PJB-2019-446
Composition and nutritive value of Tunisian carob (Ceratonia siliqua L.) kernels and gum
Souheila Naghmouchi
Abstract
Twelve Tunisian carob populations belonging to different sites were assessed for their variation based on biochemical composition and nutritive value of crude locust bean gum using moisture, ash, pH, protein, acid insoluble matter, fibre, total phenols, sugars contents and viscosity of crude and purified locust bean gum, the rheological behaviour of the purified and crude bean gum is also assessed. The crude LBG average over all populations was 80.3 g kg -1 moisture, 0.27 g kg -1 ash, 1.72 g kg -1 protein, 1.05 g kg -1 acid-insoluble matter, 6.02 pH, 3.5 Neutral Detergent Fibre, 0.99 Acid Detergent Fibre, 1.68 g kg -1 phenols, and 4.02 mannose/galactose ratios. The best rheological properties were noted for populations from Sliman, Ain Essobh, Khnis and Sayada. There were significant differences of carob kernels and gum composition among populations. The biochemical and physical analysis confirm the nutritional and medicinal value of carob.
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