Browsing by Author "Wolde, Dereje"
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Item Comparison of Nutritional and Sensory Quality of Vegetables Grown on Aquaponics Technology and Conventional Produces(Addis Ababa University, 2019-06) Wolde, Dereje; Getachew, Paulos (PhD); Tadesse, Abebe (PhD)Aquaponics is one of a sustainable and alternative food production sector that integrates aquaCUlture with hydroponics. It is an emerg.ing part of aquaculture that uses the natural interaction between bacteria, fish and plants to change waste into clean water. Compared to soilbased agriculture and aquaculture production methods, aquaponics has many benefits including re-use of the wastewater from the growing fish, production of two commodities from a single system and expanded food production by urban residents. For the sustainability of aquaponics, the nutritional and sensory quality of the produces should be equivalent or better than the conventional produces. Thus, this study was aimed to compare the nutritional quality and customer preference of lettuce (Lacnlca sativa L.) and kale (Brassica carinata) grown on aquaponic system with that of conventionally grown in soil-based system. Proximate composition of lettuce and kale was determined using standard methods of AOAC and mineral content was determined by Inductively Coupled Plasma Optical Emision Spectroscopy. Sensory test was also determined by using discriminatory, preference and rating acceptance test methods. Accordingly, the aquaponic lettuce from Shewa Robit site had a significant (p