บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Compositions of cellulose coatings affect populations of yeasts in the liquid formulation and on coated grapefruits.

McGuire, R. G.; Baldwin, E. A.;

Proceedings of the Florida State Horticultural Society Year: 1994, recd. 1995 Issue: No. 107 Pages: 293-296 Ref: 14 ref.

1995

บทคัดย่อ

Compositions of cellulose coatings affect populations of yeasts in the liquid formulation and on coated grapefruits.

ABSTRACT :

 

The surfaces of citrus fruits support populations of many species of bacteria, yeasts and other fungi while fruits are developing in the grove, but most are reduced or lost during fruit processing. Restoring surface populations of beneficial microorganisms can provide an opportunity for biological control of postharvest decay pathogens. If the biocontrol organism is incorporated into the coating, no additional processing steps are required during fruit packing. One biocontrol candidate, the yeast Candida oleophila, has proven to prolong the storage life of grapefruits (Citrus paradisi), but its growth on the fruit is dependent upon the coating composition. Films based upon cellulose can support very high populations of this species. The yeasts C. oleophila, Rhodotorula mucilaginosa and Cryptococcus albidus survive many weeks in the refrigerated bottled coating, although addition of the preservative, potassium sorbate at 0.15%, will kill these yeasts within 2 weeks. Application of a coating with

0.15% potassium sorbate does not hinder development of fruit surface populations of C. oleophila, however.