Determination of the glycoalkaloids α-solanine and α-chaconine levels in 18 varieties of potato (Solanum tuberosum L.) grown in Oman

Elsadig A. Eltayeb, Sana Salem Al-Sinani, I. A. Khan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The glycoalkaloid content in 18 potato varieties grown in Oman was measured by HPLC using peel and flesh tissues. The total glycoalkaloid content of the tubers was found to be variety dependent and varied greatly between the 18 varieties. The total glycoalkaloid in the tubers of seven varieties was within the safe limit of ≤200 mg kg-1 FW recommended for food safety, whereas the remaining 11 varieties exceeded this upper limit. The principal glycoalkaloids α-chaconine and α-solanine were present in higher concentration in the peel than in the flesh of all varieties with the former being the principal alkaloid in the peel. The flesh of all of the 18 potato varieties contained total glycoalkaloid levels lower than the upper safety limit. The leaves of the 18 potato varieties were also analyzed for glycoalkaloids. The levels of glycoalkaloids in expanding leaves were higher than that of expanded leaves with the exception of six varieties. The principal glycoalkaloid in expanding and expanded leaves was α-chaconine. No correlation was observed between the glycoalkaloids levels of in the leaves and tubers.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalPotato Research
Volume46
Issue number1-2
Publication statusPublished - 2005

Fingerprint

Solanine
alpha-chaconine
Oman
solanine
glycoalkaloids
Solanum tuberosum
potatoes
Food Safety
Alkaloids
tubers
High Pressure Liquid Chromatography
leaves
Safety
food safety
alkaloids

Keywords

  • Chaconine
  • Glycoalkaloids
  • HPLC
  • Potato
  • Solanine
  • Solanum tuberosum

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Determination of the glycoalkaloids α-solanine and α-chaconine levels in 18 varieties of potato (Solanum tuberosum L.) grown in Oman. / Eltayeb, Elsadig A.; Al-Sinani, Sana Salem; Khan, I. A.

In: Potato Research, Vol. 46, No. 1-2, 2005, p. 57-66.

Research output: Contribution to journalArticle

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