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Changes in the primary and secondary metabolome of male green asparagus (Asparagus officinalis L.) as modulated by sequential harvesting
- Publication Year :
- 2021
-
Abstract
- Rising temperature and solar radiation drive the mobilization and depletion of crown-deposited metabolites harnessed for asparagus spear regeneration during the spring harvest season. We presently examined how successive same-season harvests impact the sensory, nutritive and bioactive composition of select green asparagus genotypes. Soluble carbohydrates were analyzed by HPLC-RI, organic acids and polyphenols by HPLC-DAD and metals by ion chromatography. Higher sugars and lower acids accentuated sweetness and lower polyphenols contributed to reduced astringency at the beginning of the harvest season. This trend was reversed as the season advanced and spear sensory quality was compromised by declining sugars and rising acids; however, functional quality improved as antioxidant capacity increased along with the concentrations of quercetin-3-O-rutinoside (rutin) and ascorbic acid. The compositional changes presently described were uniform across all genotypes examined and thus contribute toward our understanding of seasonal variation in the sensory and functional quality of this acclaimed health-promoting product.
- Subjects :
- Polyphenol
Rutin
Carbohydrates
Secondary Metabolism
Ascorbic Acid
Biology
01 natural sciences
Antioxidants
Analytical Chemistry
chemistry.chemical_compound
0404 agricultural biotechnology
Glucosides
Antioxidant activity
Metabolome
Asparagus
Ascorbate
Chromatography, High Pressure Liquid
Plant Proteins
Minerals
010401 analytical chemistry
food and beverages
Polyphenols
Agriculture
04 agricultural and veterinary sciences
General Medicine
Sweetness
biology.organism_classification
Ascorbic acid
040401 food science
0104 chemical sciences
Horticulture
chemistry
Taste
Officinalis
Cyprus
Composition (visual arts)
Quercetin
Asparagus Plant
Sugars
Organic acid
Food Science
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5c941cdbaad1ad64db7c69d964fa7a80