Similarly, fumigating fresh-cut lotus root with 175 μL/L CO at 10, 20 or 30 min could also inhibit browning, especially the treatment with 175 μL/L CO for 20 min. At day 8, L value of fresh-cut lotus fumigated with 175 μL/L of CO for 20 min was the highest in all samples and it was 23.04% higher than that of control sample.