Enhanced lignin degradation by Irpex lacteus through expanded sterilization further improved the fermentation quality and microbial community during the silage preservation process

Bioresources and Bioprocessing

Table 1 Chemical composition of I. lacteus treated different buckwheat straw for 14 days

Item Treatments	Relative content (g/kg DM)				SEM	p-value	Absolute content (g)		SEM	p-value
Item Treatments	CK	EX	CIL	EIL	SEM	p-value	CIL	EIL	SEM	p-value
DM loss (%)	–	–	–	–			10.2^b	13.6^a	0.85	0.015
NDS	319.8^ab	349.2^a	299.9^b	324.1^ab	6.59	0.034	268.4^b	280.4^a	3.17	0.034
Lignin	80.2^b	73.7^c	86.6^a	77.9^c	1.80	< 0.001	77.6^a	67.4^b	2.39	0.004
CL	462.1	459.0	473.6	476.6	3.77	0.338	423.8	411.7	3.32	0.170
HC	137.8^ab	118.2^b	139.4^a	121.4^b	3.70	0.015	122.0^b	105.0^a	4.21	0.020
WSC	116.3^a	123.0^a	67.5^b	47.9^c	9.73	< 0.001	60.5^a	41.4^b	4.59	0.007
Ash	51.1^c	61.9^b	63.0^b	76.2^a	2.73	< 0.001	56.4^b	65.9^a	2.27	0.005

CK, raw buckwheat straw; EX, expanded straw; CIL and EIL represent CK and EX groups treated with I. lacteus for 14 days respectively. NDS, natural detergent solute; CL, cellulose; HC, hemicellulose; WSC, water-soluble carbohydrate. SEM, standard error of means