Influence of Feedstock Particle Size on Lignocellulose Conversion—A Review

Vidal, Bernardo C.; Dien, Bruce S.; Ting, K. C.; Singh, Vijay

doi:10.1007/s12010-011-9221-3

Cited by 175 publications

(120 citation statements)

References 68 publications

(114 reference statements)

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…It can be clearly seen that the dominant group of particle size was the group of higher than 500 µm, whereas the least dominant group of particle size was the group of less than 63 µm. This finding was in agreement with Vidal et al (2011), who elucidated that most of lignocellulosic pretreatments contribute to the biomass particle size reduction.…”

Section: Particle Size Distributionsupporting

confidence: 93%

Physicochemical Property Changes and Enzymatic Hydrolysis Enhancement of Oil Palm Empty Fruit Bunches Treated With Superheated Steam

Bahrin¹,

Baharuddin²,

Ibrahim³

et al. 2012

BioResources

View full text Add to dashboard Cite

The effect of superheated steam treatment on oil palm empty fruit bunches (OPEFB) was investigated in terms of physicochemical property changes and enzymatic hydrolysis enhancement. The experimental treatment was carried out at different temperatures (140-210°C) and durations (20-90 min). Results showed that as the superheated steam temperature and time increased, the size distribution also changed, resulting in more small particles. Analysis on the surface texture, color, and mechanical properties of the treated OPEFB also showed that significant changes resulted due to the superheated steam treatment. In support to this, Fourier Transform Infrared (FTIR) spectroscopy and thermogravimetric (TG) analyses showed that solubilization and removal of the hemicelluloses component also took place. As a result of this phenomenon, higher total sugar and glucose yield was achieved once the treated OPEFB was subjected to enzymatic hydrolysis. This suggests that superheated steam treatment could enhance OPEFB structure degradation for the preparation of a suitable substrate in order to produce a higher glucose yield in the enzymatic hydrolysis process.

show abstract

Section: Particle Size Distributionsupporting

confidence: 93%

Physicochemical Property Changes and Enzymatic Hydrolysis Enhancement of Oil Palm Empty Fruit Bunches Treated With Superheated Steam

Bahrin¹,

Baharuddin²,

Ibrahim³

et al. 2012

BioResources

View full text Add to dashboard Cite

show abstract

“…The surface area of maize increased by four times when the APS decreased from 2010 to 525 µm (Summers, 2001). Vidal et al (2011) also report that physical particle size reduction led to structural modification at macromolecular level such as lignocellulose physical structure and boosted cellulose hydrolysis rate by up to 50%. Moreover, feed efficiency, apparent DM digestibility and apparent N digestibility were improved when wheat APS decreased from 1300 to 600 µm in a nursery pig diet with supplemented xylanase (Mavromichalis et al, 2000).…”

Section: Phytate P Degradationmentioning

confidence: 81%

Effect of particle size and microbial phytase on phytate degradation in incubated maize and soybean meal

Blaabjerg

Poulsen

2014

Animal

View full text Add to dashboard Cite

The objective of the study was to evaluate the effect of screen size (1, 2 and 3 mm) and microbial phytase (0 and 1000 FTU/kg as-fed) on phytate degradation in maize (100% maize), soybean meal (100% SBM) and maize-SBM (75% maize and 25% SBM) incubated in water for 0, 2, 4, 8 and 24 h at 38°C. Samples were analysed for pH, dry matter and phytate phosphorus (P). Particle size distribution (PSD) and average particle size (APS) of samples were measured by the Laser Diffraction and Bygholm method. PSD differed between the two methods, whereas APS was similar. Decreasing screen size from 3 to 1 mm reduced APS by 48% in maize, 30% in SBM and 26% in maize-SBM. No interaction between screen size and microbial phytase on phytate degradation was observed, but the interaction between microbial phytase and incubation time was significant ( P < 0.001). This was because microbial phytase reduced phytate P by 88% in maize, 84% in maize-SBM and 75% in SBM after 2 h of incubation ( P < 0.05), whereas the reduction of phytate P was limited (<50%) in the feeds, even after 24 h when no microbial phytase was added. The exponential decay model was fitted to the feeds with microbial phytase to analyse the effect of screen size and feed on microbial phytase efficacy on phytate degradation. The interaction between screen size and feed affected the relative phytate degradation rate ( R d ) of microbial phytase as well as the time to decrease 50% of the phytate P ( t1 = 2 ) ( P < 0.001). Thus, changing from 3 to 1 mm screen size increased R d by 22 and 10%/h and shortened t1 = 2 by 0.4 and 0.2 h in maize and maize-SBM, respectively ( P < 0.05), but not in SBM. Moreover, the screen size effect was more pronounced in maize and maize-SBM compared with SBM as a higher phytate degradation rate constant (K d ) and R d , and a shorter t1 = 2 was observed in maize compared with SBM in all screen sizes ( P < 0.05). However, a higher amount of degraded phytate was achieved in SBM than in maize because of the higher initial phytate P content in SBM. In conclusion, reducing screen size from 3 to 1 mm increased K d and R d and decreased t1 = 2 in maize and maize-SBM with microbial phytase. The positive effect of grinding on improving microbial phytase efficacy, which was expressed as K d , R d and t1 = 2 , was greater in maize than in SBM.

show abstract

“…Particle size is an important factor in enzyme digestion and economics of pretreatment as the reduction of size is an energy dependent process [30] [46]. DLS experiments were performed prior to enzymatic hydrolysis experiments to verify the effect of different pretreatments and their respective influences on the particle sizes of the substrates.…”

Section: Dynamic Light Scatteringmentioning

confidence: 99%

Multi-Scale Structural Studies of Sequential Ionic Liquids and Alkali Pretreated Corn Stover and Sugarcane Bagasse

Kaur¹,

Sahni²

2018

GSC

View full text Add to dashboard Cite

The complexity of plant cell walls impedes the conversion of cellulosic biomass to sugars. Pretreatment becomes a necessity to increase the digestibility of biomass. An in-depth understanding of the structure and underlying mechanisms governing deconstruction process is important. In the present study, the comprehensive investigation of morphological and structural changes in corn stover and sugarcane bagasse following ionic liquids dissolution and alkaline extraction was done using Fourier transform infrared spectroscopy, Thermogravimetric analysis, Confocal scanning laser microscopy, Atomic force microscopy and Dynamic light scattering studies. Both the substrates were pretreated with ILs 1-ethyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium acetate followed by alkaline extraction. The pronounced changes such as lignin, hemicelluloses removal and decreased cellulose crystallinity after the pretreatments lead to the structural transformation of matrix polymers. The enzymatic hydrolysis showed 90% theoretical sugar yield in case of sugarcane bagasse and 80% in corn stover following synergistically combined pretreatments.

show abstract

Influence of Feedstock Particle Size on Lignocellulose Conversion—A Review

Cited by 175 publications

References 68 publications

Physicochemical Property Changes and Enzymatic Hydrolysis Enhancement of Oil Palm Empty Fruit Bunches Treated With Superheated Steam

Physicochemical Property Changes and Enzymatic Hydrolysis Enhancement of Oil Palm Empty Fruit Bunches Treated With Superheated Steam

Effect of particle size and microbial phytase on phytate degradation in incubated maize and soybean meal

Multi-Scale Structural Studies of Sequential Ionic Liquids and Alkali Pretreated Corn Stover and Sugarcane Bagasse

Contact Info

Product

Resources

About