{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Hu S"],"funding":["National Natural Science Foundation of China","Guangxi Key Research and Development Program","National Key Research and Development Program of China"],"pagination":["100296"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8976093"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14"],"pubmed_abstract":["In this study, apple pectin (AP) and tomato pectin (TP) were demonstrated to be a high-ester (74.8%) polysaccharide with the weight-average molecular weight (<i>M<sub>w</sub></i> ) of ∼ 243 kDa and a low-ester (45.9%) polysaccharide with the <i>M<sub>w</sub></i> of ∼ 19 kDa, respectively. The semi-rigid chain conformations of pectic polysaccharides in NaNO<sub>3</sub> aqueous solution were deduced according to the Smidsrød \"<i>B</i> values\" of AP (0.025) and TP (0.029), while AP and TP exhibited higher stiffness in water due to the electric repulsion of carboxyl groups, which was visually observed by AFM images. Under steady shear, the shear-thickening behaviors of AP and TP in NaNO<sub>3</sub> aqueous solutions were observed in the shear rate range of < 1 s<sup>-1</sup>, which were attrib"],"journal":["Food chemistry: X"],"pubmed_title":["Chain conformations and steady-shear viscosity properties of pectic polysaccharides from apple and tomato."],"pmcid":["PMC8976093"],"funding_grant_id":["21875167","22075213","21574102","2016YFD0400202","2020BCA079"],"pubmed_authors":["Nie S","Hu S","Wang Q","Xu X","Wang J"],"additional_accession":[]},"is_claimable":false,"name":"Chain conformations and steady-shear viscosity properties of pectic polysaccharides from apple and tomato.","description":"In this study, apple pectin (AP) and tomato pectin (TP) were demonstrated to be a high-ester (74.8%) polysaccharide with the weight-average molecular weight (<i>M<sub>w</sub></i> ) of ∼ 243 kDa and a low-ester (45.9%) polysaccharide with the <i>M<sub>w</sub></i> of ∼ 19 kDa, respectively. The semi-rigid chain conformations of pectic polysaccharides in NaNO<sub>3</sub> aqueous solution were deduced according to the Smidsrød \"<i>B</i> values\" of AP (0.025) and TP (0.029), while AP and TP exhibited higher stiffness in water due to the electric repulsion of carboxyl groups, which was visually observed by AFM images. Under steady shear, the shear-thickening behaviors of AP and TP in NaNO<sub>3</sub> aqueous solutions were observed in the shear rate range of < 1 s<sup>-1</sup>, which were attrib","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jun","modification":"2025-04-05T22:18:25.267Z","creation":"2025-04-05T22:18:25.267Z"},"accession":"S-EPMC8976093","cross_references":{"pubmed":["35378729"],"doi":["10.1016/j.fochx.2022.100296"]}}