3.4 Composition of Lignocelluloses
Lignocellulosic substrates are a major sustainable reserve, consisting of about 50%
of plant matter generated by photosynthesis and most copious renewable organic
matter which is a renewable resource (Gavrilescu 2004; Gavrilescu and Nicu 2004).
It comprises of three kinds of components, cellulose, hemicellulose, and lignin that
are strongly connected and chemically bound by non-covalent and covalent crosslinkages. The main part is cellulose, followed by hemicellulose and lignin (Fig. 3.4).
The composition and percentages of these compounds differ among plants and the
chemical composition of some of lignocellulosic materials is presented in Table 3.1
(McKendry 2002; John et al. 2006; Prasad et al. 2007; Carmen 2009).
3.5 Influence of Important Parameters on Production
of Cellulase
3.5.1 Lignocellulosic Substrates
The unique characteristic of lignocellulosic substrate used is the significant thing that
affects SSF and its assortment relies on various factors typically allied with the cost
and accessibility of solid substrate and as a result engages the screening of numerous
agricultural wastes. Cellulolytic enzymes production is affected by different parameters like pH, temperature, nature of substrates incubation time, etc. (Srilakshmi and
Narasimha 2020). The solid biomass not only provides nutrients to the organism but
also acts as a harbor to microbial cells (Vastrad and Neelagund 2011). The particle
size and moisture content are the most vital, among numerous factors, which are key
Fig. 3.4 Composition of various components of lignocellulosic feedstock
3 Influence of Significant Parameters on Cellulase Production by Solid-State. . .
77
Lignocellulosic substrates are a major sustainable reserve, consisting of about 50%
of plant matter generated by photosynthesis and most copious renewable organic
matter which is a renewable resource (Gavrilescu 2004; Gavrilescu and Nicu 2004).
It comprises of three kinds of components, cellulose, hemicellulose, and lignin that
are strongly connected and chemically bound by non-covalent and covalent crosslinkages. The main part is cellulose, followed by hemicellulose and lignin (Fig. 3.4).
The composition and percentages of these compounds differ among plants and the
chemical composition of some of lignocellulosic materials is presented in Table 3.1
(McKendry 2002; John et al. 2006; Prasad et al. 2007; Carmen 2009).
3.5 Influence of Important Parameters on Production
of Cellulase
3.5.1 Lignocellulosic Substrates
The unique characteristic of lignocellulosic substrate used is the significant thing that
affects SSF and its assortment relies on various factors typically allied with the cost
and accessibility of solid substrate and as a result engages the screening of numerous
agricultural wastes. Cellulolytic enzymes production is affected by different parameters like pH, temperature, nature of substrates incubation time, etc. (Srilakshmi and
Narasimha 2020). The solid biomass not only provides nutrients to the organism but
also acts as a harbor to microbial cells (Vastrad and Neelagund 2011). The particle
size and moisture content are the most vital, among numerous factors, which are key
Fig. 3.4 Composition of various components of lignocellulosic feedstock
3 Influence of Significant Parameters on Cellulase Production by Solid-State. . .
77