PENINGKATAN DIGESTIBILITAS DAN PERUBAHAN STRUKTUR TANDAN KOSONG KELAPA SAWIT OLEH PRETREATMENT Pleurotus floridanus DAN ASAM FOSFAT
Oil palm empty fruit bunches (OPEFB) is abundance and not optimally utilized as lignocellulose-based products. OPEFB has low digestibility and difficult to process into its derivatives. This study aims to improve digestibility of OPEFB through biological pretreatment with white-rot fungi. Stages of...
Saved in:
| Main Authors: | , |
|---|---|
| 格式: | Theses and Dissertations NonPeerReviewed |
| 出版: |
[Yogyakarta] : Universitas Gadjah Mada
2013
|
| 主題: | |
| 在線閱讀: | https://repository.ugm.ac.id/123407/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=63518 |
| 標簽: |
添加標簽
沒有標簽, 成為第一個標記此記錄!
|
| 總結: | Oil palm empty fruit bunches (OPEFB) is abundance and not optimally
utilized as lignocellulose-based products. OPEFB has low digestibility and difficult to
process into its derivatives. This study aims to improve digestibility of OPEFB
through biological pretreatment with white-rot fungi. Stages of this study were (1)
selection white-rot fungi which selectively degrade lignin, (2) enhancement the
digestibility of OPEFB by Mn2+ and Cu2+ addition, (3) improvement digestibility of
OPEFB by a combination of biological pretreatment with phosphoric acid
pretreatment. All the studies were conducted on laboratory scale. Observations were
made on the changes of dry weight, lignin, cellulose, hemicellulose, physical
structure by SEM analysis, functional groups by FTIR analysis, and the crystallinity
of cellulose. Screening is done on Polyota sp, Pleurotus sp and sp Agraily. Pleurotus
sp chosen for further experiments and identified as P. Floridanus LIPIMC966,
because it can alter the lignin content from 19.63% to 15.22%, hemicellulose from
14.77% to 12.63%, and increase cellulose from 39.92% to 56.04%. The addition
effect of Mn2+ and Cu2+ on the biological pretreatment using P. Floridanus could
reduces the dry weight from 27.43% to 32.88% |
|---|