| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000544770 |
| ISSN: | 0718-221X |
| Authors: | Tozluoglu, Ayhan1 |
| Institutions: | 1Duzce University, Faculty of Forestry, Duzce. Turquía |
| Year: | 2016 |
| Volumen: | 18 |
| Number: | 4 |
| Pages: | 663-676 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | This study examined the suitability of boron derivatives as pretreatment chemicals with regard to their efficiency in the enzymatic saccharification of sunflower stalks. It was hypothesized that the utilization of boron derivatives might improve enzymatic digestibility. The aim of this study was to examine the effect of NaOH and the boron derivatives sodium borohydride NaBH4, calcined tincal Na2B4O7(1-5)H2O, colemanite CaB3O4(OH)3H2O, boron oxide B2O3, borax decahydrate Na2B4O(7)10H2O, disodium octaborate tetrahydrate Na2B8O(13)4H2O and boric acid H3BO3 on enzymatic saccharification. Results showed that the boron derivatives prevented peeling reactions and preserved more glucan; however, the NaOH removed the highest amounts of xylan and lignin from the structure. Significant xylan removal was observed with H3BO3, while B2O3 was as effective as NaBH4 and NaOH for selective lignin removal. The highest enzymatic saccharification yield (59,5%) resulted with the 2% NaOH pretreatment, whereas slightly lower yields were achieved with some boron derivatives (1% NaBH4-45%; 2% B2O3-40,2%; and 2% H3BO3-36,7%). |
| Keyword: | Enzymatic hydrolysis, Enzymatic saccharification, Glucan, Lignin, Xylan |
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