Optimization and Immobilization of alpha-amylase from <i>Bacillus subtilis</i> in calcium alginate and calcium alginate – cellulosic residue beads
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چکیده
منابع مشابه
Addition of Fillers to Sodium Alginate Solution Improves Stability and Immobilization Capacity of the Resulting Calcium Alginate Beads
Background: Although advantages of immobilization of cells through entrapment in calcium alginate gel beads have already been demonstrated, nevertheless, instability of the beads and the mass transfer limitations remain as the major challenges.Objective: The objective of the present study was to increase the stability, porosity (reduce mass transfer limit...
متن کاملStatistical optimization of alpha-amylase production by Streptomyces erumpens MTCC 7317 cells in calcium alginate beads using response surface methodology.
Alpha-amylase has a wide range of applications in starch industries, i.e. baking, brewing, distillery, etc. The alpha-amylase production from Streptomyces erumpens MTCC 7317 immobilized cells was compared with that of free cells. The immobilized cells of S. erumpens in calcium alginate beads were more effective for production of alpha-amylase (12.2% more yield) than free cells. Response surface...
متن کاملPreparation and Evaluation of Ketoprofen-loaded Calcium alginate beads
Ionotropic gelation method was used to entrap Ketoprofen (KP) into calcium alginate beads. KP is one of the non steroidal anti-inflammatory drugs (NSAIDs); it has a short half life (1.5-2 h) and deleterious side effects on GIT such as irritation and ulceration. Beads were investigated in-vitro for possible sustained drug release and in-vivo as a gastro-protective system for KP. The curing time ...
متن کاملImmobilization of a Plant Lipase from Pachira aquatica in Alginate and Alginate/PVA Beads
This study reports the immobilization of a new lipase isolated from oleaginous seeds of Pachira aquatica, using beads of calcium alginate (Alg) and poly(vinyl alcohol) (PVA). We evaluated the morphology, number of cycles of reuse, optimum temperature, and temperature stability of both immobilization methods compared to the free enzyme. The immobilized enzymes were more stable than the free enzy...
متن کاملThe drug release profile from calcium-induced alginate gel beads coated with an alginate hydrolysate.
Calcium-induced alginate gel bead (Alg-Ca) coated with an alginate hydrolysate (Alg), e.g. the guluronic acid block (GB) was prepared and the model drug, hydrocortisone release profiles were investigated under simulated gastrointestinal conditions. Their molecular weights were one sixth or one tenth that of Alg and the diffraction patterns of the hydrolysates resembled that of Alg. The drug rel...
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ژورنال
عنوان ژورنال: Microbiology Research
سال: 2020
ISSN: 2036-7481,2036-7473
DOI: 10.4081/mr.2020.8458