International Sugar Journal
The Blackboard

Analytical work: Precision, accuracy, calibration [Full subscriber]

The final aim of a chemical analysis is to obtain one or more numerical results. Between the recording of measured values and the reporting of numerical results, there are arithmetic […]

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The Blackboard

Gums [Full subscriber]

Three early Blackboards dealt with the ability of sucrose to crystallise, crystal size measurements and the effect of trisaccharides on the sucrose crystal shape. There are other organic compounds which […]

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The Blackboard

Levers are out, touchscreens are in: How the interface design of BMA’s centrifugals has evolved [Full subscriber]

In the last 150 years, BMA has developed and launched a range of different centrifugal types. With each new model, we have drawn on research and experiences gained in the […]

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The Blackboard

Beet and cane [Full subscriber]

In 1977 Inman-Bamber noted that there was an interest in South Africa for growing sugar beet. Planting trials were conducted. Various diseases such as leaf spot, root rot and root […]

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The Blackboard

How does sugarcane make sucrose? [Full subscriber]

Photosynthesis is a complex process by which carbon dioxide, water and inorganic salts are converted into carbohydrates by green plants, using chlorophyll and energy from the sun. Generally these carbohydrates are stored […]

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The Blackboard

Estimating sucrose losses in evaporator stations [Full subscriber]

An early Blackboard article dealt with inversion in general. It noted that details of its fundamental chemistry were published in the mid-’60s by Honig and Vukov.  New developments concerning sampling […]

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The Blackboard

LLT Clarifier [Full subscriber]

Turbulent eddies can be created as juice flows in clarifiers such as the Dorr and Graver. Usually the feed travels horizontally outwards and vertically upwards. Horizontal flows reduce efficiency and […]

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The Blackboard

Sugar beet: Planting, harvesting and cleaning [Full subscriber]

Once a new sugar beet variety has been developed, seed production begins. The seed is multiplied where the climate and soil guarantee the optimum quality. The agronomic advantage of the […]

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The Blackboard

Can you hear the beet?  [Full subscriber]

Today about three-quarters of the world’s sugar is supplied from cane which is grown in tropical and sub-tropical regions; one-quarter is supplied from beet grown in more temperate climates. The […]

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The Blackboard

Laboratory chemicals  [Full subscriber]

Horne’s dry lead, consisting of a mixture of 4 parts Pb(C2H3O2)2.PbO and 3 parts Pb(C2H3O2)2.2PbO, was known in 1904. In 1942 Bates noted that basic lead acetate was the most […]

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