Concave Naturals

Fruit leather, also known as fruit bar or fruit slab, is a dehydrated fruity dietary product, which is mostly consumed as a snack or dessert. It is scrumptious, naturally low in fat and high in fibre and carbohydrates. Similarly, it is lightweight and can easily be stored and packed. Moreover, the fewer calories in fruit leather make it a healthy and nutritious snack.  Fruit leathers are prepared from fresh fruit pulp and different ingredients after an intricate process that involves a dehydration phase. They contain significant quantities of dietary fibers, carbohydrates, minerals, vitamins, and antioxidants.

Furthermore, most fresh fruits have a short harvest season and can easily be damaged when kept under refrigerated conditions; therefore, making fruit leather from fresh fruits is an effective way to preserve fruits. Fruit leathers are manufactured by dehydrating a fruit puree into a leather-shaped sheet, moisture is then removed from the moist purees, which are spread on a large flat tray until the fruit puree with additives changes into chewy sheets. There are large numbers of fruit leather products available on the market, such as mango leather, apricot fruit leather, grape leather, berry leather and many more.

Moreover, sun-drying has been the easiest method of drying foods for centuries. Dried apricots are examples of one of the most popular sun-dried fruits. Sun-drying allows the final product to have a fine appearance, colour and a sticky surface. However, there are disadvantages, such as the long drying method of the products depends on weather conditions. Therefore, alternative drying methods were introduced to overcome the problems of hygiene and time, as these methods are quick and safe. Modern dryers, such as tunnel dryers and forced air circulation cabinet dryers, have been used for making fruit leathers with better colour and flavour. Over 85% of industrial dryers are natural combustion gases used as the drying medium. The product modifies during drying, which includes shrinkage, puffing, and crystallization. Drying occurs from the vaporization of the liquid by supplying heat to the damp material. Other methods such as conduction (contact or indirect dryers), direct dryers and volumetrically placing the moist product in a microwave or radiofrequency electromagnetic fields are also different methods used in making fruit leathers. The selected procedures are dependent on the variety of fruit and the commercial conditions. In numerous methods, inaccurate drying processes result in irreparable damage to the quality of the final product, which makes the product hard to sell. With modern dehydrators and well-designed drying techniques, fruit leathers can be dried at any time of the year to fulfil the customers’ needs.

In the current growing market of fruit leathers, commercial packaging is quite essential. Packaging materials for fruit leather is required to prolong the shelf-life of the product, which links to the stability of water activity, microbiological stability, sensory properties, and physicochemical characteristics.

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