Banca de DEFESA: MONALISA SANTANA COELHO DE JESUS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MONALISA SANTANA COELHO DE JESUS
DATE: 25/06/2021
TIME: 09:00
LOCAL: google meet
TITLE:

Acylated anthocyanins from organic purple-fleshed sweet potato (Ipomoea batatas (L.) Lam) produced in Brazil

KEY WORDS:

Key words: phenolic, mass spectrometry, natural dye, antioxidant

PAGES: 43
BIG AREA: Ciências Agrárias
AREA: Ciência e Tecnologia de Alimentos
SUBÁREA: Ciência de Alimentos
SPECIALTY: Química, Física, Fisico-Química e Bioquímica dos Alim. e das Mat-Primas Alimentares
SUMMARY:

 Acylated anthocyanins from a purple-fleshed sweet potato (PFSP), obtained by
organic cultivation in Brazil, were characterized after separation by a high performance liquid
chromatography-diode array detector (HPLC-PDA). These anthocyanins were manually collected

at the detector output, concentrated and injected into a high resolution mass spectrometer (ESI-
QTOF-MS2). Twenty-two acylated anthocyanins were detected. Among them, sixteen had been

reported in the literature and six, derived from peonidin were reported for the first time in sweet
potato roots in this study. These compounds showed molecular ions with accurate mass/charge
ratios (m/z) of 909.2081, 961.3010, 961.2571, 963.3345, 1123.2932 and 1179.3862.
Although anthocyanins in PFSP have already been extensively studied, the variety studied in this
work is probably genetically different from all varieties and cultivars already researched, which
would explain why these anthocyanins have not been observed in the previously studied varieties.

 

BANKING MEMBERS:
Interno - 009.412.587-26 - CARLOS WANDERLEI PILER DE CARVALHO - EMBRAPA
Interna - 1524368 - MARIA IVONE MARTINS JACINTHO BARBOSA
Interno - 507.802.047-00 - RONOEL LUIZ DE OLIVEIRA GODOY - EMBRAPA
Externo à Instituição - ANTONIO LUIZ DOS SANTOS LIMA - IME
Externa à Instituição - ANA CRISTINA MIRANDA SENNA GOUVEA - UNIRIO