Biosynthesis of β-lactam antibiotics


Citation

Abraham, E. P. (1982) Biosynthesis of β-lactam antibiotics. [Proceedings Paper]

Abstract

The industrial utilization of cassava roots is increasing year by year. The world production list shows that Thailand is one of the biggest producers of cassava. The average composition of the cassava root is comparable with that of the potato, from which alcohol is obtained for fuel purposes by a well known technology. A flow diagram for a modern medium to large size cassava process factory describes the method by which power alcohol is obtained. For starch hydrolysis a two-stage enzymatic conversion is described where the first stage takes place under acid conditions with alpha-amylase while saccharification is completed by using the amyloglucosidase-enzyme. For the sub- sequent fermentation a new process is outlined: it works with two different kinds of fermenters in a two-step alcohol fermentation process with recirculation of yeast in one fermenter and the production of yeast in another, Both fermentations are carried out continuously and under optimal operational conditions The distillation of the alcohol is carried out by means of an energy saving process using thermo compression. The energy requirements of the whole process are given above as well as the byproducts that are obtained. The new improved method for producing power-alcohol from cassava might eventually help to replace gasoline.


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Abstract

The industrial utilization of cassava roots is increasing year by year. The world production list shows that Thailand is one of the biggest producers of cassava. The average composition of the cassava root is comparable with that of the potato, from which alcohol is obtained for fuel purposes by a well known technology. A flow diagram for a modern medium to large size cassava process factory describes the method by which power alcohol is obtained. For starch hydrolysis a two-stage enzymatic conversion is described where the first stage takes place under acid conditions with alpha-amylase while saccharification is completed by using the amyloglucosidase-enzyme. For the sub- sequent fermentation a new process is outlined: it works with two different kinds of fermenters in a two-step alcohol fermentation process with recirculation of yeast in one fermenter and the production of yeast in another, Both fermentations are carried out continuously and under optimal operational conditions The distillation of the alcohol is carried out by means of an energy saving process using thermo compression. The energy requirements of the whole process are given above as well as the byproducts that are obtained. The new improved method for producing power-alcohol from cassava might eventually help to replace gasoline.

Additional Metadata

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Item Type: Proceedings Paper
Additional Information: Available at Perpustakaan Sultan Abdul Samad, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia TP501 A816 1982 Call number.
AGROVOC Term: biosynthesis
AGROVOC Term: metabolites
AGROVOC Term: fermentation
AGROVOC Term: genetic engineering
AGROVOC Term: microorganisms
AGROVOC Term: fermenters
AGROVOC Term: enzymes
AGROVOC Term: purity
AGROVOC Term: pharmaceutical industry
Geographical Term: United Kingdom
Uncontrolled Keywords: Antibiotics
Depositing User: Ms. Azariah Hashim
Date Deposited: 18 Oct 2024 03:29
Last Modified: 18 Oct 2024 03:29
URI: http://webagris.upm.edu.my/id/eprint/770

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