Chelates in Agriculture, Metal Chelation by Glucose-Ammonia Derivatives

Hodge, John E.; Nelson, E. C.; Moy, B. F.

doi:10.1021/jf60126a007

Cited by 11 publications

(3 citation statements)

References 6 publications

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“…It can chelate iron strongly in neutral conditions but bivalent metallic ions like calcium ions require a strongly alkaline pH. The high alkaline pH is essential to disengage protons from the hydroxyl groups, thereby creating anionic centres which are known to bind metals strongly ( 20 ).…”

Section: Discussionmentioning

confidence: 99%

“…In this study, sodium gluconate was employed at an optimum pH of 9 wherein the sodium gluconate selectively forms a calcium gluconate complex through the carboxylic oxygen atom alone as the anionic centres cannot be formed. This has led to the selected chelating ability of sodium gluconate to chelate calcium in an unorganised framework of the smear layer was therefore similar to EDTA ( 20 ), as no difference was observed in smear layer removal capability. However, with respect to chelating calcium from a well-organised calcium hydroxyapatite crystals framework, the sodium gluconate was not as aggressive as EDTA and produced significantly less dentinal erosion.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Effect of Natural Extract Sodium Gluconate on Smear Layer and Dentine Decalcification Compared with EDTA – An In-vitro Study

KARTHIKEYAN

2023

Eur Endod J

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Objective Mechanical instrumentation of the root canal system generates a smear layer on the canal walls which are removed most commonly with the help of chelators such as ethylenediaminetetraacetic acid (EDTA) but can potentially cause severe dentinal erosion. Considerable research has been conducted to find an alternative to EDTA which removes the smear layer without causing dentinal erosion. The current study aimed at evaluating the ability of sodium gluconate compared with that of 17% EDTA in smear layer removal along with its effect on dentine decalcification when used as a final irrigant. Methods Twenty single-rooted mandibular premolars were collected and prepared based on the pre-set criteria. Following preparation, the specimens were exposed to the test solutions as a final irrigant. Then the specimens were subjected to (Scanning electron microscope) SEM analysis at 1000x for evaluating the smear layer and 5000x for evaluating the dentinal erosion, and a Vickers microhardness tester was used for evaluating the reduction in dentine microhardness post-treatment. The values obtained were analysed using SPSS software for a statistically significant difference with Mann-Whitney U test for evaluating of smear layer removal and dentinal erosion and using one-way (Analysis of variance) ANOVA test for microhardness evaluation. Results The smear layer removal capability of sodium gluconate was as effective as EDTA on the contrary sodium gluconate did not cause any dentinal erosion compared to EDTA with a statistically significant difference (p=0.002 in middle third and p=0.001 in apical third of the canal). Microhardness reduction caused by sodium gluconate was less compared to EDTA, however, no statistically significant difference (p=0.113) was noted. Conclusion Sodium gluconate, therefore, can produce a balance between smear layer removal and dentinal decalcification and can be considered a potential alternative to EDTA.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of Effect of Natural Extract Sodium Gluconate on Smear Layer and Dentine Decalcification Compared with EDTA – An In-vitro Study

KARTHIKEYAN

2023

Eur Endod J

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“…In contrast, the addition of succinate (0.5% w/v) reduced nickel uptake by Pseudomonas aeruginosa by 0.5-fold (Sar, Kazy, Asthana & Singht, 1998). Additionally, carbon sources may be considered as metal chelators (Bourne, Searle & Weigel, 1971), and the sequestration of cupric, calcium, strontium, and ferric ions by glucose and its derivatives has been previously documented (Hodge, Nelson & Moy, 1963).…”

Section: Introductionmentioning

confidence: 99%

Effect of Glucose Concentration on Ni and V Removal from a Spent Catalyst by Bacillus spp. Strains Isolated from Mining Sites

et al. 2018

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Considering the progressive depletion of natural resources and the increasing environmental pollution, recovery of metals from spent catalysts has been gaining importance, as they can be an eco-friendly source of commercially valuable metals. The present study reports on the ability of three Bacillus spp. strains to remove Ni and V contained in a spent catalyst at 8% of pulp density (w/v). As modifications in the growth environment, like pH and the presence of diverse carbon sources, can cause changes in cell properties, the present study evaluated the effect of glucose presence in PHGII media on Ni and V removal from a spent catalyst. Assays were performed on PHGII liquid media, and on PHGII without glucose for 7 days. The maximum removal values obtained were 2542 mg/kg for Ni, and 3701 mg/kg for V for the isolate MV-9K-2 of Bacillus megaterium in the system, where PHGII was not added with glucose.

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Sugar Alcohols

Lawson¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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The chemical, physical, and biological properties as well as the functional applications of sugar alcohols (polyols) are discussed in this article. Sugar alcohols are derived from sugars by catalytic hydrogenation to reduce an aldehyde or a ketone group of a sugar to a hydroxyl group. The sugar alcohols are classified as monosaccharide and disaccharide alcohols, with further subclassification of the monosaccharide alcohols according to the number of carbons they contain: tetritols, ie, erythritol; pentitols, ie, xylitol; and hexitols, ie, sorbitol and mannitol. The disaccharide alcohols discussed include maltitol, lactitol, and isomalt. Unlike the corresponding sugars from which they are derived, sugar alcohols have the advantages of anticariogenicity (ie, they do not cause tooth decay), insulin‐independent metabolism, and lower caloric values. These properties have led to the use of sugar alcohols in a wide variety of sugar‐free applications, such as chewing gum, hard candy, chocolate coatings, and bakery.

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Chelates in Agriculture, Metal Chelation by Glucose-Ammonia Derivatives

Cited by 11 publications

References 6 publications

Evaluation of Effect of Natural Extract Sodium Gluconate on Smear Layer and Dentine Decalcification Compared with EDTA – An In-vitro Study

Evaluation of Effect of Natural Extract Sodium Gluconate on Smear Layer and Dentine Decalcification Compared with EDTA – An In-vitro Study

Effect of Glucose Concentration on Ni and V Removal from a Spent Catalyst by Bacillus spp. Strains Isolated from Mining Sites

Sugar Alcohols

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