The effects of Ca2+ (0–75 mg/g pectin) and sucrose (0–40%, w/w) or sweeteners (0.1, 0.05% stevia saccharin) pH (3.0, 4.5, 6.8) on the rheological properties gels formed with sunflower pectins purified by conventional method (Conv-pectin), microfiltration (MF-pectin) ultrafiltration (UF-pectin) were investigated. main objective was to develop alternative low-calorie pectin without altered gelati...