The invention discloses highly-rehydratable instant sweet potato vermicelli. The highly-rehydratable instant sweet potato vermicelli is prepared from the following raw materials: purple
potato starch, purple Chinese yam, purple potato leaf, pitaya peel,
synsepalum dulcificum, strawberry, white atractylodes
rhizome, poria,
bletilla striata, white peony root, Angel
grape wine yeast, table salt and compound
enzyme. The highly-rehydratable instant sweet potato vermicelli provided by the invention is rich in
nutrition, bright in color, strong in fragrance, fast in rehydration and convenient to eat, and increases the
economic income by 9.6%; after the
Chinese herbs are extracted, an extract together with the purple
potato starch is fermented by the Angel
wine yeast so as to increase mellow
aroma and promote absorption and utilization, so that the highly-rehydratable instant sweet potato vermicelli can detoxify and beautify a body, lose weight,
delay aging, protect heart vessels and cerebral vessels, enhance the
immunity and inhibit and
resist cancers; the purple
potato starch and the Chinese yam pulps with different temperatures are added by several times, so that the
toughness of a purple potato
starch dough is improved, and the vermicelli still retains the
chewiness after rehydration and is flexible and tough; the highly-rehydratable instant sweet potato vermicelli retains 82.3% of nutrients, retains 86.4% of
anthocyanin, and meets needs of consumers on
nutrition and mouth feel.