As the global population rises and food prices do too, many scientists are looking for alternatives to traditional foodstuffs
- The Observer, Saturday 15 June 2013
Eating insects
Two billion people around the world, primarily in south-east Asia and Africa, eat insects – locusts, grasshoppers, spiders, wasps, ants – on a regular basis. Now, with food scarcity a growing threat, efforts are being made to normalise the concept of entomophagy, or the consumption of insects, for the other 5 billion. Last year, the UN’s Food and Agriculture Organisation (FAO) published a list of more than 1,900 edible species of insects; the EU, meanwhile, offered its member states $3m to research the use of insects in cooking.
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Why? Because insects, compared to livestock and fish, are a much more sustainable food source. They are available in abundance: for every human on Earth, there are 40 tonnes of insects. They have a higher food conversion rate than even our fastest-growing livestock (meaning they need to consume less to produce the same amount of meat) and they emit fewer greenhouse gases. As a fast-food option, which is how people treat them in countries such as Thailand, insects are greatly preferable to the water-guzzling, rainforest-destroying, methane-spewing beefburger. They are nutritious too: rich in protein, low in fat and cholesterol, high in calcium and iron.
That leaves the issue of palatability. Insects are generally viewed with disgust in the west, but attitudes are beginning to change. Thanks to adventurous restaurants – Copenhagen’s Noma has served up ants and fermented grasshoppers – and pioneering organisations such as Ento in London, we are coming to terms with the notion that insects might actually be nice to eat.
Edible packaging
Our current food system is monumentally wasteful. Last January, a report found that almost half of the world’s food is thrown away each year. In the UK alone, according to the government’s waste adviser, Wrap, we generate 6.6m tonnes of food, drink and packaging waste per annum, at a cost of £5bn.
The fight against waste has thrown up some intriguing solutions.
For Harvard bioengineer David Edwards, the answer to the packaging problem is simple: just eat it. Last year, Edwards launched WikiCells, a company that makes edible packaging for fruit juices, coffee, ice cream and other products. Mimicking the design of a piece of fruit, the packaging consists of a soft skin “entirely comprised of natural food particles held together by nutritive ions” encased in a protective outer layer that is edible or at least biodegradable. Not only are the membranes more environmentally friendly than plastic, they are designed to taste good too.
Other packaging innovations promise to lengthen the shelf life of perishables, which would mean a reduction in food and drink waste. Pepceuticals, a company based in Leicester, is developing an antimicrobial film that it claims “should significantly prevent the deterioration of … fresh meat and save waste”.
Related articles
- Biting into a bug? (thehindu.com)
- UN report says insects could be food of the future (abc.net.au)
- UN calls for insect recipes to fight world hunger (telegraph.co.uk)
- Hungry? Lacking protein? Eat an insect, UN says (usahitman.com)
- UN says bugs are food of the future (bigpondnews.com)
- UN: Eat more insects; good for you, good for world (news.yahoo.com)
- UN Says: Why Not Eat More Insects? (abcnews.go.com)
- UN urges world to eat more insects (bbc.co.uk)
- UN says: why not eat more insects? (kfwbam.com)
- UN says insects an underutilized food (toledoblade.com)
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