Basic Aspects and Applications of Membrane Processes in Agro-Food and Bulk Biotech Industries

Lipnizki, Frank

doi:10.1016/b978-0-08-093250-7.00035-9

Cited by 20 publications

(19 citation statements)

References 25 publications

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“…Preliminary experiments on the oxidation of methyl ester of pectic acid (pectin) by alkaline [Fe(CN) 6 ] 3− showed that the time-curve plots of this redox reaction were similar to those observed for oxidation of other polysaccharides by this oxidant. [19][20][21] However, it was contrary to that reported for oxidation of such pectate polysaccharide (the anionic form) despite the use of same oxidant and the same medium.…”

Section: Introductionmentioning

confidence: 55%

“…Potassium hexacyanoferrate(III) (BDH) grade was used without further purification. The solution of K 3 [Fe(CN) 6 ] was prepared by dissolving the desired weight of this reagent in doubly distilled water inside an amber-colored bottle, and then was kept it in dark to prevent the possible photodecomposition. The appropriate dilution was made before each run.…”

Section: Methodsmentioning

confidence: 99%

“…PEC has a wide application in pharmaceutical and food industries, where it can be used as an efficient thickening agent in gelling, gums, and jellies as well as in coloring, flavoring, and anti‐inflammatory. In addition, it used in oral, nasal, and vaginal preparations, which shows positive results in the cholesterol regulation and anticancer drugs . Recently, it has been successfully applied as inhibitor to prevent corrosion of some metals .…”

Section: Introductionmentioning

confidence: 99%

“…In addition, it used in oral, nasal, and vaginal preparations, which shows positive results in the cholesterol regulation and anticancer drugs. [3][4][5][6] Recently, it has been successfully applied as inhibitor to prevent corrosion of some metals. 7,8 PEC has certain advantages due to its nontoxicity, low-cost, and easy availability.…”

Section: Introductionmentioning

confidence: 99%

“…Although hexacyanoferrate(III) is known as a weak oxidant with redox potential of 0.36 and 0.4 V for [Fe(CN) 6 ] 3− /[Fe(CN) 6 ] 4− couple in acidic and alkaline solutions, respectively. 9,10 A considerable amount of work has been reported on the oxidation kinetics of organic 11,12 and inorganic [13][14][15][16][17][18] substrates by this oxidant.…”

Section: Introductionmentioning

confidence: 99%

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A promising methyl ester of pectic acid polysaccharide in biomedicine and pharmaceutics applications: Oxidation of methyl ester of pectic acid by alkaline hexacyanoferrate(III). A kinetic and mechanistic orientation

Hassan

Ibrahim²

2019

Int J of Chemical Kinetics

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The oxidation of methyl ester of pectic acid (pectin) (PEC) by a hexacyanoferrate(III) ion at a constant ionic strength of 0.1 mol dm−3 has been investigated spectrophotometrically. The oxidation rates were found to increase with increasing the alkali concentration, indicating that the nature of reaction was base catalyzed. The agreement of [pectin] dependence of the rate constants to the Michaelis‐Menten kinetics proves the formation of 1:1 intermediate complex prior to the rate‐determining step. The deviation of the pseudo–first‐order curves from linearity after 65‐70% of reaction completion indicates the interference of some oxidation products during the reaction progression. The oxidation process was proceeding via a free‐radical intervention mechanism. The activation parameters have been evaluated, and a suitable reaction mechanism is suggested and discussed.

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Section: Introductionmentioning

confidence: 55%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A promising methyl ester of pectic acid polysaccharide in biomedicine and pharmaceutics applications: Oxidation of methyl ester of pectic acid by alkaline hexacyanoferrate(III). A kinetic and mechanistic orientation

Hassan

Ibrahim²

2019

Int J of Chemical Kinetics

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Sources and methods of manufacturing xanthan by fermentation of various carbon sources

Dey,

Chatterji

2023

Biotechnology Progress

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Xanthan gum, an anionic polysaccharide with an exceptionally high molecular weight, is produced by the bacterium Xanthomonas sp. It is a versatile compound that has been utilized in various industries for decades. Xanthan gum was the second exopolysaccharide to be commercially produced, following dextran. In 1969, the US Food and Drug Administration (FDA) approved xanthan gum for use in the food and pharmaceutical industries. The food industry values xanthan gum for its exceptional rheological properties, which make it a popular thickening agent in many products. Meanwhile, the cosmetics industry capitalizes on xanthan gum's ability to form stable emulsions. The industrial production process of xanthan gum involves fermenting Xanthomonas in a medium that contains glucose, sucrose, starch, etc. as a substrate and other necessary nutrients to facilitate growth. This is achieved through batch fermentation under optimal conditions. However, the increasing costs of glucose in recent years have made the production of xanthan economically unviable. Therefore, many researchers have investigated alternative, cost‐effective substrates for xanthan production, using various modified and unmodified raw materials. The objective of this analysis is to investigate how utilizing different raw materials can improve the cost‐efficient production of xanthan gum.

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Separation Membranes Constructed from Inorganic Nanofibers by Filtration Technique

Yu¹,

Mao²,

Peng³

2012

The Chemical Record

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Nanofibrous materials have been extensively investigated and used as building blocks for various nanodevices, due to their unique one-dimensional structures. Recently, novel membranes constructed by using nanofibers have been reported by various techniques. Here, we will give a critical review of our recent research on the general solution processed unique sub-3 nm thin metal hydroxide nanofibers and their application for constructing ultrathin separation membranes via filtration technique. The superior separation performances of these membranes hold the promising future for pressure-driven membrane separation processes.

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Basic Aspects and Applications of Membrane Processes in Agro-Food and Bulk Biotech Industries

Cited by 20 publications

References 25 publications

A promising methyl ester of pectic acid polysaccharide in biomedicine and pharmaceutics applications: Oxidation of methyl ester of pectic acid by alkaline hexacyanoferrate(III). A kinetic and mechanistic orientation

A promising methyl ester of pectic acid polysaccharide in biomedicine and pharmaceutics applications: Oxidation of methyl ester of pectic acid by alkaline hexacyanoferrate(III). A kinetic and mechanistic orientation

Sources and methods of manufacturing xanthan by fermentation of various carbon sources

Separation Membranes Constructed from Inorganic Nanofibers by Filtration Technique

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