More of one of our favourite leitmotifs. Lois Englberger tells me her team’s latest paper on variety-level nutritional composition has been accepted by the Journal of Food Composition and Analysis ((Carotenoid and mineral content of Micronesian giant swamp taro (Cyrtosperma) cultivars by Englberger L, Schierle J, Kraemer K, Aalbersberg W, Dolodolotawake U, Humphries J, Graham R, Reid AP, Lorens A, Albert K, Levendusky A, Johnson E, Paul Y, Sengebau F.)). It won’t actually be out for a few months, but here’s the abstract to whet your appetite:
Dietary change in Micronesia has led to serious problems of vitamin A deficiency and other nutritionally-related health problems. It is essential to identify nutrient-rich indigenous foods that may be promoted for health improvements. Giant swamp taro (Cyrtosperma chamissonis) is important for food and culture on atoll and mountainous islands of Micronesia. There are many Cyrtosperma cultivars, but few have been analyzed for nutrient content. Samples were collected in the Federated States of Micronesia (Pohnpei, Chuuk and Yap) and the Republic of Palau, assessed for corm flesh color and other attributes, and analyzed for carotenoids (β- and α-carotene, β-cryptoxanthin, lutein, zeaxanthin, and lycopene) and minerals (including iron, zinc, and calcium). Of 34 cultivars analyzed, β-carotene concentrations varied from 50 to 4486 μg/100 g. Yellow-fleshed cultivars generally contained higher carotenoid concentrations. Of the ten cultivars analyzed for mineral content (wet weight basis), substantial concentrations of zinc (5.4 to 46.1 mg/100 g), iron (0.3 to 0.8 mg/100 g) and calcium (121 to 305 mg/100 g) were found. All cultivars were acceptable for taste and production factors. These carotenoid- and mineral-rich cultivars should be considered for promotion in Micronesia and other areas for potential health benefits.
I am researching foods that will grow in the tropics, in wet conditions, and in areas of constant cloud coverage. Would the giant swamp taro or any other type of taro fit that discription. thanks.
Yes, swamp taro or any type grows very well here in Pohnpei, the wettest place on earth, outside of the Amazon.