Fingerprint profiling of polysaccharides from different parts of lotus root varieties

Wang, Hongxun; Yi, Yang; Sun, Jie; Lamikanra, Olusola; Min, Ting

doi:10.1039/c8ra01104d

Cited by 19 publications

(10 citation statements)

References 25 publications

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“…Accordingly, LSRP with lower moisture content is better for preservation, in comparison with LSCP. Additionally, compared with the findings of previous investigations, the chemical components of polysaccharides (LSCP and LSRP) from lotus seedpods were obviously different from those from lotus roots, 19,47 plumules, 49 and leaves 21 …”

Section: Resultsmentioning

confidence: 52%

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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: 52%

“…Therefore, the regression model accurately predicted the extraction yield of lotus seedpod polysaccharides. In addition, the experimental extraction yield of lotus seedpod polysaccharides under the optimal conditions was dramatically higher than that of polysaccharides from roots, 47 plumules, 17 and leaves 21 of lotus.…”

Section: Resultsmentioning

confidence: 86%

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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“…Their protein contents (g albumin equivalents/100g DW) were determined using a Coomassie brilliant blue staining-based protein determination kit (Nanjing Jiancheng Bioengineering Institute, Nanjing, China), and their free amino group contents were measured by the modified OPA method of Xue et al [ 34 ] and expressed as lysine equivalents (μmol/g DW). In addition, the monosaccharide composition was analyzed by a reversed-phase high-performance liquid chromatography (HPLC) method with 1-phenyl-3-methyl-5-pyrazolone-based precolumn derivatization [ 35 ].…”

Section: Methodsmentioning

confidence: 99%

Effects of a Lysine-Involved Maillard Reaction on the Structure and In Vitro Activities of Polysaccharides from Longan Pulp

Han

Huang

et al. 2019

Molecules

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The effects of amino acid-involved Maillard reactions (MRs) on the structure and activities of longan pulp polysaccharides (LPs), which were heteropolysaccharides mainly composed of glucose, galactose, mannose, rhamnose, glucuronic acid, ribose, and galacturonic acid, were investigated. The changes of browning degree and molecular weight (Mw) distribution in the MR systems containing LPs and amino acids (lysine, proline, or glycine) indicated that lysine was more active in conjugating with LPs. The MR-modified LPs (MLPs) obtained via a 4 h MR between LPs and lysine showed obvious structural differences from LPs. Specifically, particle-like LPs contained 94% fractions with a Mw less than 7.07 kDa, by contrast, network-like MLPs contained 45% fractions with a Mw larger than 264.1 kDa. Moreover, MLPs showed stronger radical scavenging abilities and macrophage immunostimulating effects, but weaker cancer cell growth-inhibitory abilities. The results indicate that the amino acid-involved MR is a promising method to modify native polysaccharides for better biological properties.

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“…Phytochemical screening of the lotus root biomass revealed the presences of many biologically active compounds such as carbohydrates, reducing sugars, glycosides, proteins, steroids, phenols, flavones, tannins, saponins, alkaloids, anthroquinones, and quinines 9–12…”

Section: Methodsmentioning

confidence: 99%

“…Due to the presence of some possible functional groups known to exist in Nelumbo nucifera Gaertn, lotus root biomass can be used for sorption of heavy metals, cations, anions and dyes from aqueous solutions 12,13…”

Section: Abbreviationsmentioning

confidence: 99%

Bio-accumulation of Arsenic (III) Using Nelumbo Nucifera Gaertn

Painuly

Vats

2019

Journal of Health and Pollution

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Background. High arsenic levels in potable water are a threat to public health in India. About 85% of the water in India's rural areas comes from groundwater and roughly 27 million people are at risk of arsenic (As) contamination. Objectives. The present study was performed to examine the feasibility of providing an effective and affordable means for arsenic abatement in socio-economically poor and rural areas in India. This is the first report on the effectiveness of powder Nelumbo nucifera Gaertn (lotus) root biomass for As (III) eradication from aqueous solution. Methods. Batch experiments were conducted to determine the effects of various operating parameters, including pH, initial As (III) ion concentration, adsorbent dosages, and contact time for As (III) sorption onto lotus root. Discussion. The sorption efficiency of lotus root biomass for As (III) at pH 7 was found to be quantitative (96%) from 50 mg/L aqueous solution at a dose of 5gL −1 . Capacity of the biosorbent for As (III) ion adsorption and the interaction between adsorbate with biosorbents were studied using Langmuir and Freundlich isotherm models. In the present study, the equilibrium parameter values ranged between 0 and 1, indicating that the adsorption of the As (III) ion onto lotus root biomass was favorable. Conclusions. Lotus root powder biomass was found to be an effective adsorbent for As (III) and could be used as an efficient, cost-effective and environmentally safe biosorbent for the sorption of arsenic from aqueous solutions. Competing Interests. The authors declare no competing financial interests.

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Fingerprint profiling of polysaccharides from different parts of lotus root varieties

Abstract: Thirty-nine polysaccharides isolated from lotus roots were characterized with fingerprint and chemometrics analyses to explore their similarity and diversity.

Cited by 19 publications

References 25 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

Effects of a Lysine-Involved Maillard Reaction on the Structure and In Vitro Activities of Polysaccharides from Longan Pulp

Bio-accumulation of Arsenic (III) Using Nelumbo Nucifera Gaertn

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