Structural features and water holding capacities of pressed potato fibre polysaccharides

U. Ramasamy; M.A. Kabel; H.A. Schols; H. Gruppen

doi:10.1016/j.carbpol.2012.12.057

Structural features and water holding capacities of pressed potato fibre polysaccharides

U. Ramasamy, M.A. Kabel, H.A. Schols, H. Gruppen

Research output: Contribution to journal › Article › Academic › peer-review

35 Citations (Scopus)

Abstract

Pressed potato fibre (PPF) has a high water holding capacity (WHC) affecting its processing as an animal feed. The aim of this study was to characterize cell wall polysaccharides (CWPs) in PPF and investigate their WHC. This was done via sequential extractions. Half of all CWPs were recovered in the hot buffer soluble solids extract as pectins (uronic acid and rhamnose) and galactans wherein most pectins (76%) from PPF were water soluble. Most likely, the network of CWPs is loosened during processing of potatoes. PPF showed a WHC of 7.4 expressed as the amount of water held per g of dry matter (mL/g). Reconstituting hot buffer soluble solids with buffer insoluble solids in water gave a WHC comparable to that of PPF. Removal of alkali soluble solids, which mainly comprised xyloglucans, lowered the WHC of the final residue. The results indicated that interactions between CWPs could affect the WHC of PPF.

Original language	English
Pages (from-to)	589-596
Journal	Carbohydrate Polymers
Volume	93
Issue number	2
DOIs	https://doi.org/10.1016/j.carbpol.2012.12.057
Publication status	Published - 2013

Keywords

cell-wall material
sugar-beet pulp
solanum-tuberosum
nonstarch polysaccharides
aspergillus-aculeatus
nmr characterization
purification
xyloglucan
methylation
conversion

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10.1016/j.carbpol.2012.12.057

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title = "Structural features and water holding capacities of pressed potato fibre polysaccharides",

abstract = "Pressed potato fibre (PPF) has a high water holding capacity (WHC) affecting its processing as an animal feed. The aim of this study was to characterize cell wall polysaccharides (CWPs) in PPF and investigate their WHC. This was done via sequential extractions. Half of all CWPs were recovered in the hot buffer soluble solids extract as pectins (uronic acid and rhamnose) and galactans wherein most pectins (76%) from PPF were water soluble. Most likely, the network of CWPs is loosened during processing of potatoes. PPF showed a WHC of 7.4 expressed as the amount of water held per g of dry matter (mL/g). Reconstituting hot buffer soluble solids with buffer insoluble solids in water gave a WHC comparable to that of PPF. Removal of alkali soluble solids, which mainly comprised xyloglucans, lowered the WHC of the final residue. The results indicated that interactions between CWPs could affect the WHC of PPF.",

keywords = "cell-wall material, sugar-beet pulp, solanum-tuberosum, nonstarch polysaccharides, aspergillus-aculeatus, nmr characterization, purification, xyloglucan, methylation, conversion",

author = "U. Ramasamy and M.A. Kabel and H.A. Schols and H. Gruppen",

year = "2013",

doi = "10.1016/j.carbpol.2012.12.057",

language = "English",

volume = "93",

pages = "589--596",

journal = "Carbohydrate Polymers",

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TY - JOUR

T1 - Structural features and water holding capacities of pressed potato fibre polysaccharides

AU - Ramasamy, U.

AU - Kabel, M.A.

AU - Schols, H.A.

AU - Gruppen, H.

PY - 2013

Y1 - 2013

N2 - Pressed potato fibre (PPF) has a high water holding capacity (WHC) affecting its processing as an animal feed. The aim of this study was to characterize cell wall polysaccharides (CWPs) in PPF and investigate their WHC. This was done via sequential extractions. Half of all CWPs were recovered in the hot buffer soluble solids extract as pectins (uronic acid and rhamnose) and galactans wherein most pectins (76%) from PPF were water soluble. Most likely, the network of CWPs is loosened during processing of potatoes. PPF showed a WHC of 7.4 expressed as the amount of water held per g of dry matter (mL/g). Reconstituting hot buffer soluble solids with buffer insoluble solids in water gave a WHC comparable to that of PPF. Removal of alkali soluble solids, which mainly comprised xyloglucans, lowered the WHC of the final residue. The results indicated that interactions between CWPs could affect the WHC of PPF.

AB - Pressed potato fibre (PPF) has a high water holding capacity (WHC) affecting its processing as an animal feed. The aim of this study was to characterize cell wall polysaccharides (CWPs) in PPF and investigate their WHC. This was done via sequential extractions. Half of all CWPs were recovered in the hot buffer soluble solids extract as pectins (uronic acid and rhamnose) and galactans wherein most pectins (76%) from PPF were water soluble. Most likely, the network of CWPs is loosened during processing of potatoes. PPF showed a WHC of 7.4 expressed as the amount of water held per g of dry matter (mL/g). Reconstituting hot buffer soluble solids with buffer insoluble solids in water gave a WHC comparable to that of PPF. Removal of alkali soluble solids, which mainly comprised xyloglucans, lowered the WHC of the final residue. The results indicated that interactions between CWPs could affect the WHC of PPF.

KW - cell-wall material

KW - sugar-beet pulp

KW - solanum-tuberosum

KW - nonstarch polysaccharides

KW - aspergillus-aculeatus

KW - nmr characterization

KW - purification

KW - xyloglucan

KW - methylation

KW - conversion

U2 - 10.1016/j.carbpol.2012.12.057

DO - 10.1016/j.carbpol.2012.12.057

M3 - Article

SN - 0144-8617

VL - 93

SP - 589

EP - 596

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

IS - 2

ER -

Structural features and water holding capacities of pressed potato fibre polysaccharides

Abstract

Keywords

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