%0 Journal Article %A ZHANG Yan-rong %A WEI Chun-guang %A CUI Hai-yue %A CHEN Xue %T Characterization and Property Analysis of Potato Dietary Fiber %D 2013 %R 10.7506/spkx1002-6630-201311005 %J FOOD SCIENCE %P 19-23 %V 34 %N 11 %X
Molecular weight and polymerization degree of potato dietary fiber were measured by viscosimetry and was characterized by infrared spectroscopy. Some properties of potato dietary fiber such as oil-holding capacity, water-hold capacity and expansion capability were determined. The results showed that the polymerization degree of potato dietary fiber was 1051, and molecular weight 170333. The dietary fiber had the characteristic absorption peaks for carbohydrates, such as C=O, C-H, COOR and free hydroxyl groups. Monosaccharide composition analysis showed the presence of pyran ring structure. Uronic acid and carboxylic acid dimer were found in soluble potato dietary fiber. Potato dietary fiber had an oilholding capacity of 1.90 g/g, a water-holding capacity of 7.00 g/g and swelling power of 7.37 mL/g, which indicated better properties than dietary fiber from corn and soybean bran with any functionalization treatments.
%U https://www.spkx.net.cn/EN/10.7506/spkx1002-6630-201311005