Production and characterization of oxidized cassava starch (Manihot esculenta Crantz) biodegradable films

2011 ◽  
Vol 63 (10) ◽  
pp. 595-603 ◽  
Author(s):  
Renata Baraldi de Pauli ◽  
Leda Battestin Quast ◽  
Ivo Mottin Demiate ◽  
Lyssa Setsuko Sakanaka
2021 ◽  
Vol 264 ◽  
pp. 118038
Author(s):  
Haoqiang Yang ◽  
Na Yi ◽  
Shuai Zhao ◽  
Zhouyang Xiang ◽  
Mirza Faisal Qaseem ◽  
...  

2010 ◽  
Vol 30 (1) ◽  
pp. 213-217 ◽  
Author(s):  
Roberto do Nascimento Silva ◽  
Fábio Pereira Quintino ◽  
Valdirene Neves Monteiro ◽  
Eduardo Ramirez Asquieri

The high demands for sugars and the development of enzymatic technology have increased the production of sweeteners, especially for glucose and fructose syrups. This work describe a technology for glucose and fructose syrups from Brazilian cassava starch using enzymes produced by soil microrganisms isolated from the Brazilian Cerrado soil. Firstly, Aspergillus niger and Streptomyces sp. were isolated from the soil and used as glucoamylase (GA) and glucose isomerase (GI) producer sources. After characterization, GA and GI exhibited optimum pH 4.5 and 8.0, respectively. GA showed maximum activity at 60 ºC and GI at 85 ºC. GA and GI retained 65 and 80%, respectively, of initial activity after 180 minutes of incubation at 60 ºC. The kinetic parameters Km and Vmáx were 0.476 (mg.mL-1) and 8.58 (µmol/minute) for GA and 0.082 (M) and 48.20 (µmol/minute) for GI. The maximum glucose syrups production occurred after 24 hours of reaction with a 98% yield. The production of fructose syrups with 42% (w/v) was reached after 96 hours of reaction.


2010 ◽  
Vol 62 (12) ◽  
pp. 637-646 ◽  
Author(s):  
Lucas Daniel Tivana ◽  
Petr Dejmek ◽  
Björn Bergenståhl

Plant Science ◽  
2001 ◽  
Vol 160 (4) ◽  
pp. 733-737 ◽  
Author(s):  
Thidarat Eksittikul ◽  
Montri Chulavatnatol ◽  
Tipaporn Limpaseni

2007 ◽  
Vol 78 (4) ◽  
pp. 1212-1220 ◽  
Author(s):  
F. Martínez-Bustos ◽  
M. López-Soto ◽  
E. San Martín-Martínez ◽  
J.J. Zazueta-Morales ◽  
J.J. Velez-Medina

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