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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sunflower stalk as a carbon source inductive for fungal xylanase production

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Author(s):
de Souza, Jaqueline B. [1, 2] ; Michelin, Michele [3] ; Amancio, Francisco L. R. [1, 2, 4] ; Vital Brazil, Osiris A. [1, 5, 6] ; Polizeli, Maria de Lourdes T. M. [7] ; Ruzene, Denise S. [1, 5, 6] ; Silva, Daniel P. [5, 6] ; Mendonca, Marcelo da C. [1, 2, 4] ; Lopez, Jorge A. [1, 2, 4]
Total Authors: 9
Affiliation:
[1] Univ Tiradentes, Postgrad Program Ind Biotechnol, BR-49032490 Aracaju, SE - Brazil
[2] Inst Technol & Res, BR-49032490 Aracaju, SE - Brazil
[3] Univ Minho, Ctr Biol Engn, Campus Gualtar, P-4710057 Braga - Portugal
[4] Silva, Daniel P., Univ Fed Sergipe, Northeastern Biotechnol Network RENORBIO SE, BR-49100000 Sao Cristovao, Sergipe, Brazil.de Souza, Jaqueline B., Univ Tiradentes, Postgrad Program Ind Biotechnol, BR-49032490 Aracaju, SE - Brazil
[5] Univ Fed Sergipe, Ctr Exact Sci & Technol, BR-49100000 Sao Cristovao, SE - Brazil
[6] Univ Fed Sergipe, Northeastern Biotechnol Network RENORBIO SE, BR-49100000 Sao Cristovao, Sergipe - Brazil
[7] Univ Sao Paulo, Dept Biol, FFCLRP, BR-14040901 Ribeirao Preto, SP - Brazil
Total Affiliations: 7
Document type: Journal article
Source: INDUSTRIAL CROPS AND PRODUCTS; v. 153, OCT 1 2020.
Web of Science Citations: 0
Abstract

Enzymes represent a growing market due to their industrial applications, whose use on a large scale is restricted by their high cost of production. This stimulates studies with other sources such as the use of agro-industrial lignocellulosic residues in the medium composition for its production. Thus, in this work, in natura sunflower stalks (Helianthus annuus L.) and its respective alkaline and autohydrolysis pre-treatment liquors were used as carbon sources inducing xylanase production by Aspergillus sp. fermentation. Results showed xylanasic activities of 2.97 and 4.91 U/mL, using alkaline and autohydrolysis liquors, respectively, while the in natura residue displayed the highest value (17.48 U/mL). On the other hand, the in natura sunflower stalk + liquors (alkaline and autohydrolysis, separately) blend significantly improved enzyme production, 6.34 and 11.98 U/mL, compared with the use of each liquor as the sole source inducing. Therefore, sunflower stalks and their liquors are potential inducing sources for the xylanase production, compared with the commercial purified xylan. (AU)