Patents by Inventor Adem Gharsallaoui

Adem Gharsallaoui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8012263
    Abstract: A process for preparing maltitol crystals by evapocrystallization, includes preparing a maltitol solution with a maltitol richness of at least 85% based on dry matter, preferably a maltitol richness of between 89% and 99% based on dry matter, and even more preferably a maltitol richness of between 93% and 95% based on dry matter; concentrating under vacuum maltitol solution in the evapocrystallizer so as to obtain a maltitol syrup whose degree of maltitol supersaturation is within the metastable zone of maltitol; seeding the supersaturated maltitol solution with a maltitol seed crystal in dispersed form; performing the crystallization while keeping constant the degree of maltitol supersaturation within the metastable zone of maltitol by controlling the conditions of temperature, the conditions of vigorous stirring by pumping of the evaporation vapors, and the conditions of feeding in of the maltitol syrup to be crystallized; and recovering the crystals thus obtained.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: September 6, 2011
    Assignee: Roquette Freres
    Inventors: Manuel Barata, Pierrick Duflot, Adem Gharsallaoui, Mohamed Mathlouthi
  • Publication number: 20090114214
    Abstract: A process for preparing maltitol crystals by evapocrystallization, includes preparing a maltitol solution with a maltitol richness of at least 85% based on dry matter, preferably a maltitol richness of between 89% and 99% based on dry matter, and even more preferably a maltitol richness of between 93% and 95% based on dry matter; concentrating under vacuum maltitol solution in the evapocrystallizer so as to obtain a maltitol syrup whose degree of maltitol supersaturation is within the metastable zone of maltitol; seeding the supersaturated maltitol solution with a maltitol seed crystal in dispersed form; performing the crystallization while keeping constant the degree of maltitol supersaturation within the metastable zone of maltitol by controlling the conditions of temperature, the conditions of vigorous stirring by pumping of the evaporation vapors, and the conditions of feeding in of the maltitol syrup to be crystallized; and recovering the crystals thus obtained.
    Type: Application
    Filed: October 29, 2008
    Publication date: May 7, 2009
    Applicant: ROQUETTE FRERES
    Inventors: Manuel BARATA, Pierrick DUFLOT, Adem GHARSALLAOUI, Mohamed MATHLOUTHI