Annatto is an orange-red colouring matter, obtained from the pulp surrounding the seeds of Bixa Orellana, a shrub native to tropical America, and cultivated in Guiana, St Domingo, and the East Indies. It was sometimes used as a dye for silk and cotton goods though it does not produce a very durable colour, but it is much used in medicine for tinging plasters and ointments, and to a considerable extent by farmers for giving a rich colour to cheese, and by the food industry as a food colouring. Research Annatto
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Research Annatto