Bugs are food of the future: UN agency

Ella Ide AFP News Yahoo News 14 May 13;

Beetles, caterpillars and wasps could supplement diets around the world as an environmentally friendly food source if only Western consumers could get over their "disgust", the UN's Food and Agriculture Organisation (FAO) said on Monday.

"The main message is really: 'Eat insects'", Eva Mueller, director of forest economics at the FAO, told a press conference in Rome.

"Insects are abundant and they are a valuable source of protein and minerals," she said.

"Two billion people -- a third of the world's population -- are already eating insects because they are delicious and nutritious," she said.

Also speaking at the press conference was Gabon Forestry Minister Gabriel Tchango who said: "Insect consumption is part of our daily life."

He said some insects -- like beetle larvae and grilled termites -- were considered delicacies.

"Insects contribute about 10 percent of animal protein consumed by the population," he said.

The report said insect farming was "one of the many ways to address food and feed insecurity".

"Insects are everywhere and they reproduce quickly, and they have high growth and feed conversion rates and a low environmental footprint," said the report, co-authored by the FAO and Wageningen University in the Netherlands.

But the authors admitted that "consumer disgust remains one of the largest barriers to the adoption of insects as viable sources of protein in many Western countries".

Mueller said that brands such as yoghurt maker Danone and Italian alcoholic drinks maker Campari used dye from insects to colour their products.

It suggested that the food industry could help in "raising the status of insects" by including them in recipes and putting them on restaurant menus.

"Beetles, grasshoppers and other insects... are now showing up though on the menus of some restaurants in some European capitals," said Mueller, as she showed photo slides of crickets being used as decoration on top of high-end restaurant desserts.

The report also called for wider use of insects as feed for livestock, saying that poor regulation and under-investment currently meant it "cannot compete" with traditional sources of feed.

"The use of insects on a large scale as a feed ingredient is technically feasible, and established companies in various parts of the world are already leading the way," it added, highlighting in particular producers in China, South Africa, Spain and the United States.

"Insects can supplement traditional feed sources such as soy, maize, grains and fishmeal," it said, adding that the ones with most potential were larvae of the black soldier fly, the common housefly and the yellow mealworm.

The report also said the insects most commonly consumed by humans are beetles (31 percent), caterpillars (18 percent) and bees, wasps and ants (14 percent), followed by grasshoppers, locusts and crickets (13 percent).

The report said a total of 1,900 species of insects are consumed around the world.

It said trade in insects was thriving in cities such as Bangkok and Kinshasa and that a similar culture of insect consumption -- entomophagy -- should be established elsewhere, stressing that it was often cheaper to farm insects.

While beef has an iron content of 6.0 miligrams per 100 grams of dry weight, the iron content of locusts varies between 8.0 and and 20 miligrams per 100 grams, the report said.

It also said that insects require just two kilograms of feed to produce one kilogram of insect meat compared to a ratio of 8-to-1 for beef.

The report concluded: "History has shown that dietary patterns can change quickly, particularly in a globalised world. The rapid acceptance of raw fish in the form of sushi is a good example."

"Not everybody is ready to pop a bug in their mouth," Mueller said. "It will probably take a while. But some people are already doing it."

UN: Eat more insects; good for you, good for world
Frances D'Emilio Associated Press Yahoo News 13 May 13;

ROME (AP) — The latest weapon in the U.N.'s fight against hunger, global warming and pollution might be flying by you right now.

Edible insects are being promoted as a low-fat, high-protein food for people, pets and livestock. According to the U.N., they come with appetizing side benefits: Reducing greenhouse gas emissions and livestock pollution, creating jobs in developing countries and feeding the millions of hungry people in the world.

Some edible insect information in bite-sized form:

WHO EATS INSECTS NOW?

Two billion people do, largely in Asia, Africa and Latin America, the Rome-based U.N. Food and Agriculture Organization said Monday as it issued a report exploring edible insect potential.

Some insects may already be in your food (and this is no fly-in-my-soup joke). Demand for natural food coloring as opposed to artificial dyes is increasing, the agency's experts say. A red coloring produced from the cochineal, a scaled insect often exported from Peru, already puts the hue in a trendy Italian aperitif and an internationally popular brand of strawberry yogurt. Many pharmaceutical companies also use colorings from insects in their pills.

PACKED WITH PROTEIN, FULL OF FIBER

Scientists who have studied the nutritional value of edible insects have found that red ants, small grasshoppers and some water beetles pack (gram-per-gram or ounce-per-ounce) enough protein to rank with lean ground beef while having less fat per gram.

Bored with bran as a source of fiber in your diet? Edible insects can oblige, and they also contain useful minerals such as iron, magnesium, phosphorous, selenium and zinc.

WHICH TO CHOOSE?

Beetles and caterpillars are the most common meals among the more than 1,900 edible insect species that people eat. Other popular insect foods are bees, wasps, ants, grasshoppers, locusts and crickets. Less popular are termites and flies, according to U.N. data.

ECO-FRIENDLY

Insects on average can convert 2 kilograms (4.4 pounds) of feed into 1 kilogram (2.2 pounds) of edible meat. In comparison, cattle require 8 kilograms (17.6 pounds) of feed to produce a kilogram of meat. Most insects raised for food are likely to produce fewer environmentally harmful greenhouse gases than livestock, the U.N. agency says.

DON'T SWAT THE INCOME

Edible insects are a money-maker. In Africa, four big water bottles filled with grasshoppers can fetch a gatherer 15 euros ($20). Some caterpillars in southern Africa and weaver ant eggs in Southeast Asia are considered delicacies and command high prices.

Insect-farms tend to be small, serving niche markets like fish bait businesses. But since insects thrive across a wide range of locations — from deserts to mountains — and are highly adaptable, experts see big potential for the insect farming industry, especially those farming insects for animal feed. Most edible insects are now gathered in forests.

LET A BUG DO YOUR RECYLING

A 3 million euro ($4 million) European Union-funded research project is studying the common housefly to see if a lot of flies can help recycle animal waste by essentially eating it while helping to produce feed for animals such as chickens. Right now farmers can only use so much manure as fertilizer and many often pay handsome sums for someone to cart away animal waste and burn it.

A South African fly factory that rears the insects en masse to transform blood, guts, manure and discarded food into animal feed has won a $100,000 U.N.-backed innovation prize.

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Details about the U.N. Food and Agriculture Organization's work on edible insects at www.fao.org/forestry/edibleinsects


Breed insects to improve human food security: UN report
Farms processing insects for animal feed might soon become global reality as demand grows for sustainable feed sources
John Vidal guardian.co.uk 13 May 13;

The best way to feed the 9 billion people expected to be alive by 2050 could be to rear billions of common houseflies on a diet of human faeces and abattoir blood and grind them up to use as animal feed, a UN report published on Monday suggests. Doing so would reduce the pressure on the Earth's forests and seas as food sources.

The case for houseflies - or other insects like crickets, beetles, bees, wasps, caterpillars, grasshoppers, termites and ants - becoming a major industrial food source is being taken seriously by governments, says the report, because they grow exceptionally fast and thrive on the waste of many industrial processes. The authors envisage fully automated insect works being set up close to breweries or food factories that produce high volumes of farm waste. Each could breed hundreds of tonnes of insects a year that would be fed to other animals.

"The prospect of farms processing insects for feed might soon become a global reality due to a growing demand for sustainable feed sources," say the authors who have been working with the UN's Food and Agriculture Organisation (FAO) on the potential for insects improving human food security.

"The bioconversion process takes low-cost waste materials and generates a valuable commodity. Depending on the species, a single female fly can lay up to 1,000 eggs over a seven-day period, which then hatch into larvae. Potential big users would need vast quantities of the product – some pet food businesses alone could use over 1,000 tonnes per month," the report adds.

Insect eating may be frowned upon in the west but termites, mealybugs, dung beetles, stink bugs, leaf cutter ants, paper wasps, even some species of mosquitoes are all relished by someone, somewhere, suggests the study. Eighty grasshopper species are regularly eaten; in Ghana during the spring rains, winged termites are collected and fried or made into bread. In South Africa they are eaten with a maize porridge. Chocolate-coated bees are popular in Nigeria, certain caterpillars are favoured in Zimbabwe, and rice cooked with crunchy wasps was a favourite meal of the late Emperor Hirohito in Japan.

"In the past there has been a tendency to say insects are for primitive, stupid people. This is nonsense, a misconception that must be corrected," says lead author Arnold van Huis, who has helped write a Dutch insect recipe book that includes mealyworm pizza and locust ravioli.

Westerners barely know what they are missing, he suggests. Dragonflies boiled in coconut milk with ginger are an Indonesian delicacy; beekeepers in parts of China are considered virile because they eat larvae from their hives, and tarantulas are popular in Cambodia. Europe gave up eating them centuries ago, but Pliny the elder, the Roman scholar, wrote that aristocrats "loved to eat beetle larvae reared on flour and wine" while Aristotle described the best time to harvest cicadas: "The larva on attaining full size becomes a nymph; then it tastes best, before the husk is broken. At first the males are better to eat, but after copulation the females, which are then full of white eggs," he wrote.

So far, says the UN, more than 1,900 species of insects have been identified as human food, with insects forming part of the traditional diets of possibly 2 billion people. The most consumed insects are the beetles (468 species), followed by ants, bees and wasps (351), crickets, locusts and cockroaches (267), and butterflies, moths and silkworms (253).

The crunch factor for governments and food producers may be the lower costs. Cattle and poultry are poor at converting food to body weight, but crickets, says the report, need just two kilograms of feed for every one kilogram of weight gained. "In addition, insects can be reared on organic side-streams including human and animal waste, and can help reduce contamination. Insects are reported to emit fewer greenhouse gases and less ammonia than cattle or pigs, and they require significantly less land and water than cattle rearing," says the report.

It is because insects are metabolically more efficient that it is potentially far cheaper to raise them om a large scale than any other animal, says Van Huis. But because of the psychological factors [of many people not liking the idea of eating insects directly] the greatest potential in the short term at least, could be to rear insects to provide animal feed, he said.

Eva Muller, director of the FAO's forest economic policy and products division, which co-authored the report, said: "We are not saying that people should be eating bugs. We are saying that insects are just one resource provided by forests, and insects are pretty much untapped for their potential for food, and especially for feed."

Insects, say the authors, are widely misunderstood. "[They] deliver a host of ecological services that are fundamental to the survival of humankind. They play an important role as pollinators in plant reproduction, in improving soil fertility through waste bioconversion, and in natural biocontrol for harmful pest species, and they provide a variety of valuable products for humans such as honey and silk and medical applications such as maggot therapy."

The Netherlands is now the centre for research into industrial-scale insect rearing with several companies and universities working on ways to scale up production. "The larvae of mealworm species and the superworm are [now] reared as feed for reptile, fish and avian pets [in the Netherlands]. They are also considered particularly fit for human consumption and are offered as human food in specialised shops," says the report.

Insect recipes

Grasshopper tortillas

Collect 1,000 young grasshoppers. Soak for 24 hours. Boil and let dry. Fry in a pan with garlic, onion, salt and lemon. Roll up in tortillas with chilli sauce and guacamole.

Witchetty grub barbecue

Sear grubs with butter and garlic in a hot pan until brown. Grab the head and bite off the rest. The taste is of fried egg with a hint of nuts.

Forest products critical to fight hunger - including insects
New study highlights role of insects for food and feed consumption
FAO 13 May 13;

Rome, 13 May 2013 – Forests, trees on farms and agroforestry are critical in the fight against hunger and should be better integrated into food security and land use policies, FAO Director-General José Graziano da Silva said today at the International Conference on Forests for Food Security and Nutrition in Rome (13-15 May).

“Forests contribute to the livelihoods of more than a billion people, including many of the world’s neediest. Forests provide food, fuel for cooking, fodder for animals and income to buy food,” Graziano da Silva said.

“Wild animals and insects are often the main protein source for people in forest areas, while leaves, seeds, mushrooms, honey and fruits provide minerals and vitamins, thus ensuring a nutritious diet.”

“But forests and agroforestry systems are rarely considered in food security and land use policies. Often, rural people do not have secure access rights to forests and trees, putting their food security in danger. The important contributions forests can make to the food security and nutrition of rural people should be better recognized,” Graziano da Silva said.

Frittered critters – wild and farm-raised insects

One major and readily available source of nutritious and protein-rich food that comes from forests are insects, according to a new study FAO launched at the forests for food security and nutrition conference. It is estimated that insects form part of the traditional diets of at least 2 billion people. Insect gathering and farming can offer employment and cash income, for now mostly at the household level but also potentially in industrial operations.

An astounding array of creatures

With about 1 million known species, insects account for more than half of all living organisms classified so far on the planet.

According to FAO’s research, done in partnership with Wageningen University in the Netherlands, more than 1900 insect species are consumed by humans worldwide. Globally, the most consumed insects are: beetles (31 percent); caterpillars (18 percent); bees, wasps and ants (14 percent); and grasshoppers, locusts and crickets (13 percent). Many insects are rich in protein and good fats and high in calcium, iron and zinc. Beef has an iron content of 6 mg per 100 g of dry weight, while the iron content of locusts varies between 8 and 20 mg per 100 g of dry weight, depending on the species and the kind of food they themselves consume.

First steps for the squeamish

“We are not saying that people should be eating bugs,” said Eva Muller, Director of FAO’s Forest Economic Policy and Products Division, which co-authored “Edible insects: Future prospects for food and feed security”.

“We are saying that insects are just one resource provided by forests, and insects are pretty much untapped for their potential for food, and especially for feed,” Muller explained.

Farming insects sustainably could help avoid over-harvesting, which could affect more prized species. Some species, such as meal worms, are already produced at commercial levels, since they are used in niche markets such as pet food, for zoos and in recreational fishing.

If production were to be further automated, this would eventually bring costs down to a level where industry would profit from substituting fishmeal, for example, with insect meal in livestock feed. The advantage would be an increase in fish supplies available for human consumption.

Bugs get bigger on less

Because they are cold-blooded, insects don’t use energy from feed to maintain body temperature. On average, insects use just 2 kg of feed to produce 1 kilo of insect meat. Cattle, at the other end of the spectrum, require 8 kg of feed to produce 1 kg of beef.

In addition, insects produce a fraction of emissions such as methane, ammonia, climate-warming greenhouse gases and manure, all of which contaminate the environment. In fact, insects can be used to break down waste, assisting in the composting processes that deliver nutrients back to the soil while also diminishing foul odours.

Enabling policies lacking

However, legislation in most industrialized nations forbids the actual feeding of waste materials and slurry or swill to animals, even though this would be the material that insects normally feed on. Further research would be necessary, especially as regards the raising of insects on waste streams. But it is widely understood by scientists that insects are so biologically different from mammals that it is highly unlikely that insect diseases could be transmitted to humans.

Regulations often also bar using insects in food for human consumption, although with a growing number of novel food stores and restaurants cropping up in developed countries, it seems to be largely tolerated.

As with other types of food, hygienic production, processing and food preparation will be important to avoid the growth of bacteria and other micro-organisms that could affect human health. Food safety standards can be expanded to include insects and insect-based products, and quality control standards along the production chain will be key to creating consumer confidence in feed and food containing insects or derived from insects.

“The private sector is ready to invest in insect farming. We have huge opportunities before us,” said Paul Vantomme, one of the authors of the report. “But until there is clarity in the legal sphere, no major business is going to take the risk to invest funds when the laws remains unclear or actually hinders development of this new sector,” he explained.