Banca de DEFESA: OLÍVIA DOMINGUES RIBEIRO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : OLÍVIA DOMINGUES RIBEIRO
DATE: 31/10/2023
TIME: 08:00
LOCAL: Auditório Paulo Cavalcante Sala 10
TITLE:

Conservation, physicochemical properties, fatty acid profile and antioxidant activity of Pentaclethra macroloba (Willd.) O. Kuntze seed oil

KEY WORDS:

DPPH. Fatty acids. Imbibition. Pracaxi. Storage.

PAGES: 123
BIG AREA: Ciências Biológicas
AREA: Botânica
SUMMARY:

The Amazon oil seeds are ecologically correct economic alternative for the exploitation of non-timber resources as a source of natural wealth in the Amazon. Common in floodplain forests threatened by anthropic action, seeds and seedlings of Pracaxi (Pentaclethra macroloba) are highlighted both for their ecological role in the conservation and recovery of ecosystems, and for the potential use of the oil extracted from their seeds. However, the success in the production of seedlings and oils from native forest seeds depends substantially on the process that involves collection, storage and extraction methods suitable for the conservation of germinal viability and the chemical properties of the fats of the species involved. Thus, the objective of this work is to define quality parameters for the collection and storage of Pentaclethra macroloba (Willd.) O. Kuntze seeds, in order to preserve the germination power and the physicochemical and chemical properties of the fatty acids of the oil extracted from the seeds. Methods in seed technology will be used for the treatment of the material collected, in order to test the hypothesis that the systematized process from collection to oil extraction contributes to the maintenance of the germination potential, physical-chemical and chemical properties of the oil from its seeds. The results will be divided into three chapters; in the first, the classification of Pracaxi seeds regarding tolerance, desiccation, storage and the effect of seed size on germination and vigor will be dealt with; the second will analyze the influence of time, temperature and humidity factors on the physiological quality of seeds during storage; while the third chapter will test the oil mass yield from the cold extraction technique, as well as the differences in the chemical profile of fatty acids and physicochemical and in the antioxidant activity of the oil extracted from seeds submitted to different storage conditions. At the end of this research, a booklet will be produced with guidelines for the systematization of the treatment of Pracaxi seeds, for the purposes of seedling production and quality oil extraction. With this, it is expected to expand the knowledge base on the species, subsidize the use of Pracaxi in reforestation programs and in the recovery of degraded areas, in addition to contributing to the better use of Pracaxi seeds by extractive communities.

BANKING MEMBERS:
Externa à Instituição - MARCILENE PAIVA DA SILVA - MPEG
Externa ao Programa - 2895762 - BARBARA RODRIGUES DE QUADROS
Externa ao Programa - 1619957 - CLENES CUNHA LIMA
Externa ao Programa - 1740947 - DENMORA GOMES DE ARAUJO
Presidente - 377.382.402-53 - ELY SIMONE CAJUEIRO GURGEL - MPEG
Externo à Instituição - ENIEL DAVID CRUZ - EMBRAPA
Externa à Instituição - Glauciana da Mata Ataíde - UFSJ