Process for the fermentative production of lactic acid from a plant extract the presence of a caustic magnesium salt
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United States of America Patent
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Jun 27, 2017
Grant Date -
Apr 30, 2015
app pub date -
Dec 14, 2012
filing date -
Dec 16, 2011
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Abstract
A method is described for producing lactate or lactic acid from a plant extract, such as oil palm frond extract, via fermentation. In particular, the method includes providing a fermentation medium that includes at least 25 wt. % of a plant extract containing fermentable carbohydrates, fermenting the fermentation medium by means of a lactic acid producing microorganism in the presence of a caustic magnesium salt to provide a fermentation broth containing at the most 9.5 wt. % magnesium lactate at the end of fermentation, the magnesium lactate being in soluble form during and at the end of fermentation; and recovering lactate or lactic acid from the magnesium lactate containing fermentation broth.
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