additional low O
CO
effect.
When bananas and plantains ripened in control or 10%
2
2
, the fruits turned completely yellow after 6 d (Fig. 1-A).
The color values (Hue angle, h° values) of the fruits in control
and 10% CO
treatment decreased from around 120 to less
than 100, and the Chl contents of these fruits decreased to
around 7% of the original contents. No obvious yellowing
was found in bananas during storage in 30% CO
2
after 6 d,
while plantains developed an uneven yellow peel. The
decline of the h° values and Chl contents in both bananas
2