Commercial production of alpha amylase enzyme for potential use in the textile industries in Bangladesh

doi:10.12692/ijb/13.4.149-157

Cited by 7 publications

(2 citation statements)

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“…α-Amylase is mainly used for desizing cotton fabrics, smoothing fabrics, and wet processing textiles [39][40][41][42][43][44]. The main function of amylase is to decompose starch.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Treatment of Cotton Fabric for Desizing

Rafikov,

Fayzullaeva,

Shonakhunov

et al. 2023

J. Chem. Eng. Res. Updates.

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The possibility of softening the conditions of biochemical treatment to remove the sizing agent from the surface of the fibers in the preparation of cotton fabric for dyeing has been studied. The efficiency of the α-amylase enzyme was evaluated by the amount of sugars reduced in the modifying solution, as well as by the capillarity of the samples of the treated fabrics. The enzyme used is active towards starch starting from a low concentration (0.02 g/l) and low temperature (32°C). The effect of enzyme concentration from 0.02 to 6.0 g/l, solution pH from 4.5 to 8.5, temperature from 32 to 60°C on the amount of sugars in the solution after enzymatic treatment, and fabric capillarity was determined. Almost complete removal of sizing from the surface of fibers of the original fabric was achieved under moderate and mild processing conditions: α-amylase concentration 1.0÷5.0 g/l, pH=6.0÷7.0, temperature 50-55°C. Based on the dependence of the logarithm of the reaction rate on the reciprocal temperature, the activation energy of the desizing reaction was calculated, which turned out to be equal to E = 17.5 kJ/mol. The low activation energy shows that the desizing process is carried out under energetically favorable conditions with moderate heating. The surface morphology of treated and untreated samples of cotton fabric was studied by scanning electron microscopy. The removal of the adhesive substance from the surface of the fibers, the separation of individual fibers, and the smoothing of the fabric surface after treatment with an amylase solution were recorded.

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“…α-Amylase is mainly used for desizing cotton fabrics, smoothing fabrics, and wet processing textiles [39][40][41][42][43][44]. The main function of amylase is to decompose starch.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Treatment of Cotton Fabric for Desizing

Rafikov,

Fayzullaeva,

Shonakhunov

et al. 2023

J. Chem. Eng. Res. Updates.

View full text Add to dashboard Cite

show abstract

“…Amylase has been used in many industries such as in textile industries for smoothening the fabric [8], baking industries for improving the texture and taste from bread, laundry industries in detergent composition [9], beverage industries to get high sugar concentration in fruit juice [10], and paper industries for degrading starch [11]. Regarding Amylase productions, other studies have performed several reports to optimize amylase production to seek the best amylase activity for industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Stability of Amylase Crude Powder from Aspergillus awamori KT-11 at Different Storage Temperatures

Perwitasari¹,

Juanssilfero²,

Andriani³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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Amylase is one kind of biotechnology product that has been used in many sector industries. Production of amylase powder from Aspergillus awamori KT-11 has been optimized successfully in the previous study. However, the stability of its activity, which is crucial in industrial application, has not yet been well studied. This study aimed to investigate the stability of amylase crude powder activity from A. awamori KT-11 at different storage temperatures. Amylase crude powder was stored at 4 o C and 25 o C. For the stability test, the crude powder with optimum storage temperature was diluted with phosphate buffer pH 4.8 and stored at 4 o C, 25 o C, and -20 o C. The results showed that the activity of amylase crude powder was stable at 25 o C after nine months of storage with total activity of 2807 U/mL. On the other hand, the amylase extract liquid enzyme shows better activity when stored at 4 o C (with total activity 1000 U/mL after four-week storage time) than stored at temperatures 25 o C or -20 o C. The findings also showed that crude amylase liquid extracts are not stored in a negative temperature environment. This is beneficial to enterprises because it lowers the cost of obtaining negative temperatures and saves energy.

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