Category Archives: Food Processing Information

Food Studies Journal – Free Online Information

This Journal is worth signing up to and watching. While it does not appear to be large and also covers a wide range of topics it is already a source of useful information.

click image to visit the site

ISEKI_Food Association, is an international peer-reviewed open-access journal featuring scientific articles on the world of Food in Education, Research and Industry. This journal is a forum created specifically to “improve the dissemination of Food Science and Technology knowledge between Education, Research and Industry stakeholders.” Core topics range from raw materials, through food processing, including its effect on the environment, to food safety, nutrition and consumer acceptance. To enrich this forum the journal is also open to other food-related topics such as food policy and food anthropology.

 

Enzymes in Food Processing – Free online information

The International Union of Food Science and Technology (IUFoST) publishes high quality Scientific Information Bulletin on various topics in Food Processing.

click on image to read bulletin

This 10 page bulletin published In March 2010, covers the range of enzymes and their application in Food Processing. It covers new production technologies and the more novel processes in greater detail and outlines the needs of the industry. It concludes with a detailed list of references and some suggestions for further reading.

Equipment Suppliers Information For Small Scale African Food Processors

In the recent posts on Indian and an American Food Processing Enterprise Manuals it struck me that an important part of their value was the lists of potential equipment suppliers.

Closeup of screw conveyor

One of the well known directories is “Small-Scale Food Processing: A Directory of Equipment and Methods”. WHile it still provides very useful information on methods, it is rather focused on Indian and British suppliers and was last updated ten years ago.

This illustrates the difficulty of directories – it is expensive to collect complete information for all user’s particular needs and to keep them up to date.

Probably the best way to solve this problem is through a crowd sourcing approach using social media, but I think this is for a bit later.

For now I am going to send the following email to equipment suppliers I know and find.

I am planning to write a report on potential suppliers of processing equipment to small scale food processors in Africa.

I am aware that your company operates in this area and would like to ask if you can add any information to that on your website. In particular information on what you have supplied to enterprises especially in Africa along with some information on the progress of the enterprises would be great. Your thoughts on this sector and any advice you might have would also be interesting. As would information on how your support remote enterprises with assistance and spare parts.

I realise thats a big request and maybe its better if you supply anything particular you think would be useful in such a story.

This is not advertising and doesn’t depend on the responses I get to this query. I will in any event be using information from websites and providing contact details for companies, I already know and which I can identify. This stems from the hundreds of times I have been asked “where can I get equipment” and the many lists of constraints that feature a lack of equipment near the top. I will publish it on my website www.digivu.co.za, Food Processing Africa and other similar publications and websites. I will also, depending on what I am able to collect, implement some kind of managed directory focussed on African users.

I will of course let you know when and where the article is published and would like to thank you for whatever information you are able to supply.

I will then publish the results providing contact details of potential equipment suppliers to small scale processors in Africa. If I have a sufficiently positive response I will develop and maintain a directory.

But to be worthwhile we will need inputs from all those with appropriate information. So please respond with your suggestions for inclusion, forward this post to others who won’t see it or email me contact details and I will approach potential suppliers directly.

Tomato Cultivation and Processing – Free Online Technical Manual

Another document available for free from The ACP-EU Technical Centre for Agricultural and Rural Cooperation (CTA) through Anancy.

 

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from: Anancy
(click image for full story online)

 

This uninspiring cover hides the value of the information and misleads on it breadth – it covers processing and business issues in 16 pages of concise and clear information.

The information covers post harvest handling, quality, hygiene, drying, heat treatment, concentration, pulping and pasting. It includes a very interesting process for the large scale production of paste using muslin bag filtration.

 

What Should I be Publishing?

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Here is your opportunity to tell me what you would like me to be publishing here! Please email me here – dave@digivu.co.za or simply make a comment at the end of the post. Everyone who makes an input can supply me with information, which will be posted on www.digivu.co.za – what about using this as an advert?

You will have noticed I’ve been posting a bit more of non food processing bits and a bit slower in the last while – but remember you can access the information in many ways.

1) Remember though you can look at particular types of posts by going down to the bottom left and clicking a category, or even by entering an expanded URL.

eg food processing – http://www.digivu.co.za/category/food-processing/
African Businesses – http://www.digivu.co.za/category/african-foodbiz/
waste – http://www.digivu.co.za/category/waste/
biofuels – http://www.digivu.co.za/category/biofuels/

2) You can search the site/blog from the the “Search Just The Blog” google search box.

3) Scan bookmarks I make to interesting articles under “STORIES NOT POSTED” to the left or in more detail from News buttons in the top menu.

4) You can email for free assistance – see “Free Q&A Service” in the top menu.

5) You can also watch other of my channels like Facebook & twitter although I need more feedback on whether these are at all useful.

BUT PLEASE LET ME KNOW WHAT YOU WOULD REALLY FIND USEFUL!

 

Food & Process Engineering Technology – Free Online Information

I, as a chemical engineer, am really excited to find a book like this on line and easily usable.

The book is on SCRIBD which has been called the youtube of documents. Although posters on SCRIBD can make their posts downloadable this one does not, so you can only stream it.

The clip below tries, but fails, to show the blend between quantitativeness and practicality.

 

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from: SCRIBD
(click image for full story online)

 

Rather, if you are interested in Food Processing and brining comprehensive calculation into it go and see the book.

The Chapters are titled.

    • Problem Solving Tools: Dimensions and Units, Algebraic Equations, Graphs and Coordinate Systems
    • Mass and Energy Balances: Conservation of Mass, Conservation of Energy
    • Physical Properties of Food and Biological Materials
    • Textural Properties of Food and Biological Materials
    • Fluid Flow: Fluid Characteristics, Fluid Statics, Fluid Energy Balance (Bernoulli Equation), Fluid Friction Loss, Pumps and Fans, Non-newtonian Fluids
    • Heat Transfer: Conduction, Convection, Radiation, Heat Exchangers, Thermal Properties
    • Thermal Processing
    • Psychrometrics
    • Drying and Dehydration: Equilibrium Moisture Concepts, Drying Theory and Models, Drying Applications
    • Refrigeration: Equipment sizing, Refrigeration load, cooling time
    • Biological Product Preservation: Deteriorative Mechanisms, Storage Fundamentals, Thermal Sterilization and Preservation

I am not sure how this book is able to appear online, but since its there why not have a look! Either click the clip above to open in your browser or click below to stream here.

food_process_engineering_book food_process_engineering_book Vedpal Yadav

 

Free Online Information – Echonet Solar Dryer

I believe now is an appropriate time to focus on drying and solar energy. Drying is the simplest and one of the most effective methods of preserving food, allowing it to be stored without cost and equipment. The energy of the sun is free to anyone able to use it effectively. In the current situation where energy and food are both expensive and likely to continue increasing for some years the sun and solar drying of food is a very useful technology.

Although we will cover some of the basics over the next while, I want, in this post, to illustrate how simple it is to dry. I use a document distributed by Echonet to illustrate what can be done with little effort and little cost.

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from: ECHONET
(click image for full story online)

 

This pdf document is an extremely useful and practical manual for the solar drying of foods. It presents a simple drawing and describes a method of construction based on specified materials. As is obvious from the photograph below, this is not a flash and expensive piece of equipment from industry, but rather a device anyone with a little mechanical aptitude could construct and even redesign to make use of other materials which might be locally available.

http___echotech.org_mambo_images_DocMan_Solar%20Dehydrator07.pdf-2.jpg

from: ECHONET
(click image for full story online)

 

As well as information on how to build the dryer the manual contains detailed information, originally from the University of Georgia, on drying and how to dry. The information covers the basics including hygiene, pretreatment, determining dryness and conditioning but also provides fruit by fruit and vegetable by vegetable information on preparation, drying conditions, storage and even how to reconstitute.

I am continuing to try and get permission to email the documents I discuss to those requesting copies and having difficulty with connectivity – however, for now it is probably best to make contact through the website and request that the document is emailed.

There is one other option, which is to use the web by email system that I will describe in a future post.

Apple Cider Preparation – Food Processing Videos

The video is shows the juice pressing process used by Woods Cider Mill in the apple cider process.

What I find interesting and worthy of thought are:

      • the potential to use the liquid extraction process on other separations – eg cashew apples, spent grain from brewing, cassava pressing in washing process
      • the simplicity of the technology and it robustness (no close tolerance, no electrical needs if apples are crushed by hand –
      • the minimal technology support needs
      • the type of process and equipment than can be used, in a safe and hygenic operation, so long as the necessary processes are in place
      • the possibilities of carrying out the process on a reasonably large scale