ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Respiratory metabolism and changes in chemical compositions of banana fruit after storage in low oxygen atmosphere.

Shukor, A. R. A.; Norhayati, M.; Omar, D.;

Postharvest Horticulture Series - Department of Pomology, University of California Year: 1997 Issue: No. 17 Pages: 75-81 Ref: 10 ref.

1997

บทคัดย่อ

Mature green banana (Musa acuminata, cv. Berangan) fruits were stored in an atmosphere consisting of 0.5%, 2%, 5%, 10% O2 in N2 or in air (21% O2) for 8 weeks at 14 deg C. Following storage in low-O2 atmosphere, the fruits were transferred to ambient conditions at 25 deg and allowed to ripen naturally or induced with 250 ppm ethylene for 24 h. The results indicate that Berangan bananas can be stored for 8 weeks in 2% O2 and for 5 weeks in 5% O2 atmospheres at 14 deg . Fruits stored in 2% and 5% O2 for 4 weeks exhibited a reduction in CO2 production rates after transfer to ambient air for one day compared with higher O2 levels. Following transfer to air, the preclimacteric period of fruits previously stored in 2% and 5% O2 for 4 weeks was extended to 5 days and skin colour changes were slow. However, exogenous ethylene treatment at 250 ppm drastically shortened the preclimacteric period by one day and skin colour development was rapid and uniform. The respiratory quotient (RQ) value of fruits aft

er storage in 0.5% O2 for 4 weeks was higher than 1.0, while the RQs of fruits in 2% O2 or higher were closed to unity. This indicates the occurrence of a slight incident of anaerobic metabolism in fruits stored in a 0.5% O2 atmosphere. Total sugar and starch contents of ripe fruits after storage in low-O2 atmosphere are tabulated.