Kinetics modelling of acid hydrolysis of cassava (Manihot esculanta Cranz) peel and its hydrolysate chemical characterisation

Ajala, E. O.; Ajala, M. A.; Tijani, Idowu Abdulfatai; Adebisi, AbdulWahid; Suru, I.

doi:10.1016/j.jksus.2020.03.003

Cited by 11 publications

(8 citation statements)

References 28 publications

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“…Some studies have focused to determine Ae and A values for acid hydrolysis of different lignocellulosic materials, however, only a few of them have reported the complementary thermodynamic parameters; ∆H, ∆S and ∆G. (Ajala et al, 2020;Gomora-Hernandez et al, 2020;Gurgel et al, 2012) and (Tizazu & Moholkar, 2018) calculated not only positive values for ∆H and ∆G but also negative entropies (-∆S) which are in agree to the trend observed in this paper.…”

Section: Acidsupporting

confidence: 86%

“…All fittings were performed greatly and the R 2 coefficients were higher than 0.90. Table 1 summarizes the kinetic and statistical parameters for oat bagasse hydrolysis with different inorganic acids, from this table can be observed that an increase in reaction temperature promotes an increase in k 1 rate constants; with exception of phosphoric acid similar behaviour was observed for k 2 , this trend has been reported previously with different kinetic models and lignocellulosic materials (Ajala et al, 2020;Arslan et al, 2012;Na & Lee, 2015;Sun et al, 2014).…”

Section: Kinetic and Thermodynamic Study Of Oat Bagasse Acid Hydrolysissupporting

confidence: 78%

“…As Ae, the major values of activation enthalpy (∆H) were calculated for sulphuric and phosphoric acid, this fact means that both acids required more energy to reach the activated complex in comparison with hydrochloric acid which can be due to the incomplete deprotonation associated with their dissociation constants. According to (Gurgel et al, 2012) and the activated complex theory, ∆S is a measure of the degree of organization resulting from the formation of activated complex, moreover, ∆S indicates where the maximum amount of energy come from; complex or products, positive values are associated with the maximum amount of energy in the chemical complex while negative values correspond to the reactants side and implies that the activated complex is more ordered than the reactants (Ajala et al, 2020); this last one was observed for oat bagasse hydrolysis with hydrochloric, sulphuric and phosphoric acid. In addition, from the thermodynamic principles any process with negative entropy is designed as stable.…”

Section: Acidmentioning

confidence: 99%

See 2 more Smart Citations

Sugar production by dilute acid hydrolysis of oat bagasse with three different acids: kinetics and thermodynamics

Gómora-Hernández

Carreño-de-León²,

Cuellar-Robles³

et al. 2022

RMIQ

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Section: Acidsupporting

confidence: 86%

Section: Kinetic and Thermodynamic Study Of Oat Bagasse Acid Hydrolysissupporting

confidence: 78%

Section: Acidmentioning

confidence: 99%

See 1 more Smart Citation

Sugar production by dilute acid hydrolysis of oat bagasse with three different acids: kinetics and thermodynamics

Gómora-Hernández

Carreño-de-León²,

Cuellar-Robles³

et al. 2022

RMIQ

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“…The pre-treatment process also has great effects on the hemicellulose, cellulose, and lignin fraction (Antunes et al 2018 ). Hemicellulose is a highly branched polymer that consists of pentose (xylose and arabinose) and hexose (glucose, mannose, and galactose) sugars (Ajala et al 2020 ). However, the choice of pre-treatment method counts on the effective de-lignification and hemicellulose removal as it also has economic benefits, saves time, reduces sugar levels and causes less environmental pollution (Sabiha-Hanim et al 2018 ).…”

Section: Preparation Strategiesmentioning

confidence: 99%

Sugarcane bagasse: a biomass sufficiently applied for improving global energy, environment and economic sustainability

Ajala

Ighalo

Ajala

et al. 2021

Bioresour. Bioprocess.

124

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Sugarcane (Saccharum officinarum) bagasse (SCB) is a biomass of agricultural waste obtained from sugarcane processing that has been found in abundance globally. Due to its abundance in nature, researchers have been harnessing this biomass for numerous applications such as in energy and environmental sustainability. However, before it could be optimally utilised, it has to be pre-treated using available methods. Different pre-treatment methods were reviewed for SCB, both alkaline and alkali–acid process reveal efficient and successful approaches for obtaining higher glucose production from hydrolysis. Procedures for hydrolysis were evaluated, and results indicate that pre-treated SCB was susceptible to acid and enzymatic hydrolysis as > 80% glucose yield was obtained in both cases. The SCB could achieve a bio-ethanol (a biofuel) yield of > 0.2 g/g at optimal conditions and xylitol (a bio-product) yield at > 0.4 g/g in most cases. Thermochemical processing of SCB also gave excellent biofuel yields. The plethora of products obtained in this regard have been catalogued and elucidated extensively. As found in this study, the SCB could be used in diverse applications such as adsorbent, ion exchange resin, briquettes, ceramics, concrete, cement and polymer composites. Consequently, the SCB is a biomass with great potential to meet global energy demand and encourage environmental sustainability.

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“…Meanwhile, for non-food purposes, cassava is utilized as raw material in cosmetics, bioethanol, chemicals, and textile industries. The benefits of cassava are divided into local staple foods, agricultural industrial products, and industrial raw materials, so cassava has the potential to be developed [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Prospects of Cassava Development in Indonesia in Supporting Global Food Availability in Future

Rozi¹,

Elisabeth²,

Krisdiana³

et al. 2023

Advances in Root Vegetables Research

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Climate change is a major factor endangering sustainable food production. Various efforts have been made to prevent potential food shortages in future. Meanwhile, access to adequate food is an important part of human rights. In Indonesia, the opportunity for cassava development is still widely open and has potential to provide for the world’s needs in future. Cassava is well-known by farmers in Indonesia and can be easily cultivated in all areas of Indonesia, even though the soil fertility is low. The current problems are that cassava is still considered as an inferior commodity and is only used for direct consumption. Indonesia is able to meet the world\'s cassava needs only by utilizing 54% of the total available land, which is suitable for planting cassava. Cassava utilization is actually large and has potential as raw material for many strategic industries. The map of cassava development in Indonesia is in the phase of growth and product expansion (diversification). Thus, the efforts in preparing cassava in Indonesia to meet the world’s needs in future, including (1) increasing cassava productivity, (2) improving cassava added value by-product diversification, and (3) enhancing cassava bio-economy by implementing a bio-industry system integrating cassava and livestock farming.

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Kinetics modelling of acid hydrolysis of cassava (Manihot esculanta Cranz) peel and its hydrolysate chemical characterisation

Cited by 11 publications

References 28 publications

Sugar production by dilute acid hydrolysis of oat bagasse with three different acids: kinetics and thermodynamics

Sugar production by dilute acid hydrolysis of oat bagasse with three different acids: kinetics and thermodynamics

Sugarcane bagasse: a biomass sufficiently applied for improving global energy, environment and economic sustainability

Prospects of Cassava Development in Indonesia in Supporting Global Food Availability in Future

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