| dc.creator |
Sunardi, Sunardi |
|
| dc.creator |
Kusumawati, Dyah Ayu |
|
| dc.creator |
Junaidi, Ahmad Budi |
|
| dc.date.accessioned |
2020-06-15T03:56:49Z |
|
| dc.date.available |
2020-06-15T03:56:49Z |
|
| dc.identifier |
http://eprints.ulm.ac.id/1141/1/Abstract_%2B_LoA.pdf |
|
| dc.identifier |
Sunardi, Sunardi and Kusumawati, Dyah Ayu and Junaidi, Ahmad Budi Isolation of Cellulose from Imperata Cylindrica and Their Use For Synthesis of Sodium Carboxymethyl Cellulose. Isolation of Cellulose from Imperata Cylindrica and Their Use For Synthesis of Sodium Carboxymethyl Cellulose. |
|
| dc.identifier.uri |
https://repo-dosen.ulm.ac.id//handle/123456789/9556 |
|
| dc.description |
Imperata cylindrica (L.) Beauv, commonly known as alang-alang (in Indonesia) is a
perennial grass which broadly distributed in South Kalimantan, Indonesia. This grass is a
noxious weed both in crops and natural areas, causing serious economic and environmental
damage. Exploitation and utilization of Imperata cylindrica could be a practical proposition
for the managing of this wild plant and also for novel low cost source of chemical feedstocks.
The objective of present study was to isolate cellulose from Imperata cylindrica and
synthesis of sodium carboxylmethyl cellulose (Na-CMC) from it. Na-CMC is cellulosederived
material which widely use in many industrial application, such as thickner, binder,
and stabilizers for food and pharmaceutics. The isolated cellulose from Imperata cylindrica
was converted to Na-CMC by alkalization and etherification method using different sodium
hydroxide (NaOH) concentrations (5% - 25%) and ratio of monochloroacetic acid (MCA) to
cellulose (0.6 - 1.4). The optimum condition for synthesis was found to be 15% NaOH and
the ratio of MCA to cellulose 0.80 which provided the highest solubility and degree of
substitution. The carboxymethylation process of cellulose was confirmed by Fourier
transform infrared spectroscopy (FTIR). In addition, changes in crystallinity of cellulose and
Na-CMC was evaluated by X-ray diffraction (XRD).
Keywords: alang-alang, Imperata cylindrica, carboxymethyl cellulose |
|
| dc.format |
text |
|
| dc.relation |
http://ic3pe.chemistry.uii.ac.id/ |
|
| dc.relation |
http://eprints.ulm.ac.id/1141/ |
|
| dc.subject |
QD Chemistry |
|
| dc.title |
Isolation of Cellulose from Imperata Cylindrica and Their Use For Synthesis of
Sodium Carboxymethyl Cellulose |
|
| dc.type |
Article |
|
| dc.type |
PeerReviewed |
|