Utilization of stalk waste separated during processing of sun-dried figs (Ficus carica) as a source of pectin: Extraction and determination of molecular and functional properties

This study aimed the utilization of fig stalk waste as an alternative pectin source. For this purpose, characteristics extracted (SP) were compared with those citrus (CP) and from defected substandard whole sun-dried figs (FP). The SP had a higher extraction yield (11.7%) than FP (9.4%). galacturonic acid content degree esterification (32.3 50.1%) (19.9 38.8%), but lower CP (79.3 56.2%), respectively. different sugar compositions (d-glucose, l-rhamnose, d-galactose l-arabinose) weight average molecular weights, similar FTIR profiles. showed almost 1.9 1.6-fold Trolox equivalent antioxidant capacity (TEAC), 2.7 2.0-fold water absorption FP, at 3% (w/w) second highest viscosity after emulsion stability. Gels 1.75–3% range firmness, formed more fracturable gels CP. Sun-dried is better source figs. could be utilized to develop functional food textural rheological properties.