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Benefit risk assessment of microbial food cultures

6 November 2012 | By François Bourdichon, Nestlé Research Centre; Joerg Seifert, International Dairy Federation and Egon Bech Hansen, Technical University of Denmark

Fermentation as a chemical process was initially described in the mid-19th century by Louis Pasteur as ‘a vie sans l’air’, the metabolic process of deriving energy from organic compounds without the involvement of an exogenous oxidising agent. Fermentation, as a process for manufacturing fermented foods, is today used more broadly…

Application of vacuum in the food industry

6 November 2012 | By Frank Moerman, European Hygienic Engineering & Design Group and Nico Desanghere, Sterling Fluid Systems

Vacuum allows processes to be performed that cannot otherwise be done under atmospheric conditions. Moreover, it offers a huge advantage in the processing of heat and oxygen sensitive materials. There are numerous applications in the food industry that rely on vacuum. The vacuum required in the food industry extends in…

Imaging lipids in native specimen with TCS SP8 CARS – CARS at video rate

17 September 2012 | By

Sophisticated food studies rely mainly on chemical techniques which reveal only a few and often isolated aspects of a sample. As the focus of food science concentrates more on a whole system, like dynamics of lipid components or water in various types of food, more detailed information of these structures…

Unravelling chocolate aroma

6 September 2012 | By Angela Ryan and Alison Hemesley, Nestlé Product Technology Centre

It’s been almost 500 years since Aztec Emperor Moctezuma reputedly introduced Hernando Cortéz to his favourite cocoa-based beverage Xocolatl, but our demand for cocoa and more recently chocolate has continued to grow ever since. Today, world cocoa production is estimated to be 3990 million metric tons and the major cocoa…

Packaged chillers with ammonia as a refrigerant: the natural choice

6 September 2012 | By René van Gerwen, Global Lead Engineer Refrigeration & HVAC, Unilever Engineering Services

Industrial chillers for the supply of chilled water, cold glycol or brine, are frequently used over a long time, and have become even more attractive for several applications to replace direct refrigeration systems. Greenhouse gas footprint and lifecycle costs of ownership of industrial chillers can be significantly reduced by using…

Innovative freezing technologies for foods

6 September 2012 | By Stephen J. James & Christian James, Food Refrigeration and Process Engineering Research Centre, Grimsby Institute of Further and Higher Education

Freezing is a well-established food preservation process that produces high quality nutritious foods that offer the advantage of a long storage life. However, freezing is not suitable for all foods and freezing does cause physical and chemical changes in many foods that are perceived as reducing the quality of the…

Practical examples of innovative NMR approaches to food analysis

6 September 2012 | By Luisa Mannina, Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma & Laboratorio di Risonanza Magnetica Annalaura Segre, Istituto di Metodologie Chimiche, CNR and Anatoly P. Sobolev Laboratorio di Risonanza Magnetica Annalaura Segre, Istituto di Metodologie Chimiche, CNR

NMR spectroscopy is currently one of the key methods for food characterisation1. Foodstuff is a complex matrix including many different compounds with different chemical structures, concentrations, solubility, properties and nutritional values. Each food type contains primary and secondary metabolites. Primary metabolites, i.e. organic acids, amino acids and sugars, involved in…

New thoughts on a time-tested technology: milk pasteurisation

5 September 2012 | By Daina Ringus and Kathryn Boor, College of Agriculture and Life Sciences, Food Science Department, Cornell University

The commercial adoption of milk pasteurisation was a major boon for urban public health in the first half of the 20th century. Before the widespread use of pasteurisation, the proliferation of diseases such as bovine tuberculosis and brucellosis among humans was frequently linked with consumption of unpasteurised (raw) milk15. Pasteurisation…

Hygienic design of pumps: an EHEDG perspective

5 September 2012 | By Maxime Chevalier, EHEDG Member

Historically, maintaining the hygiene of a food process required a complete or partial disassembly and manual cleaning of every component (Cleaning out of Place: COP). The 1950’s saw the development of a method to clean the equipment without dismantling (Cleaning in Place: CIP) with the benefit of better repeatability, reduced…

The science behind the flat wafer baking process

5 September 2012 | By Venkata R. Sundara, Group Leader for Aerated and Filled Confectionery, Nestlé Product Technology Centre

Wafers offer a unique sensorial experience to consumers. Driven by consumer trends towards products which are lighter but still indulgent, the wafer category is expected to grow further. Wafers are seldom eaten alone and are often combined with components with a contrasting texture, such as chocolate or ice cream. Wafers…

A perspective on labelling and consumer understanding

5 September 2012 | By Grethe Humbert, Dominique Taeymans, Gupta Himanshu and Philippe Pittet, Nestlé

This article presents a perspective on food additives, how consumers understand them and their labelling. It also highlights the evolution of consumer information obligations and expectations in the light of new EU Regulations. There are likely to be many reasons why con - sumers consult food labels and the reasons…

EU FP7 Veg-i-Trade investigates pre and post-harvest practices influencing microbial quality and safety of leafy greens

5 September 2012 | By Maria I. Gil, Ana Allende and Maria V. Selma, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC and Mieke Uyttendaele, Laboratory of Food Microbiology and Food Preservation, Ghent University

Fresh leafy vegetables (e.g. lettuce, spinach, escarole, cabbage and other baby leaves used in salad mixes) are an important part of a healthy diet. Global consumption levels are expected to increase in the future. However, due to recent disease outbreaks and rapid alerts attributed to fresh produce, concerns have emerged…

In a nutshell: Beatrice Marg-Haufe, Tecan

5 September 2012 | By Helen Bahia, Editor, New Food

Beatrice Marg-Haufe, Market Manager Veterinary & Food at Tecan, discusses the advantages of liquid handling automation and the importance of correct sample preparation.

Food Grade Lubricants Supplement 2012

5 September 2012 | By Andre Adam, Pete Martin

H1 food lubricants in the industry (Andre Adam, H1 Global Food Lubricants Workgroup Chair, ELGI3)The new Food Information Regulation – what impact will it have on your business? (Pete Martin, Head of Trading Law (EMEA) NSF International)