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