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KMID : 0903519930360040265
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1993 Volume.36 No. 4 p.265 ~ p.270
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Prevention from microbial post - harvest injury of fruits and vegetables by using grapefruit seed extract , a natural antimicrobial agent
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Abstract
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In order to retain the freshness of fruits and vegetables and to reduce the rate of disease damage, grafruit seed extract (GFSE), natural microorganism control agent, was applied during the preservation process of fresh fruits and vegetables. GFSE showed an effective inhibitory action against plant putrefactive bacteria and fungi which were involved in the decay of fruits and vegetables. Minimal inhibitory concentrations for GFSE against the microbes were in the range of 50 to 2,000 ppm. Direct observation of microbial cells and spores using electron microscopy showed their function was destroyed by the treatment of the dilute solutions of GFSE. Fresh Welsh onions, onions and red peppers treated with GFSE and stored in polyethylene film (0.1 ㎜) retained better quality in color and texture than the non-treated control. GFSE was efficient in controlling the germination of potatoes. It was observed that GFSE would reduce disease damages and have bactericidal and fungicidal properties during the storage of such fruits and vegetables as zucchinis, cucumbers, tomatoes and mandarin oranges.
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KEYWORD
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