Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage

Inulin is accumulated as a reserve carbohydrate in the roots and tubers of many plants belonging to the Asteraceae family. At present, most of the inulin for nutraceutical purposes is produced from Jerusalem artichoke (Helianthus tuberosus L.) and Chicory (Cichorium intybus L.), and cardoon is prove...

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Main Authors: Vincenzo Alfano, Walter Stefanoni, Francesco Latterini, Federico Liuzzi, Isabella De Bari, Egidio Viola, Anna Ciancolini, Luigi Pari
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2022.834443/full
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author Vincenzo Alfano
Walter Stefanoni
Francesco Latterini
Federico Liuzzi
Isabella De Bari
Egidio Viola
Anna Ciancolini
Luigi Pari
author_facet Vincenzo Alfano
Walter Stefanoni
Francesco Latterini
Federico Liuzzi
Isabella De Bari
Egidio Viola
Anna Ciancolini
Luigi Pari
author_sort Vincenzo Alfano
collection DOAJ
description Inulin is accumulated as a reserve carbohydrate in the roots and tubers of many plants belonging to the Asteraceae family. At present, most of the inulin for nutraceutical purposes is produced from Jerusalem artichoke (Helianthus tuberosus L.) and Chicory (Cichorium intybus L.), and cardoon is proved to synthetize and store a high quantity of inulin in roots. Inulin in the roots of cardoon reaches the maximum content before the beginning of flowers formation in May. Due to the limited favorable period for harvesting the roots, storage plays a key role in the supply chain. The complete drying of cardoon roots before the storage has been proved to prevent the degradation of inulin up to 6 months of storage. Because drying is a costly operation, in the present study, energy-saving and the effect on percentage inulin content in cardoon roots dried at different moisture contents before storage were assessed. From 48.2% inulin retrievable at the beginning of the investigated period (100% dry matter), after 1 month of storage, about 2% reduction was recorded on average in H0 and H12.5 treatments, while about 10% reduction was shown (with no statistical differences) in treatments at higher moisture contents (TQ, H50, and H25). These values remained constant until the end of storage, except for TQ treatment, where inulin content decreased progressively up to 38.7% w/w. From an economic point of view, limiting the drying time and storing roots at a moisture content higher than 0% leads to an income loss of 2,000–3,000 €/t of roots. Therefore, full drying is the most cost-effective solution in the optic of producing the highest possible amount of inulin and could be avoided just in the case of immediate roots extraction and processing in a few days.
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spelling doaj.art-2da7b32b527a41ce93a7e76e8c13c7672022-12-22T02:22:10ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-04-011010.3389/fenrg.2022.834443834443Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month StorageVincenzo Alfano0Walter Stefanoni1Francesco Latterini2Federico Liuzzi3Isabella De Bari4Egidio Viola5Anna Ciancolini6Luigi Pari7Consiglio per la Ricerca in Agricoltura e l’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, Monterotondo, ItalyConsiglio per la Ricerca in Agricoltura e l’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, Monterotondo, ItalyConsiglio per la Ricerca in Agricoltura e l’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, Monterotondo, ItalyENEA Centro Ricerche Trisaia, Rotondella, ItalyENEA Centro Ricerche Trisaia, Rotondella, ItalyENEA Centro Ricerche Trisaia, Rotondella, ItalyNOVAMONT SpA, Novara, ItalyConsiglio per la Ricerca in Agricoltura e l’analisi dell’Economia Agraria (CREA)-Centro di Ricerca Ingegneria e Trasformazioni Agroalimentari, Monterotondo, ItalyInulin is accumulated as a reserve carbohydrate in the roots and tubers of many plants belonging to the Asteraceae family. At present, most of the inulin for nutraceutical purposes is produced from Jerusalem artichoke (Helianthus tuberosus L.) and Chicory (Cichorium intybus L.), and cardoon is proved to synthetize and store a high quantity of inulin in roots. Inulin in the roots of cardoon reaches the maximum content before the beginning of flowers formation in May. Due to the limited favorable period for harvesting the roots, storage plays a key role in the supply chain. The complete drying of cardoon roots before the storage has been proved to prevent the degradation of inulin up to 6 months of storage. Because drying is a costly operation, in the present study, energy-saving and the effect on percentage inulin content in cardoon roots dried at different moisture contents before storage were assessed. From 48.2% inulin retrievable at the beginning of the investigated period (100% dry matter), after 1 month of storage, about 2% reduction was recorded on average in H0 and H12.5 treatments, while about 10% reduction was shown (with no statistical differences) in treatments at higher moisture contents (TQ, H50, and H25). These values remained constant until the end of storage, except for TQ treatment, where inulin content decreased progressively up to 38.7% w/w. From an economic point of view, limiting the drying time and storing roots at a moisture content higher than 0% leads to an income loss of 2,000–3,000 €/t of roots. Therefore, full drying is the most cost-effective solution in the optic of producing the highest possible amount of inulin and could be avoided just in the case of immediate roots extraction and processing in a few days.https://www.frontiersin.org/articles/10.3389/fenrg.2022.834443/fullCynara cardunculus L.supply chainbiomassbioeconomydryingcircular economy
spellingShingle Vincenzo Alfano
Walter Stefanoni
Francesco Latterini
Federico Liuzzi
Isabella De Bari
Egidio Viola
Anna Ciancolini
Luigi Pari
Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
Frontiers in Energy Research
Cynara cardunculus L.
supply chain
biomass
bioeconomy
drying
circular economy
title Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
title_full Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
title_fullStr Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
title_full_unstemmed Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
title_short Inulin Content in Chipped Roots of Cardoon Stored at Different Initial Moisture Contents After Six-Month Storage
title_sort inulin content in chipped roots of cardoon stored at different initial moisture contents after six month storage
topic Cynara cardunculus L.
supply chain
biomass
bioeconomy
drying
circular economy
url https://www.frontiersin.org/articles/10.3389/fenrg.2022.834443/full
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