Impact of Cultivation Method and Cultivar Selection on Soluble Carbohydrates and Pungent Principles in Onions ( Allium cepa L.).
J Agric Food Chem
; 66(48): 12827-12835, 2018 Dec 05.
Article
en En
| MEDLINE
| ID: mdl-30460843
The composition of soluble carbohydrates such as fructooligosaccharides (FOS) in onions ( Allium cepa L.) plays a role regarding their digestibility, long-term storability, and processability. Qualitative and quantitative profiles of soluble carbohydrates were determined in 23 different onion samples comprising 20 cultivars grown at two different locations in 2014 and 2015. FOS concentrations were 1.1-fold higher in set grown onions than in seed grown onions ( p = 0.001). FOS levels of dehydrator cultivars were higher (overall average: 130.8 ± 42.4 g/L FOS) than those of common set and seed (61.8 ± 20.0 and 29.4 ± 14.7 g/L FOS) grown cultivars. Consequently, cultivation method (seed vs. set planting) and cultivar selection were crucial when aiming at onions with defined FOS contents. Besides FOS and other carbohydrate-related parameters, levels of alk(en)yl cysteine sulfoxides, indicating onion oil yield and pungency of onions, were determined to be different in dehydrator onions (13.1 ± 2.6 µmol/mL), seed (8.4 ± 1.3 µmol/mL), and set grown onions (7.5 ± 1.6 µmol/mL).
Palabras clave
Allium cepa L.; FODMAP; FOS; IBS; alk(en)yl cysteine sulfoxides; carbohydrates; cultivation method; dietary fiber; fermentable disaccharides; fermentable monosaccharides; fermentable oligosaccharides; fermentable polyols; fructooligosaccharides; fructose; irritable bowel syndrome; pungency; pyruvic acid; seed onions; set onions
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Carbohidratos
/
Cebollas
/
Aromatizantes
/
Producción de Cultivos
Tipo de estudio:
Evaluation_studies
/
Qualitative_research
Idioma:
En
Revista:
J Agric Food Chem
Año:
2018
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Estados Unidos