enzymatic hydrolysis of cassava peels as potential pre

Ethanol Production from Cassava Root Sieviate

2015-10-10enzymatic hydrolysis or dilute acid hydrolysis at higher temperatures during which the cellulose is hydrolyzed [7] In this work a two stage dilute acid hydrolysis was conducted using cassava root sieviate for ethanol production using phosphoric acid and the resulting hydrolysate was fermented using Saccharomyces cerevisiae

Improvement of the biogas production process

2015-1-7the hydrolysis and acidogenic AD steps are much less studied Thus the effects of the trace elements on the early steps in the AD-chain need to be investigated further To obtain high-rate hydrolysis effective and energy efficient pre-treatment methods are

Characterization of a Novel α

2014-4-4In search for hydrolytic enzymes with novel catalytic ability from agricultural waste materials a moderately thermostable α-amylase from Bacillus macquariensis isolated from cassava peels dumpsite has been purified and characterized The enzyme was purified in two steps using ion exchange and gel filtration chromatography The purified enzyme appeared to be a dimer with a native molecular


2011-10-11The present study investigated the feasibility of using non-food parts of cassava for energy production and the promising results revealed that at least 28% of peels and stems comprise dry matter and 10 g feedstock yields 8 5 g sugar which in turn produced 60% ethanol with pH ≈ 2 85 74–84% light transmittance and a conductivity of 368

Clearfuels projects on record

aqueous phase reformation gasification catalytic bioforming or dilute sulphuric acid pre-treatment and enzymatic hydrolysis Madison WI liquid transportation fuels syngas bio-gasoline monoxygenates such as alcohols aldehydes and ketones plus the reforming products of

Comparative Study on Fungal Pretreatment and

2017-7-2The production of second-generation bioethanol typically consists of the following steps pre-treatment enzymatic hydrolysis fermentation and downstream processing The main objective of this work is to assess the potential production of bioethanol from lignocellulose agricultural waste (cassava peelings and rice husk) materials in Ghana


Cassava is a tropical root crop mainly grown in Africa Asia and Latin America It is the fifth staple food in the world after rice wheat maize and potatoes being a basic component of the diet of a billion people [] As it takes at least 8 months of warm weather to produce a harvestable root cassava is

Acid hydrolysis Medical search FAQ

2020-5-29Hydrolysis Kinetics Adsorption Pressure Carbohydrate Sequence Biomass Disciplines and Occupations 2 Food Microbiology Industrial Microbiology Anthropology Education Sociology and Social Phenomena 2 Patents as Topic Intellectual Property Technology Industry Agriculture 9

Pretreatment Empty Fruit Bunch of Oil Palm Tree for

2017-7-24Empty fruit bunch of oil palm tree (EFBOPT) solid waste of palm oil industries is potential for raw materials of biofuel especially bioethanol production because of its cellulose and hemicellulose contents There are four steps to produce bioethanol called the second generation bioethanol from EFBOPT or other lignocellulosic materials The steps are (a) pretreatment of lignocellulose

Optimisation of enzymatic hydrolysis of cassava peel to

2017-4-10Optimisation of enzymatic hydrolysis of cassava peel to produce fermentable sugars Richard Bayitse1* Xiaoru Hou2 Anne‑Belinda Bjerre2 and Firibu Kwasi Saalia3 Abstract Enzymatic hydrolysis of cassava peels was evaluated using cellulase and beta‑glucanase enzymes and their mixtures at three different enzyme loadings with time

Aspergillus nidulans: A Potential Resource of the

Aspergillus nidulans is a filamentous fungus that is a potential resource for industrial enzymes It is a versatile fungal cell factory that can synthesize various industrial enzymes such as cellulases β -glucosidases hemicellulases laccases lipases proteases β -galactosidases tannases keratinase cutinases and aryl alcohol oxidase iA nidulans/i has shown the potential to

Chapter 1

2007-1-91 4 1 1 General morphology and composition of the cassava root The edible portion of cassava is a starchy root which matures to harvest within 8 to 24 months of planting depending on cultivar and climate A mature cassava root may be anything from 15 to 100 cm in length and from 0 5 to 2 0 kg in weight subject to variety and growing conditions

Bioethanol Production from Agro Wastes by Acid

2016-7-20such as cassava sugar-beet wheat rice corn barley potato and sorghum are also being utilized for bioethanol production in different parts of the world 4 5 Bioethanol production was studied by Zhang et al 2009 6 using Aspergillus niger and Saccharomyces cerevisae in simultaneous saccharification and fermentation


2015-12-4The various pre-treatment methods of cassava peels fermented with Aspergillus niger and the in-vitro digestibility of the enriched fermented products were investigated The peels were subjected to boiling pressure and dry heat treatments at 100oC 121 oC and 138 oC respectively and each treated with A niger The order


2017-6-1concentration of 115 2 g/L with a potential to produce 50 g/L of ethanol This is the first report on pilot scale study on acid pretreatment of RS in a screw feeder horizontal reactor followed by enzymatic hydrolysis at high solid loadings [Kapoor M Soam S Agrawal R Gupta R P

African Journal of Biotechnology

Cassava peels treated with biomass of A niger CSA35 for a period of three weeks to initiate enzymatic digestion of peels were dried ground and used in varying proportions to formulate pig rations in combination with other feed ingredients Twenty 85–95 days old pigs (5 85 0 70 kg) were randomly divided into four experimental groups

Synergistic Enzymatic Hydrolysis of Cassava Starch

2019-12-17Part 1 dealt with c assava i ts products and potential for enzyme hydrolysis Part 2 discussed the p roduction of enzymes by submerged and solid state fermentations Chapter 3 dealt with physical properties of cassava flour made from solar convection dried cassava c hips Chapter 4 reported on synergistic enzymatic hydrolysis of cassava s t arch

10 1016/j rser 2016 06 064

Therefore cassava peels need to be pretreated in order 90% [6 105] all of which have positive effects on ethanol yield The to unlock its cellulose and hemicellulose component [59] which end of the exposure marks the end of the cassava peels pre- makes up more than 50% of its dry weight (Table 2) [60]


A method for preparing sugar using sweet potato residues characterized in that the method comprises the following steps: Step 1: take sweet potato residues pulverize or grind the wet residue add the residual water of sweet potato starch to formulate a suspension adjust the suspension to pH 4 0-6 0 add cellulase and add β-glucanase to hydrolyze for 2-10 hours at 20-70 C Stage 2: add

Production of Glucoamylase from Saccharomycopsis

2016-11-16using cassava peels pretreated with distilled water at 135C under pressure of 15 lb/inch2 to produce ethanol yield as high as the cassava peels pretreated with diluted sulfuric acid under the same condition This suggests that S fibuligera with enzyme produced has potential for industrial applications

Journal: Waste and biomass valorization / Publication

Biodegradable blends of polyvinyl alcohol (PVA) and starch has potential to replace non-biodegradable plastic materials PVA/starch sheets were produced by extrusion-calendering using five PVA grades with different molecular weights (MW) and hydrolysis degrees (HD)

Hydrolysis of Arabinoxylan

[0044]The process of present invention may be any ethanol process comprising enzymatic hydrolysis of biomass and/or effluent from pre-treatment of biomass An additional enzyme which advantageously may be applied in a biomass-based ethanol process is an enzyme selected from the list consisting of beta-glucanase cellulase cellobiohydrolase

Biocatalysis and Agricultural Biotechnology Page 9

Antifungal and insecticidal potential of chitinases: A credible choice for the eco-friendly farming Publication date: Available online 16 August 2019Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Gursharan Singh Shailendra Kumar AryaAbstractNumerous biopesticides based on live microbes their enzymes and other bioactive compounds have been evaluated against different

Cellulose Chemistry and Technology

Pretreatment and enzymatic hydrolysis of pearl millet stover by multi-enzymes from Aspergillus nidulans AKB-25 Pages 781-790 AMIT KUMAR DHARM DUTT and ARCHANA GAUTAM Contents-----Optimization of enzyme dosages for hydrolysis of destarched corn fiber subjected to acid and alkaline pretreatments for improved fermentable sugar yield Pages 791-802

Improving Cassava Quality for Poultry Feeding

Recently Olanbiwoninu and Odunfa hydrolysed cassava peel into fermentable sugars using organic acid pre-treatment before enzyme hydrolysis Because cassava peel is high in cellulose and hemicellulose (34 4%) this form of pre-treatment may be important in aiding the initial breakdown process before enzymatic hydrolysis is applied for it to be