บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Changes in organic acids of fruits after different treatments.

Kovacs, E.; Djedjro, G. A.;

Acta Horticulturae Year: 1994 Issue: No. 368 Pages: 251-261 Ref: 14 ref.

1994

บทคัดย่อ

Changes in organic acids of fruits after different treatments.

ABSTRACT :

 

The content and composition of organic acids were determined in apples (cultivars Gloster, Starking and Mutsu [Crispin]) and apricots (cultivars Cegledi Biborkajszi, Csongradi kajszi, Gonci Magyar kajszi and Nagykorosi orias) during cold storage for up to 21 weeks. Some of the fruits were irradiated with gamma rays (apples 0.5-5.0 kGy, apricots 0.15-2.0 kGy) or treated with 0.5-5.0% CaCl2 (apples only). Malic, ascorbic, citric and succinic acid were identified in both species although the content of each varied between species. The content of malic acid and ascorbic acid decreased during storage and with increasing radiation dose in apples. Ca treatment reduced the degradation of malic acid and ascorbic acid in apples. Succinic acid and citric acid increased during storage. In apricots, malic acid content decreased during storage; there was no correlation between malic acid content and radiation dose. The citric acid content of apricots increased during storage but was not affected by irradiatio

n treatment. The radiosensitivity of the organic acids was investigated.