AMYLASE..............................pptx

Silpa559854 697 views 27 slides May 28, 2024
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About This Presentation

Amylase


Slide Content

COMMERCIAL PRODUCTION OF AMYLASE AND THEIR USES

CONTENT Introduction Classification of amylase Comparison of amylase Production of amylase Uses AMYLASE 2

INTRODUCTION Amylase is a digestive enzyme predominantly secreted by the pancreas and salivary glands and is present in other tissues at minimal levels. Amylase was initially described in the early 1800s and is one of the pioneering enzymes to undergo scientific investigation. Amylase is a type of enzyme that catalyzes the hydrolysis (breakdown) of starch and glycogen into smaller carbohydrate molecules such as maltose, maltotriose, and dextrins. It is produced by various organisms, including humans, animals, plants, and microorganisms, and plays a crucial role in carbohydrate metabolism and digestion. AMYLASE 3

Caption 4 AMYLASE

AMYLASE 5 COMPARISON OF AMYLASE 2

PRODUCTION OF AMYLASE STEPS OF PRODUCTION OF AMYLASE Sources Fermentation Determination of enzyme activity Purification Formulation and stabilization Quality control Packaging and distribution AMYLASE 6

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SOURCES Selection of Source : Amylase can be obtained from various sources including plants, animals, bacteria, and fungi. Depending on the desired properties and application, the appropriate source is selected. For example, fungal amylases, particularly those derived from strains of Aspergillus or Rhizopus , are commonly used in industrial applications due to their high enzyme activity and stability under various conditions. AMYLASE 8

α -Amylase can be isolated from plants, animals or microorganisms. The most widely used microorganisms for the production of alpha-amylase include B acteria F ungi . AMYLASE 9 Bacillus aspergillus

AMYLASE 10 BACTERIAL SOURCE • Amylase is produced by different species of bacteria, but commercially it is produced by the following species. Bacillus licheniformis B. sterothermophilis B. amyloliquefaciens B. subtilis B. polymyxia B. vulgarus .

FUNGAL AMYLASE Amylase is produced by different species of fungi, but commercially it is produced by the following species. Aspergillus orizae A. niger Penicillium sps . Thermomyces lanugino AMYLASE 11

2. FERMENTATION There are mainly two methods which are used for production of α-Amylase on a commercial scale. These are: Submerged fermentation (SMF) Solid State fermentation (SSF) AMYLASE 12

Submerged fermentation (SMF): Submerged fermentation ( SmF ) employs free flowing liquid substrates , such as molasses and broths. The products yielded in fermentation are secreted into the fermentation broth. This fermentation technique is suitable for microorganisms such as bacteria that require high moisture content for their growth. Sml is primarily used for the extraction of secondary metabolites that need to be used in liquid form. AMYLASE 13

This method has several advantages: SMF allows the utilization of genetically modified organisms to a greater extent than SSF. The sterilization of the medium and purification process of the end products can be done easily. Also the control of process parameters like temperature, pH, aeration, oxygen transfer, and moisture can be done conveniently AMYLASE 14

2. SOLID STATE FERMENTATION Solid state fermentation (SSF) systems appear promising due to the natural potential and advantages they offer. SSF resembles the natural habitat of microorganisms and is, therefore, the preferred choice for microorganisms to grow and produce useful value-added products. Solid state fermentation is a method used for microbes which require less moisture content for their growth. The solid substrates commonly used in this method are, bran, bagasse, and paper pulp. AMYLASE 15

The main advantage is that nutrient-rich waste materials can be easily recycled and used as substrates in this method. Other advantages that SSF offers over SmF are simpler equipments , higher concentration of products and lesser effluent generation . For several such reasons SSF is considered as a promising method for commercial production of enzymes. AMYLASE 16

3. Determination of enzyme activity THREE METHODS DINITROSALICYCLIC ACID METHOD (DNS) In the dinitrosalicyclic acid method, aliquots of the substrate stock solution are mixed with the enzyme solution. Followed by 10 minutes of incubation at 50 celsius . DNS reagent is added to the test tube and the mixture is incubated in a boiling water bath for 5 minutes. After cooling to room temperature, the absorbance of the supernatant at 540nm is measured. AMYLASE 17

NELSON –SOMOGYI (NS) METHOD In the NS method, an aliquot of stock solution of substrate is heated at 50°C for 5min. Preheated (50°C for 5 min) enzyme solution is added to the substrate. This reaction mixture is incubated at 50°C and the reaction is carried out for 10min. After incubation Somogyi copper reagent is added to terminate the reaction. This is then incubated in boiling water bath for 40 min & cooled to room temperature. Finally water is added and the mixture is centrifuged at 13,000 rpm for 1 min and absorbance of supernatant is read at 610 nm. AMYLASE 18

iii. Determination of Activity Using lodine The hydrolytic activity of a-Amylase can be determined based on the principle that starch and iodine react to form a blue colored complex. On hydrolysis of starch this complex changes to a reddish brown colored one. The absorbance can be read after the enzyme substrate reaction has been terminated. This gives a measure of the extent of hydrolysis of starch by α-Amylase. AMYLASE 19

4. Purification Enzymes used for industrial applications are usually crude preparations and require less downstream processing. Whereas the enzymes used clinical and pharmaceutical industry need to be highly purified. The enzyme in the purified form is also a prerequisite in studies of structure-function relationships and biochemical properties . Different strategies for purification of enzymes have been investigated, exploiting specific characteristics of the target biomolecule. Laboratory scale purification for α-amylase includes various combinations of ion exchange, gel filtration, hydrophobicity interactions and reverse phase chromatography . AMYLASE 20

5. FORMULATION AND STABILIZATION The purified enzyme is often formulated into a stable and concentrated form suitable for storage and use in various applications. Stabilizers, preservatives, and other additives may be incorporated to enhance enzyme stability and activity under different conditions. AMYLASE 21

6. QUALITY CONTROL Throughout the production process, quality control measures are implemented to ensure the consistency, purity, and activity of the amylase enzyme. Analytical techniques such as enzyme assays, protein quantification , and electrophoresis are used to assess the quality of the enzyme product. 7. PACKAGING AND DISTRIBUTION : The purified and formulated amylase enzyme is packaged into appropriate containers and shipped for distribution to customers in various industries, including food and beverage, textile, paper, pharmaceutical, and biofuel sectors. AMYLASE 22

USES OF AMYLASE AMYLASE 23

Food Industry : Baking : Amylases are used in baking to break down starches in flour, leading to improved dough handling, increased volume, and enhanced texture of baked goods. Brewing : Amylases are crucial in the brewing process for converting starches in malted grains (such as barley) into fermentable sugars during mashing, which is essential for alcohol production. Production of Sweeteners : Amylases are used to convert starches into various sweeteners like glucose, maltose, and high-fructose corn syrup. Textile Industry : Amylases are utilized in the desizing process to remove starch from fabrics before dyeing or finishing. AMYLASE 24

3. Biofuel Production : Amylases are employed in the conversion of starch-rich feedstocks such as corn, wheat , and cassava into fermentable sugars, which can then be fermented into ethanol for biofuel production. 4. Detergent Industry : Amylases are included in laundry detergents as part of the enzyme cocktail to break down starch-based stains like pasta, rice, and potato residues. 5. Animal Feed Industry : Amylases are used as feed additives to enhance the digestibility of starches in animal feeds, thereby improving the overall nutritional value and efficiency of feed utilization. AMYLASE 25

6. Paper Industry : Amylases are employed in the papermaking process to modify starch-based coatings and improve the paper's strength, smoothness, and printability. 7. Pharmaceutical Industry : Amylases are used in pharmaceutical formulations for their digestive properties, such as aiding in the breakdown of complex carbohydrates in oral dosage forms to facilitate absorption. 8. Diagnostic Applications : Amylase levels in biological fluids (such as blood, urine, and saliva) are measured clinically to diagnose pancreatic disorders , including pancreatitis and pancreatic cancer. AMYLASE 26

REFERENCE JAEM-2-4-10.pdf (appliedenvironmentalmicrobiohttp://article.appliedenvironmentalmicrobiology.com/pdf/JAEM-2-4-10.pdflogy.com) PowerPoint Presentation ( govtsciencecollegedurg.acPowerPoint Presentation (govtsciencecollegedurg.ac.in).in) Microsoft Word - BJM 1692.doc (scielo.br) https://www.scielo.br/j/bjm/a/W9gqJLhHTVTddVzCnvcbSVc/?format=pdf&lang=en AMYLASE 27