Organosolv lignin aggregation behaviour of soluble lignin extract from Miscanthus x giganteus at different ethanol concentrations and its influence on the lignin esterification

Chemical and Biological Technologies in Agriculture

Table 1 Comparison of particle size of soluble lignin extract at different ethanol concentrations

Soluble lignin extract at different ethanol concentrations (%)	Particle size
	Particle diameter from Zetasizer Nano ZS (nm)		Particle diameter from Mastersizer 2000 (μm)
	Particle size distribution	Particle size	^aD_v10	^bD_v50	^cD_v90	^dD_3,2
50	712.4–1718.0 1718.0–4801.0	3001.8	3.0	6.7	13.4	5.4
40	295.3–458.7 615.1–1484.0 1484.0–4801.0	2743.6	7.9	16.3	29.3	3.6
30	342.0–712.4 712.4–1484.0 1484.0–4145.0	2172.9	6.0	13.1	25.8	3.7
20	825.0–4801.0	1815.7	3.5	7.10	13.2	6.0
10	164.2–531.2 531.2–6439.0	1144.9	1.9	5.9	15.0	4.8
1	105.7–1281.0	331.7	0.1	2.2	13.0	0.4

D diameter, v volume
^aD_v10 = the maximum particle diameter below which 10% of the sample volume exists
^bD_v50 = the maximum particle diameter below which 50% of the sample volume exists
^cD_v90 = the maximum particle diameter below which 90% of the sample volume exists
^dD_3,2 = surface area mean diameter