Presentation On Manufacturing of Sugar from Sugarcane

Submitted To Submitted By

Mr. Lokesh chandra Ashwani Gupta (Sr. Lecturer) Roll no. 0706851008

Chemical Formula & Structure

Properties of Sugar

Mol. wt. - 342 M.P. - 186°C (decomposition)Density - 1.58 gm/ccSolubility - very soluble in water , slightly soluble in

methyl & ethyl alcohol.

Raw Materials

SugarcaneWaterLimeCalcium phosphateSO2 gas

By products from sugar mill

SugarcaneSugarcane is a perennial herb belonging to the grass family.

Native to tropical and subtropical regions of the world, this tropical grass is 6-19-feet tall, bears long pointed leaves and has several stalks. The segmented stalks have a bud at each joint and as the plant matures, small flowers appear.

India is second largest producer of sugarcane (report in 2008) about 348,187,900 tones .

There are six to thirty seven species of sugarcane.

Sugar cane contains 70% water; 14% fiber; 13.3% saccharose (about10 to 15% sucrose), and 2.7% soluble impurities.

Weighing and Sampling

It is to determined the weight of sugarcane & quality of sugarcane

Wt. of sugarcane = wt. of loaded lorries – wt. of unloaded lorries

In sampling : it is tested to measure the sugar content and to determine the amount of soil, tops or leaves present in the load

Steps Involve in Manufacturing of Sugar

Planting & Collecting the HarvestCleansing & GrindingJuicing ClarifyingTestingEvaporation CrystallizationRefiningSeparation and Packaging

Flow Sheet of Process

The Refining Process

Affination - dissolving off some surface impurities

Carbonation - removing further impurities that precipitate from solution with calcium carbonate

Char filtration - removing further impurities with activated carbon

Crystallization - using a vacuum process

Types of Sugar

Processed sugar comes in two forms:

1.Non-crystalline sugar

Syrups: A non-crystalline liquid of high viscosity (thickness) concentrated from whole cane juice and contains up to 50% sucrose.

2.Crystalline sugars:

Non-centrifugal sugars contain up to 80% sucrose. Centrifugal sugars contain up to 94 to98% sucrose.

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