Patents by Inventor Juliana Vaz Bevilaqua

Juliana Vaz Bevilaqua 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).

  • Process for producing ethanol from a hydrolysate of the hemicellulose fraction of sugarcane bagasse in a press reactor
    Patent number: 8642289
    Abstract: The invention is a process for producing ethanol from sugarcane bagasse, the principal steps of which are mild sulphuric acid hydrolysis of the hemicellulose fraction of the sugarcane bagasse, followed by extraction of the hydrolysate and then fermentation thereof with the yeast Pichia stipitis. The process can be carried out with different solid : liquid ratios, and provides a step of acclimatizing the Pichia stipitis yeast, which results in a greater rate of ethanol production. The process takes place in a press reactor specially designed for this purpose, which allows more efficient extraction of the hydrolysate and, as a consequence, better process performance.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 4, 2014
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Lidia Maria Melo Sant'Anna, Nei Pereira, Gabriel Jaime Vargas Bitancur, Juliana Vaz Bevilaqua, Absai da Conceicao Gomes, Emerson Pires Menezes
  • PROCESS FOR PRODUCTION OF LIPASES BY GENETIC MODIFICATION OF YEAST
    Publication number: 20110183400
    Abstract: The present invention relates to the construction of optimized synthetic lipase gene expression vectors for the high level expression of recombinant lipases in the yeast. The invention provides an enzymatic approach to the industrial processing of by-products resulting from biodiesel production.
    Type: Application
    Filed: December 17, 2010
    Publication date: July 28, 2011
    Applicant: PETROLEO BRASILEIRO S.A.- PETROBRAS
    Inventors: Aline Machado de Castro, Juliana Vaz Bevilaqua, Denise Maria Guimarães Freire, Fernando Araripe Goncalves Torres, Lídia Maria Melo Sant'anna, Melissa Limoeiro Estrada Gutarra, Caroline Alexandre Barbosa, Rodrigo Volcan Almeida, Reginaldo Ramos de Menezes, Aline Gomes Cunha
  • PROCESS FOR PRODUCING ETHANOL FROM A HYDROLYSATE OF THE HEMICELLULOSE FRACTION OF SUGARCANE BAGASSE IN A PRESS REACTOR
    Publication number: 20100273228
    Abstract: The invention is a process for producing ethanol from sugarcane bagasse, the principal steps of which are mild sulphuric acid hydrolysis of the hemicellulose fraction of the sugarcane bagasse, followed by extraction of the hydrolysate and then fermentation thereof with the yeast Pichia stipitis. The process can be carried out with different solid : liquid ratios, and provides a step of acclimatizing the Pichia stipitis yeast, which results in a greater rate of ethanol production. The process takes place in a press reactor specially designed for this purpose, which allows more efficient extraction of the hydrolysate and, as a consequence, better process performance.
    Type: Application
    Filed: July 3, 2007
    Publication date: October 28, 2010
    Inventors: Lidia Maria Melo Sant'Anna, Nei Pereira, Gabriel Jamie Vargas Bitancur, Juliana Vaz Bevilaqua, Absai da Conceicao Gomes, Emerson Pires Menezes