International Sugar Journal

Monthly Snapshot September [Full subscriber]

Market Overview Raw sugar futures in New York ended with further losses and touched a fresh seven-year low at 10.13 cents/lb on August 24 as weak sentiment across commodities, good […]

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Monthly Snapshot August [Full subscriber]

Market Overview Sugar futures prices fell sharply on 17th July. ICE October Raws closed below 12¢. A stronger US dollar and weaker Brazilian Real again helped set the direction. The […]

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Diversification and competitivity amidst volatility

I well remember when I took over the editorship of the journal some 14 years ago, the global price of sugar was hovering at around 6 cents/lb, and Brazil was […]

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The Blackboard

Sugarcane breeding: Early history [Registered]

The industry does not “make” sugar: it extracts it from sugarcane; the wellbeing and quality of this plant are therefore critical for commercial ventures to survive. If the climate and […]

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Monthly Snapshot July [Registered]

Market Overview Sugar futures resumed downward trend driven by improving crop outlooks in key producing countries as well as fund selling. On 23rd June, much of the day’s trading saw […]

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Embracing sustainability for profitability and humanity

“Words, words, words” Hamlet1 replies in response to Polonius’ question as to what is he reading. As the conference on Sustainable Sugar Forum2 proceeded on the morning of 16th June […]

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The Blackboard

The use of lead salts in the laboratory [Registered]

Browne & Zerban (1948) quote Scheibler who in 1875 investigated a “double dilution” method to reduce the error caused by the lead precipitate in saccharimetry; Pellet & Sachs in 1880 […]

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Good time to be driven to mechanize

About a month ago, a story from Vietnam hit the newswires1. A cane grower in Vietnam from the Central Highlands province of Gia Lai imported a cane harvester from the […]

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Monthly Snapshot June [Full subscriber]

Market Overview Failing a massive supply shock, probably caused by the vagaries of inclement weather globally, it is safe to say, that bearish pressure on sugar price will remain. As […]

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The Blackboard

Entrainment – Sampling & Analysis [Full subscriber]

Sampling condensed vapours and condenser waters is never easy. Beale (1959, 1962) and Claire (1965, 1967) mention practical difficulties encountered. Vapour sampling involves iso-kinetic (constant velocity) principles which require sophisticated equipment to obtain representative condensed vapour samples. Most workers have sampled condensates and condenser waters, using simplified sampling equipment. One of the problems associated with condenser waters is that the inlet water usually contains sugar. The large volumes of water and low concentrations of sugar can cause serious errors. A simple calculation illustrates the difficulty; we assume that the condenser inlet and outlet waters contain 70ppm of sugar, that 1 ton of vapour requires 30 tons of inlet water, and that the analytical precision is ±1ppm.

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