Banca de DEFESA: CARLOS ANANIAS APARECIDO RESENDE

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CARLOS ANANIAS APARECIDO RESENDE
DATE: 02/06/2021
TIME: 08:30
LOCAL: Campus Centro Oeste Dona Lindu
TITLE:

Evaluation of Total Tannin Content in Fruit Pulps by Spectrophotometric Method

KEY WORDS:

 Tannins, Polyphenols, Phenolic Compounds, fruit

 

PAGES: 100
BIG AREA: Ciências da Saúde
AREA: Farmácia
SUMMARY:

The use of fruit pulps, leaves and peels generates products that can be useful for isolating complex molecules with application in nutraceutical supplements, dietary additives, new pharmaceutical and food products. The development of spectrophotometric methods for the quantification of phenolic compounds in food makes it possible to evaluate the quality of these natural products according to the active compounds they have. This study aimed to evaluate the levels of total tannins in fruits using a spectrophotometric method. In this work, the tannins were extracted using the turbo-extraction method, using different extractive solutions, and subsequently the determination of total phenolics and total tannins was performed using the Folin - Ciocalteau method. The fruit samples evaluated were: banana (Musa sp.), Guava (Psidium guajava) and grape (Vitis vinifera). The ethanol: water extraction process showed the highest yield in the extraction of tannins in most of the evaluated samples. However, the peel of P. guajava and the pulp of M. indica obtained the highest levels of tannins when the solvent system was composed of acetone: water. Thus, it was possible to conclude that the ethanol: water solvent system would be the solvent system of choice to obtain the highest levels of phenolic compounds in the fruits used in this study.

BANKING MEMBERS:
Presidente - 1908201 - JOAQUIM MAURICIO DUARTE ALMEIDA
Externa ao Programa - 1757957 - ANA JULIA PEREIRA SANTINHO GOMES
Externo ao Programa - 1150851 - RENE OLIVEIRA DO COUTO
Externa à Instituição - NATHÁLIA LUCCA SILVA - UNA