Synthesis and nondestructive detailed structure characterization of carboxymethyl xylan from bagasse

Wang, Lei; Xiang-Xiang, Qin; Miao, Xueyan; Haishan, Chen; Zhou, Yuanyue; Aihua, Cai

doi:10.1080/07328303.2020.1748643

Cited by 4 publications

(1 citation statement)

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“…The carboxymethylated polysaccharides exhibited immunoregulatory, oxidation, and antitumor effects (16)(17)(18)(19). A study on characterization of carboxymethylated xylan has been done previously, and the structural information has been obtained using 13 C nuclear magnetic resonance (20). The structural characteristics of carboxymethylated pectin had also been studied using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction, and thermogravimetric analysis (21).…”

Section: Introductionmentioning

confidence: 99%

In vitro Assessment of Chemical and Pre-biotic Properties of Carboxymethylated Polysaccharides From Passiflora edulis Peel, Xylan, and Citrus Pectin

et al. 2021

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This study aimed to determine the carboxymethylation effect of crude water-soluble polysaccharides of Passiflora edulis peel (WPEP), xylan (XY), and citrus pectin (CP). Their chemical and pre-biotic properties were also determined. The polysaccharides were carboxymethylated by reacting with chloroacetic acid and sodium hydroxide. The carboxymethylated and non-carboxymethylated polysaccharides were also used as pre-biotics to study the growth pattern of selected intestinal microflora. These polysaccharides substituted the glucose solution in culture media for culturing Lactobacillus brevis GIM1.773, Lactobacillus plantarum GIM1.19, Lactobacillus delbrueckii subsp. bulgaricus GIM1.155, and Streptococcus thermophilus GIM1.540. The results showed that the carboxymethylated polysaccharides c-XY, c-CP, and c-WPEP, had substitution degrees of 0.682, 0.437, and 0.439, respectively. The polysaccharides demonstrated resistance to digestion in the simulated human digestive models. The resistance to digestion was enhanced by carboxymethylation, especially the carboxymethylated CP and WPEP. The results also showed that the pre-biotic activities of the polysaccharides increased after carboxymethylation. The c-XY had a better pre-biotic effect than XY and the other carbohydrate samples. The findings suggested that carboxymethylated polysaccharides may be developed into novel pre-biotics and nutraceuticals that could promote growth of the probiotic strains.

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