Olive waste | An-Najah Staff

Cellulose acetate from biomass waste of olive industry

Thu, 2015-08-20 09:37 — Othman A. Hamed

Journal Title, Volume, Page:

Journal of Wood Science. 11/2014; 14(3):1442. DOI: 10.1007/s10086-014-1442-y

Year of Publication:

2014

Link:

http://link.springer.com/article/10.1007%2Fs10086-014-1442-y

Authors:

Othman hamed

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

shehdeh Jodeh

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Nisreen Al Hajj

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Emad Hamed

Ahmad abu obaid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

In the present work cellulose powder was extracted from olive industry solid waste and then converted into cellulose acetate. The cellulose powder was extracted from olive industry solid waste by kraft pulping process and multistep bleaching p sequences. An elemental chlorine-free chemical bleaching sequence chlorine dioxide (D)-cold caustic extraction (E)-hypochlorite (H)hydrogen peroxide (P) was used. Cellulose powder was obtained in about 35 % yield. The extracted cellulose and cellulose acetate made from thereof were extensively characterized using Fourier transform infrared spectroscopy, electron microscopy sciences, gel-permeation chromatography/high-performance liquid chromatography, and viscometry. Our key ﬁnding in this study was that olive industry solid waste is a valuable source of cellulose powder and its derivatives. This is important, since our results show how lignocellulosic agricultural wastes could be utilized and converted into cellulose products with high value.

Cellulose Powder from Olive Industry Solid Waste

Wed, 2015-02-04 11:14 — Nisreen Alhaj

Journal Title, Volume, Page:

Bioresources; 7(3).

Year of Publication:

2012

Link:

http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_3_4190_Hamed_FHA...

Authors:

Nisreen Al-Hajj

Department of Chemistry, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Othman A. Hamed

Department of Chemistry, An-Najah National University, Nablus, Palestine

Yusra Foad

Department of Chemistry, An-Najah National University, Nablus, Palestine

Emad M. Hamed

Department of Chemistry, Hashemite University, Zarqa, Jordan

Preferred Abstract (Original):

In the present work, a method for extracting cellulose from olive industry solid waste has been developed. The method involves subjecting solid olive waste to kraft pulping, followed by multistep bleaching processes. The totally free chlorine chemical bleaching sequence APEP was the most effective and gave an average cellulose yield of about 35%. The extracted cellulose was extensively characterized using FTIR, EMS, HPLC, and viscometry. Our key finding in this study is that the extracted cellulose was found to have physio-chemical properties that are similar to those of conventional microcrystalline cellulose (MCC). This is important, as our results show how lignocellulosic agricultural wastes can be utilized to produce high value cellulose powder.

Cellulose Acetate from Biomass Waste of Olive Industry

Wed, 2015-02-04 11:06 — Nisreen Alhaj

Journal Title, Volume, Page:

Journal of Wood Science February, Volume 61, Issue 1, pp 45-52

Year of Publication:

2015

Link:

http://link.springer.com/article/10.1007%2Fs10086-014-1442-y

Authors:

Nisreen Al-Hajj

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Shehdeh Jodeh

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Othman A. Hamed

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Ahmed Abo-Obeid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Yusra Fouad

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Emad M. Hamed

Hashemite University, Zarqa, Jordan

Preferred Abstract (Original):

In the present work cellulose powder was extracted from olive industry solid waste and then converted into cellulose acetate. The cellulose powder was extracted from olive industry solid waste by kraft pulping process and multistep bleaching p sequences. An elemental chlorine-free chemical bleaching sequence chlorine dioxide (D)-cold caustic extraction (E)-hypochlorite (H)-hydrogen peroxide (P) was used. Cellulose powder was obtained in about 35 % yield. The extracted cellulose and cellulose acetate made from thereof were extensively characterized using Fourier transform infrared spectroscopy, electron microscopy sciences, gel-permeation chromatography/high-performance liquid chromatography, and viscometry. Our key finding in this study was that olive industry solid waste is a valuable source of cellulose powder and its derivatives. This is important, since our results show how lignocellulosic agricultural wastes could be utilized and converted into cellulose products with high value.

Cellulose Acetate From Biomass Waste of Olive Industry

Sun, 2015-02-01 13:19 — Shehdeh Jodeh

Journal Title, Volume, Page:

J Wood Sci DOI 10.1007/s10086-014-1442-y

Year of Publication:

2014

Authors:

Othman hamed

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Shehdeh Jodeh

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Nisreen Al Hajj

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Emad Hamed

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Ahmad abu obaid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Yusra Fouad

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

In the present work cellulose powder was extracted from olive industry solid waste and then converted into cellulose acetate. The cellulose powder was extracted from olive industry solid waste by kraft pulping process and multistep bleaching p sequences. An elemental chlorine-free chemical bleaching sequence chlorine dioxide (D)-cold caustic extraction (E)-hypochlorite (H)hydrogen peroxide (P) was used. Cellulose powder was obtained in about 35 % yield. The extracted cellulose and cellulose acetate made from thereof were extensively characterized using Fourier transform infrared spectroscopy, electron microscopy sciences, gel-permeation chromatography/high-performance liquid chromatography, and viscometry. Our key ﬁnding in this study was that olive industry solid waste is a valuable source of cellulose powder and its derivatives. This is important, since our results show how lignocellulosic agricultural wastes could be utilized and converted into cellulose products with high value.

Cellulose Powder From Olive Industry Solid Waste

Sun, 2012-12-16 15:32 — Othman A. Hamed

Journal Title, Volume, Page:

BioResources 7(3), 4190-4201. 4190

Year of Publication:

2012

Link:

http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_3_4190_Hamed_FHA...

Authors:

Othman A. Hamed

Department of Chemistry, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, An-Najah National University, Nablus, Palestine

[email protected]

Yusra Foad

Department of Chemistry, An-Najah National University, Nablus, Palestine

Emad M. Hamed

Department of Chemistry, Hashemite University, Zarqa, Jordan

Nisreen Al-Hajj

Department of Chemistry, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

In the present work, a method for extracting cellulose from olive industry solid waste has been developed. The method involves subjecting solid olive waste to kraft pulping, followed by multistep bleaching processes. The totally free chlorine chemical bleaching sequence APEP was the most effective and gave an average cellulose yield of about 35%. The extracted cellulose was extensively characterized using FTIR, EMS, HPLC, and viscometry. Our key finding in this study is that the extracted cellulose was found to have physio-chemical properties that are similar to those of conventional microcrystalline cellulose (MCC). This is important, as our results show how lignocellulosic agricultural wastes can be utilized to produce high value cellulose powder.