Methodology for glycoalkaloid analysis

Coxon, David T.

doi:10.1007/bf02854037

Cited by 33 publications

(14 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier estimates of glycoalkaloid concentrations using colorimetric techniques have been criticised since results vary widely (> 50%) between authors (Coxon 1984). The colorimetric technique of Baker et ul (1955) employed by Baerug (1962) could be faulted because the relationship between concentration and colour deviated from a straight line (Baker et a1 1955).…”

Section: Desireementioning

confidence: 98%

Glycoalkaloid Concentration of Potato Tubers Following Exposure to Daylight

Percival

Dixon

Sword

1996

J. Sci. Food Agric.

View full text Add to dashboard Cite

The total glycoalkaloid concentrations in white‐ (cv Pentland Hawk), pink‐ (cv Kerrs Pink) and red‐ (cv Desiree) skinned potato tubers were measured following 21 days exposure to daylight using high‐performance liquid chromatography. Average daytime irradiance during this period was 232 μmol m−2 s−1. Regardless of cultivar, glycoalkaloid concentrations were increased after light exposure compared with initial concentrations. Glycoalkaloid concentrations fluctuated with time and continuous accumulation of glycoalkaloids with time was not demonstrated. Glycoalkaloid synthesis was maximal in the sequence cv Kerrs Pink

show abstract

Section: Desireementioning

confidence: 98%

Glycoalkaloid Concentration of Potato Tubers Following Exposure to Daylight

Percival

Dixon

Sword

1996

J. Sci. Food Agric.

View full text Add to dashboard Cite

show abstract

“…It consists of three steps: (1) extraction of all the compounds of interest; (2) elimination, if necessary, of all interfering species; and finally (3) determination of the specific analyte concentration [3,6]. There are some analytical methods modified by including more steps, such as derivatisation or hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Application of enzyme field effect transistors for fast detection of total glycoalkaloids content in potatoes

Arkhypova

Dzyadevych

Солдаткин

et al. 2004

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

“…The analysis of SGAs is complicated due to heterogeneity and lack of suitable chromophore (Coxon, 1984;Plhak and Sporns, 1994). More than 80 SGAs possessing the C,,-skeleton have been described in the genus Solanum and new SGAs are still being reported (Van Gelder, 1991).…”

Section: Discussionmentioning

confidence: 99%

Potato Glycoalkaloids: A Burden or a Blessing?

Valkonen

Keskitalo²,

Vasara

et al. 1996

Critical Reviews in Plant Sciences

110

View full text Add to dashboard Cite

Steroidal glycoalkaloids (SGAs) are produced following the general steroid biosynthesis pathway, starting from acetyl-coenzyme A and followed by the intermediates mevalonic acid, squalene, cycloartenol, and cholesterol. a-Chaconine and a-solanine are the main SGAs of the cultivated potato (Solanurn tuberosum), whereas many other SGAs are known in the wild potato species. Low concentrations of SGAs improve the taste of potato, but concentrations greater than 200 mgkg can have toxic effects on animals and humans. SGAs have antimicrobial activity and confer resistance to some insects, but many such pests of potato are not greatly affected. Certain environmental conditions and wounding enhance SGA accumulation in tubers in the field and storage. Low production of SGAs is a dominant character inherited in a relatively simple manner and can be selected for in potato-breeding programs, whereas the use of wild potato germplasm tends to increase the SGA accumulation in the breeding lines. Further efforts are likely to be directed toward the reduction of the SGA content in the edible potato products through breeding and biotechnological methodologies, whereas potato genotypes with high SGA production may be developed for use in the pharmaceutical industry.

show abstract

Methodology for glycoalkaloid analysis

Cited by 33 publications

References 34 publications

Glycoalkaloid Concentration of Potato Tubers Following Exposure to Daylight

Glycoalkaloid Concentration of Potato Tubers Following Exposure to Daylight

Application of enzyme field effect transistors for fast detection of total glycoalkaloids content in potatoes

Potato Glycoalkaloids: A Burden or a Blessing?

Contact Info

Product

Resources

About