Laboratory of Food Chemistry, Wageningen University and Research Centre, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
Food and Biobased Research, Wageningen University and Research Centre, The Netherlands.
Carbohydr Polym. 2014 Nov 26;113:256-63. doi: 10.1016/j.carbpol.2014.07.019. Epub 2014 Jul 17.
During the industrial extraction of starch from potatoes (Seresta), some starch remains within undisrupted potato cells in the fibrous side-stream. The aim of this study was to investigate if enzymatic degradation of cell wall polysaccharides (CWPs) can enhance starch recovery and lower the water holding capacity (WHC) of the "fibre" fraction. The use of a pectinase-rich preparation recovered 58% of the starch present in the "fibre" fraction. Also, the "fibre" fraction retained only 40% of the water present in the non-enzyme treated "fibre". This was caused by the degradation of pectins, in particular arabinogalactan side chains calculated as the sum of galactosyl and arabinosyl residues.
在从土豆（Seresta）中工业提取淀粉的过程中，一些淀粉仍然存在于纤维侧流中未被破坏的土豆细胞内。本研究的目的是研究酶解细胞壁多糖（CWPs）是否可以提高淀粉回收率并降低“纤维”级分的持水力（WHC）。使用富含果胶酶的制剂可回收“纤维”级分中存在的 58％的淀粉。此外，“纤维”级分仅保留了未经酶处理的“纤维”中存在的 40％的水。这是由于果胶的降解引起的，特别是阿拉伯半乳聚糖侧链，其计算为半乳糖基和阿拉伯糖残基的总和。
