<b>Citric waste saccharification under different chemical treatments
Second generation ethanol from lignocellulose materials has been used in applications for food processing wastes. Since Brazil has a leading position in orange juice exports, the influence of acid and alkali pretreatments on liquor saccharification, solubilization of solid fraction and mass yield wa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2015-10-01
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| Series: | Acta Scientiarum: Technology |
| Subjects: | |
| Online Access: | http://186.233.154.254/ojs/index.php/ActaSciTechnol/article/view/28133 |
| _version_ | 1818749283565830144 |
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| author | Carlos Eduardo de Farias Silva Georgia Nayane Silva Belo Gois Livia Manuela Oliveira da Silva Renata Maria Rosas Garcia Almeida Ana Karla de Souza Abud |
| author_facet | Carlos Eduardo de Farias Silva Georgia Nayane Silva Belo Gois Livia Manuela Oliveira da Silva Renata Maria Rosas Garcia Almeida Ana Karla de Souza Abud |
| author_sort | Carlos Eduardo de Farias Silva |
| collection | DOAJ |
| description | Second generation ethanol from lignocellulose materials has been used in applications for food processing wastes. Since Brazil has a leading position in orange juice exports, the influence of acid and alkali pretreatments on liquor saccharification, solubilization of solid fraction and mass yield was evaluated. Time and Cacid or Calkaline at different concentrations of solids (low to moderate, 1 to 9%) and high catalyst concentrations were analyzed. A hydrothermal pretreatment was conducted under the same conditions of acid and alkaline treatments to investigate the relative selectivity increase in using the catalysts. The chemical analyses of wastes indicated a 70% total carbohydrate level denoting a promising raw material for bioethanol production. Pretreatment caused acid saccharifications between 25 and 65% in total reducing sugars (TRS) and mass yields (MY) between 30 and 40%. In alkaline pretreatment, these rates ranged between 2 and 22.5% and between 30 and 80, respectively. In hydrothermal pretreatment, solubilized TRS varied between 3 and 37%, whereas MY remained between 45 and 60%, respectively. Cbiomass strongly influenced the three variables; in the same way, time affected MY. |
| first_indexed | 2024-12-18T04:01:19Z |
| format | Article |
| id | doaj.art-115afcac37b742f0b20becf4e293d4c1 |
| institution | Directory Open Access Journal |
| issn | 1806-2563 1807-8664 |
| language | English |
| last_indexed | 2024-12-18T04:01:19Z |
| publishDate | 2015-10-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Technology |
| spelling | doaj.art-115afcac37b742f0b20becf4e293d4c12022-12-21T21:21:41ZengUniversidade Estadual de MaringáActa Scientiarum: Technology1806-25631807-86642015-10-0137438739510.4025/actascitechnol.v37i4.2813312656<b>Citric waste saccharification under different chemical treatmentsCarlos Eduardo de Farias Silva0Georgia Nayane Silva Belo Gois1Livia Manuela Oliveira da Silva2Renata Maria Rosas Garcia Almeida3Ana Karla de Souza Abud4Universidade Federal de AlagoasUniversidade Federal de AlagoasUniversidade Federal de AlagoasUniversidade Federal de AlagoasUniversidade Federal de SergipeSecond generation ethanol from lignocellulose materials has been used in applications for food processing wastes. Since Brazil has a leading position in orange juice exports, the influence of acid and alkali pretreatments on liquor saccharification, solubilization of solid fraction and mass yield was evaluated. Time and Cacid or Calkaline at different concentrations of solids (low to moderate, 1 to 9%) and high catalyst concentrations were analyzed. A hydrothermal pretreatment was conducted under the same conditions of acid and alkaline treatments to investigate the relative selectivity increase in using the catalysts. The chemical analyses of wastes indicated a 70% total carbohydrate level denoting a promising raw material for bioethanol production. Pretreatment caused acid saccharifications between 25 and 65% in total reducing sugars (TRS) and mass yields (MY) between 30 and 40%. In alkaline pretreatment, these rates ranged between 2 and 22.5% and between 30 and 80, respectively. In hydrothermal pretreatment, solubilized TRS varied between 3 and 37%, whereas MY remained between 45 and 60%, respectively. Cbiomass strongly influenced the three variables; in the same way, time affected MY.http://186.233.154.254/ojs/index.php/ActaSciTechnol/article/view/28133pretreatmentbiomassexperimental designorange. |
| spellingShingle | Carlos Eduardo de Farias Silva Georgia Nayane Silva Belo Gois Livia Manuela Oliveira da Silva Renata Maria Rosas Garcia Almeida Ana Karla de Souza Abud <b>Citric waste saccharification under different chemical treatments Acta Scientiarum: Technology pretreatment biomass experimental design orange. |
| title | <b>Citric waste saccharification under different chemical treatments |
| title_full | <b>Citric waste saccharification under different chemical treatments |
| title_fullStr | <b>Citric waste saccharification under different chemical treatments |
| title_full_unstemmed | <b>Citric waste saccharification under different chemical treatments |
| title_short | <b>Citric waste saccharification under different chemical treatments |
| title_sort | b citric waste saccharification under different chemical treatments |
| topic | pretreatment biomass experimental design orange. |
| url | http://186.233.154.254/ojs/index.php/ActaSciTechnol/article/view/28133 |
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