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2020•Vietnam Journal of ChemistryOpen access

Extraction and structural determination of pectin from pumkin Cucurbita moschata

Thành Thị Thu Thủy, Do Thi Bien, Quach Thi Minh Thu, Do Thi Xuan, Bui Van Nguyen, Ngo Van Quang, Ho Duc Cuong

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Abstract

Abstract Pectin is a heterogeneous complex polysaccharide found in the primary cell wall of most cells. In this work, low‐methoxyl pectin was extracted from pumpkin (Cucurbita moschata). The obtained pectin was characterized by GPC FTIR and NMR spectra. The obtain results showed that structural feature of the pectin is a main chain of poly‐α(1→4)‐D‐galacturonic acid and occasionally interrupted by α(1→2)‐linked α‐L‐rhamnopyranose residues and branches Galp is linked to GalpA at C‐2 position.

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What this paper is about

Abstract Pectin is a heterogeneous complex polysaccharide found in the primary cell wall of most cells. In this work, low‐methoxyl pectin was extracted from pumpkin (Cucurbita moschata). The obtained pectin was characterized by GPC FTIR and NMR spectra. The obtain results showed that structural feature of the pectin is a main chain of poly‐α(1→4)‐D‐galacturonic acid and occasionally interrupted by α(1→2)‐linked α‐L‐rhamnopyranose residues and branches Galp is linked to GalpA at C‐2 position.

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Available abstract

Abstract Pectin is a heterogeneous complex polysaccharide found in the primary cell wall of most cells. In this work, low‐methoxyl pectin was extracted from pumpkin (Cucurbita moschata). The obtained pectin was characterized by GPC FTIR and NMR spectra. The obtain results showed that structural feature of the pectin is a main chain of poly‐α(1→4)‐D‐galacturonic acid and occasionally interrupted by α(1→2)‐linked α‐L‐rhamnopyranose residues and branches Galp is linked to GalpA at C‐2 position.

Key concepts: Cucurbita moschata, Pectin, Extraction (chemistry), Chemistry, Botany, Mathematics, Food science, Chromatography

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