Abstract
ABSTRACTThis research investigated the nutritional and antioxidant composition of tomato processing waste with the aim to enable the development of new alternatives for the recycling of this by-product. The samples of dried tomato waste were found to contain 176.2 g/kg protein, 21.9 g/kg fat, 524.4 g/kg crude fiber and 42.1 g/kg ash. The essential amino acids represented 34.2% of total protein, the most abundant being leucine, followed by lysine and isoleucine. Unsaturated fatty acids represent 77.04% of the total fatty acids, linoleic being the major one. The results confirmed that dried tomato wastes contain considerable amounts of lycopene (510.6 mg/kg) and β-carotene (95.6 mg/kg) and exhibited good antioxidant properties. Total phenolics showed average contents of 1229.5 mg GAE/kg, of which flavonoids accounted for 415.3 mg QE/kg. Ellagic and chlorogenic acids were the most abundant phenolic acids while among flavonoids only rutin and myricetin were quantified.
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