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An incredible cereal

and proudly African

S

orghum, an ancient cereal grain that is a staple crop in India

and throughout Africa, originated in Africa and can there-

fore be considered a proudly African cereal. During April

this year, the first international sorghum conference of the

21st century was hosted in Cape Town.

The broad spectrum of topics covered during the five-day confer-

ence confirmed the important contribution of sorghum to food

security worldwide. As part of the event, several symposia were

presented with titles such as ‘Productivity and food security for the

smallholder farmer’, ‘A driver for change: Sorghum’s role in global

markets’ and ‘Bringing ancient grains to the world’s dinner tables’.

One of the plenary speakers at the conference, Prof John Taylor

from the University of Pretoria, presented a discussion titled ‘Can

sorghum meet the bread needs of the 21st century consumers?’

Wide range of uses and very nutritional

Sorghum has a wide range of uses, which include human food,

animal feed, the production of alcoholic beverages and biofuels.

Nutritionists categorise sorghum as a healthy cereal as part of a

balanced diet, as it is rich in essential nutrients that are significant

in the body.

Given its nutritional and increasing commercial value, many re-

gions around the world are involved in the large-scale production of

this crop. Sorghum is tasty and gluten free, but often gets over­

looked in South Africa as it is still psychologically associated with

poverty. Sorghum contains a wide variety of beneficial phytochemi-

cals, such as tannin, that act as antioxidants in the body.

Sorghum is a good source for dietary fibre. It is safe to eat for those

with Celiac disease.

The Journal of Agricultural and Food Chemistry

published a study that analysed the genome of sorghum to deter-

mine if it contained any gluten proteins. They confirmed that gluten

is absent in all varieties of sorghum. Sorghum flour is becoming a

popular gluten-free substitute for wheat flour in baked goods.

Sorghum – important for Africa

Nigeria ranks as the top sorghum producing country in Africa, and

the second largest in the world. The estimated average production

of sorghum in Nigeria in 2018 is 6,8 million metric tons, compared

to the 8,7 million metric tons produced by the United States, ranked

first in the world. Sorghum in Nigeria is mostly grown for food, while

other minor uses include livestock food and industrial raw material

for production of malt and beer.

In South Africa, we need to be aware of global trends and oppor-

tunities to increase demand and reduce supply bottlenecks of sor-

ghum. According to the latest production forecast released by the

Crop Estimates Committee in June this year, the expected sorghum

production for 2018 is 83 070 tons. Sorghum’s nutritional and health-

promoting attributes should be better understood and promoted.

Quality analyses

The focus of sorghum cultivar selection in South Africa has tradition-

ally been on malting quality, but with the steady growth in sorghum

for human food, the Sorghum Trust tasked the Southern African

Grain Laboratory (SAGL) to develop a series of quality tests to annu-

ally evaluate different grain sorghum cultivars with the focus on food

processing requirements for human and animal nutrition.

Wiana Louw,

general manager, Southern African Grain Laboratory

Augustus 2018

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1: Laboratory grain pearler used to decorticate sorghum.

2: Examples of sorghum cultivars A, B and C before and after decortication.

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