Diketo word gewoonlik deur twee spelers gespeel en kan met klippies of albasters gespeel word. Sport and Recreation Services want to ensure that these indigenous games are not lost, so that the current and future generations of children can enjoy playing them too. Accumulation of diketo-acid is shown to be dependent on the pH of the medium. The interaction of aqueous curcumin with cationic surfactants of varying chain lengths and head group, stabilizing its β-diketo tautomer and exhibiting an UV band around 355 nm, has been studied in buffered aqueous solutions in the pH range of 2.00–7.00 by UV–visible and fluorescence spectroscopy, and surface tensiometry under optimal experimental conditions of submicellar concentration of the surfactants. Production of 2,5-diketogluconate by Gluconobacter oxydans (ATCC9937) in two types of reactors, namely, airlift and stirred fermentors, is described. Copyright © 2020 Elsevier B.V. or its licensors or contributors.
Copyright © 2013 Elsevier B.V. All rights reserved. Hydrophobic interaction between the tail of the surfactant and the nonionic curcumin molecule assists the electrostatic interaction. Diketo, also known as Magave, Upuca, or Puca, is one of ten recognized indigenous games of South Africa and Lesotho. 5. Geometricparameters (bond length, 'r' in Å; bond angle ' 'and dihedral angle 'Φ'in ⁰) of the diketo and the enol tautomers of acetylacetone in the gas phase, using different levels of computations Code ... Diketo 35-36 Morabaraba 37-40 Kho-Kho 41-49 Drie Stokkies 50-52 . Protonation of the methylenic central carbon atom breaks the π-conjugation.


An observed secondary salt effect on the interaction indicates an unusual involvement of a proton in the interaction. As the surfactant concentration increases, the curcumin–cationic complex forms premicellar aggregates where the curcumin exists in a highly polar microenvironment before shifting its location to the nonpolar core of the surfactant micelles. The player throws a stone or a gum into the air and then tries to grab as many stones as possible in the circle before they catch it again with the same hand. By continuing you agree to the use of cookies. Copyright © 2020 Elsevier B.V. or its licensors or contributors. The enzyme profile of the culture depicting two distinct phases, i.e.

The enzyme profile of the culture depicting two distinct phases, i.e. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Stabilization of diketo tautomer of curcumin by premicellar cationic surfactants: A spectroscopic, tensiometric and TD-DFT study.

If the player does not catch the gho, it is the next player's turn. Reëls.

Accumulation of diketo-acid is shown to be dependent on the pH of the medium. Copyright © 1991 Published by Elsevier Inc. https://doi.org/10.1016/0141-0229(91)90010-8. Diketo, ook bekend as Magave, Upuca of Jacks, is een van tien erkende inheemse speletjies van Suid Afrika. Time Dependent Density Functional Theory (TD-DFT) has also been used to predict the molecular structure and excitation energies of the interaction product in the ground state and the nature of the interaction. The strength of the interaction increases with the chain length of the surfactant and also changes on changing the head group of the surfactant.

If the player does not catch the gho, it is the next player's turn. BBBEE Certificates, Tax Clearance Certificates, Branch Contacts, Trade References, Catalogues are accessable as well as access to Advanced Search and Tender tools . “This is a rich, measurable offering responsive to driving the National Development Plan’s vision of 2030 of driving social cohesion and nation-building through sporting platforms which drive active citizenry participation in sporting codes w… ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Ion dipole binding between cationic head group and electron-rich β-diketo oxygens. Oxidation of gluconate to 2,5-diketogluconate in Gluconobacter oxydans is described as a specific reaction carried out through an intermediate of 2-ketogluconate rather than 5-ketogluconate.

The interaction of aqueous curcumin with cationic surfactants of varying chain lengths and head group, stabilizing its β-diketo tautomer and exhibitin… Diketo is usually played by two players and can be played with pebbles or marbles. According to Sports and Recreation, the initiative was a platform for the country’s diverse citizens to reflect on the games’ rich history and their influence on shaping the daily and future interactions of culture. The player throws a stone or a gum into the air and then tries to grab as many stones as possible in the circle before they catch it again with the same hand.

[1][2][3] It is similar to the game Jacks. We use cookies to help provide and enhance our service and tailor content and ads.

We use cookies to help provide and enhance our service and tailor content and ads.

[4], "Indigenous Games Promotion and Training", "Indigenous Games Festival promotes unity in South Africa", https://en.wikipedia.org/w/index.php?title=Diketo_(game)&oldid=946000757, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 17 March 2020, at 13:06. By continuing you agree to the use of cookies.

Technical Official, (Referee / Umpire) personnel designated to officiate during the games.

Your grandparents probably enjoyed playing intonga, kho-kho or jukskei when they were young. β-Diketo form of curcumin is stabilized in pH range of 2–7 in cationic premicelles. Diketo is usually played by two players and can be played with pebbles or marbles.

A secondary salt effect indicates involvement of a proton in the interaction.

Based on the experimental and theoretical evidences the following mechanism has been proposed for the stabilization of the β-diketo form: on the approach of the cationic surfactant, a protonation of the methylenic central carbon atom of curcumin takes place simultaneously breaking the π-conjugation and facilitating the detachment of the enolic proton paving the way for an ion dipole binding between the cationic head group and the electron-rich β-diketo oxygen atoms. The player who has the most pebbles or marbles wins the game. direct glucose oxidation and gluconate oxidation, is described. Twee meisies speel Diketo. Diketo Sewing it a sewing company ... As a registered member other relevant company information e.g. https://doi.org/10.1016/j.molliq.2013.09.005. Evidences are based on surface tension, UV, fluorescence, salt effect and TD-DFT. Oxidation of gluconate to 2,5-diketogluconate in Gluconobacter oxydans is described as a specific reaction carried out through an intermediate of 2-ketogluconate rather than 5-ketogluconate. direct glucose oxidation and gluconate oxidation, is described.