บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Control of postharvest decay and browning of litchi fruit by sodium metabisulphite and low pH dips - an update.

Duvenhage, J. A.;

Yearbook - South African Litchi Growers' Association Year: 1994 Vol: 6 Pages: 36-38 Ref: 1 ref.

1994

บทคัดย่อ

Control of postharvest decay and browning of litchi fruit by sodium metabisulphite and low pH dips - an update.

ABSTRACT :

 

Under experimental conditions, fruits of cultivars Mauritius and Madras were dipped in Na2S2O5 (60 g/litre) for 10 min, followed by 4% HCl for 2 or 5 min, 4 or 10% acetic acid for 5 min or vinegar for 5 min. Commercially SO2-fumigated fruits were also included in the trial. Control fruits received no treatment. All fruits were stored at 1 deg C for 28 days, followed by 3 days at 20 deg before evaluation of diseases, browning, colour and flavour. Under semi-commercial conditions, ungraded fruits were treated while in picking crates by either SO2-fumigation (controls) or with an Na2S2O5 dip (as before) followed by a 4% HCl dip for 3 min. After sorting, grading and packing in 2-kg boxes, these fruits were sorted as in the first trial. Under experimental conditions, Na2S2O5 gave good results (comparable to SO2-fumigation) for both cultivars. Under semi-commercial conditions, Na2S2O5 gave good results for Mauritius, but not for Madras (possibly due to poor fruit quality).