TY  - JOUR
AU  - Gaspar, M
AU  - Juhasz, T
AU  - Szengyel, Z
AU  - Réczey, Istvánné
TI  - Fractionation and utilisation of corn fibre carbohydrates
JF  - PROCESS BIOCHEMISTRY
J2  - PROCESS BIOCHEM
VL  - 40
PY  - 2005
IS  - 3-4
SP  - 1183
EP  - 1188
PG  - 6
SN  - 1359-5113
DO  - 10.1016/j.procbio.2004.04.004
UR  - https://m2.mtmt.hu/api/publication/2636789
ID  - 2636789
AB  - Corn fibre contains starch, cellulose, hemicellulose, lignin, oil,
protein, etc. The separation and the utilisation of its carbohydrate
components were studied. A 99.8% of the starch was removed by a
two-step enzymtic hydrolysis. The remaining solid fraction was
pretreated with alkali (2.5% NaOH) and alkaline peroxide (2.5% NaOH,
0.6% H2O2), in order to isolate corn fibre gum (CFG). The highest yield
could be obtained under the most severe conditions (alkaline peroxide,
120degreesC, 120 min). Following the pretreatment 51.3% of the corn
fibre gum could be isolated by alcoholic precipitation from the soluble
fraction. The solid fraction was used as carbon source for cellulase
enzyme fermentation and as substrate for enzymatic hydrolysis. A 30%
higher filter paper activity was obtained using pre-treated corn fibre
as carbon source compared to the activities reached on original and
destarched corn fibre. However, 15% higher filter paper activities were
obtained on Solka Floe than on the pre-treated corn fibre samples. The
enzymes produced were used for the hydrolysis of the pre-treated corn
fibre substrate. The results of hydrolysis were compared to the
performance of industrial enzymes. After 24 h of hydrolysis, the
carbohydrate yields showed that the enzyme produced on pre-treated corn
fibre could degrade the corn fibre substrate approximately 15% more
efficiently. (C) 2004 Elsevier Ltd. All rights reserved.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Gaspar, M
AU  - Benko, Z
AU  - Dogossy, Gábor
AU  - Réczey, Istvánné
AU  - Czigány, Tibor
TI  - Reducing Water Absorption in Compostable Starch-based Plastics
JF  - POLYMER DEGRADATION AND STABILITY
J2  - POLYM DEGRAD STABIL
VL  - 90
PY  - 2005
IS  - 3
SP  - 563
EP  - 569
PG  - 7
SN  - 0141-3910
DO  - 10.1016/j.polymdegradstab.2005.03.012
UR  - https://m2.mtmt.hu/api/publication/1083732
ID  - 1083732
LA  - English
DB  - MTMT
ER  -