ABSTRACT
Spray drying plays a vital role in the preservation of active ingredients in herbs, and therefore, the application of spray drying can assist in the development of advanced processes. The word “herb” is derived from the latin word herba, meaning grass, green stalks. Herbs refer to the usable parts of the plant that have culinary, cosmetic, or medicinal uses. Spray dryers are conventionally used in the herbal processing industries. The active ingredients in the herbal extract are spray dried to serve its purpose in its powder form. The steps involved in herb processing. Depending upon the partial or complete extraction of plant parts, different drying conditions are employed. The extraction method can be broadly classified into a conventional and a nonconventional method. The herbs are subjected to drying in air at room temperature. The herbal extracts obtained from leaves, roots, stem, and bark showed an antibacterial effect, which helped in preserving a wide variety of foods.
