.
• Applying naled at various times: before inoculation and during different stages of fungal growth.
• Assessing patulin production and fungal mycelial growth in culture and on apples.

Main Results:

• Naled at 100 mg/l completely inhibited fungal growth and patulin production when applied before inoculation.
• Naled significantly reduced patulin production (59% at 10 mg/l) when applied at inoculation.
• Application of naled after 6 days of fungal growth resulted in 25-35% inhibition of patulin production.

Conclusions:

• Naled demonstrates high effectiveness and long-term activity in inhibiting patulin production.
• The timing of naled application is crucial; pre-inoculation application yields complete inhibition.
• Naled shows potential as a control agent against patulin contamination in food products.