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EVALUATION OF CATHARINA SOUR, FIRST BRAZILIAN BEER STYLE, AS A PROBIOTIC BEVERAGE BY APPLICATION OF REAL-TIME PCR TECHNIQUES AND MALDI-TOF

Grant number: 19/02583-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): August 01, 2019
Effective date (End): July 31, 2022
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Technology
Principal researcher:Susana Marta Isay Saad
Grantee:Marcos Edgar Herkenhoff
Home Institution: Faculdade de Ciências Farmacêuticas (FCF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:13/07914-8 - FoRC - Food Research Center, AP.CEPID
Associated scholarship(s):21/08621-0 - Metabolic and flavoring analysis by HS-SPME/GC-MS to characterize Catharina sour-style ale craft beer with probiotic strain Lacticaseibacillus paracasei subs. paracasei F19, BE.EP.PD

Abstract

The central core of all civilization is always the cultivation of some kind of grain and all civilization initiated by the accidental discovery of some fermented drink from grains. The history of beer is well documented in Mesopotamia, being brought to Europe around 3000 BC. It is the third most popular drink in the world, and there is currently a boom of craft beers in the world. In Brazil, there was a growth of 91% in 3 years. Due to its properties as a fermented beverage, beer requires the activity of microorganisms, and one of the novelties are beers as probiotic beverages. Sour beers are produced intentionally so that they taste slightly more acidic, tartar or sour. berliner weisse is a good representative of this group. This beer style is known to brew with a lactic fermentation promoted by bacteria of the genus Lactobacillus spp. With inspiration in the berliner weisse, and attending its characteristics, the first style of Brazilian beer, catharina sour, was developed. This style of beer, like berliner weisse, is commonly consumed with the addition of fruit juice to soften its acidity. Although it was developed in 2016, it has been observed that catharina sour has a higher content of vitamin C, flavonoids, and tannins compared to other styles. However, its probiotic potential has not yet been evaluated. Thus, this study aims to evaluate the viability of catharina sour as a beverage with probiotic properties. Through the real-time PCR technique, the growth dynamics of Lactobacillus plantarum and Lactobacillus buchneri during the manufacturing and storage process of catharina sour will be evaluated, as well as the expression profiles of the following genes will be compared: horA, horB, horC, hitA, and bsrA, which are known to confer resistance to hops. By means of proteomic analyzes, the protein composition will be characterized in order to detect potential variations between the samples by the MALDI-TOF and shotgun techniques.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BATTISTINI, CAROLINA; HERKENHOFF, MARCOS EDGAR; LEITE, MARCELA DE SOUZA; SILVA VIEIRA, ANTONIO DIOGO; BEDANI, RAQUEL; ISAY SAAD, SUSANA MARTA. Brewer's Spent Grain Enhanced the Recovery of Potential Probiotic Strains in Fermented Milk After Exposure to In Vitro-Simulated Gastrointestinal Conditions. PROBIOTICS AND ANTIMICROBIAL PROTEINS, SEP 2021. Web of Science Citations: 0.
PARIZOTTO, LETICIA DE ALMEIDA; KLEINGESINDS, EDUARDO KREBS; PEDROTTI DA ROSA, LUIZA MANFRINATO; EFFER, BRIAN; LIMA, GUILHERME MEIRA; HERKENHOFF, MARCOS EDGAR; LI, ZHAOPENG; RINAS, URSULA; MONTEIRO, GISELE; PESSOA, ADALBERTO; TONSO, ALDO. Increased glycosylated L-asparaginase production through selection of Pichia pastoris platform and oxygen-methanol control in fed-batches. Biochemical Engineering Journal, v. 173, SEP 2021. Web of Science Citations: 0.
BATTISTINI, CAROLINA; BALLAN, RAFAEL; HERKENHOFF, MARCOS EDGAR; SAAD, SUSANA MARTA ISAY; SUN, JUN. Vitamin D Modulates Intestinal Microbiota in Inflammatory Bowel Diseases. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, v. 22, n. 1 JAN 2021. Web of Science Citations: 6.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.