Gum yield, optimization of gum isolation, diosgenin and crude protein contents of fenugreek genotypes and cultivars grown under irrigated and dryland conditions

Fenugreek has high fiber content and many potential uses, such as an adhesive, and a stabilizer and an emulsifying agent to change food materials. This study investigated the gum ratio and yield, emulsion capacity and stability, and diosgenin and protein content of 18 fenugreek genotypes and three c...

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Bibliographic Details
Published inJournal of food composition and analysis Vol. 110; p. 104571
Main Authors Camlica, Mahmut, Yaldiz, Gulsum
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.07.2022
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Summary:Fenugreek has high fiber content and many potential uses, such as an adhesive, and a stabilizer and an emulsifying agent to change food materials. This study investigated the gum ratio and yield, emulsion capacity and stability, and diosgenin and protein content of 18 fenugreek genotypes and three cultivars cultivated under irrigated and dryland conditions. A wide range in the values of the samples traits was observed, including gum ratio (47.71–79.84%), gum yield (214.30–817.10 kg/ha), emulsion stability (84.62–100%), emulsion capacity (91.11–100%), diosgenin content (0.26–1.42%), and crude protein content (19.16–30.09%) under irrigated and dryland conditions. The PI 639185 and PI 660995 genotypes were superior, with the highest gum ratio and yield, and diosgenin content, compared with the other genotypes. In addition, the Berkem cultivar and PI 613633 genotype had the highest crude protein content. Fifteen correlations were found, positive or negative, and PCA analysis revealed 49.16% total variation. The fenugreek genotypes and cultivars were divided into two main groups; over 57% of the genotypes and 66% of the cultivars fell into the same group. The study suggested that the important genotypic variation for the properties of the examined fenugreek genotypes and cultivars may be utilized in developing new cultivars. [Display omitted] •Dryland conditions increased the gum yields of fenugreek genotypes.•Variation of diosgenin content was not related to the irrigated and dryland conditions.•Dryland conditions positively affected the production of protein in fenugreek seeds.•The best gum optimization was observed from the 90 °C temperature and 5 h time.•Dendrogram analysis revealed large variations among fenugreek genotypes and cultivars.
ISSN:0889-1575
1096-0481
DOI:10.1016/j.jfca.2022.104571