Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues

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Cynara cardunculus var. scolymus agroindustrial by-products (stems, outer bracts, leaves) constitute 80% of the plant. These by-products may be recovered for the extraction of food additives and nutraceuticals. In this research, the rheological behavior of soluble dietary fiber fractions isolated fr...

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Autores principales:	Domingo, C.S., Rojas, A.M., Fissore, E.N., Gerschenson, L.N.
Formato:	JOUR
Materias:	Cynara cardunculus Pectin and inulin Protease and hemicellulase Rheological behavior Additives Alkylation Enzymes Extraction Methylation Plants (botany) Polysaccharides Rheology Shear flow Shear thinning Sodium compounds Yield stress Agroindustrial by-product Degree of methylations Hemicellulases Rheological behaviors Shear thinning flow Soluble dietary fiber Fibers
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_14382377_v_n_p_Domingo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_14382377_v_n_p_Domingo
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spelling	todo:paper_14382377_v_n_p_Domingo2023-10-03T16:16:05Z Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues Domingo, C.S. Rojas, A.M. Fissore, E.N. Gerschenson, L.N. Cynara cardunculus Pectin and inulin Protease and hemicellulase Rheological behavior Additives Alkylation Enzymes Extraction Methylation Plants (botany) Polysaccharides Rheology Shear flow Shear thinning Sodium compounds Yield stress Agroindustrial by-product Cynara cardunculus Degree of methylations Hemicellulases Pectin and inulin Rheological behaviors Shear thinning flow Soluble dietary fiber Fibers Cynara cardunculus var. scolymus agroindustrial by-products (stems, outer bracts, leaves) constitute 80% of the plant. These by-products may be recovered for the extraction of food additives and nutraceuticals. In this research, the rheological behavior of soluble dietary fiber fractions isolated from bracts (B) and stems (S) of artichoke was studied. Fractions were isolated by means of a heat treatment followed by processing with sodium citrate buffer (S1, B1) or buffer/protease (S2, B2) or hemicellulase (S3, B3) or both enzymes (S4, B4). They were composed, mainly, by pectin (degree of methylation, DM ≤ 53%) and inulin. When dissolved in water (2.00% w/v) with Ca 2+ (40 mg/g pectin), fractions were sensitive to the ion showing shear thinning flow, with initial yield stress in the case of B2, B3 or S3. Citrate buffer extracted fractions (B1, S1) showed the highest viscosities, whereas extraction with buffer and both enzymes (B4, S4) produced the least viscous fiber fractions. At rest assays revealed the formation of gel-like networks that were stronger, in general, in the presence of higher pectin and inulin content, homogalacturonan proportion, and low methylation degree. Leftovers of artichoke can be used to extract soluble dietary fiber fractions that might be utilized as natural thickeners and gelling agents in foods, pharmaceutical and cosmetics, helping to add value to raw materials and to close the bioeconomy loop in relation to this plant. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14382377_v_n_p_Domingo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cynara cardunculus Pectin and inulin Protease and hemicellulase Rheological behavior Additives Alkylation Enzymes Extraction Methylation Plants (botany) Polysaccharides Rheology Shear flow Shear thinning Sodium compounds Yield stress Agroindustrial by-product Cynara cardunculus Degree of methylations Hemicellulases Pectin and inulin Rheological behaviors Shear thinning flow Soluble dietary fiber Fibers
spellingShingle	Cynara cardunculus Pectin and inulin Protease and hemicellulase Rheological behavior Additives Alkylation Enzymes Extraction Methylation Plants (botany) Polysaccharides Rheology Shear flow Shear thinning Sodium compounds Yield stress Agroindustrial by-product Cynara cardunculus Degree of methylations Hemicellulases Pectin and inulin Rheological behaviors Shear thinning flow Soluble dietary fiber Fibers Domingo, C.S. Rojas, A.M. Fissore, E.N. Gerschenson, L.N. Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
topic_facet	Cynara cardunculus Pectin and inulin Protease and hemicellulase Rheological behavior Additives Alkylation Enzymes Extraction Methylation Plants (botany) Polysaccharides Rheology Shear flow Shear thinning Sodium compounds Yield stress Agroindustrial by-product Cynara cardunculus Degree of methylations Hemicellulases Pectin and inulin Rheological behaviors Shear thinning flow Soluble dietary fiber Fibers
description	Cynara cardunculus var. scolymus agroindustrial by-products (stems, outer bracts, leaves) constitute 80% of the plant. These by-products may be recovered for the extraction of food additives and nutraceuticals. In this research, the rheological behavior of soluble dietary fiber fractions isolated from bracts (B) and stems (S) of artichoke was studied. Fractions were isolated by means of a heat treatment followed by processing with sodium citrate buffer (S1, B1) or buffer/protease (S2, B2) or hemicellulase (S3, B3) or both enzymes (S4, B4). They were composed, mainly, by pectin (degree of methylation, DM ≤ 53%) and inulin. When dissolved in water (2.00% w/v) with Ca 2+ (40 mg/g pectin), fractions were sensitive to the ion showing shear thinning flow, with initial yield stress in the case of B2, B3 or S3. Citrate buffer extracted fractions (B1, S1) showed the highest viscosities, whereas extraction with buffer and both enzymes (B4, S4) produced the least viscous fiber fractions. At rest assays revealed the formation of gel-like networks that were stronger, in general, in the presence of higher pectin and inulin content, homogalacturonan proportion, and low methylation degree. Leftovers of artichoke can be used to extract soluble dietary fiber fractions that might be utilized as natural thickeners and gelling agents in foods, pharmaceutical and cosmetics, helping to add value to raw materials and to close the bioeconomy loop in relation to this plant. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
format	JOUR
author	Domingo, C.S. Rojas, A.M. Fissore, E.N. Gerschenson, L.N.
author_facet	Domingo, C.S. Rojas, A.M. Fissore, E.N. Gerschenson, L.N.
author_sort	Domingo, C.S.
title	Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
title_short	Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
title_full	Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
title_fullStr	Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
title_full_unstemmed	Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
title_sort	rheological behavior of soluble dietary fiber fractions isolated from artichoke residues
url	http://hdl.handle.net/20.500.12110/paper_14382377_v_n_p_Domingo
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Rheological behavior of soluble dietary fiber fractions isolated from artichoke residues

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