Economic model for obtaining cyclodextrins from commercial cgtase
Braz. J. Pharm. Sci. (Online)
; 56: e18993, 2020. graf
Article
in En
| LILACS
| ID: biblio-1249146
Responsible library:
BR40.1
Localization: BR40.1
ABSTRACT
A repetitive batch process was employed followed by membrane ultrafiltration system to produce low-cost cyclodextrins (CDs) using commercial enzymes Toruzyme® cyclomaltodextrin glucanotransferase (CGTase) and its kinetic parameters were determined. The ultrafiltration system enabled the removalof inhibitory products from the reaction medium, allowing the enzyme to be recovered for reuse. A 10 kDa membrane was used to separate the different CDs produced by the CGTase. The substrates evaluated were maltodextrin, corn starch and cassava starch at 5, 10 and 15% (w/V), in the presence and absence of 10% (V/V) ethanol. After reaction for 132 h, 10% (w/V) cassava starch in the presence of ethanol provided the best results with 32.1 mg/mL of ß-CD. Maximum production occurred after 72 h of reaction, with a yield of 87.4% of ß-CD and an α-CD, ß-CD and γ-CD production ratio of 110.08 g, respectively. When eight repetitive batches of 72 h followed by ultrafiltration and crystallization of ß-CD were performed, 2.1 g of precipitate was obtained with a purity of 67.6% ß-CD. The supernatant from the crystallization process was lyophilized and resulted in 35.3% α-CD. The developed model can be used industrially for the production of low cost CDs from easily obtained raw material:
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Ultrafiltration
/
Models, Economic
/
Low Cost Technology
/
Cyclodextrins
/
Starch and Fecula
Type of study:
Health_economic_evaluation
Language:
En
Journal:
Braz. J. Pharm. Sci. (Online)
Journal subject:
Farmacologia
/
Teraputica
/
Toxicologia
Year:
2020
Document type:
Article
Affiliation country:
Brazil
Country of publication:
Brazil