A method for producing a biopolymer
The present invention relates to a method for producing a biopolymer, comprising the steps of providing a culture medium comprising a carbon source, a nitrogen source, and a plurality of mineral sources; inoculating the culture medium with a Aspergillus flavus with an inoculum size in a range of 0.2...
| Main Authors: | , , , |
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| Format: | Patent |
| Published: |
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/33129/ |
| _version_ | 1848847404733825024 |
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| author | Idris, Azni Aljuboori, Ahmad H. Rajab Abdullah, Norhafizah Mohamad, Rosfarizan |
| author_facet | Idris, Azni Aljuboori, Ahmad H. Rajab Abdullah, Norhafizah Mohamad, Rosfarizan |
| author_sort | Idris, Azni |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The present invention relates to a method for producing a biopolymer, comprising the steps of providing a culture medium comprising a carbon source, a nitrogen source, and a plurality of mineral sources; inoculating the culture medium with a Aspergillus flavus with an inoculum size in a range of 0.2 to 10 % by volume; incubating the culture medium; filtering the culture medium, thereby separating the Aspergillus flavus and the biopolymer; purifying the biopolymer; wherein the carbon source to nitrogen source is in a molar ratio of 5:1, pH of the culture medium is 5 to 9, the temperature is 25 to 40ºC, inoculum size is 0.2 to 2 % by volume, shaking speed is 50 to 200 rpm, and culture time is 12 to 60 hours. A biopolymer produced having a molecular weight in a range of 2.466x104 to 2.68 x104 Dalton, a plurality of functional groups, a plurality of chemical elements, a sugar, a protein, a minimum flocculating efficiency of 90 % in a pH range of 3 to 7 and a temperature range of 10 to 100ºC. |
| first_indexed | 2025-11-15T09:18:04Z |
| format | Patent |
| id | upm-33129 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:18:04Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-331292014-12-24T01:26:04Z http://psasir.upm.edu.my/id/eprint/33129/ A method for producing a biopolymer Idris, Azni Aljuboori, Ahmad H. Rajab Abdullah, Norhafizah Mohamad, Rosfarizan The present invention relates to a method for producing a biopolymer, comprising the steps of providing a culture medium comprising a carbon source, a nitrogen source, and a plurality of mineral sources; inoculating the culture medium with a Aspergillus flavus with an inoculum size in a range of 0.2 to 10 % by volume; incubating the culture medium; filtering the culture medium, thereby separating the Aspergillus flavus and the biopolymer; purifying the biopolymer; wherein the carbon source to nitrogen source is in a molar ratio of 5:1, pH of the culture medium is 5 to 9, the temperature is 25 to 40ºC, inoculum size is 0.2 to 2 % by volume, shaking speed is 50 to 200 rpm, and culture time is 12 to 60 hours. A biopolymer produced having a molecular weight in a range of 2.466x104 to 2.68 x104 Dalton, a plurality of functional groups, a plurality of chemical elements, a sugar, a protein, a minimum flocculating efficiency of 90 % in a pH range of 3 to 7 and a temperature range of 10 to 100ºC. 2011-11-02 Patent NonPeerReviewed Azni Idris (2011) A method for producing a biopolymer. PI2011005282. |
| spellingShingle | Idris, Azni Aljuboori, Ahmad H. Rajab Abdullah, Norhafizah Mohamad, Rosfarizan A method for producing a biopolymer |
| title | A method for producing a biopolymer |
| title_full | A method for producing a biopolymer |
| title_fullStr | A method for producing a biopolymer |
| title_full_unstemmed | A method for producing a biopolymer |
| title_short | A method for producing a biopolymer |
| title_sort | method for producing a biopolymer |
| url | http://psasir.upm.edu.my/id/eprint/33129/ |