Thursday, 10 March 2016

Africa's 20 most popular foods




Southern Africa has the most varied cuisines of any region on the continent
African cuisine is as diverse as the hundreds of different cultures and groups that inhabit the continent. This diversity is reflected in the many local culinary traditions in terms of choice of ingredients, style of preparation and cooking techniques. Many of the dishes are also affected by the subsistence nature of living in many parts of the continent – you find farmers, herdsmen and fishermen everywhere. The crops they grow or the animals they keep thus affect the popular dishes in their regions.
The dishes have also been influenced by foreign visitors and invaders. The food of North Africa has been heavily influence by the Phoenicians of the 1st century who brought sausages, followed by the Carthaginians who introduced wheat, then the nomadic Berbers adapted the semolina from wheat into couscous – a main staple diet in the region. From the 7th century onwards, the Arabs introduced a variety of spices, like saffron, cinnamon, ginger and cloves and, from the New World, they got chillies, tomatoes and potatoes.
In East Africa the Arab influence on cuisine is evident. Settling on the coast over 1,000 years ago, the Arabs sailed in with rice and spices, particularly noticeable in the Swahili foods of the coastal regions. They also brought lemons, organdies and domestic pigs from China and India. Next came the British Empire and with it Indian workers who brought their foods with them, such as spiced vegetable curries, lentil soups, chapattis and pickles. The British themselves also influence food by bringing in new breeds of sheep, cattle and goats along with high-quality coffee.
As we go more inland, even though cattle, sheep and goats are widespread in eastern Africa, they are often regarded as a form of currency and a store of wealth by pastoralists. So while they may be used for dairy products, they are not often used for their meat. Many people in the eastern region therefore rely heavily on mainly on grains, beans and vegetables, with fish providing protein in lake and river regions.  One of the most widespread staples in eastern Africa, and in southern Africa too, is ground maize. Maize flour is cooked with water to form a stiff porridge or dough - called ugali, nsima or sadza, depending where you are.
It may be neighbouring East Africa but the food in the Horn of Africa is very different. Here the Islamic and Christian faiths have greatly impacted the food. There is no pork for starters, and as for Coptic Christians they adapted to the meat-free fast days with an increased use of pulses, lentils and chickpeas. The main traditional dishes in Ethiopian  and Eritrean cuisine are very similar and both are dominated by tsebhis (stews) served with injera - a flatbread made from teff, wheat, or sorghum, also found in Somalia. In Somalia an interesting addition to their cuisine is pasta, which arrived with the Italians in the 1880s, and sweet dishes that came with the Arabs and Yemenis.
Just before the British and the Indians, the Portuguese came to Africa and introduced techniques of roasting and marinating. This is evident in East Africa with the nyama choma (roast meat) culture, but also in Southern Africa.
Southern Africa has the most varied cuisines of any region on the continent, this is a result of the blend of cultures – the indigenous African tribal societies, European and Asian populations. Most of the African ethnic communities have diets that include meat and milk, some vegetables and grains. The Portuguese influence saw the introduction of piri-piri (chilli seasoning) into the region, and the European settlers brought with them curing techniques that produced the infamous cured meat – biltong.
West and Central Africa were far less influenced by the European settlers. Centuries before the Europeans arrived, West African people were trading with the Arab world in spices and thus typically West African food is filled with hot spices.  With the least contact with the “outside world”, Central African food remains the closest to traditional ingredients and cooking techniques. The only notable adoption of cassava, peanut, and Chile pepper plants arrived along with the slave trade during the early 16th century.
After careful consideration of the various regions and cross-boundary recipes here are the top 20 most popular dishes on the continent:
Biltong
Cured meat exported all over Africa, originally from South Africa
Fufu
Very popular in West Africa, it is made by boiling starchy food crops like cassava, yams or cooking plantains and then pounding them into a dough-like consistency
Mandazi 
A form of fried bread, taken in sweet or savoury form, popular in East Africa
Injera
A sourdough-risen flatbread with a unique, slightly spongy texture, popular in Ethiopia, Eritrea and Somalia
Jollof rice
The most popular rice dish in West Africa, the most common basic ingredients are rice, tomatoes, tomato paste, onion, salt and red pepper
Chermoula
A mixture of herbs, oil, lemon juice, pickled lemons, garlic, cumin, and salt very popular in North Africa
Nyama Choma/ Braaivleis /Mechoui
Many different names and cooking techniques, but meat roast over charcoal is popular all over the continent
Couscous
Made from steamed and dried durum wheat, couscous has become a popular alternative to rice and pasta in North Africa
Garri
A popular West African starchy carbohydrate made from pounded and fermented cassava tubers
Kachumbari
A fresh tomato and onion salad dish popular in the cuisines of Madagascar, East Africa and the African Great Lakes region
Tagine
A historically Berber slow-cooked meat, chicken or fish dish from North Africa, named after the type of earthenware pot in which it is cooked.
Fried Plantain or Dodo
Found anywhere that plantains grow, this is a staple on the continent and served with meats dishes.
Shahan Ful
A vegetarian fava bean dish very common in Eritrea, Ethiopia and Sudan.
Biryanis and Pilaus
With Indian origins, these rice dishes are fragrant and flavourful, mostly popular along the East African coast.
Suya
A spicy shish kebab-like skewered meat delicacy in West Africa.
Wat, We’t or Wot
A highly flavourful and spicy Ethiopian or Eritrean stew that is prepared with meat or a variety of vegetables.
Feijoada
A typically Portuguese stew of beans with beef and pork which is popular in southern Africa.
MafƩ
A famous and popular West African stew with meat simmered in a sauce thickened with ground peanuts.
Sadza/Nsima/Ugali 
Cooked with water to a porridge or dough-like consistency, this is the most common staple starch in East Africa, the Great Lakes region and southern Africa.

What is food ?

Food makes your body work, grow and repair itself. The kind of food you eat can affect the efficiency of these processes. Body function and the food that sustains it is infinitely complex. Food is in fact one of the most complicated sets of chemicals imaginable.
Getting to know which nutrients are in which foods can help you to understand something of this complex relationship between your food and your body.
Chemicals in food
Food is composed of many different chemical substances - 'macronutrients' (major nutritional components that are present in relatively large amounts, such as protein), 'micronutrients' (major nutritional components that are present in relatively small amounts, such as vitamins), water, and roughage (dietary fibre). Many other components can also be present in food
Food may contain colours (natural and synthetic), flavours, pharmacologically active substances (such as caffeine, steroids, and salicylates, which chemically affect the body), natural toxicants (naturally occurring poisons, such as cyanide),  and various contaminants (substances resulting from a contaminated environment, such as pesticides). Even characteristic flavours such as those of oranges and passionfruit can depend on the presence of a dozen or more chemicals.
The chemical nature of food is changed by storage, preservation and, especially, by cooking. Food chemicals can also interact amongst themselves within the body. For example, the availability to the body of iron from plant sources depends on the amount of vitamin C present in the food eaten. The way in which carbohydrate is absorbed from the bowel depends to some extent on the presence of dietary fibre, even though the fibre itself is not absorbed.

Physical form of food
Food is also more than just the chemicals it contains. Its physical characteristics are important. The size of food particles can affect the extent to which nutrients are digested and made ready for by the body. For example, eating an intact apple has nutritional value different from drinking all the same chemicals in an apple purƩe. Ground rice is more rapidly digested than unground rice. Nutrients can be more easily absorbed from peanut butter (paste) than from peanuts eaten whole.
Acid or alkaline
The acidity and alkalinity of food are physical properties often thought to be important. In fact, they are only important insofar as they might alter the rate of emptying of the stomach, digestion in the small bowel and the acidity or alkalinity of the urine. Our bodies can cope with a wide range in and alkalinity without much problem. Acid foods are generally sour while alkaline foods often have a slightly soapy taste. The use of sodium bicarbonate (baking soda) can make foods alkaline. It can also cause loss of vitamin C and contribute to our intake of sodium.

http://apjcn.nhri.org.tw/server/info/books-phds/books/foodfacts/html/maintext/main2a.html

Water quality in agriculture



Setting agricultural water quality standards is easy, but implementing those standards is a much less trivial endeavor. In a time when the quality of drinking water is under high scrutiny, many individuals not working in the agricultural sector take irrigation water quality for granted. It is important that food producers and manufacturers use clean water, but the smaller the farm, the more difficult water testing and treatment can become. We explore the scientific, economic, and policy challenges associated with setting and implementing water quality standards in agriculture in the latest episode of "The Forum: Where science comes to socialize," the official podcast of the Institute on Science for Global Policy. This episode, titled Ep. 12: "Something in the Water" can be accessed directly at the following link, and should be of interest to agriculturalists, food scientists, policy makers, and members of the food industry, among others: www.soundcloud.com/isgps-the-forum/episode-12. 

ISGP's "The Forum" is a free audio podcast discussing a variety of science-and-society topics ranging from food safety and infectious disease to climate change and synthetic biology. Each 15-25 minute episode summarizes expert opinions on a designated science policy topic debated at a past ISGP conference. The podcasts feature informal conversations between three co-hosts who explain the science and then elucidate associated opportunities, challenges, and policy issues, making "The Forum" an ideal source of information for individuals of all backgrounds and levels of scientific expertise. "The Forum" is currently celebrating four months of educating listeners on these important science-and-society topics, during which time it has gained an audience in 40 countries spanning six continents. New episodes of the podcast are released every-other Monday at 10:00 AM ET on our SoundCloud channel (www.soundcloud.com/isgps-the-forum) and can also be downloaded for free on iTunes.

If you enjoy Episode 12 on water quality standards in agriculture, be sure to check out the following episodes of "The Forum," as well:
To learn more about the ISGP and its programs, please visit www.scienceforglobalpolicy.org.

Aubrey Paris
Senior Fellow
Institute on Science for Global Policy (ISGP)

Tuesday, 8 March 2016

Top 5 tech innovations in agriculture




There are an estimated 570 million farms in the world and, in a neat twist of number synergy, according to Valoral Advisors, funding rounds in technological innovations along the agriculture and food value chain also raised around $570 million in 2014.
While much of this investment is directed at ag-tech startups and disruptive market newcomers, in many ways priorities remain the same as ever – innovation in resource use, especially in terms of land and water (also energy), to boost efficiency and yields. Here are five of the solutions helping to support global growth of sustainable agriculture and food production…

1. DATA PRESERVED IN SOIL

For traditional farming models, perhaps the primary determinant of supply capacity is simply the availability and suitability of land. However, any idea of future potential must be built on current data, with what data there is then mapped to tell the story of a region. This story is effectively written in the dirt, the soil.
The Africa Soil Information Service (AfSIS) is developing continent-wide digital soil maps for sub-Saharan Africa using new analysis, statistics, field trials and crowdsourcing. Funded by the Bill and Melinda Gates Foundation, the ISRIC World Soil Information AfSIS project has forged key partnerships with governments, plus a range of stakeholders and academic institutions, including the Earth Institute at Columbia University.
Digital soil mapping, especially in data-sparse regions such as Africa, is key to planning sustainable agricultural intensification and natural resources management. With open access, these interactive maps are publicly available to be explored on Google Earth.

2. LETTUCE WITH YOUR MICROCHIPS?

Singapore relies heavily on imports for more than 90 per cent of its fruit and vegetables. Therefore, diners in Japanese restaurants there might be surprised to discover their rocket, radish and baby spinach has not only been cultivated locally in the country’s first licensed indoor vegetable farm, but by an electronics giant better known for TVs – Panasonic.
Annual soil-based production capacity at the initial Panasonic facility launched last year was 3.6 tonnes, but the company is by no means the only high-tech brand setting up urban and vertical farms, to showcase technology rather than make profit.
Sharp is growing strawberries in Dubai, while Sony, Toshiba and Fujitsu are all utilising former clean-room facilities at semiconductor plants across Japan for lettuce. These no-wash, no-soil greens are cultivated by means of hydroponics and grown at more than twice the speed of normal field production, thanks to specialised LED lighting to optimise photosynthesis.

 

3. GREENS FED ON RAINBOW WASTE

Hydroponics, as the name suggests, is a growing method based on use of mineral-enriched water, whereas aquaponics takes matters a step further, bringing together fish and plant farming in one recirculating system.
At Bioaqua Farm at Blackford in Somerset – the largest integrated aquaponic farm in Europe – vegetables are grown and Rainbow Trout reared together in organic symbiosis, without chemicals or pesticides, but with the help of bees and worms.
The fish provide most of the plant nutrition, by way of aquaculture effluent. In turn, fish waste metabolites are removed by nitrification and direct uptake by plants, with the suitably treated water then flowing back to the fish. In all, it is claimed this virtuous circle of reciprocity requires up to 95 per cent less water than traditional horticulture farming.
For sustainable food production and agriculture, the aquaponics ecosystem principles also appear attractively scalable, from back gardens to commercial facilities.

4. POWER OF A NO-SALT DIET

Water efficiency in farming and food production, whether for traditional rural irrigation, arid regions or urban farms, represents a key metric in the face of global population growth and climate change.
Considered together, scarcity of freshwater resources and the fact that 71 per cent of the Earth’s surface is nevertheless covered in water, therefore make a compelling argument for desalination. The stumbling block, historically, has been its energy-hungry nature and prohibitively high running costs relative to agricultural profit margins.
The innovative solution offered by Sundrop Farms draws on one of the few renewable resources in even more abundant supply than seawater – sunlight. Sundrop Farms harvests solar power to generate energy for desalination to supply hydroponic greenhouses.
Requiring no freshwater, farmland or fossil fuels, this potential game-changer for sustainable farming is creating 300 jobs in Port Augusta, South Australia, with a ten-year contract won to grow tomatoes for Coles supermarkets.

5. SIDE ORDER OF WINGS

In the media, drones have mostly been associated with the military and spying, plus the odd pizza-delivery publicity stunt.
An annual competition in the United Arab Emirates, UAE Drones for Good Award, acknowledges both this dark reputation and that things are changing. Competition finalists this year pitched benefits for unmanned aerial vehicles from conservation support to medical deliveries, as well as farming help.
The Munich-based Quantum-Systems entry was a transition aircraft combining capabilities of a multicopter and fixed-wing model – vertical take-off, plus fast forward flight like a normal plane. Quantum VRT design allows farmers to adopt precise fertilisation strategies via accurate flight-planning software with evaluation of crop conditions, so reducing reliance on fertilisers and boosting yields.
Dubai plans to scale up agriculture drone technology usage in a bid to become self-sufficient in food security by 2030. With 98 per cent imports, the emirate currently outstrips Singapore.

4 Innovations For Poor Farmers

Whenever I visit small farmers in a poor country, I’m struck by how many are laboring with hoes, plows, and other implements that haven’t changed in generations. Yet farmers in wealthier countries have benefited from wave after wave of technological improvements. This gap is one big reason why some farmers produce much more food than others.
Thankfully, some of the brightest minds in Africa, India, and elsewhere are creating new tools to close the gap.
Here are four especially promising innovations…

https://www.gatesnotes.com/Development/Innovation

Agriculture Is The Future Of Nigeria

Editor’s Note: This article is part of a series by the Financial Times’ This Is Africa publication on realizing Africa’s agricultural potential, in partnership with the Rockefeller Foundation. The Skoll World Forum is a proud media partner for the initiative, and you can find the whole series here.
Adam Robert Green is a senior reporter at This is Africa, focusing on trade and investment, development policy, energy and social service delivery.

In the 1960s, before it turned to oil, Nigeria was one of the most promising agricultural producers in the world. Between 1962 and 1968, export crops were the country’s main foreign exchange earner. The country was number one globally in palm oil exports, well ahead of Malaysia and Indonesia, and exported 47 percent of all groundnuts, putting it ahead of the US and Argentina.
But its status as an agricultural powerhouse has declined, and steeply. While Nigeria once provided 18 percent of the global production of cocoa, second in the world in the 1960s, that figure is now down to 8 percent. And while the country produces 65 percent of tomatoes in west Africa, it is now the largest importer of tomato paste.

Former Nigeria’s minister for agriculture, Akinwumi Adesina, reels off these statistics with regret as he discusses the country’s deteriorating agriculture sector. “Nigeria is known for nothing else than oil, and it is so sad, because we never used to have oil – all we used to have was agriculture,” he says.
Nigeria’s oil has come at the detriment of the agriculture sector, he claims, “and that is why we had a rising poverty situation. We were having growth but without robust growth able to impact millions of people because it is not connecting to agriculture.”

That might explain why Nigeria’s economic statistics are so puzzling. While the country has been posting high growth figures, and makes it into Goldman Sachs’ ‘Next 11’ emerging markets group, absolute poverty is rising, with almost 100 million people living on less than a $1.25 a day. The National Bureau of Statistics says 60.9 percent of Nigerians in 2010 were living in absolute poverty, up from 54.7 percent in 2004.

http://www.forbes.com/sites/skollworldforum/2013/08/08/agriculture-is-the-future-of-nigeria/#60da2833bc9b