Banca de QUALIFICAÇÃO: RODRIGO GUIMARÃES DE DEUS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RODRIGO GUIMARÃES DE DEUS
DATE: 24/09/2025
TIME: 09:30
LOCAL: Metapresencial
TITLE:

BETWEEN THE AGRICULTURAL FIELD AND THE LABORATORY: PROSPECTION OF ESSENTIAL OILS FROM PLANTS CULTIVATED IN RURAL COMMUNITIES IN SOUTHERN BAHIA

KEY WORDS:

Family Farming; Authenticity; Bioeconomy; Chemotype; Atlantic Forest; Sustainable Development.

PAGES: 84
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

The bioprospecting of essential oils emerges as a key strategy for the development of a sustainable bioeconomy, aligning the valorization of biodiversity with income generation for traditional communities. This dissertation aimed to prospect, characterize, and evaluate the potential of essential oils from plants cultivated in rural communities in Southern Bahia, integrating chemical analysis, quality control, and biological applications. The work was structured into four main axes: (1) Authentication by FTIR: Fourier-transform infrared spectroscopy (FTIR) demonstrated high effectiveness in detecting adulteration with vegetable oils (soybean and olive) in essential oils of Melaleuca alternifolia, Cymbopogon densiflorus, and Schinus terebinthifolius, proving to be a fast and low-cost tool to ensure quality and trust in the market. (2) Chemical Characterization: GC-MS analysis of Cymbopogon densiflorus (capim- nagô) oil revealed a unique and distinct chemotype, dominated by limonene (38.99%) and oxygenated monoterpenic alcohols such as trans-ρ-Mentha-2,8-dien-1-ol (13.73%) and cis-ρ- Mentha-1(7),8-dien-2-ol (10.51%), highlighting the influence of local ecological and genetic factors. In silico (ADME) prediction of the major compounds indicated a favorable pharmacokinetic profile but pointed out potential mitochondrial and ecological toxicities. (3) Antibacterial Activity and (4) Larvicidal Activity (Objectives to be developed). It is concluded that the essential oils from this region possess chemical uniqueness and relevant biotechnological potential. The integration of traditional community knowledge with modern analytical tools (FTIR and GC-MS) establishes a robust model for bioprospecting, capable of strengthening sustainable production chains, adding value to sociobiodiversity products, and contributing to biocultural conservation in the Atlantic Forest of Southern Bahia.

COMMITTEE MEMBERS:
Externo à Instituição - YGOR JESSÉ RAMOS - UFBA
Externo à Instituição - MASSUO JORGE KATO - UFBA
Presidente - 1955705 - GABRIELA NAREZI
Externa ao Programa - 1716815 - GISELE LOPES DE OLIVEIRA - null