Comparison of fructose production by 37 cultivars of Jerusalem artichoke (Helianthus tuberosusL.)

Abstract

Improved culture of Jerusalem artichoke (Helianthus tuberosus L.) for the better production of fructose requires better performing cultivars. Analysis involving 37 cultivars originating from France or overseas showed that among the early cultivars studied, 'Grando' appear to be the richest with 193 mg/g fresh wt of dry matter (DM) and 508 mg/g DM of fructose (as fructan). For fructose production, among the late white cultivars analysed, 'Kharkov' gave the best performance with 179 mg/g fresh wt of DM, 531 mg/g DM of fructose, and 710 mg/g DM of total carbohydrates. The French cultivars 'Miello', 'Dub', and 'Rico' are considered in their group as the most productive with 549, 545, and 540 mg/g DM of fructose, respectively. H94079Resume La rentabilisation de la culture de Topinambour (Helianthus tuberosus L.) pour la production de fructose necessite le choix de varietes tres performantes. Pour cela, une analyse realisee sur 37 cultivars d'origine, Francaise ou etrangere a montre que: Parmi les cultivars precoces etudies, 'Grando' s'avereleplusricheavec 193 mg/g matiere fraiche (MF) de matiere seche (MS) et 508 mg/g MS de fructose. Pour la production de fructose, parmi les cultivars blancs tardifs analyses, le 'Kharkov' presente le plus d'interet avec 179 mg/g MF de MS, 531 mg/g MS de fructose et 710 mg/g MS de glucides totaux. Les cultivars Francais 'Meillo', 'Dubo' et 'Rico' sont consideres dans leur groupe comme etant les plus productifs avec respectivement 549, 545 et 540 mg/g MS de fructose.

Influence of NPK fertilisation and harvest date on agronomic performance of Jerusalem artichoke crop in the Guadiana Basin (Southwestern Spain)

“…These values show the high potential of JA for sustainable bioethanol production. The high potential of JA for sugars from tubers has also been shown by others (Curt et al, 2006;Baldini et al, 2004;Schorr-Galindo and Guiraud, 1997;Ben Chekroun et al, 1996;Barloy, 1988).…”

Genotypic variability and genotype by environment interactions for inulin content of Jerusalem artichoke germplasm

“…Therefore, high and low groups were clearly separated except for few accessions, but identification of Jerusalem artichoke accessions for high or low inulin content within high or low groups was difficult. Previous study in 37 cultivars of Jerusalem artichoke could identify the genotypes with high fructose content (Grando, Kharkov, C-122, Meillo and Dubo) (Ben Chekroun et al 1996). However, there accessions were not included in this study.…”

Helianthus tuberosus

“…Analysis involving 37 cultivars originating from France or overseas showed that among the early cultivars studied, 'Grando' appears to be the richest with 193 mg/g fresh wt of dry matter (DM) and 508 mg/g DM of fructose (as fructan) (Chekroun et al 1996 ). For fructose production, among the late white cultivars analysed, 'Kharkov' gave the best performance with 179 mg/g fresh wt of DM, 531 mg/g DM of fructose and 710 mg/g DM of total carbohydrates.…”

“…Groot Wassink and Fleming ( 1980 ) found that Kluyveromyces fragilis inulase (β-fructofuranosidase) to be a better alternative to Saccharomyces cerevisiae invertase presently used in industry for fermentation. H. tuberosus was used as a raw material for the production of motor fuel alcohol during the Second World War and had been sporadically used for this purpose until now (Chekroun et al 1996 ).…”