Bioactivity and Therapeutic Applications of Punica granatum L. Peel: Evidence and Prospects

Background: Inclination of the world towards natural and super foods has intended researchers and nutritionists to develop foods that are highly nutritious, feasible, eco-friendly along with immuno-boosting potential. Massive amounts of agro-industrial waste are generated across the world which can be turned-up into a functional ingredient by utilization and transformation of these wastes into wealth. An Indian balanced diet consists of foods from all food categories, with fruits and vegetables constituting one-fourth of the diet. Since ancient times, pomegranate (Punica granatum) and its various parts have been well-known for their therapeutic properties and delicious flavor. Worldwide approximately million tons of pomegranate peels are produced per annum which are a considerable source of vitamins, minerals, and numerous bioactive compounds such as phenolics, flavonoids (anthocyanins, flavonols, flavones) and tannins. Consequently, it has many health benefits, including antioxidative, anticancer, antidiabetic, anti-inflammatory, anti-microbial, antimutagenic, cardio-protective, hepato-protective, nephro-protective properties as well as it is also helpful in the prevention of many other chronic diseases. Its safety and efficacy for consumption have been proved by incorporating it in food products and industrial applications. The main aim of this review is to focus on the vital bioactive compounds present in pomegranate peel and their positive health benefits on human health.