From:  Integrating coffee parchment into a circular bioeconomy model for sustainable Pleurotus mushroom cultivation

 Effects of particle size of coffee parchment on growth parameters of Pleurotus ostreatus and Pleurotus citrinopileatus.

Particle sizeSpeciesNumber of pileusDiameter of pileus (cm)Stipe length (cm)
RCPP. ostreatus9.55 ± 1.22 c5.50 ± 0.00 c7.42 ± 0.99 b
MCPP. ostreatus28.20 ± 3.12 a9.50 ± 2.22 a13.15 ± 1.33 a
FCPP. ostreatus26.00 ± 1.66 b7.80 ± 0.14 a8.40 ± 0.22 b
RCPP. citrinopileatus11.50 ± 1.50 c4.80 ± 0.20 c6.80 ± 0.90 c
MCPP. citrinopileatus30.00 ± 2.80 a8.00 ± 1.50 a11.50 ±1.20 a
FCPP. citrinopileatus28.00 ± 2.00 b7.00 ± 0.25 b7.50 ± 0.50 b

RCP: raw coffee parchment; MCP: medium coffee parchment; FCP: fine coffee parchment. Values are mean ± SD from three replicates. Values in a column with different superscript letters are significantly different (p < 0.05) at 5% level of significance using Duncan’s multiple-range test. Repeated superscript letters indicate that the means were not significantly different (p > 0.05). SD: standard deviation.