Health and agriculture

To follow the last post, here’s a photo-essay from the BBC on another useful insect, the “desert shrimp,” better known as the locust. Useful? Well, that may be overstating the case, but they are widely eaten in the Sahara, deep fried in vegetable oil. I have tried them. Not as bad as one might think.

Anyway, what I really wanted to alert you all to is that the latest Spore and New Agriculturalist are out. There are lots of interesting pieces, both brief and longer, but is it a coincidence that both issues focus on aspects of agriculture and health? Spore has a feature on “functional foods” here, things that provide disease prevention as well as nutrition. New Agriculturalist has number of articles on various different aspects of the topic here, plus other sources of information.

Açaí plantations?

The juice and pulp of the fruits of the Amazonian palm Euterpe oleracea (açaí­) have long been consumed locally but are increasingly used in juices and nutraceutical beverages aimed at the North American market. They are harvested from the wild, but some people are now thinking plantations too. But speaking of wild harvesting of fruits/nuts, this article suggests that this can be sustainable only where it is not accompanied by hunting of key seed dispersers.

Chia book out

There’s a new book out on “chia,” Salvia hispanica, a “forgotten crop of the Aztecs.” I haven’t seen it, but it seems pretty comprehensive. There’s a review here. Chia is interesting among other reasons because although a good source of omega-3 fatty acid it doesn’t give off a “fishy” flavour.

Kenyan medicinal plant remedies documented

Catching up with some old friends in Nairobi last week I found out that one of them has been involved in preparing a really wonderful “Herbal and Nutritional Guide for Kenyan Families” for an NGO called the Trust for Indigenous Culture and Health. According to its mission statement, TICAH works “to strengthen our understanding of the positive links between cultural belief, practice, and knowledge and the attainment of health.”

Tidings of discomfort and sorrow

Frankincense — traditional gift at this time of the year — is the resin of a tree called Boswellia papryrifera native to the Horn of Africa. Alas, a scientific study in the Journal of Applied Ecology proves that tapping the tree for resin decreases the number of flowers and seeds the tree produces, thus “potentially” harming the regeneration of the frankincense woodlands. Non-tapped trees produce three times more seeds than tapped trees, and those seeds are five times more likely to germinate. The authors say that collectors should make fewer taps per tree and allow long rest periods with no tapping.