Efficient evaluation of cellulose digestibility by Trichoderma reesei Rut-C30 cultures in online monitored shake flasks

Table 1 Physical properties of the used types of cellulose and oxygen transfer-based parameters

	CrI [%]	d_p [µm]	Slope of linear increase [mmol L⁻¹ h⁻²]	Slope of linear decrease [mmol L⁻¹ h⁻²]	Area ratio X/Y [−]
Sigmacell 101	Amorphous^b	15.68^b	1.25	−0.70	0.59
α-Cellulose	41.5^a	68.77^b	0.58	−0.20	0.43
Sigmacell 20	52.6^a	20^c	0.44	−0.14	0.41
Sigmacell 50	56.1^a	50^c	0.39	−0.12	0.36

The crystallinity index (CrI) and particle size (d_p) of the used types of cellulose are listed together with the slope of linear increase, slope of linear decrease as well as the area ratio of increasing (X) to the decreasing (Y) OTR according to Fig. 4. The values were calculated for a T. reesei Rut-C30 cultivation on 5 g L⁻¹ glucose and 30 g L⁻¹ of the corresponding type of cellulose as carbon sources
^aNMR based calculation [62]
^bRef. [54]
^cAccording to manufacturer’s data

ISSN: 1475-2859