EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Enzymatic starch saccharification in an ultrafiltration membrane reactor






Starch 50(9): 368, Sept

Enzymatic starch saccharification in an ultrafiltration membrane reactor

Enzymatic hydrolysis of starch has traditionally been performed in large volume batch reactors using soluble enzyme during long time. Introduction of the membrane bioreactor brings possibility of continuous operation in lower volume reactors in shorter reaction time. Studies on the simultaneous enzyme action of glucoamylase and pullulanase on liquefied potato starch in a continuous membrane reactor were made with the application of the various cut-off and transmembrane pressure of membranes. Influence of different reaction conditions namely enzyme concentration, substrate: enzyme ratio and residence time on glucose content were measured. Membrane reactor with 3.000 Da produced almost pure glucose at residence time of 3-4 h.

Accession: 003127059

DOI: 10.1002/(sici)1521-379x(199809)50:9<390::aid-star390>3.0.co;2-w

Download PDF Full Text: Enzymatic starch saccharification in an ultrafiltration membrane reactor



Related references

Darnoko D.; Cheryan M.; Artz W.E., 1989: Saccharification of cassava starch in an ultrafiltration reactor. Extruded cassava starch was continuously hydrolysed with glucoamylase in an ultrafiltration (UF) reactor. With a residence time of 2.5 h, the optimum enzyme concentration was 1200 Novo AG units 100 g-1 substrate solids. This resulted in low glucos...

Grzeskowiak-Przywecka, A.S.ominska, L., 2007: Saccharification of potato starch in an ultrafiltration reactor. Enzyme hydrolysis of maltodextrine by a fungal l-amylase for the production of maltose syrup carried out by a simultaneous use of a stirred tank reactor and a ceramic ultrafiltration membrane with various molecular weight cut-off. Research was car...

Frennesson, I.; Trägårdh, G.; Hahn-Hägerdal, B., 1985: An ultrafiltration membrane reactor for obtaining experimental reaction rates at defined concentrations of inhibiting sugars during enzymatic saccharification of alkali-pretreated sallow: Formulation of a simple empirical rate equation. The kinetics of the enzymatic hydrolysis of sodium hydroxide-pretreated sallow were studied in an ultrafiltration membrane reactor in the presence of different concentrations of glucose. In the UF membrane reactor low-molecular-weight products wer...

Frennesson I.; Tragardh G.; Hahn Hagerdal B., 1985: An ultrafiltration membrane reactor for obtaining experimental reaction rates at defined concentrations of inhibiting sugars during enzymatic saccharification of alkali pretreated sallow formulation of a simple empirical rate equation. The kinetics of the enzymatic hydrolysis of sodium hydroxide-pretreated sallow were studied in an ultrafiltration membrane reactor in the presence of different concentrations of glucose. In the UF membrane reactor low-molecular-weight products wer...

Sims, K.A.; Cheryan, M., 1992: Continuous saccharification of corn starch in a membrane reactor part ii. membrane performance and reactor stability. Fouling of the hollow-fiber ultrafiltration membrane was not significant. However, there was a considerable difference in the steady-state permeate flux for each of the solutions studied. The feed solution containing 300 g/L glucose and 33 g/L liq...

Matsumura M.; Hirata J., 1989: Continuous simultaneous saccharification and fermentation of raw starch in a membrane reactor. A kinetic model for simultaneous saccharification and fermentation (SSF) of raw starch is proposed. The model includes the effect of ethanol on an active site for saccharification and the decay of a raw starch affinity site. The kinetic parameters...

Lopez Ulibarri, R.; Hall, G.M., 1997: Saccharification of cassava flour starch in a hollow-fiber membrane reactor. The enzymatic saccharification of cassava flour starch with Aspergillus niger glucoamylase was studied in a hollow-fiber enzymatic membrane reactor (HF-EMR). The optimization of the process was also investigated. The physical properties suitable f...

Sims, K.A.; Cheryan, M., 1992: Continuous saccharification of corn starch in a membrane reactor part 1. conversion capacity and productivity. Effects of enzyme concentration, substrate concentration and residence time on substrate conversion, reactor capacity and productivity were evaluated. As enzyme concentration increased from 1 to 6 g/L, substrate conversion also increased. Substrat...

Lozano, P.; Bernal, B.; Jara, A.G.; Belleville, M-Pierre., 2014: Enzymatic membrane reactor for full saccharification of ionic liquid-pretreated microcrystalline cellulose. Ultrafiltration reactors based on polymeric or ceramic membranes were shown to be suitable catalytic systems for fast enzymatic saccharification of cellulose, allowing the full recovery and reuse of enzymes. By pre-treating cellulose with the IL 1...

Alfani, F.A.banesi, D1; Cantarella, M1; Scardi, V1; Vetromile, A., 1982: Kinetics of enzymatic saccharification of cellulose in a flat-membrane reactor Relevant to biomass energy production. Biomass 2(4): 245-253