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Citrus fruits are grown habitually and consumed fruit worldwide (Zou et al., 2016). The name “Citrus” is a generic term and belongs to the Rutaceae family. Table 2.1 describes the various citrus fruit genus and their common names (Sidana et al., 2013; Berk, 2016). Globally, citrus production in 2017 was around 92,088,000 metric tons that included 51.86% of oranges; 32.60% of tangerines, 7.20% of mandarins and 8.34% of grapefruit, respectively. As per US Department of Agriculture (USDA) data (2018), the depiction of citrus consumption is 68.44% while the remaining 21.51% is used for further processing. Approximately 18% of total citrus fruit varieties grown are reserved for industrial preparation, especially in the preparation and canning of juices (Zema et al., 2018a). Approximately 40–60% of the fruit parts are considered as waste, after consumption. Industrial processing of citrus fruits in the production of citrus products generates significant volumes of wastes like peel, pulp, and seed residues (Zema et al., 2018b; Balu et al., 2012; Satari and Karimi, 2018). Worldwide around 110–120 million tons of citrus waste generated from industries is the greatest challenge faced in the current scenario. Industrial citrus waste generated is creating pollution of land, underground water table, and is of great concern for wet/semi-solid waste management (Sharma et al., 2017). Approximately 45–60% of these fruit waste include peels, membranes, juice vesicles, and seeds. They can serve as beneficial sources for various products (Taghizadeh-Alisaraei, et al., 2017), which may enhance the economy of the citrus processing industries. It was noticed that the …