Synthesis of bio-based aldehyde from seaweed polysaccharide and its interaction with bovine serum albumin

Kholiya, Faisal; Chaudhary, Jai Prakash; Vadodariya, Nilesh; Meena, Ramavatar

doi:10.1016/j.carbpol.2016.05.022

Cited by 41 publications

(11 citation statements)

References 39 publications

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“…The IR band appears at 1076 cm −1 due to primary alcoholic stretching (CH 2 OH) and a characteristic band of aldehydic carbonyl groups at 1734 cm −1 (Figure 2). 34 FTIR spectrum of the CHI showed a broad band at 3436 cm −1 due to OH functional groups, at 1580 and 3436 cm −1 for OH and NH 2 functional groups respectively. The bands appear at 2928, 2886, and 1382 cm −1 due to CH bands in CHI chains 15 .…”

Section: Resultsmentioning

confidence: 98%

“…A ald used in this study was prepared from carboxymethyl agar (CMA) by the periodate oxidation method reported in the previous work 34 . The process for the synthesis of (A ald ) is described in the present work here: 1 g CMA was dissolved in 20 ml distilled water at room temperature under vigorous stirring conditions followed by addition of 10 ml NaIO 4 (10%) aqueous solution.…”

Section: Methodsmentioning

confidence: 99%

“…A ald used in this study was prepared from carboxymethyl agar (CMA) by the periodate oxidation method reported in the previous work. 34 The process for the synthesis of (A ald ) is described in the present work here: 1 g CMA was dissolved in 20 ml distilled water at room temperature under vigorous stirring conditions followed by addition of 10 ml NaIO 4 (10%) aqueous solution. The pH of the reaction mixture was maintained at five using 1 M H 2 SO 4 and mixture was stirred for 4 h. The product (A ald ) has been isolated from the resulting reaction mixture by iso-propyl alcohol (IPA) (1: 2 v/v) precipitation followed by subsequent washings with distilled water and IPA to remove the impurity.…”

Section: Preparation Of a Aldmentioning

confidence: 99%

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Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Kholiya

Singh

Gosai

et al. 2021

J of Applied Polymer Sci

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Agaraldehyde and chitosan (CHI) functional beads as dye adsorbent were prepared under aqueous medium under ambient temperature and used for removing seven dyes from aqueous solutions. The resulting porous CHI‐Aald (R‐Aald‐CHI) bio‐beads were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscope. The dye removal efficiency was studied using seven dyes (amido black [AB], bromophenol blue, crystal violet, bismarck brown, cotton blue, methyl orange, methylene blue), but detail study was done on AB. AB adsorption was followed the Langmuir‐isotherm and pseudo‐second order kinetics. The effects of adsorption parameters were investigated, and maximum AB 1506 mg/g was adsorbed under the optimum conditions. The linear and nonlinear forms of Langmuir and Freundlich isotherms and two kinetic models pseudo‐first‐order and pseudo‐second‐order were studied. The results show that adsorption follow both isotherm model while for kinetics of adsorption follow pseudo‐second‐order. The results of this work showed that R‐Aald‐CHI was encouraging adsorbent to remove dyes from wastewater, especially AB.

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Section: Resultsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Preparation Of a Aldmentioning

confidence: 99%

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Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Kholiya

Singh

Gosai

et al. 2021

J of Applied Polymer Sci

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“…The aldehyde mass fraction in polyaldehyde derivatives of kefiran and pullulan obtained by the method of Kholiya et al . ( 30 ) using hydroxylamine hydrochloride was (23.6±0.9) and (19.9±1.3) %, respectively.…”

Section: Methodsmentioning

confidence: 96%

“…Afterward, the oxidized polysaccharides were separated by centrifuging at 10 000×g for 20 min, were washed three times with distilled water and subsequently were freeze-dried for 1 day. The aldehyde content of polyaldehyde kefiran and pullulan, respectively, was obtained (23.6±0.9) and (19.9±1.3) % by the reported method by Kholiya et al (30) using hydroxylamine hydrochloride.…”

Section: Preparation Of Polyaldehyde Polysaccharidesmentioning

confidence: 91%

Continuous Clarification of Barberry Juice with Pectinase Immobilised by Oxidised Polysaccharides

Hosseini

Khodaiyan

Mousavi

et al. 2021

Food Technol. Biotechnol. (Online)

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Research background. Barberry juice is a rich source of bioactive compounds and shows different health properties such as antioxidant and anticancer activities. Clarification, as the removal process of suspended material, is an important step in production process of fruit juice due to its significant effect on the appearance, flavor and commercialization of juice. Pectinase is the most important enzyme applied in juice clarification that breaks down the pectin polymer structure and leads to reduce the undesirable turbidity. Pectinase immobilization is a way to overcome free enzyme drawbacks such as instability, high cost, the difficulty of recovery and recyclability. Also, continuous clarification process which is highly preferred in fruit juice industry is not possible without enzyme immobilization. Experimental approach. Pectinase enzymes were immobilized on the functionalized glass beads (glass bead+3-aminopropyl triethoxysilane) by glutaraldehyde, polyaldehyde pullulan and polyaldehyde kefiran and the barberry juice clarification was accomplished in the batch and continuous process in a packed bed reactor (PBR). Also, the effect of clarification process on the physicochemical and antioxidant properties of the barberry juice samples was evaluated. Results and conclusions. The clarification optimum conditions in the PBR were obtained at a flow rate of 0.5 mL/min, the temperature of 50 °C and treatment time of 63 min. The clarification process led to a decrease in turbidity, pH, total soluble solids, viscosity, total phenol content and antioxidant activity of the juice samples. Also, this process increased the clarity, acidity, reducing sugar content and the lightness parameter of the barberry juice. It was found that the greatest effect on the studied properties was related to polyaldehyde kefiran-immobilized pectinase treatment in the continuous process and both new cross-linkers had better enzyme immobilization performance than common cross-linker (glutaraldehyde). Novelty and scientific contribution. For the first time, barberry juice was clarified with pectinase immobilized by polyaldehydes of pullulan and kefiran and the obtained results showed that the pectinase immobilization by these new cross-linkers was much more efficient than by the glutaraldehyde as common cross-linker. Therefore, it seems that these findings can be of use towards an industrialised production of fruit juices.

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Seaweed‐derived polymer‐based blue‐emitting C‐dots: synthesis, characterization and evaluation for iron sensing

Kholiya

Jauhari

Meena

2021

Polymer International

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In recent times green and economical processes as well as sources have been in demand for the synthesis of carbon dots (C‐dots). This study demonstrates the smart utilization of seaweed‐derived polysaccharide as a green precursor for the synthesis of blue‐emitting fluorescent C‐dots using a simple, eco‐friendly and green method in an aqueous medium. The C‐dots prepared in this study were characterized using various techniques. The results confirmed that the prepared C‐dots have a cluster size of 100 nm with particle sizes in the range 5–10 nm. Prepared C‐dots emit blue photoluminescence with a good quantum yield of ca 12%. Additionally, strong fluorescence quenching of C‐dots is observed in aqueous solution containing iron ions, and a selective decrease in fluorescence intensity makes it possible to determine iron in water samples in the range 0.025 to 30 ppm. Results of this work encourage us that abundantly available seaweed‐derived polysaccharides with no other commercial value could be used as green sources for the sustainable production of fluorescent, water‐soluble and biocompatible nanocarbon for selective iron sensing in aqueous solutions. © 2021 Society of Chemical Industry

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Synthesis of bio-based aldehyde from seaweed polysaccharide and its interaction with bovine serum albumin

Cited by 41 publications

References 39 publications

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Continuous Clarification of Barberry Juice with Pectinase Immobilised by Oxidised Polysaccharides

Seaweed‐derived polymer‐based blue‐emitting C‐dots: synthesis, characterization and evaluation for iron sensing

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