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Authors
Info
B. Sowmiya and
S. Ramalingam*
Centre for
Biotechnology, Anna University, Chennai- 600 025, India
*Corresponding
Author Email :
ramabioprocess@annauniv.edu
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Abstract
Aim: The current study
aimed to evaluate the potential of milk whey medium to produce low value
bio-preservatives.
Methodology: Lactobacillus
plantarum NZ7100 was obtained from NIZO Food Research, Netherlands. To
analyze optimal biomass, desired product and precursor production under
whey/whey permeate supplemented with various yeast extract concentration (0,
5, 10, 15 and 20 g l-1) and other economical media, batch
fermentation was conducted and metabolites were analyzed using HPLC.
Results: The study showed
that whey permeate containing 15 g l-1 yeast extract supported
maximum biomass formation of 1.7 g l-1 with significant production of total
lactic acid and D-lactic acid of about 9.78 g l-1? and 4.41 g l-1.
The kinetic parameters evaluated with commercial growth medium such as
MRS-glucose and MRS-lactose demonstrated relatively lesser growth and lactate
yield in whey permeate medium than in MRS medium.?
Interpretation: The study
demonstrated the prospective of utilizing whey permeate medium to co-produce
effective, eco- friendly, low cost natural preservatives using L.
plantarum for usage in food and feed industry.
Key words: Growth kinetics, Lactic acid, Lactobacillus plantarum,
Whey permeate, Yeast extract
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conclusions enforced or derived, rest completely with the author(s).
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