There's still no cure for the common cold, but new study suggests zinc may help shorten the duration. 26.2.2011
The notion that zinc might be effective against the common cold is not new. In an effort to assess the real effect of zinc on common cold symptoms, the Cochrane Collaboration carried out a systematic review of 15 randomized controlled zinc trials, with over 1,300 participants of all age groups. The review, which was released February 17, 2011, concluded that zinc administered within 24 hours of onset of symptoms can cut colds short by an average of a day or more and sharply reduce the severity of symptoms.

The authors stopped short of making a general recommendation for zinc in treatment of the common cold suggesting more research is needed. Even so, the new report gives credence to the long-debated theory that zinc can be an effective treatment for colds. While it’s not certain how zinc curbs colds, it appears to have antiviral properties that prevent the cold virus from replicating or attaching to nasal membranes.

The study results have generated headlines in major media outlets around the world. This renewed interest in zinc is understandable given that the common cold places a heavy burden on society, accounting for approximately 40% of time taken off work and millions of days of school missed by children each year. Americans alone spend $2.9 billion on over-the-counter drugs and another $400 million on medicines for symptomatic relief. So while there is still no proven treatment for the common cold, even if zinc is only partially effective it could markedly reduce economic losses due to this illness. However, anyone wanting to try zinc should stick to recommended daily allowances, which are specified as maximum doses on supplement preparations.

Experts say zinc prices will slide further. Posted: Tuesday, 02 Sep 2008, LONDON (Reuters) 23.9.2008
With sliding zinc prices taking their toll on miners, Experts say zinc prices will slide further. The industry has seen mine closures and output cuts as energy, labor and equipment costs rise while zinc prices drop.
And the pain will continue. The question is whether demand and global oversupply will keep prices falling into 2010, or whether the market will turn around next year.
“We would need very, very significant production losses to bring the market back to balance” in 2009, said Giles Lioyd of industry consultants CRU Group.
A Reuter’s poll in July found that cash zinc prices are forecast to average $2,133 a tone in 2008 and fall to $2,000 in 2009.

"Jam Industrial Group" has achieved the standard certificates of HACCP and ISO 22000:2005 for its "Feed Grade Zinc Oxide" product. 23.8.2008
"Jam Industrial Group" has achieved the standard certificates of HACCP and ISO 22000:2005 for its "Feed Grade Zinc Oxide" product.

The "Grinding Plant" of "Jam Industrial Group" has been established in its zinc smelting company in Gazvin. 23.8.2008
The "Grinding Plant" of "Jam Industrial Group" has been established in its zinc smelting company in Gazvin.

- Jam Industrial Group's Zinc Ingot plant which is located in Ghazvin/Iran with the capacity of 10.000 tons of Zinc Ingot per year starting from January of 2007. 24.1.2007

- Zinc metal demand set to increase by 2.6 pct in 2007 14.1.2007
Zinc prices have fallen from the peak of $4,600 per ton seen last month on the London Metal Exchange (LME). In the cash market, prices are in the range of $4,000 per ton.

Concerns over US manufacturing demand triggered a correction in copper, zinc and tin. This is in contrast to the steady rise in zinc prices over the past two years. Zinc prices rose 231% in the past two years.

While in the short term, there are demand concerns from the US, the International Lead and Zinc Study Group (ILZSG) expects demand to rise by 2.6% to 11.35 million tons in 2007. Chinese demand, which constitutes 30% of global demand for zinc, may rise even more by 6.9% in 2007.

During January-October 2006, world demand grew 3.7% to 9.1 mt. Asia constitutes around half of the total demand for zinc. China has been a major importer of zinc since 2004.

According to ILZSG, global demand for refined zinc metal is set to increase by 3.9% to 11.06 mt in 2006 and by 2.6% to 11.35 mt in 2007. Chinese demand is forecast to rise by 4.7% in 2006 and 6.9% in ’07. In 2007, China will roughly constitute 30% of the overall zinc metal usage, US 10%, Japan 5% and others 55%. Demand for zinc had fallen 10.6% in the US in 2005.

For January-September 2006, demand was up 6.2% at 1.66 mt. A similar trend is likely in Europe, which saw a 5% fall in demand in 2005. During January-September 2006, demand rose 5.1% over the previous year. Zinc is mainly used for galvanizing steel.

Galvanizing constitutes 47% of zinc usage, while brass and bronze comprise another 19% and zinc alloys 14%. Zinc is used in protecting steel against corrosion by galvanizing.

Galvanized steel is used in industrial, commercial and residential construction. The fortunes of the zinc industry are linked to demand for galvanized steel. Zinc is also used in die-cast applications like household appliances, precision arts for cars, computers and communications equipment.

Source: Economic Times


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