| dc.creator |
Msuya, N |
|
| dc.creator |
Katima, J.H.Y |
|
| dc.creator |
Minja, R. J. A |
|
| dc.creator |
Masanja, E |
|
| dc.creator |
Temu, A.K |
|
| dc.date |
2018-08-12T09:04:43Z |
|
| dc.date |
2018-08-12T09:04:43Z |
|
| dc.date |
2018 |
|
| dc.date.accessioned |
2021-05-07T07:52:51Z |
|
| dc.date.available |
2021-05-07T07:52:51Z |
|
| dc.identifier |
http://hdl.handle.net/20.500.11810/4747 |
|
| dc.identifier |
10.5923/j.chemistry.20180802.04 |
|
| dc.identifier.uri |
http://hdl.handle.net/20.500.11810/4747 |
|
| dc.description |
The effect of reaction temperature, time and pH on the maximum total sugar concentration during thermal-acid
hydrolysis of sisal boles juice was investigated. The Minitab software (V. 17) was used to design a 2n full factorial design for
sisal juice hydrolysis and analyse the effects of the variables on the response. Thermal-acid hydrolysis can be carried out at a
moderate temperature of 60°C with a concentrated hydrochloric acid at pH of one within a period of 30 minutes to achieve a
sugar yield of 39%. The breakdown of complex sugars to simple sugars of sisal bole juice is basically a function of acid
concentration in sugar solution. Lowering pH of the juice contributed to increase in hydrolysis rate. The use of ANOVA
analyses gave evidence that linear, 2- way interactions and 3-way interactions of all the variables: temperature (60-100°C),
time (30-60 min) and pH (1-5) significantly affected the sugar yield. This amount of sugar yield from sisal boles juice is
higher than the yield of 26% which has been reported. The hydrolysed juice was also subjected into fermentation for lactic
acid and results showed favourable LA yield was obtained with the recommended thermal-acid hydrolysis in this study. |
|
| dc.description |
The Tanzania Commission for Science and
Technology - COSTECH (Bioplastics Project-UDSM) and
DAAD (In-Country scholarship) for financial support. |
|
| dc.language |
en |
|
| dc.subject |
Thermal-acid hydrolysis, Sisal bole juice, Complex sugars breakdown, Lactic acid production |
|
| dc.title |
Thermal-Acid Hydrolysis of Sisal Boles Juice for Lactic Acid Production |
|
| dc.type |
Journal Article, Peer Reviewed |
|