alpha for organic acid

Company presentation

2013

INTRODUCTION

• Citric acid– Citric acid is a week organic acid found in citrus fruits

– Molecular formula is C6H8O7 and belongs to the carboxylic acids groups

– Stronger acid compared to other typical carboxylic acid .Produced by fermentation and suitable pH is around 3-6

• Application In Industry– Beverages

– Food

– Pharmaceutical

– Agriculture

– Metal Industry Structural Formula of Citric Acid

SOURCE OF RAW MATERIALS

Beet Molasses• the source of sugar for microbial

production of citric acid

• low cost and high sugar content

• low content of trace metals

• acts as carbon source of the fermentation

Microorganism• mycomycetes of A.niger species

can produce high yield

• consequence of incomplete respiration

Aspergillus Niger• filamentous ascomycete fungus

• maintained at pH 4.5 and temperature at 5 °C

• The best strain for citric acid production

• Scientific classification of A.niger

Domain Eucaryotes

Kingdom Fungi

Phylum Ascomycota

Subphylum Pezizomycotina

Class Eurotiomycetes

Order Eurotiales

Family Trichocomaceae

Genus Aspergillus

Species A.Niger

DEMAND AND SUPPLY

• The high demand in citric acid is the wide usage as acidulent in food and beverage industry.

• In the 1980s, U.S.A has been the leading country in producing citric acid. But, in the year of 1995, the Chinese production volume of citric acid has surpasses that of United States (Connor 2008) due to the lower cost of raw materials and the lower price of citric acid.

• In the year of 2007, worldwide annual production was approximately 1.7 million metric tons. According to Carlos (2006), the production rate of citric acid has growth of 3.5 to 4.0% per year.

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Global Citric Acid Demand and Supply Graph

Demand

Production

Egypt market

• The Egyptian market need 26000 tons in 2011

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2008 2009 2010 2011

Citric acid

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PROCESS DESCRIPTION

1. preparation of molasses

2. Fermentation of Citric Acid

3. Biomass Removal

4. Liquid-liquid extraction

5. Crystallization

6. Packing

preparation of molasses

• The molasses diluted in a solution

• The molasses solution sterilized

• For this proses the Heat Sterilizer will be used

preparation of molasses

preparation of molasses

Fermentation of Citric Acid

• the Aspergillus Niger inject to the fermentorwith molasses sol.

• The fermentation time take 166 hours

Fermentation of Citric Acid

Fermentation of Citric Acid

Fermentation of Citric Acid

Fermentation of Citric Acid

Fermentation of Citric Acid

Fermentation of Citric Acid

Biomass Removal

• The biomass removed by using rotary dram vacuum filter

Biomass Removal

Liquid-liquid extraction

• The extraction proses using precipitation and dissolving technic

• First precipitation of calcium citrate

• Second dissolving of calcium citrate to produce citric acid

• The precipitation and dissolving Blending Tank are used in this proses

Liquid-liquid extraction

Liquid-liquid extraction

Crystallization

• The liquid citric acid will converting to crystal to forming the end product

• The spray dryer machine are used in this proses

Crystallization

Packing

• The end product packing in 25 kg or 50 kg craft bag

Packing

The end