2.3.3. Color
Surface color was measured on the outer side of the strips with a chroma meter (Model CR-400, Minolta, Osaka, Japan) to obtain CIE L*; a*; b* values. The hue angle was calculated as 180 − tg−1 b*/a* and tg−1 b*/a* for green and red peppers respectively. Sixty measurements were done for each gas treatment, ripening stage, and storage time.