A study just published in Nature and reported in The Times here identified the particular class of the polyphenols found in red wine which confers the greatest health advantage, by suppressing production of a protein which narrows blood vessels. There’s been lots recently in the press about the supposed health benefits of moderate consumption of wine, in particular red wine, as part of the “Mediterranean diet.” Known as polymeric procyanidins, these polyphenols turn out to be present in particularly high concentrations in some wines from Sardinia and the Pyrenees. This is due to both the wine-making technique (the compounds are released from the seeds after a long period of fermentation) and variety (the Tannat grape from SW France is rich in these chemicals). The Cannonau wine from Nuoro (Sardinia) and the Madiran from Gers (France) have the highest levels of procyanidins, and it turns out that people from those areas are also of above-average longevity, especially the men.
You say potahto
Isabel Vales, a potato expert at Oregon State University, is using both molecular and conventional methods to breed pest and disease resistance, and evaluating thousands of traditional and specialty potato lines, including weirdly coloured ones, for their potential under organic conditions.
Let them eat pizza
A French “prince” has turned his castle into a Conservatoire National de la Tomate. He recommends Seeds of Diversity, with its database of 19,000 cultivars of vegetables, fruit, grains, flowers and herbs, as a source of heirloom tomato seeds.
Delicious profits from organic rice and spice
Another hymn to organic farming, with its emphasis on biodiversity and the services it provides, graces the pages of The Jakarta Post. There’s a lot of familiar stuff in the piece, and a couple of real eye openers, like this:
“It’s extraordinary, but many farmers today do not realize that the vegetables they grow produce seed. That they can harvest and grow seed from their vegetable crops. They are so used to having to buy seed for growing, it’s as though that’s all they know.”
I knew this was true for many people in the “North” but I had no idea it was also true for small farmers in Indonesia. The article contains lots of sound suggestions for increasing on-farm diversity, even without going the whole hog of organic certification.
You say potato
A paper in the latest GRACE looks at coloured potatoes as sources of natural colourants (anthocyanins). I suppose it is good to find other uses for these under-utilized varieties, but surely there are lots of people out there who’d really like to taste a purple potato. I know I would. And what about levels of micro-nutrients?