Banca de DEFESA: LARISSA ALMEIDA ANTUNES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LARISSA ALMEIDA ANTUNES
DATE: 23/01/2023
TIME: 09:00
LOCAL: remoto
TITLE:

Drying kinetics, physicochemical characterization and
toxicity of pink powder obtained from Bougainvillea glabra bracts forapplication as a natural cut in food.

KEY WORDS:

Keywords:natural dye, mathematical modeling, betalains, antioxidant.

PAGES: 121
BIG AREA: Ciências Agrárias
AREA: Ciência e Tecnologia de Alimentos
SUMMARY:

The appearance of food products is the first assessment and is decisive for the consumer's
purchase decision. Currently, the demand and preference of consumers for products
formulated with natural ingredients and additives, and that meet a trend observed in the
world food market, called clean label, has intensified. Brazil has a diversity of plants that
can be used as alternative sources of natural dyes of different shades, among which
unconventional food plants (PANC) stand out. Bougainvillea glabra is a PANC, popularly
known in Brazil as bougainvillea or spring, it has a rosy color in its bracts conferred by
betalains. Recognizing the demand for replacing synthetic dyes with natural dyes, the
objective of the present work was to perform a mathematical modeling of drying kinetics,
conventional and foam, of the powder obtained from the bracts of B. glabra and to
characterize it in terms of its antioxidant capacity. and content of phenolic compounds
and betalains and to evaluate the toxicity of the powder in natura from the bracts of B.
glabra, for use as a natural food coloring. As a result, the mathematical model that
obtained the best fit in bract drying was the Midilli model at 50°C. The pink powder
obtained from the bracts of B. glabra, which showed antioxidant potential, content of
betalains and phenolic compounds, and was not toxic, which justifies and proves its use
as a natural dye in food products.

COMMITTEE MEMBERS:
Interna - 1806986 - ELISA HELENA DA ROCHA FERREIRA
Interna - 1524368 - MARIA IVONE MARTINS JACINTHO BARBOSA
Externa à Instituição - RENATA OLIVEIRA SANTOS