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Unravelling acid whey processing by understanding lactose crystallisation

16 August 2016 | By , ,

Nowadays acid whey typically refers to the ever expanding amounts of whey originating from Greek style yoghurt. However, not every acid whey is the same. As lactose crystallisation in acid whey is complex and affected by many factors, including the presence of lactic acid, minerals and proteins, it is more…

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Chocolate aeration – Art or science?

6 September 2011 | By Josélio Vieira, Principal Research Scientist, Nestlé Product Technology Centre and Venkata R. Sundara, Group Leader for Aerated and Filled Confectionery, Nestlé Product Technology Centre

Bubble inclusion into chocolate results in a foam in which the gas is dispersed in the continuous fat phase of mainly cocoa butter, which also contains sugar, cocoa and milk powder particles. Aeration allows chocolate products to have a low weight in relation to volume, thereby reducing the calories in…

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Extrusion of cereals

26 August 2010 | By Mian N. Riaz, Head of Extrusion Technology Program, Texas A&M University

The world cereal yield was 2,219 million tons in 2009, according to the United Nations Food and Agriculture Organisation1. Cereal grains are grown all over the world and provide more food energy than any other type of crop, they are therefore staple crops. Cereals can be consumed in their natural…

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The evolution of ice cream technology

3 May 2005 | By Sabina Burmester, Andrew Russell and Deryck Cebula, Ice Cream Global Technology Centre, Unilever R&D Colworth, U.K.

The process used for commercial ice cream manufacture has changed little in the past 75 years – since the first continuous scraped surface freezer was introduced in the 1930s. In recent years, however, several key technological developments have taken place in the way ice cream is manufactured and these are…