HYFOMA (European Network for the Manufacture of Hygenic Food) maintains a site which aims to centralise and coordinate literature from food equipment manufacturers.
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The website is funded by food equipment manufactures and states that it intends to capture all available information but seems to be still in the process.
Articles range from full reviews eg Ohmic & Induction Heating for Microbial Inactivation to pretty simple outlines. Articles are basically focussed on products or technologies.
Although this site is still building and you may find articles that are notyet available or only in a foreign language, its still worth a look as its such a large source of free information.