Relationship between Color CIEL∗a∗b∗ and Total Organic Carbon in Compost

الملخص EN

The CIEL∗a∗b∗ coordinates and the total organic carbon content in compost were correlated.

Two particle sizes of 0.5 and 2 mm were obtained in the compost samples; the surface color was analyzed with a CIEL∗a∗b∗ colorimeter and the total organic carbon content by spectrophotometry at 588.9 nm.

The results indicate that all chromaticity values were significantly affected (p<0.001) by particle size.

Chromaticity values a∗, b∗, C∗, and h° showed significantly strong Pearson correlations (r>0.95).

The coordinates a∗ (r=−0.992) and b∗ (r=0.968) have the potential to be used in estimating the total organic carbon concentration in the compost samples analyzed.