ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Potassium bicarbonate reduces postharvest decay development on bell pepper fruits.

Fallik, E.; Grinberg, S.; Ziv, O.;

Journal of Horticultural Science Year: 1997 Vol: 72 Issue: 1 Pages: 35-41 Ref: 17 ref.

1997

บทคัดย่อ

Potassium bicarbonate (PBC) inhibited in vitro mycelial growth, spore germination and germ tube elongation of Botrytis cinerea and Alternaria alternata. Germ tube elongation was more sensitive to elevated PBC concentrations than mycelial growth and spore germination, as measured by EC50. Treatment with PBC resulted in shrinkage and collapse of hyphae and spores, and consequent inability of fungi to sporulate. PBC action was fungistatic rather than fungicidal. Dipping commercially harvested sweet red peppers for 2 min in 1 or 2% potassium bicarbonate reduced decay development after storage and shelf life simulation to a commercially acceptable level of 5-8% compared with untreated or water-dipped controls. Higher concentrations of PBC (3%) significantly reduced fruit quality.