ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Physiological postharvest responses of sage (Salvia officinalis L.).

Bottcher, H.; Gunther, I.;

Zeitschrift fur Arznei- & Gewurzpflanzen Year: 1999 Vol: 4 Issue: 3 Pages: 119-125 Ref: 18 ref.

1999

บทคัดย่อ

Results from 5 trials indicated that freshly harvested sage leaves are characterized by an unusually high respiration rate. The values were in full agreement with Vant't Hoff's rule for a temperature rise from 10 to 20 deg (Q10=2.41), whereas during the increase from 20 to 30 deg (Q10 only 1.88) a clear heat depression was observed in the herb. The comparatively high respiration levels were maintained throughout a postharvest period of 90 h; the values declined by only 55.2, 61.2 and 65.2% of their initial rate for each temperature. Even at 30 deg , no respiratory collapse occurred despite notable senescence and wilting. The largest decrease in the rates occurred during the first 12 h after cutting. The postharvest course of the senescence-dependent respiration rate of sage could be described by a regression function. The high respiration rates were also indicated by a distinct decrease in FW due to respiratory activity. Colour and exterior quality were best maintained in dried material, followi

ng storage under relatively cool conditions (10 deg C) after harvest.