LSD: Least significant difference, ADF: Acid detergent fibre, NDF:
Neutral detergent fibre, ADL: Acid detergent lignin. Mean values
followed by the same letter do not differ significantly according to
Fisher’s Least Significant Difference (LSD, α = 0.05).
Total fibre reduction
In order to determine degradation of the lignocellulose complex for the
duration of the experiment, linear regression scatterplots and Pearson
correlation coefficients (R) were conducted. All Pearson correlation
coefficients, with the exception of mean ADL percentage at grind 1 ofG. lucidum (p ~ 0.053), were significant (α =
0.05). Solid-state fermentation across grind consistency G2 and all
mushroom species indicated a negative association with experimental time
units, suggesting successful degradation of lignocellulose complex from
week 0 to week 18. The strength of the time series associations varied
between the measurement parameters, ADF, NDF and ADL. The maximum
degradation over time was reported with mean ADF and mean NDF (R
< - 0.8; Figure 6 and Figure 7). In contrast, weaker
relationships were recorded in mean ADL across the experimental time
units, where R values ranged from -0.63 to -0.76 (Figure 8). Total
reductions (% total DM) of ADF, NDF and ADL of the total dry matter are
shown in Tables 8 to 10.
Table 8. Total ADF reduction percentage of substrate after 18
weeks of solid-state fermentation using M1: P . ostreatus,M2: G. lucidum and M3: Ganoderma #1.