Effect of growing technology on acrylamide precursor content in potato tubers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60109807%3A_____%2F18%3AN0000065" target="_blank" >RIV/60109807:_____/18:N0000065 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effect of growing technology on acrylamide precursor content in potato tubers

Original language description

In three-year field trials reducing sugar (RS) and asparagine (Asn) content was measured in raw potatoes, and fried chips. Three varieties for chips production were involved into the trial. These varieties were bred for low accumulation of RS during storage: Pirol (medium early German variety), Lady Claire (medium early Dutch variety), Crispy (medium early Dutch variety). Fertilization variants involved nitrogen and sulphur levels, following rates were used: 40 kg N/ha (N1), 160 kg N/ha (N2), 40 kg N/ha + 40 kg S/ha (NS1),160 kg N/ha + 40 kg S/ha (NS2). RS content was statistically affected by year and variety. In dry and warm year the lowest RS content was determined. All studied factors, i.e. year and also variety and fertilization variants had a statistical important effect on Asn content. The relation of Asn and year is opposite than for RS, significantly the highest content was found in year with highest rainfall deficit. The results indicate tendency to higher Asn and also acrylamide contents with increased rates of nitrogen fertilizers. Sulphur fertilizer did not positively influence decrease of Asn content as referred several data from literature. Based on trial results the relation was calculated between acrylamide precursors and acrylamide final content in fried chips. Whereas in case of RS content linear dependence was confirmed, in case of Asn content did not detect any dependence.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů