Isaac Scientific Publishing

Advances in Food Science and Engineering

Effect of Storage Ventilation on Bulb Disease of Onion

Download PDF (375.6 KB) PP. 100 - 106 Pub. Date: September 25, 2017

DOI: 10.22606/afse.2017.13002

Author(s)

  • Mukesh Dabhi*
    Research Engineer, AICRP on PHET, Processing and Food Engineering Department, College of Agricultural Engineering and Technology, Junagadh Agricultural University, Junagadh, India
  • Nagin Patel
    Vice Chancellor, Anand Agricultural University, Anand, India

Abstract

'Talaja Red' onion grown in Mahuva Taluka of Bhavnagar district of Gujarat was stored in natural and forced ventilated storage structure to investigate changes in bulb quality and its storability after three months of storage period. Standard procedures were followed in determining the weight loss and assessment of disease of bulbs. Average per cent weight losses were found to be 23.74 and 10.24 percent under natural and forced ventilated storage, respectively. The reduction in percent intensity of black mold in forced ventilated storage varied from 25.15 to 31.48 percent whereas it increased in natural ventilated storage up to 39.01 percent. Soft rot was reduced from 10.79 percent intensity to 3.43 percent intensity under natural and forced ventilated storage, respectively. All the bulbs were infected by black mold in natural ventilated storage whereas 86 percent bulbs were infected in forced ventilated storage. The best results were obtained when onion was stored in forced ventilated storage structure for three months.

Keywords

Onion storage, bulb disease, weight loss, black mold, soft rot.

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