A new approach for achievement of inulin accumulation in suspension cultures of Jerusalem artichoke (Helianthus tuberosus) using biotic elicitors

Taha, Hussein; El-Kawy, A.M. Abd; Fathalla, M.

doi:10.1016/j.jgeb.2012.02.002

Cited by 25 publications

(13 citation statements)

References 38 publications

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“…It is surprising that inulin content was obviously improved through Tv (90 mg L −1 ) and almost a 1.5‐fold increase (1713.19 ± 15.27 mg L −1 compared to control 1201.33 ± 2.25 mg L −1 ) was obtained. This result is consistent with the result from another fungus, Aspergillus niger , where inulinase activity in leaf cell cultures of H. tuberosus L. was increased . Ag is a heavy metal ion elicitor.…”

Section: Resultssupporting

confidence: 91%

Elicitation of Jerusalem artichoke (Helianthus tuberosus L.) cell suspension culture for enhancement of inulin production and altered degree of polymerisation

Dong

Wang

et al. 2016

J Sci Food Agric

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Section: Resultssupporting

confidence: 91%

Elicitation of Jerusalem artichoke (Helianthus tuberosus L.) cell suspension culture for enhancement of inulin production and altered degree of polymerisation

Dong

Wang

et al. 2016

J Sci Food Agric

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“…In addition, α-linolenic acid initates a signal cascade that stimulates the production of secondary metabolites involved in plant defense. A previous study reported that the defense hormone methyl-jasmonate plays a role in the biosynthesis and accumulation of inulin in Jerusalem artichoke [63]. Secondary metabolites with medicinal uses are derived from phenylalanine and are synthesized mainly in the root [64].…”

Section: Resultsmentioning

confidence: 99%

RNA-Seq Analysis and De Novo Transcriptome Assembly of Jerusalem Artichoke (Helianthus tuberosus Linne)

et al. 2014

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Jerusalem artichoke (Helianthus tuberosus L.) has long been cultivated as a vegetable and as a source of fructans (inulin) for pharmaceutical applications in diabetes and obesity prevention. However, transcriptomic and genomic data for Jerusalem artichoke remain scarce. In this study, Illumina RNA sequencing (RNA-Seq) was performed on samples from Jerusalem artichoke leaves, roots, stems and two different tuber tissues (early and late tuber development). Data were used for de novo assembly and characterization of the transcriptome. In total 206,215,632 paired-end reads were generated. These were assembled into 66,322 loci with 272,548 transcripts. Loci were annotated by querying against the NCBI non-redundant, Phytozome and UniProt databases, and 40,215 loci were homologous to existing database sequences. Gene Ontology terms were assigned to 19,848 loci, 15,434 loci were matched to 25 Clusters of Eukaryotic Orthologous Groups classifications, and 11,844 loci were classified into 142 Kyoto Encyclopedia of Genes and Genomes pathways. The assembled loci also contained 10,778 potential simple sequence repeats. The newly assembled transcriptome was used to identify loci with tissue-specific differential expression patterns. In total, 670 loci exhibited tissue-specific expression, and a subset of these were confirmed using RT-PCR and qRT-PCR. Gene expression related to inulin biosynthesis in tuber tissue was also investigated. Exsiting genetic and genomic data for H. tuberosus are scarce. The sequence resources developed in this study will enable the analysis of thousands of transcripts and will thus accelerate marker-assisted breeding studies and studies of inulin biosynthesis in Jerusalem artichoke.

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“…Jerusalem artichoke ( Helianthus tuberosus L.) is a perennial sunflower species with origins in central North America and has been grown in Europe since the 17th century (Taha et al . ). It has a lot of advantageous characteristics over traditionally grain crops, including high growth rate, good tolerance to frost, drought, salina, unfertile land and strong resistance to plant pest and diseases (Yang et al .…”

Section: Introductionmentioning

confidence: 97%

Comparative Effects of Three Different Drying Methods on Drying Kinetics and Quality of Jerusalem Artichoke (Helianthus tuberosus L.)

Antal

Tarek

Tarek-Tilistyák

et al. 2016

Journal of Food Processing and Preservation

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Mid-infrared-assisted freeze drying (MIR-FD) of Jerusalem artichoke cubes were attempted and their performance (processing time, energy consumption, color, water activity, hardness and rehydration) was compared with single-stage freeze dried (FD, control) samples. Two mathematical models could be used to describe the drying curves. It was aimed to improve the drying parameters and product quality of MIR-FD dried material. The effect of mid-infrared pre-drying (MIR) on drying rates of Jerusalem artichoke cubes was examined at different infrared intensity (3 and 6 kW/m 22 ). The values of drying rate considerably changed when the infrared intensity and pre-drying time was increased from 3 to 6 kW/m 22 and from 4 to 5 min. The MIR-FD hybrid drying mode took 15-40% lesser time compared to FD dried samples. Therefore, MIR-FD drying is an effective and economical method. MIR application had a significant (P < 0.05) effect on the color of the final product. The FD resulted in a product with significantly lower firmness and slightly higher water uptake (P < 0.05) than samples dried in the MIR-FD. Hybrid drying gave better results -all of the quality parameters -over MIR alone. PRACTICAL APPLICATIONSThe Jerusalem artichoke (Helianthus tuberosus L) is available in fresh and processed forms (powder, chips and soft drinks), the Jerusalem artichoke is rich in inulin, sugars, protein, macro and micro elements. Freeze-and mid-infrared drying have been industrially applied in the drying of foodstuffs and pharmaceutical products. The aim of this article is to examine the effectiveness of freeze drying (FD) enhanced with two-stage mid-infrared-freeze drying. The application of the mid-infrared-freeze drying (MIR-FD) produces a fast drying rate and higher drying quality. Our research work confirmed that MIR-FD is a good alternative instead of the FD. The development of new drying possibility for vegetables with good physical, chemical properties may be of interest in regard to the market supply (food supplement, functional food, etc.).

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A new approach for achievement of inulin accumulation in suspension cultures of Jerusalem artichoke (Helianthus tuberosus) using biotic elicitors

Cited by 25 publications

References 38 publications

Elicitation of Jerusalem artichoke (Helianthus tuberosus L.) cell suspension culture for enhancement of inulin production and altered degree of polymerisation

Elicitation of Jerusalem artichoke (Helianthus tuberosus L.) cell suspension culture for enhancement of inulin production and altered degree of polymerisation

RNA-Seq Analysis and De Novo Transcriptome Assembly of Jerusalem Artichoke (Helianthus tuberosus Linne)

Comparative Effects of Three Different Drying Methods on Drying Kinetics and Quality of Jerusalem Artichoke (Helianthus tuberosus L.)

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