บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Consumer expectations and soluble solids, acidity and firmness of plums.

Hoehn E., Gasser F., Ladner J.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.95

2004

บทคัดย่อ

Consumer expectations and soluble solids, acidity and firmness of plums. Soluble solids content, acidity and firmness are important factors determining eating quality of fruit.Tests with consumers confirmed that acceptance can be predicted by instrumental measurements of total soluble solids (refractometer), titratable acidity and firmness measurements for plums.

The variety ‘Cacaks Schone’ of acceptable eating quality should attain a minimum of 13.8 °Brix.Acidity should be less than 10 gL-1 (malate) and firmness should not exceed 35 Durofel units.A sugar acid ratio ranging between 16 and 18 seemed most acceptable.Soluble solids content and acidity of plums were related to crop load.Furthermore, acidity and firmness were dependant of picking time or ripening stage of plums.Plums picked at an early stage of ripeness and stored for four weeks were not liked by consumers.Although firmness and acidity decreased during storage.Hence control of crop load and picking at the optimal ripeness stage are decisive for the eating quality of plums.