The invention discloses a preparation technology for composite
powder of
navel oranges and Chinese gooseberries, which comprises the following steps of: firstly, extracting the
polyphenol substances of the
navel orange peels, washing fresh and complete
navel oranges and Chinese gooseberries by water, respectively peeling and
cutting into slices with thickness of 5-10mm, respectively adding the
polyphenol substances of the
navel orange peels, and filtrating by a filter screen after being pulped and crushed; secondly, respectively obtaining
navel orange juice and Chinese gooseberry juice; mixing the
navel orange juice and the Chinese gooseberry juice to obtain the mixed normal juice of navel oranges and Chinese gooseberries according to the volume ratio of 5:1-10:5, adding
maltodextrin into the concentrated mixed juice, freezing and
drying the processed mixed normal juice of navel oranges and Chinese gooseberries in vacuum so as to obtain freeze-
dried fruit powder, and mixing with white granulated
sugar powder; and thirdly, obtaining the composite powder of navel oranges and Chinese gooseberries. According to the invention, the
plant active ingredient polyphenols are extracted from the
processing waste, namely the navel orange peels, so that the
nutrient Vc (
Vitamin C) is protected, the loss of the nutrients is prevented in the
processing procedure, and the nutrients and flavour of the mixed juice are more completely stored.