Gold kiwifruit pomace extracted using citric acid, water and enzyme (Celluclast 1.5L) were studied in
terms of pectin yield, protein, ash, non-starch polysaccharide, galacturonic acid (GalA), neutral sugar
composition, molar mass (Mw), viscosity and degree of branching. Water-extracted pectin was considered
closest to its native form. Enzyme extracted pectin showed the highest yield (4.5% w/w) as compared
with the acid and water extraction methods (3.6–3.8% w/w). Pectin obtained from different extraction
methods showed different degree of branching. The Mw and root mean square (RMS) radius varied with
the extraction methods with values of 8.4 105 g/mol and 92 nm, 8.5 105 g/mol and 102 nm,
6.7 105 g/mol and 52 nm for acid, water and enzymatic extraction methods, respectively. Similar trend
was observed for pectin viscosity, with water-extracted pectin giving a slightly higher viscosity followed
by acid and enzyme-extracted pectin. This study showed that gold kiwifruit pomace pectin has potential
application in food products.