Foaming capacity of new superficial active cationic polyethers in food hygienization

C. Jianu, Ileana Cocan, Diana Dogaru, A. Rinovetz, Mirela Sbanca, I.G. Uivaroşan, Mihaela Cazacu, I. Jianu

Volume 16, Issue 4;
Pages: 433-440;
ISSN: 2069-0053 (print) (former: ISSN:1453-1399), Agroprint;
ISSN (online):2068 – 9551
Colloidal features [foaming capacity (FC); foam stability (FS) and foam density (FD)] of conditioning auxiliaries (additives) of plant protection active principles constitute, together with toxicity, a decisive technical index in forming administering receipts in modern ecological agriculture and foodstuff processing all during the agroalimentary processing and consumption chain. In this paper we show the results of a study on a new class of superficial active compounds N, N – dimethyl – N – alkyl (R1) (CH3÷C16H33) – N – β – alkylaryl (C9H19 – C6H4-) polyethylenoxy ( = 3–20) ethylammonium chlorides. As diderived glimes, they have a guided regulation capacity of the HLB balance through the change of the medium degree of oligomerisation ( ) of the polyoxyethylene chain (PEO). Can thus obtain a wide range of structures such as mycelium solute, dispersion, emulsion, and foaming agents, etc., through the cyanoethylation of polyethoxylated nonylphenols with a medium degree of oligomerisation ( ) between 3 and 20 structural oxyethylene units (EO) in alkaline catalysis with monomer acrylonitrile, followed by a classical hydrogenation in heterogeneous catalysis of intermediary nitrile thus obtained, and finally alkyl quaternarisation of the polyetheramine obtained with methyl or alkyl (CH3 ÷ C16H33) chlorides to obtain. These are biodegradable in water plants, which ensure special ecologlcal features and high compatibility within the restrictive legal ensemble of a foodstuff processing integrated in an extremely polluted environment. Structures have real bacteriostatical abilities compared to a wide spectrum of microrganisms (tested in studies related to this paper). Low toxicity of polyoxyethylene chains (PEO) together with that of other structural units in this polyether cationic surfactants provide the studied glymes with a high compatibility in relation to environment and to plant and animal organisms of the food chain.
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