ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effects of atmosphere composition on postharvest quality of fresh basil leaves (Ocinum basilicum L.)

Amodio M.L.; Centonze D.; Peri G.; Quinto M. and Colelli G.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.99

2004

บทคัดย่อ

   Fresh basil leaves were stored in air, 2% O₂ in nitrogen, and 2% O₂ + 3% CO₂ in nitrogen for 16 days at 12°C. Visual quality attributes resulted unchange for up to 12 days, with o­nly minimal differences between treatments. After 16 days of storage leaves kept in air showed a significant increase in brown areas compared to other treatments. Colour of the lamina showed no significant change in terms of hue and chromaticity for all the duration of the experiment. Leaf texture after 12 days of storage resulted slightly although significantly lower for the samples held in 2% O₂ + 3% CO₂ while it drastically decreased of 60% of initial value at the end of the experiment for samples held in air.

The composition of the volatile fraction, obtained by gas-chromatography hyphenated with mass spectrometry, showed no differences except for samples in air after 16 days of storage, in agreement with other results obtained during this trial. Reducing oxygen in the atmosphere composition contributed to maintain better quality of basil leaves for more than 2 weeks of storage compared to storage in air. Adding 3% CO₂ did not produce significant benefits, although at this concentration no CO₂ injury was observed. In a previous experiment 10% CO₂ resulted in severe leaf browning either in air and in 5% O₂.