Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1590/S0001-37652012000200018 |
Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain | |
Paulo, Elinalva M.1; Boffo, Elisangela F.4; Branco, Alexsandro2; Valente, Angela M. M. P.3; Melo, Itamar S.3; Ferreira, Antonio G.5; Roque, Milton R. A.6; de Assis, Sandra A.2 | |
通讯作者 | de Assis, Sandra A. |
来源期刊 | ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
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ISSN | 0001-3765 |
出版年 | 2012 |
卷号 | 84期号:2页码:495-507 |
英文摘要 | The genus Leuconostoc belongs to a group of lactic acid bacteria usually isolated from fermented vegetables, whichincludes species involved in the production of exopolysaccharides (EPS). These biopolymers possess considerable commercial potential. Because of the wide variety of industrial applications of EPS, this study aimed to produce and characterize the native exopolysaccharide strain Leueonostoe pseudomesenteroides R2, which was isolated from cabbage collected in a semi-arid region of Bahia. We employed the following conditions for the production of EPS: 10.7% sucrose, pH 8.2, without agitation and incubation at 28 C for 30 hours. The fermentation broth was treated with ethanol and generated two types of polysaccharide substances (EPS I and EPS II). The identification of EPS I and EPS II was conducted using FT-JR. 1H, DC and DEPT-135 NMR spectra. The two substances were identified as linear ciextran a polysaccharides (1 6) which indicated different characteristics with respect to thermal analysis and density of free packaging, viscosity and time of solubilization. Both dextrans are of low density, possess high thermal stability and exhibited the behavior characteristic of pseudoplastic polymers. |
英文关键词 | Leuconostoe pseudomesenteroides exopolysaccharide polymer dextran. |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000317439100018 |
WOS关键词 | LACTIC-ACID BACTERIA ; BIOLOGICAL RESPONSE MODIFIERS ; POLYSACCHARIDE ; DEXTRAN ; OPTIMIZATION ; SPECTROSCOPY ; CULTIVATION ; PULLULAN ; DESIGN ; SUGARS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/171166 |
作者单位 | 1.Univ Estadual Feira de Santana, Dept Ciencias Biol, BR-44036900 Feira De Santana, BA, Brazil; 2.Univ Estadual Feira de Santana, Dept Saude, BR-44036900 Feira De Santana, BA, Brazil; 3.Embrapa Meio Ambiente CNPMA, Lab Microbiol Ambiental, BR-13820000 Jaguariuna, SP, Brazil; 4.Univ Fed Bahia, Inst Quim, Dept Quim Organ, BR-40170115 Salvador, BA, Brazil; 5.Univ Fed Sao Carlos, Dept Quim, Lab Ressonancia Magnet Nucl, BR-13565905 Sao Carlos, SP, Brazil; 6.Univ Fed Bahia UFBA, Inst Ciencias Saude, BR-40170115 Salvador, BA, Brazil |
推荐引用方式 GB/T 7714 | Paulo, Elinalva M.,Boffo, Elisangela F.,Branco, Alexsandro,et al. Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain[J],2012,84(2):495-507. |
APA | Paulo, Elinalva M..,Boffo, Elisangela F..,Branco, Alexsandro.,Valente, Angela M. M. P..,Melo, Itamar S..,...&de Assis, Sandra A..(2012).Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain.ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS,84(2),495-507. |
MLA | Paulo, Elinalva M.,et al."Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain".ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS 84.2(2012):495-507. |
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