Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties

Sebastian Baur; Nicole Bellé; Hans Hausladen; Sebastian Wurzer; Laura Brehm; Timo D. Stark; Ralph Hücklhoven; Thomas Hofmann; Corinna Dawid

doi:10.1021/acs.jafc.2c02578

Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties

Sebastian Baur
, Nicole Bellé
, Hans Hausladen
, Sebastian Wurzer
, Laura Brehm
, Timo D. Stark
, Ralph Hücklhoven
, Thomas Hofmann
, Corinna Dawid^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Although domesticated potatoes contain a large variety of steroidal glycoalkaloids (SGAs) and saponins, in the past, many research projects mainly focused on the two major SGAs, α-solanine and α-chaconine. This study investigates the quantitative changes, induced by post-harvest LED light exposure, of six SGAs and four saponins in 12 potato cultivars at three different time points (1, 7, and 16 days), by using ultra-performance liquid chromatography tandem mass spectrometry. Altogether, SGA contents of 3.0-17.1 mg/100 g fresh weight (FW) could be observed in the analyzed tubers with potato varieties highly exceeding the newly discussed safety limit of 10 mg/100 g. The overall contents of 0.1-5.4 mg/100 g FW of the so far barely studied saponins, like protoneodioscin or barogenin-solatrioside, highly differed between the assayed potato cultivars. Furthermore, cultivar-specific regulations of SGAs and saponins could be observed due to light exposure.

Original language	English
Pages (from-to)	8300-8308
Number of pages	9
Journal	Journal of Agricultural and Food Chemistry
Volume	70
Issue number	27
DOIs	https://doi.org/10.1021/acs.jafc.2c02578
State	Published - 13 Jul 2022
Externally published	Yes

Keywords

abiotic stress
LC-MS/MS
potato
saponin
steroidal glycoalkaloid
α-chaconine
α-solanine

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10.1021/acs.jafc.2c02578

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Baur, S., Bellé, N., Hausladen, H., Wurzer, S., Brehm, L., Stark, T. D., Hücklhoven, R., Hofmann, T., & Dawid, C. (2022). Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties. Journal of Agricultural and Food Chemistry, 70(27), 8300-8308. https://doi.org/10.1021/acs.jafc.2c02578

@article{85045352436f4579ad040d85dbbf00e6,

title = "Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties",

abstract = "Although domesticated potatoes contain a large variety of steroidal glycoalkaloids (SGAs) and saponins, in the past, many research projects mainly focused on the two major SGAs, α-solanine and α-chaconine. This study investigates the quantitative changes, induced by post-harvest LED light exposure, of six SGAs and four saponins in 12 potato cultivars at three different time points (1, 7, and 16 days), by using ultra-performance liquid chromatography tandem mass spectrometry. Altogether, SGA contents of 3.0-17.1 mg/100 g fresh weight (FW) could be observed in the analyzed tubers with potato varieties highly exceeding the newly discussed safety limit of 10 mg/100 g. The overall contents of 0.1-5.4 mg/100 g FW of the so far barely studied saponins, like protoneodioscin or barogenin-solatrioside, highly differed between the assayed potato cultivars. Furthermore, cultivar-specific regulations of SGAs and saponins could be observed due to light exposure.",

keywords = "abiotic stress, LC-MS/MS, potato, saponin, steroidal glycoalkaloid, α-chaconine, α-solanine",

author = "Sebastian Baur and Nicole Bell{\'e} and Hans Hausladen and Sebastian Wurzer and Laura Brehm and Stark, \{Timo D.\} and Ralph H{\"u}cklhoven and Thomas Hofmann and Corinna Dawid",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors. Published by American Chemical Society.",

year = "2022",

month = jul,

day = "13",

doi = "10.1021/acs.jafc.2c02578",

language = "English",

volume = "70",

pages = "8300--8308",

journal = "Journal of Agricultural and Food Chemistry",

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Baur, S, Bellé, N, Hausladen, H, Wurzer, S, Brehm, L, Stark, TD, Hücklhoven, R, Hofmann, T & Dawid, C 2022, 'Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties', Journal of Agricultural and Food Chemistry, vol. 70, no. 27, pp. 8300-8308. https://doi.org/10.1021/acs.jafc.2c02578

TY - JOUR

T1 - Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties

AU - Baur, Sebastian

AU - Bellé, Nicole

AU - Hausladen, Hans

AU - Wurzer, Sebastian

AU - Brehm, Laura

AU - Stark, Timo D.

AU - Hücklhoven, Ralph

AU - Hofmann, Thomas

AU - Dawid, Corinna

PY - 2022/7/13

Y1 - 2022/7/13

N2 - Although domesticated potatoes contain a large variety of steroidal glycoalkaloids (SGAs) and saponins, in the past, many research projects mainly focused on the two major SGAs, α-solanine and α-chaconine. This study investigates the quantitative changes, induced by post-harvest LED light exposure, of six SGAs and four saponins in 12 potato cultivars at three different time points (1, 7, and 16 days), by using ultra-performance liquid chromatography tandem mass spectrometry. Altogether, SGA contents of 3.0-17.1 mg/100 g fresh weight (FW) could be observed in the analyzed tubers with potato varieties highly exceeding the newly discussed safety limit of 10 mg/100 g. The overall contents of 0.1-5.4 mg/100 g FW of the so far barely studied saponins, like protoneodioscin or barogenin-solatrioside, highly differed between the assayed potato cultivars. Furthermore, cultivar-specific regulations of SGAs and saponins could be observed due to light exposure.

AB - Although domesticated potatoes contain a large variety of steroidal glycoalkaloids (SGAs) and saponins, in the past, many research projects mainly focused on the two major SGAs, α-solanine and α-chaconine. This study investigates the quantitative changes, induced by post-harvest LED light exposure, of six SGAs and four saponins in 12 potato cultivars at three different time points (1, 7, and 16 days), by using ultra-performance liquid chromatography tandem mass spectrometry. Altogether, SGA contents of 3.0-17.1 mg/100 g fresh weight (FW) could be observed in the analyzed tubers with potato varieties highly exceeding the newly discussed safety limit of 10 mg/100 g. The overall contents of 0.1-5.4 mg/100 g FW of the so far barely studied saponins, like protoneodioscin or barogenin-solatrioside, highly differed between the assayed potato cultivars. Furthermore, cultivar-specific regulations of SGAs and saponins could be observed due to light exposure.

KW - abiotic stress

KW - LC-MS/MS

KW - potato

KW - saponin

KW - steroidal glycoalkaloid

KW - α-chaconine

KW - α-solanine

UR - https://www.scopus.com/pages/publications/85134426896

U2 - 10.1021/acs.jafc.2c02578

DO - 10.1021/acs.jafc.2c02578

M3 - Article

C2 - 35775364

AN - SCOPUS:85134426896

SN - 0021-8561

VL - 70

SP - 8300

EP - 8308

JO - Journal of Agricultural and Food Chemistry

JF - Journal of Agricultural and Food Chemistry

IS - 27

ER -

Quantitation of Toxic Steroidal Glycoalkaloids and Newly Identified Saponins in Post-Harvest Light-Stressed Potato (Solanum tuberosum L.) Varieties

Abstract

Keywords

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