Raspberry Juice Powder Processing
The species is Rubus idaeus L., the European red raspberry, a perennial cane shrub of the rose family (Rosaceae). Several look-alikes appear under similar names. The black raspberry, Rubus occidentalis, is a separate North American species with darker, more strongly pigmented fruit, and the Chinese Rubus chingii is a traditional medicinal fruit with a different use. Blackberries belong to other Rubus species and have a different flavor and color. The part used is the ripe fruit.
The raw material is raspberry juice concentrate. Berries are crushed and pressed, and the juice is clarified or lightly cloudy, concentrated and blended with maltodextrin before atomization in a spray dryer. The carrier makes the powder soluble and free-flowing and mellows the sharp acid of the pure juice.
Raspberries are fragile and perishable, and they mold within days of picking, so juice is pressed from fruit that is frozen soon after harvest. Frozen storage keeps the pigment and aroma intact until pressing, and the powder reflects the berry at its peak.
Summer-fruiting and autumn-fruiting cultivars both exist, and the fruit is delicate enough that it is usually picked by hand and chilled quickly. Frozen storage fixes the berry at peak ripeness, and pressing then happens at the processor on thawed fruit, which gives juice consistent in color and acid across the year.












