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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
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Research Journals >
Indian Journal of Biotechnology (IJBT) >
IJBT Vol.02 [2003] >
IJBT Vol.02(2) [April 2003] >
| Title: | Apple Pomace Utilization for the Production of Baker's Yeast: Effect of Substrate Concentrations and Growth Stimulators |
| Authors: | Joshi, V K
Bhushan, Shashi |
| Keywords: | Apple pomace
Molasses
Jaggery
Baker's yeast |
| Issue Date: | Apr-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Apple
pomace powder showed higher percentage of fermentable sugar (to that of total),
titratable acidity and
higher
crude protein than molasses and jaggery. The composition of the
extracted/diluted medium was in consistence
with
the original substrates. Among the different total sugar concentrations tried
(5, 10 & 15%),5% was optimum
for
higher yeast biomass production. Comparing glucose with apple pomace extract
(APE), molasses and jaggery,
glucose
gave higher fermentation efficiency followed by APE, which was found superior
with respect to higher
cellular
yield coefficient and lower ethanol production. Addition of growth stimulators
(vitamins & minerals)
increased
efficiency of baker's yeast in both ways i.e. to respire or to ferment the
available sugar. The different
carbon
sources behaved similarly with respect to the addition of growth stimulators
(minerals, vitamins and their
combinations)
except APE medium, which exhibited a non-significant effect. Supplementing the
APE medium with
such growth stimulators thus, is not required to
produce baker's yeast. |
| Page(s): | 220-226 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Source: | IJBT Vol.02(2) [April 2003]
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