Caracterização e aplicação de farinhas e féculas de Lírio-do-brejo (Hedychium coronarium koen), Algodãozinho-do-campo (Cochlospermum regium) e Batata-de-teiú (Jatropha elliptica (Pohl) Muell Arg.)

• Ano de defesa: 2018
• Autor(a) principal: Bento, Juliana Aparecida Correia
• Orientador(a): Soares Júnior, Manoel Soares
• Banca de defesa: Soares Júnior, Manoel Soares, Bassinello, Priscila Zaczuk, Rodriguez, Armando Garcia
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EA)
• Departamento: Escola de Agronomia - EA (RG)
• País: Brasil
• Palavras-chave em Português: Propriedades térmicas do amido; RMN; Fatores antinutricionais; Antioxidantes; Toxicidade
• Palavras-chave em Inglês: Thermal properties of starch; NMR; Anti-nutritional factors; Antioxidants; Toxicity
• Área do conhecimento CNPq: CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/8559

Cochlospermum regium, a native plant of the Brazilian Cerrado, known as “Algodãozinho-do- campo”, is used in folk medicine for the treatment of infections and inflammation. Jatropha elliptica (Pohl) Muell Arg is a plant belonging to the Euphorbiaceae family, native to the Brazilian Cerrado, and popularly known as "Batata-de-teiú". There is a lack of scientific knowledge about the physico-chemical and technological aspects of Jatropha elliptic and its possible applications, in foods and or medicines. Hedychium coronarium Koen, native to Nepal, is considered an invasive plant in Brazil, as it presents rapid and negative growth for plant biodiversity. Rhizomes are man-made due to their medicinal properties, such as the treatment of headache, cancer and inflammation, but it can also be a potential source for starch extraction. Algodãozinho-do-campo, Batata-de-teiú and lírio-do-brejo are rhizomatous plants with the potential to obtain starch and flour. The objective of this work was to contribute with unpublished data on the characterization of flour and starch with a probable functional value, extracted from Hedychium coronarium Koen, Cochlospermum regium and Jatropha elliptica (Pohl) Muell Arg, as well as the application of these products as substrate in the semi-solid fermentation, aiming the production of enzymatic extracts, and to evaluate the effect of the ultrasound on the lírio-do-brejo starch. The extracted starches present peculiar technological characteristics, being: the algodãozinho-do-campo starch under cooking temperature absorbs less water and solubilizes less than the corn starch, maintaining more the structure of the granules in the final product, being able to contribute to the improvement of final product texture; the batata-de-teiú starch had a low tendency to retrograde; the lírio- do-brejo starch presented high amylose content (about 59.16%), crystallinity of 19.30%, and when it was submitted to ultrasound for 15 min at 62% intensity and 12.5 g 100g-1 an increase in viscosity peak (from 1917 to 2257 cP) and reduction in tendency to retrograde (from 2079 to 1295 cP) was observed. The flours presented peculiar nutritional characteristics, antioxidant capacity, presence of phenolic compounds, low toxicity in Artêmia salina, presence of antinutritional factors, and were not efficient for the production of enzymatic extracts by semi-solid fermentation. It is concluded that they are plants with potential to obtain starch and flour.