Harvest Time Influences Inulin and Phenolic Accumulation of Globe Artichoke (Cynara cardunculus L.).
7 affiliations
- 1Centre for Crop and Food Innovation, Food Futures Institute Murdoch University Perth Western Australia Australia.
- 2School of Medical, Molecular and Forensic Sciences Murdoch University Perth Western Australia Australia.
- 3School of Agricultural Sciences Murdoch University Perth Western Australia Australia.
- 4Mt Lindesay Scotsdale Western Australia Australia.
- 5Australian National Phenome Centre, Health Futures Institute Murdoch University Perth Western Australia Australia.
- 6School of Mathematics, Statistics, Chemistry and Physics Murdoch University Perth Western Australia Australia.
- 7Centre for Computational and Systems Medicine, Health Futures Institute Murdoch University Perth Western Australia Australia.
Abstract
The influence of harvest time on globe artichoke (Cynara cardunculus L.) inulin and phenolics was investigated to inform selection of superior lines with improved nutritional quality. Lines of unknown genetics were harvested early, middle or late in the growing season. Inflorescence size and edible portion (EP) yield, fructan content, including inulin-type fructans, inulin profile, phenolic concentrations, color change (browning) after cutting and polyphenol oxidase activity were measured. Early harvested artichokes developed larger inflorescences (average 248.3 g) compared to late harvested artichokes (average 178.5 g) and had higher mean total phenolic concentrations (TPC) (8.67 g kg⁻¹) in the EP. Late harvest artichokes had higher mean fructan concentrations (61.56 g kg⁻¹ fresh weight) and higher mean yield of EP (54.9%) compared to early harvest artichokes (36.1%). Inulin concentration was positively correlated with mean daily solar radiation exposure, while phenolic concentration was negatively correlated. The CIE b* value (yellowness) of the artichoke receptacle immediately after cutting was significantly, positively correlated with the TPC, chlorogenic acid, and dicaffeoylquinic acid isomer (DiCQA) concentrations. The rate and intensity of polyphenol oxidase-mediated browning after cutting was correlated with phenolic concentrations, with DiCQA having the strongest association. This research demonstrates the potential benefits of evaluating a wide range of variables to select superior artichoke lines with improved nutritional quality.
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BibTeX
@article{tilley2026harvest,
title = {{Harvest Time Influences Inulin and Phenolic Accumulation of Globe Artichoke (Cynara cardunculus L.).}},
author = {Andrew Tilley and Mark P McHenry and Julia Anwar McHenry and Yimin Wang and Soudabeh Shemesavar and Malgorzata Kowalczyk and Ruey Leng Loo and Kirsty L Bayliss and Vicky A Solah},
journal = {Food science \& nutrition},
year = {2026},
month = oct,
doi = {10.1002/fsn3.72490},
url = {https://europepmc.org/article/MED/42948280},
note = {CC BY},
}
RIS
TY - JOUR
TI - Harvest Time Influences Inulin and Phenolic Accumulation of Globe Artichoke (Cynara cardunculus L.).
AU - Andrew Tilley
AU - Mark P McHenry
AU - Julia Anwar McHenry
AU - Yimin Wang
AU - Soudabeh Shemesavar
AU - Malgorzata Kowalczyk
AU - Ruey Leng Loo
AU - Kirsty L Bayliss
AU - Vicky A Solah
PY - 2026
DA - 2026/10/27
JO - Food science & nutrition
DO - 10.1002/fsn3.72490
UR - https://europepmc.org/article/MED/42948280
AB - The influence of harvest time on globe artichoke (Cynara cardunculus L.) inulin and phenolics was investigated to inform selection of superior lines with improved nutritional quality. Lines of unknown genetics were harvested early, middle or late in the growing season. Inflorescence size and edible portion (EP) yield, fructan content, including inulin-type fructans, inulin profile, phenolic concentrations, color change (browning) after cutting and polyphenol oxidase activity were measured. Early harvested artichokes developed larger inflorescences (average 248.3 g) compared to late harvested artichokes (average 178.5 g) and had higher mean total phenolic concentrations (TPC) (8.67 g kg⁻¹) in the EP. Late harvest artichokes had higher mean fructan concentrations (61.56 g kg⁻¹ fresh weight) and higher mean yield of EP (54.9%) compared to early harvest artichokes (36.1%). Inulin concentration was positively correlated with mean daily solar radiation exposure, while phenolic concentration was negatively correlated. The CIE b* value (yellowness) of the artichoke receptacle immediately after cutting was significantly, positively correlated with the TPC, chlorogenic acid, and dicaffeoylquinic acid isomer (DiCQA) concentrations. The rate and intensity of polyphenol oxidase-mediated browning after cutting was correlated with phenolic concentrations, with DiCQA having the strongest association. This research demonstrates the potential benefits of evaluating a wide range of variables to select superior artichoke lines with improved nutritional quality.
SN - 2048-7177
ER -