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What is AlcoGain?

A biocide for molassesbased yeast

fermentation for ethanol

(ethyl alcohol)

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Distillery

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Fermentation

Control Bacterial Contamination

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Sluggish Fermentation

poor quality of molasses?

high contaminant level in substrate? high by-product formation?

Then AlcoGain is a sure-shot solution to all yourfermentation problems!.

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Factors Affecting the Rate of

Fermentation

Inhibitors present in molasses.

Fermentable to non fermentable solids concentration

in raw molasses.

Bacterial contamination in fermented wash.

Sugar concentration in fermented wash

Ethanol concentration in fermented wash

Temperature of fermenters

Agitation in fermenters

Yeast strain

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Inhibitors Present in raw Molasses

Organic volatile acids

Caramel content in molasses Gums, resins and waxes

F/N ratio < 0.9

Bacterial contamination

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Major Sources of Bacterial

Contamination

molasses

air and water dead pockets

Lactobacillus, Leuconostoc& L. fermentum

Acetobactor > 500 different bacteria

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How do bacteria affect Fermentation

Efficiency?

Lactobacillus causes serious yeast flocculation problems

acid production

inhibits yeast metabolism

decreases alcoholic yield

L. fermentum yeast viability strongly reduced

sluggish alcoholic fermentation

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How do bacteria affect Fermentation

Efficiency? (contd.)

Leuconostocmesenteroides sensitive to alcohol

does not persist for long period

Acetobacter

Inhibits alcohol formation

Spoils alcohol quality

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Infection Control

only two methods exist:antibiotics

chlorine dioxide

chlorine dioxide:

cannot be used > 50 ppm

expensive

antibiotics:

highly effective

cheaper

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How AlcoGain Works

controls bacterial contamination

minimizes by-product formation faster conversion of sugars to alcohol

greater conversion of sugars to alcohol

increases rate of yeast metabolism healthy active yeast growth

increase in productivity and spirit quality

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General

Product Specifications Solid / Liquid form

Storage and Shelf Life 3-4 months in cool place

Dosage 8.5 kg (solid form) / 35 L per month per 30 KLPD distillery

May vary as per distillery performance parameters

Packing Available in 35 L jerry can or Powder form

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Economics

Depends upon Fermentation Efficiency (FE)

Lower the FE, better the result Max. increase observed 0.8 % (v/v) in wash

Cost per month = one days benefit (min.)

Benefits vary from plant to plant

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Safety

Handle with care

Only authorized personnel to handle Should not be tasted or smelled

Store in a safe place

Keep the can tightly closed

Keep in a cool place

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Thank You!

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