THE EFFECTS OF BORON DERIVATIVES AS PRETREATMENT CHEMICALS FOR BIODEGRADATION OF SUNFLOWER STALKS
Yükleniyor...
Dosyalar
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Univ Bio-Bio
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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)(3)H2O], boron oxide [B2O3], borax decahydrate [Na(2)B(4)O(7)10H(2)O], disodium octaborate tetrahydrate [Na(2)B(8)O(13)4H(2)O] 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%).
Açıklama
WOS: 000391185500014
Anahtar Kelimeler
Enzymatic hydrolysis, enzymatic saccharification, glucan, lignin, xylan
Kaynak
Maderas-Ciencia Y Tecnologia
WoS Q Değeri
Q2
Scopus Q Değeri
N/A
Cilt
18
Sayı
4
