บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effect of ethephon, sodium chloride and acetic acid on quality of Mazafati date fruits.

Shamshiri, M. H.; Rahemi, M.;

Iranian Journal of Agricultural Sciences Year: 1999 Vol: 29 Issue: 4 Pages: 777-785 Ref: 19 ref.

1999

บทคัดย่อ

Effect of ethephon, sodium chloride and acetic acid on quality of Mazafati date fruits.

To determine the effect of postharvest treatments on ripening and quality of date fruits, ethephon, sodium chloride, acetic acid were applied to Mazafati date fruits. Fruits were harvested at the end of khalal stage from a commercial orchard in Bam, Iran. Immediately after harvest, fruits were washed and fumigated with methyl bromide and then were treated with ethephon (0, 500, 1000, 1500, 2000 or 2500 ppm), acetic acid (2%), sodium chloride (2%), or a combination of 2% acetic acid + 2% sodium chloride. Treated fruits were stored at 38-40 deg C, RH 85-90% for 72 h and then transferred to cold storage (0 plus or minus 1 deg C, RH 85-90%) for 3 months. Ethephon significantly increased total soluble solids (TSS), but had no significant effect on other parameters. Sodium chloride and acetic acid either separately or combined significantly increased TSS and reduced fruit firmness and moisture content. Acetic acid at 2% had a better effect on fruit ripening than sodium chloride, but fruits that were t

reated with sodium chloride were better in appearance. In both experiments, storage of treated fruits at 38-40 deg C, RH 85-90% for 3 days significantly induced ripening, increased TSS and decreased fruit firmness. Treated fruits after 3 months of storage at 0 plus or minus 1 deg C, RH 85-90% were good to eat and looked appetizing. It is concluded that treating date fruits at the end of the khalal stage with 2% sodium chloride and storing then at 38-40 deg C and RH 85-90% for 3 days is a fast and economical method for artificially ripening Mazafati dates.