. 2013 Jan 28;6:15. doi: 10.1186/1754-6834-6-15

Table 4.

Cellulose DP before and after DA and hydrothermal pretreatments for different substrates

Substrate	Pretreatment conditions	DP before pretreatment	DP after pretreatment	Reference
Corn stover	DA pretreatment: 3% H₂SO₄, 180°C, 90 s	7300^a	2700^a	[32]
Poplar	DA pretreatment: 2% H₂SO₄, 190°C, 70 s	3500^a	600^a	[32]
Loblolly pine	DA pretreatment: 1% H₂SO₄, 180°C, 30 min	3642^b	1326^b	[95]
Switchgrass	DA pretreatment: 5% H₂SO₄, 180°C, 5 min	1891^b	1342^b	[82]
Corn stover	Hydrothermal pretreatment: 190°C, 15 min	7300^a	5700^a	[32]
Poplar	Hydrothermal pretreatment: 200°C, 10 min	3500^a	1750^a	[32]

a: DP was measured by viscometric method [96].

b: DP was measured by gel-permeation chromatography (GPC) technique [97].