Synopsis Objectives The purpose of this work was the qualitative characterization of a recently transesterification product obtained from the coconut oil in the presence of polyglycerol-6 to produce a new PEG-free secondary surfactant. The purpose of a secondary surfactant is to reduce the harshness of a skin cleanser. Methods The transesterification product was qualitatively characterized in our laboratory by flow injection analysis-atmospheric pressure chemical ionization-mass spectrometry (FIA-APCI-MS). The mass spectrum of the transesterification product was compared to those of the starting materials (polyglycerol and coconut oil). Results The analyses highlighted the disappearance of the starting oil peaks and the appearance of new peaks assignable to the reaction products, mainly corresponding to diesters of polyglycerol. Additionally, peaks of unreacted polyglycerol are present as well as peaks of cyclization products derived from the polyglycerol starting material. Conclusions The development of this fast and easy analytical method, requesting only few minutes to be performed, represents a very useful tool for the characterization of transesterification products during the quality control of batches under production.

Qualitative characterization of a transesterification product of coconut oil by FIA-APCI-MS.

RICCIUTELLI, Massimo;CORTESE, Manuela;CENSI, Roberta;DI MARTINO, Piera
2015-01-01

Abstract

Synopsis Objectives The purpose of this work was the qualitative characterization of a recently transesterification product obtained from the coconut oil in the presence of polyglycerol-6 to produce a new PEG-free secondary surfactant. The purpose of a secondary surfactant is to reduce the harshness of a skin cleanser. Methods The transesterification product was qualitatively characterized in our laboratory by flow injection analysis-atmospheric pressure chemical ionization-mass spectrometry (FIA-APCI-MS). The mass spectrum of the transesterification product was compared to those of the starting materials (polyglycerol and coconut oil). Results The analyses highlighted the disappearance of the starting oil peaks and the appearance of new peaks assignable to the reaction products, mainly corresponding to diesters of polyglycerol. Additionally, peaks of unreacted polyglycerol are present as well as peaks of cyclization products derived from the polyglycerol starting material. Conclusions The development of this fast and easy analytical method, requesting only few minutes to be performed, represents a very useful tool for the characterization of transesterification products during the quality control of batches under production.
2015
Resume ObjectifsLe but de ce travail etait la caracterisation qualitative d'un produit de transesterification recemment obtenu a partir de l'huile de noix de coco en presence de polyglycerol-6 pour produire un nouveau tensioactif secondaire sans PEG, ce dernier generalement ajoute pour reduire l'agressivite d'un nettoyant pour la peau. MethodesLe produit de transesterification a ete qualitativement caracterise dans notre laboratoire par Analyse du Debit d'injection - par Ionisation chimique a Pression atmospherique - par Spectrometrie de masse (FIA-APCI-MS). Le spectre de masse du produit de transesterification a ete compare a ceux des materiaux de depart (de polyglycerol et d'huile de noix de coco). ResultatsLes analyses ont mis en evidence la disparition des pics d'huile de depart et l'apparition de nouveaux pics attribuables a des produits de reaction, correspondant principalement a des diesters de polyglycerol. De plus, les pics de polyglycerol non reagi sont presents ainsi que des pics de produits de cyclisation provenant de la matiere de depart de polyglycerol. ConclusionsLe developpement de cette methode d'analyse rapide et facile represente un outil tres utile pour la caracterisation des produits de transesterification pendant le controle de la qualite des lots en production.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/372781
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