Banca de QUALIFICAÇÃO: THAÍS BEZERRA VERÍSSIMO MIGUEL

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : THAÍS BEZERRA VERÍSSIMO MIGUEL
DATE: 03/02/2023
TIME: 14:00
LOCAL: Via Google Meet
TITLE:

Development of biodegradable films from jackfruit starch (Artocarpus heterophillus Lam.) adding acerola residue (Malphigia ermaginata)

KEY WORDS:

starch, antioxidant, jackfruit, biodegradable film, acerola

PAGES: 115
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
SPECIALTY: Processos Bioquímicos
SUMMARY:

The environmental impact generated by the continuous use of inert material, originating exclusively from petroleum derivatives, has favored the increase in research aimed at the development of biodegradable films, as they have been investigated as promising strictures due to their safety, the versatility of use and obtainment. In addition, as primary packaging, these films can increase the shelf life of food, play active roles, regulate oxygen exchange rates, and moisture, improve sensory qualities, can play nutrient support roles, preserve bioactive, raising their quality and service life. The demand for new starch sources has been growing making the productive sector look for new Technologies, as well as natural starches with differentiated physicochemical characteristics. The objective of this work was develop  and characterize biodegradable active films from jackfruit seed starch (Artocapus heterophillus Lam), incorporated from acerola powder (Malphigia ermaginata) prepared by casting processes. In casting films, filmogenic solutions were prepared in fixed concentrations of jackfruit seed starch (4.0%), acerola powder (0.5 e 1.0%), and glycerol (2.0%). Initially, the physical-chemical, structural, and morphological characteristics of the jackfruit seed starch were evaluated. Subsequently, after drying in an oven and lyophilization, the acerola residue was used in the preparation of biodegradable films, comparing their active performance through the analysis of phenolic compounds and antioxidant activity. In addition, they were characterized in terms of water vapor permeability, solubility, humidity, thickness, and scanning electron microscopy (SEM). The results obtained showed that the films had a reasonable thickness ranging from 0.083 to 0.136 mm, high solubility (76.7% to 90.9%), and low permeability to water vapor and in the analysis of bioactive compounds it was proved that they have an active function and that how the acerola residue was dehydrated contributed to the results of these methodologies.

COMMITTEE MEMBERS:
Presidente - 1346198 - EVERALDO SILVINO DOS SANTOS
Externa ao Programa - 2378605 - CRISTIANE FERNANDES DE ASSIS - UFRNExterna ao Programa - 1803301 - KATIA NICOLAU MATSUI - UFRNExterno ao Programa - 027.194.253-38 - SÉRGIO DANTAS DE OLIVEIRA JÚNIOR