Structural and biological properties of polysaccharides from lotus root

Yi, Yang; Huang, Xiaoyun; Zhong, Zhao-Tian; Huang, Fei; Li, Shuyi; Wang, Limei; Min, Ting; Wang, Hongxun

doi:10.1016/j.ijbiomac.2019.02.146

Cited by 35 publications

(33 citation statements)

References 33 publications

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“…The UV spectral analyses (Figure 5(a)) of LSCP and LSRP showed absorption peaks at approximately 280 nm, implying the presences of proteins in the polysaccharides, which is consistent with the results of the chemical analysis. This phenomenon was similar to that of polysaccharides from lotus root, 20 whereas this was different from the polysaccharides from lotus plumules 17 . FTIR spectrophotometry was used to characterize the functional groups and chemical bonds in LSCP and LSRP (Figure 5(b)).…”

Section: Resultsmentioning

confidence: 59%

“…Polysaccharides obtained from the lotus plumule have been purified, characterized, and found to possess antioxidant, antidiabetic, and anti‐inflammatory activities 16‐18 . Polysaccharides extracted from lotus roots have been characterized and indicated to show immunomodulatory and antitumor activities 19,20 . Polysaccharides extracted from lotus leaves have been purified, characterized, and discovered to exert immunostimulatory, antidiabetic, and anti‐osteoporotic effects 21‐23 .…”

Section: Introductionmentioning

confidence: 99%

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Extraction optimization, physicochemical property, antioxidant activity, and α‐glucosidase inhibitory effect of polysaccharides from lotus seedpods

Shu

Liang

et al. 2022

J Sci Food Agric

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BACKGROUND Lotus seedpods are an agricultural by‐product of lotus (Nelumbo nucifera Gaertn.), which is widely cultivated in Southeast Asia and Australia. Most lotus seedpods are considered waste and are abandoned or incinerated, resulting in significant waste of resources and heavy environmental pollution. For recycling lotus seedpods, the extraction optimization, physicochemical properties, antioxidant activity, and α‐glucosidase inhibitory effect of the polysaccharides contained therein were investigated in this study. RESULTS Hot water extraction of lotus seedpod polysaccharides was optimized by using a response surface methodology combined with a Box–Behnken design, with the optimum conditions being as follows: a liquid/solid ratio of 25.0 mL g−1, an extraction temperature of 98.0 °C, and an extraction time of 138.0 min. Under these conditions, an experimental yield of 5.88 ± 0.06% was obtained. Physicochemical analyses suggested that lotus seedpod polysaccharides belong to acidic heteropolysaccharides and are principally composed of rhamnose, arabinose, galactose, glucose, mannose, and galacturonic acid. The polysaccharides content has a broad molecular weight distribution (2.15 × 105 to 1.77 × 107 Da), an α‐configuration, and mainly possesses smooth and sheet‐like structures. Biological evaluations showed that the polysaccharides possessed good scavenging activity on 2,2′‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) diammonium salt, 1,1‐diphenyl‐2‐picryl‐hydrozyl, and hydroxyl radicals, and exerted an obvious inhibitory effect on α‐glucosidase activity. Moreover, the polysaccharides content was determined to be a mixed‐type noncompetitive inhibitor of α‐glucosidase. CONCLUSION The results indicate that lotus seedpod polysaccharides have potential as natural antioxidants and hypoglycaemic substitutes. This study provides the theoretical bases for the exploitation and application of polysaccharides from lotus seedpod by‐product resources. © 2022 Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Extraction optimization, physicochemical property, antioxidant activity, and α‐glucosidase inhibitory effect of polysaccharides from lotus seedpods

Shu

Liang

et al. 2022

J Sci Food Agric

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“…After filtration, the defatted residue was dried at 60 °C. The dried residue was extracted with distilled water (90 °C) 3 times in a 1:20 solid–liquid ratio (w/v) for 2 h. The extraction solutions were concentrated and mixed with ethanol (final concentration 30%) at 4 °C for 3 h to precipitate insoluble polysaccharides ( Yi et al, 2019 ). After centrifugation, the ethanol concentration in the supernatant was increased to 80% (4 °C, 16 h).…”

Section: Methodsmentioning

confidence: 99%

Preparation, chemical structure, and immunostimulatory activity of a water-soluble heteropolysaccharide from Suillus granulatus fruiting bodies

Guan

Zeng

et al. 2022

Food Chemistry: X

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“…Polysaccharide is one of the most important biomacromolecules in the growth and development of organisms (Yi et al ., 2019). Natural plant polysaccharides have been extensively studied for their anti‐oxidation, anti‐inflammatory, anti‐cancer, anticoagulated, anti‐diabetic and immune regulation functions (Jin et al ., 2014; Shao et al ., 2015; Wang et al ., 2018; Bai et al ., 2020).…”

Section: Introductionmentioning

confidence: 99%

Dietary polysaccharide from Mung bean [Vigna radiate (Linn.) Wilczek] skin modulates gut microbiota and short‐chain fatty acids in mice

Xie

Song

et al. 2021

Int J of Food Sci Tech

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Cumulative evidence revealed that the gut microbiota play important role in human health. Polysaccharide from Mung bean [Vigna radiate (Linn.) Wilczek] skin has been confirmed to have a variety of biological activities, but its effect on the gut microbiota has not been considered. This study aimed to investigate the effect of hot water extraction of mung bean skin water-soluble polysaccharides (MBP-2) on the gut microbiota of Balb/c mice and its main metabolite short-chain fatty acids (SCFAs). The results showed that supplementation with MBP-2 increased the colon length and the production of SCFAs in Balb/c mice, and improved the intestinal microenvironment by producing SCFAs, which is beneficial to the intestinal health of mice. MBP-2 increased the Chao1 index and ACE index in a dose-depended manner, and changed the structure of the gut microbiota and significantly promoted the growth of probiotic bacteria in Balb/c mice. The faecal bacterial flora of mice is mainly composed of nine phyla and twentyseven genera, MBP-2 can regulate the composition of intestinal flora by increasing Firmicutes, Bacteroidetes, Clostridium and decreasing TM7, thereby maintaining intestinal health.

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Structural and biological properties of polysaccharides from lotus root

Cited by 35 publications

References 33 publications

Extraction optimization, physicochemical property, antioxidant activity, and α‐glucosidase inhibitory effect of polysaccharides from lotus seedpods

Extraction optimization, physicochemical property, antioxidant activity, and α‐glucosidase inhibitory effect of polysaccharides from lotus seedpods

Preparation, chemical structure, and immunostimulatory activity of a water-soluble heteropolysaccharide from Suillus granulatus fruiting bodies

Dietary polysaccharide from Mung bean [Vigna radiate (Linn.) Wilczek] skin modulates gut microbiota and short‐chain fatty acids in mice

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