Arrowroot powder is refined starch extracted from the tubers of an arrowroot plant.
A fecula is a flavorless starchy ingredient pulverised and extracted from vegetables like tubers, rhizomes, or seeds, and used for cooking as a food thickener. Examples are tapioca, sago, and arrowroot; starchy powder from rice and potatoes.
Arrowroot powder is available in grocery stores in the spice aisle or on-line at gourmet shops. Try Amazon.
I believe tapioca starch.
Arrowroot is a thickener, so possible substitutes would be cornstarch or tapioca. Potato starch would be another possibility. In some desserts or clear cold dishes, one might experiment with gelatin in place of arrowroot.
Do you mean as in Potatoes, Sweet Potatoes, Yams, Tapioca, Kudzu, Arrowroot? These are all starchy veg.
diabetic people can use cornflour and custurd powder?
No, kudzu [Pueraria lobata] isn't the same as arrowroot [Maranta arundinacea]. Kudzu is in the same family [Fabaceae] as beans and peas. Arrowroot is in the family of the obedience plants [Marantaceae]. Kudzu's benefits are countered by its aggressive competition for space, and consequently devastating impact on the environment. Arrowroot has no such reputation.
brown on the outside and white with purple dots on the inside
yes
Starch powder is a congealing agent used in cooking to thicken puddings, pie fillings, sauces, gravies and other liquids. The various powders are preferred over flour as a thickener because they are flavorless and dissolve easily in hot and cold liquids. Further, many can add a gloss to the foods to which they are added. Cornstarch, arrowroot and tapioca are the most commonly used culinary thickeners. It also can be used in a mixture to lift fingerprints.
Arrowroot, or flour made from arrowroot.