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Starch Hydrolysate, an Optimal and Economical Source of Carbon for the Secretion of Citric Acid by Yarrowia lipolytica (DS‐1)
Author(s) -
Shah Deepeak N.,
Chattoo Bharat B.,
Kothari Raman M.,
Hegde Mahabaleshwar V.
Publication year - 1993
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19930450308
Subject(s) - hydrolysate , sucrose , citric acid , fructose , sugar , chemistry , starch , food science , biochemistry , hydrolysis
Using Yarrowia lipolytica (DS‐1), secretion of citric acid is studied as a function of carbon sources such as glucose, fructose, hydrol, sucrose, cane sugar molasses, kerosene (all available commercially) and tapioca starch hydrolysate, invert sucrose and invert cane sugar molasses (all prepared in laboratory). On the basis of their acceptability by DS‐1 for citric and isocitric acid secretion, it is concluded that (a) sucrose and cane sugar molasses (with/without inversion) served as poor carbon sources, (b) fructose, hydrol, impure tapioca starch hydrolysate (96 DE w/w) and invert sucrose served as relatively better carbon sources and (c) purified tapioca starch hydrolysate (96 DE w/w) was the best carbon source to substitute glucose by giving comparable (75%) efficiency of conversion and economical advantage.