บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects on the steroid glycoalkaloid and chlorophyll contents of ware potatoes of light during lifting and of mechanical damage and storage under shop conditions.

Petersen, H. W.; Christiansen, J.; Nielsen, S.;

SP Rapport Year: 1994 Issue: No. 3 Pages: 15 pp. Ref: 28 ref.

1994

บทคัดย่อ

Effects on the steroid glycoalkaloid and chlorophyll contents of ware potatoes of light during lifting and of mechanical damage and storage under shop conditions.

ABSTRACT :

 

Potatoes cv. Sava were grown in Denmark in 1991, and 2-stage lifting was simulated by lifting tubers on 7 Oct., cleaning them and laying them on the soil for 6 h exposure to sunlight. They were kept in the dark at 12-14 deg C until 25 Oct., then put in cold storage at 3-4 deg and 85-90% RH for about 3 months. After warming to 16 deg , tubers were subjected to mechanical damage or not damaged, and packed in perforated brown plastic bags. They were then stored at simulated extreme shop conditions, 21 deg with 520 lux for 16 h/d for 14 or 24 d. Steroid glycoalkaloid content was not increased by 2-stage lifting compared with direct lifting. It decreased during cold storage, and increased significantly under shop conditions in damaged, but not undamaged, tubers. Peeling and removal of bruises reduced the content to an acceptable level of <40 mg/kg. Artificial light caused greening of tubers under shop conditions.