Abstract：
:In recent time the interest of industry increases particularly in processing and use of potato high amylopectin (AMP) starches. Therefore the plant breeders effort to obtain "waxy" potato cultivars with low amylose (AMS) content. In this four-year study sixteen potato cultivars grown on five experimental locations were evaluated on the percentage of AMS/AMP by enzymatic method, starch content by the underwater weight method, phosphorus (P) content in starch digests spectrophotometrically, and starch granule size determined by laser diffraction method. Between enzymatic and iodine-potassium iodide method good correlation has been revealed (r=0.71). The correlation analysis between AMS and P levels showed a clear negative correlation. For all measured parameters (starch, AMS, P, starch granule size) significant impact of cultivar has been determined. Location and year have lower, but significant impact. No statistically significant effect of year on AMS has been found. The cultivar Amado distinguished with the highest AMP and P contents and the cultivar Westamyl showed all positive values interesting for growers and processors.
journal_name
Food Chemjournal_title
Food chemistryauthors
Šimková D,Lachman J,Hamouz K,Vokál Bdoi
10.1016/j.foodchem.2013.06.080subject
Has Abstractpub_date
2013-12-15 00:00:00pages
3872-80issue
4eissn
0308-8146issn
1873-7072pii
S0308-8146(13)00857-1journal_volume
141pub_type
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