Banca de QUALIFICAÇÃO: RAFAEL SEPÚLVEDA FONSÊCA TREVISAN PASSOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAFAEL SEPÚLVEDA FONSÊCA TREVISAN PASSOS
DATA : 31/01/2020
HORA: 08:00
LOCAL: Sala 06 - Faculdade de Farmácia
TÍTULO:

Effect of green ta (Camellia sinensis) extract on chicken burgers during refrigerated storage

PALAVRAS-CHAVES:

Antimicrobial activity, antioxidant activity, natural extracts, lipid oxidation, meat products

PÁGINAS: 29
GRANDE ÁREA: Ciências Agrárias
ÁREA: Ciência e Tecnologia de Alimentos
SUBÁREA: Tecnologia de Alimentos
ESPECIALIDADE: Tecnologia de Produtos de Origem Animal
RESUMO:

This study aimed to evaluate the addition of green tea extract (GTE) in chicken burgers and their impact on physicochemical and sensory properties. Initially, five different extracts were done with different conditions of extraction. The extraction conducted with 75% ethanol as solvent and 15 min at 80 ºC conditions (E1) showed higher total phenolic and flavonoid contents and 75.73% of inhibition of DPPH radical. Then, this extract was chosen for application in chicken burgers at 0.5% (GT-0.5) and 1.0% (GT-1.0) levels and analyzed during refrigerated storage for 10 days. Lower cooking yields have been found in GT-1.0 treatment when compared to GT-0.5 and control (FC) treatments. The incorporation of higher levels of GTE (1.0%) also affected texture properties of chicken burgers and lower hardness values have been observed. GTE was effective to delay lipid oxidation of chicken burger during 10 days of refrigerated storage. However, a pro-oxidant effect was observed on first days of storage. GT-1.0 treatments showed lower counts of mesophilic, psychrotrophic, coliform and Gram-positive cocci bacteria until the day 7 of storage. Color attributes were also affected by GTE addition and lower lightness and redness parameters were observed, and as consequence, color was also affected in sensory analysis.

MEMBROS DA BANCA:
Presidente - 2358665 - CARLOS PASQUALIN CAVALHEIRO
Interno - 4725209 - CAROLINA OLIVEIRA DE SOUZA
Interno - 1299891 - MARIANA NOUGALLI ROSELINO