High level phytase production by Aspergillus niger NCIM 563 in solid state culture: response surface optimization, up-scaling, and its partial characterization

Phytase production by Aspergillus niger NCIM 563 was optimized by using wheat bran in solid state fermentation (SSF). An integrated statistical optimization approach involving the combination of Placket–Burman design (PBD) and Box–Behnken design (BBD) was employed. PBD was used to evaluate the effec...

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Veröffentlicht in:Journal of industrial microbiology & biotechnology 2011-09, Vol.38 (9), p.1407-1417
Hauptverfasser: Bhavsar, K, Ravi Kumar, V, Khire, J. M
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Ravi Kumar, V
Khire, J. M
description Phytase production by Aspergillus niger NCIM 563 was optimized by using wheat bran in solid state fermentation (SSF). An integrated statistical optimization approach involving the combination of Placket–Burman design (PBD) and Box–Behnken design (BBD) was employed. PBD was used to evaluate the effect of 11 variables related to phytase production, and five statistically significant variables, namely, glucose, dextrin, NaNO3, distilled water, and MgSO4·7H2O, were selected for further optimization studies. The levels of five variables for maximum phytase production were determined by a BBD. Phytase production improved from 50 IU/g dry moldy bran (DMB) to 154 IU/g DMB indicating 3.08-fold increase after optimization. A simultaneous reduction in fermentation time from 7 to 4 days shows a high productivity of 38,500 IU/kg/day. Scaling up the process in trays gave reproducible phytase production overcoming industrial constraints of practicability and economics. The culture extract also had 133.2, 41.58, and 310.34 IU/g DMB of xylanase, cellulase, and amylase activities, respectively. The partially purified phytase was optimally active at 55°C and pH 6.0. The enzyme retained ca. 75% activity over a wide pH range 2.0–9.5. It also released more inorganic phosphorus from soybean meal in a broad pH range from 2.5 to 6.5 under emulated gastric conditions. Molecular weight of phytase on Sephacryl S-200 was approximately 87 kDa. The K m and V max observed were 0.156 mM and 220 μm/min/mg. The SSF phytase from A. niger NCIM 563 offers an economical production capability and its wide pH stability shows its suitability for use in poultry feed.
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Scaling up the process in trays gave reproducible phytase production overcoming industrial constraints of practicability and economics. The culture extract also had 133.2, 41.58, and 310.34 IU/g DMB of xylanase, cellulase, and amylase activities, respectively. The partially purified phytase was optimally active at 55°C and pH 6.0. The enzyme retained ca. 75% activity over a wide pH range 2.0–9.5. It also released more inorganic phosphorus from soybean meal in a broad pH range from 2.5 to 6.5 under emulated gastric conditions. Molecular weight of phytase on Sephacryl S-200 was approximately 87 kDa. The K m and V max observed were 0.156 mM and 220 μm/min/mg. 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M</creatorcontrib><title>High level phytase production by Aspergillus niger NCIM 563 in solid state culture: response surface optimization, up-scaling, and its partial characterization</title><title>Journal of industrial microbiology &amp; biotechnology</title><addtitle>J Ind Microbiol Biotechnol</addtitle><addtitle>J Ind Microbiol Biotechnol</addtitle><description>Phytase production by Aspergillus niger NCIM 563 was optimized by using wheat bran in solid state fermentation (SSF). An integrated statistical optimization approach involving the combination of Placket–Burman design (PBD) and Box–Behnken design (BBD) was employed. PBD was used to evaluate the effect of 11 variables related to phytase production, and five statistically significant variables, namely, glucose, dextrin, NaNO3, distilled water, and MgSO4·7H2O, were selected for further optimization studies. The levels of five variables for maximum phytase production were determined by a BBD. Phytase production improved from 50 IU/g dry moldy bran (DMB) to 154 IU/g DMB indicating 3.08-fold increase after optimization. A simultaneous reduction in fermentation time from 7 to 4 days shows a high productivity of 38,500 IU/kg/day. Scaling up the process in trays gave reproducible phytase production overcoming industrial constraints of practicability and economics. The culture extract also had 133.2, 41.58, and 310.34 IU/g DMB of xylanase, cellulase, and amylase activities, respectively. The partially purified phytase was optimally active at 55°C and pH 6.0. The enzyme retained ca. 75% activity over a wide pH range 2.0–9.5. It also released more inorganic phosphorus from soybean meal in a broad pH range from 2.5 to 6.5 under emulated gastric conditions. Molecular weight of phytase on Sephacryl S-200 was approximately 87 kDa. The K m and V max observed were 0.156 mM and 220 μm/min/mg. 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Psychology</subject><subject>Fungi</subject><subject>Genetic Engineering</subject><subject>glucose</subject><subject>Inorganic Chemistry</subject><subject>inorganic phosphorus</subject><subject>Laboratories</subject><subject>Life Sciences</subject><subject>Methods. Procedures. Technologies</subject><subject>Microbial engineering. Fermentation and microbial culture technology</subject><subject>Microbiology</subject><subject>molecular weight</subject><subject>Optimization techniques</subject><subject>Original Paper</subject><subject>Phosphate esters</subject><subject>Phosphorus</subject><subject>phytases</subject><subject>Poultry</subject><subject>Poultry feed</subject><subject>solid state fermentation</subject><subject>soybean meal</subject><subject>Soybeans</subject><subject>Statistical methods</subject><subject>Studies</subject><subject>trays</subject><subject>Triticum aestivum</subject><subject>Variables</subject><subject>Wheat bran</subject><subject>xylanases</subject><issn>1367-5435</issn><issn>1476-5535</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFks1u1DAUhSMEoqXwAGzAQkJsGvD1T2Kzq0ZAKxVYQNeR49gZV54k2A7SzMvwqjhkoBILWNmSv3vuPfe4KJ4Cfg0Y128iYCJ5iQGXWJKqPNwrToHVVck55ffznVZ1yRnlJ8WjGG8xxryuycPihAAIRjicFj8uXb9F3nw3Hk3bfVLRoCmM3ayTGwfU7tFFnEzonfdzRIPrTUCfNlcfEa8ocgOKo3cdikklg_Ts0xzMWxRMnMYhK8U5WKUNGqfkdu6gFs1zNE9l1Mq7oT9HauiQSxFNKiSnPNJbFZROJhzpx8UDq3w0T47nWXHz_t3XzWV5_fnD1ebiutScVqnsOOgOZ3NSC8u7WtRWWtK2dSe5zaMSzAhtua47XAkCREPVKQOVVWC0EYyeFa9W3Wz-22xianYuauO9Gsw4x0ZICRwEpv8nBSeyolJk8sVf5O04hyHbyBATnAMscrBCOowxBmObKbidCvsGcLOk3KwpNznlZkm5OeSaZ0fhud2Z7k_F71gz8PIIqGXTNqhBu3jHMY6h-tWcrFzMT0PO9m7Cf3V_vhZZNTaqD1n45gvBwPL_YlIAoz8BpoLKcA</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Bhavsar, K</creator><creator>Ravi Kumar, V</creator><creator>Khire, J. 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M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c536t-d51cd07729c8f5d787f9f2bb7d95f56320423b5c7d068212c16dae16fa1ece843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>6-Phytase - biosynthesis</topic><topic>6-Phytase - isolation &amp; purification</topic><topic>6-Phytase - metabolism</topic><topic>Agricultural biotechnology</topic><topic>Animals</topic><topic>Aspergillus niger</topic><topic>Aspergillus niger - enzymology</topic><topic>Biochemistry</topic><topic>Bioinformatics</topic><topic>Biological and medical sciences</topic><topic>Biomedical and Life Sciences</topic><topic>Biotechnology</topic><topic>Cellulase</topic><topic>Culture Media - chemistry</topic><topic>Dietary fiber</topic><topic>Dietary Fiber - microbiology</topic><topic>Distilled water</topic><topic>economics</topic><topic>endo-1,4-beta-glucanase</topic><topic>Enzymes</topic><topic>Feeds</topic><topic>Fermentation</topic><topic>Fundamental and applied biological sciences. 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It also released more inorganic phosphorus from soybean meal in a broad pH range from 2.5 to 6.5 under emulated gastric conditions. Molecular weight of phytase on Sephacryl S-200 was approximately 87 kDa. The K m and V max observed were 0.156 mM and 220 μm/min/mg. The SSF phytase from A. niger NCIM 563 offers an economical production capability and its wide pH stability shows its suitability for use in poultry feed.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>21184251</pmid><doi>10.1007/s10295-010-0926-z</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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subjects 6-Phytase - biosynthesis
6-Phytase - isolation & purification
6-Phytase - metabolism
Agricultural biotechnology
Animals
Aspergillus niger
Aspergillus niger - enzymology
Biochemistry
Bioinformatics
Biological and medical sciences
Biomedical and Life Sciences
Biotechnology
Cellulase
Culture Media - chemistry
Dietary fiber
Dietary Fiber - microbiology
Distilled water
economics
endo-1,4-beta-glucanase
Enzymes
Feeds
Fermentation
Fundamental and applied biological sciences. Psychology
Fungi
Genetic Engineering
glucose
Inorganic Chemistry
inorganic phosphorus
Laboratories
Life Sciences
Methods. Procedures. Technologies
Microbial engineering. Fermentation and microbial culture technology
Microbiology
molecular weight
Optimization techniques
Original Paper
Phosphate esters
Phosphorus
phytases
Poultry
Poultry feed
solid state fermentation
soybean meal
Soybeans
Statistical methods
Studies
trays
Triticum aestivum
Variables
Wheat bran
xylanases
title High level phytase production by Aspergillus niger NCIM 563 in solid state culture: response surface optimization, up-scaling, and its partial characterization
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