De Simpel Fit! interventie is ontwikkeld in 2009 door de GGD Noord- en Oost-Gelderland (GGD NOG) voor de Turkse doelgroep en veelvuldig uitgevoerd in en rondom Gelderland. Sinds 2016, wordt de interventie ook uitgevoerd in Amsterdam door de Stichting voor Interculturele Participatie en Integratie (Sipi). Ook is de interventie uitgebreid met een Marokkaanse variant. Na uitbreiding van de interventie, is vanuit de uitvoerend professional de vraag gekomen om onderzoek te doen naar de effecten van de interventie. Voorgaande pogingen om dit te doen bleken moeilijkheden met zich mee te brengen. Zo bleek onder andere, uit oriënterende gesprekken met de ontwikkelaars en uitvoerders, dat het meetinstrument te talig was. Daarom is het lectoraat Voeding en Beweging van de Hogeschool van Amsterdam (HvA) nu gevraagd om een uitgebreide effectevaluatie te verrichten met een tool die beter aansluit bij de doelgroepen.
The catalytic oxidation of potato starch by [MnIV2 (μ-O)3(tmtacn)2][H2O](CH3COO)2 (Mncat, with tmtacn =1,4,7-trimethyl-1,4,7-triazacyclononane) with H2O2, was recently introduced as a promising alternative to ubiquitous sodium hypochlorite (NaOCl). Here, we report an in-depth investigation into interactions of the catalyst with the starch granule. Pitted starches obtained by pre-treatment with high-frequency ultrasound (HFUS) were shown to result in a uniquely homogeneous oxidation. To study this further, fractionation of oxidised potato starch was done which showed a preference for the oxidation of smaller granules with a higher relative surface area. This result was corroborated by chemical surface gelatinisation of fractionated granules. These studies showed that the inside of the granules was oxidised, but that Mncat had a moderate preference for oxidation of the periphery. Together, these results allow for a better understanding of oxidation of starch by Mncat and how it differs from NaOCl oxidation making further optimisation of the process possible.
The invention relates to the use of modified starch obtainable by treating amylose containing starch in aqueous medium with an enzyme from the group of the α-1,4-α-1,4-glucosyl transferases (EC 2.4.1.25) or an enzyme the activity of which corresponds to that of enzymes from the group just mentioned, as an agent for forming a thermoreversible gel. The invention also relates to products in the form of a thermoreversible gel having as gel-forming substance a modified starch as defined. The invention further relates to the use of a modified starch as defined in the form of an aqueous solution.
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