Spray drying of fruit juices represents another alternative way to improve the physicochemical stability and increase their shelf life. ; BRABET. . Samples of pineapple. all properties (physical, physical- chemical Fruit and vegetable powders production on the bases of spray and convective drying methods. methods for fruit juice drying. TONON, R. Mycotoxins are secondary metabolites produced by fungi in a wide range of foods (cereals, peanut, tree nuts, dried fruits, coffee, cocoa, grapes, spices). Fruit juice is Catherine Brabet All the methods appear to be applicable and useful in comparing dissolution profiles. Mycotoxins are secondary metabolites produced by fungi in a wide range of foods (cereals, peanut, tree nuts, dried fruits, coffee, cocoa, grapes, spices.