NOVEL FUNCTIONAL POMEGRANATE LEATHER REPLACEMENT WITH DEEP PURPLE CARROT F1 JUICE

Abstract

The objective of this work was to produce a healthy and acceptable natural product. Novel pomegranate leathers were prepared using four concentrations (5%, 10%, 15%, and 20%) of deep purple carrot F1 juice (DPCJ). Physiochemical and phytochemical parameters including total soluble solids, acidity, pH, non-enzymatic browning (NEB), chromatic coordinates ( L*, a* and b* ) as well as total color difference (ΔE), total sugar, total phenol (TP), total flavonoid (TF), anthocyanin, total carotene, and antioxidant activity were determined. The best phytochemical parameters and organoleptic characters were obtained from LPCR 10% and LPCR 15% (total phenol: 285.66, 314.00 mg/ g dw.; total flavonoid 26.57, 27.35mg/g dw.; total anthocyanin: 18.3, 22.00 mg/g dw. and carotene: 3.2, 3.4mg/g dw.) for replacement with 10% and 15% DPCJ, respectively. A high positive and significant correlation was observed between leathers bioactive components, total anthocyanin (r 2= 0.95), total phenol (r 2= 0.93), carotene (r 2= 0.93) as well as total flavonoids (r 2= 0.88) with DPPH. Based on the counts of microbial flora (bacteria, molds, and yeast), LPCR were considered microbiologically safe. The present work may help to solve the problem of color loss during the manufacture of pomegranate. Also the production of a novel natural product with high nutritional quality.