Oshada Kurakkan finger millet: drought-zone silica uptake and calcium bioavailability?
How does indigenous finger millet (Eleusine coracana) accumulate high calcium and resistant starch under rainfed dry-zone chena farming without irrigation?
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3 Answers from travellers
Oshada Kurakkan is a drought-resilient finger millet cultivar bred from traditional Sri Lankan landraces at Mahailluppallama. It thrives in arid red-yellow latosols receiving under 400mm of seasonal rain. Its extensive fibrous root system secretes organic malate acids that mobilize insoluble soil calcium and silica, concentrating over 340mg of bioavailable calcium per 100g of whole grain (triple the concentration of dairy milk). Its starch granules possess a high amylose-to-amylopectin ratio, creating high resistant starch content that prevents post-prandial glycemic spikes.
Whole grain Kurakkan flour milled on low-speed stone querns preserves essential methionine amino acids that decompose under high-speed steel roller heat.
Simmering roasted Kurakkan flour with coconut milk into traditional thick porridge (Helapa) creates complex prebiotic fuel for beneficial intestinal microflora.
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