Made available in DSpace on 2014-12-17T15:42:04Z (GMT). No. of bitstreams: 1 LucianeLT_DISSERT.pdf: 3099685 bytes, checksum: cf9ca201e507efce1126bfa70e5a1f3b (MD5) Previous issue date: 2012-03-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This study conducted chemical analyzes of the fruits of Licania tomentosa Benth belonging to the Chrysobalanaceae family, order and superorder Rosiflorae Rosales. Samples were collected in February 2011 in the city of Natal - RN. The fruits were separated into peel, pulp and seed, and the samples were analyzed on moisture and ash by thermogravimetric methods, reducing and total sugars, lipids by Soxhlet extraction, minerals by ICP / OES and other analyzes by physical measurements of the fruit. The fruits for the analysis of determination of flavonoids and phenolic compounds were dried at 40 ? C and ground. For the analyzes to determine the content of phenolics and flavonols was used spectroscopy in the visible region, and also performed the characterization of ethanol extracts by high performance liquid chromatography and test for antioxidant activity hydroethanolic extracts. The results obtained are about 83.9% of the fruits have a length between 4.0 to 6.0 cm with respect to the diameter of the fruit about 97.4% of the fruits have a diameter between 2.0 - 4, 0 cm, mean weight of 36.14 g (7.86), the bark showed 60.5 (1.5)% relative humidity, the flesh 72.3 (0.9) and 44.4 seeds (0.4 )%, the bark showed 0.22 (0.00)% ash, the pulp 1.41 (0.01)% and the seed 1.18 (0.01)%, the bark showed 3.73 (0, 09) mg lipids / 100 g sample of the pulp 0.40 (0.04) and the seed 0.05 (0.00). With respect to reducing sugars and total gave the results, 16.23 (0.23) g/100g and 20.70 (0.24) g/100g. The fruit is presented with a good source of nutrients especially carbohydrates and lipids. The analysis for determining the antioxidant activity tests were performed reducing power and antioxidant capacity, the antioxidant capacity of hydroethanolic extracts of peel and pulp showed similar results, with higher concentrations however hydroethanolic bark extract. Regarding the content of phenolics and flavonoids hidroetan?lico bark extract showed higher concentration values. The characterization of the extracts by high performance liquid chromatography identified the following compounds by retention time indicated by the race of the standards: galic acid, kaempferol and kaempferol derivatives. Considering the results of the fruit Licania tomentosa Benth may be an alternative food by analysis of their nutritional content and has substances with antioxidant action / O presente trabalho realizou das an?lises bromatol?gicas com os frutos da Licania tomentosa Benth que pertence ? fam?lia Chrysobalanaceae, ordem Rosales e superordem Rosiflorae. As amostras foram coletadas no m?s de fevereiro de 2011 no munic?pio de Natal RN. Os frutos foram fracionados em casca, polpa e semente, e com as amostras foram realizadas as determina??es de umidade e cinzas por m?todos termogravim?tricos, a??cares redutores e totais, lip?deos por extra??o com Soxhlet, minerais por ICP/OES e demais an?lises por medi??es f?sicas dos frutos. Os frutos destinados as an?lises de determina??o do teor de flavon?ides e fen?licos totais foram secos a 40?C e triturados. Para as an?lises de determina??o do teor de fen?licos e flavon?is totais se utilizou a espectroscopia na regi?o do vis?vel, sendo tamb?m realizada a caracteriza??o dos extratos etan?licos por cromatografia l?quida de alta efici?ncia e teste de atividade antioxidante para os extratos hidroetan?licos. Como resultados obteve-se cerca de 83,9% dos frutos apresentaram comprimento entre 4,0 6,0 cm, com rela??o ? determina??o do di?metro dos frutos cerca de 97,4 % dos frutos apresentaram di?metro entre 2,0 4,0 cm, peso m?dio de 36,14 (7,86) g, a casca apresentou 60,5 (1,5)% de umidade, a polpa 72,3 (0,9) e a semente 44,4 (0,4)%, a casca apresentou 0,22 (0,00) % de cinzas, a polpa 1,41(0,01)% e a semente 1,18(0,01)%, a casca apresentou 3,73 (0,09)mg de lip?deos/ 100 g de amostra, a polpa 0,40(0,04) e a semente 0,05(0,00). Com rela??o aos teores de a??cares redutores e totais obteve-se os respectivos resultados, 16,23 (0,23) g/100g e 20,70(0,24) g/100g. O fruto se apresenta com uma boa fonte de nutrientes principalmente carboidratos e lip?deos. As an?lises de determina??o da atividade antioxidante realizadas foram os testes de poder redutor e capacidade antioxidante, a capacidade antioxidante dos extratos hidroetan?licos da casca e da polpa apresentaram resultados semelhantes, sendo entretanto superior as concentra??es do extrato hidroetan?lico da casca. Com rela??o ao teor de fen?licos e flavon?ides totais o extrato hidroetan?lico da casca apresentou valores de concentra??o superiores. Na caracteriza??o dos extratos por cromatografia l?quida de alta efici?ncia foram identificados os seguintes compostos por meio do tempo de reten??o indicado pela corrida dos padr?es: ?cido g?lico, campferol e derivados. Diante dos resultados o fruto da Licania tomentosa Benth pode ser uma alternativa de alimento mediante a an?lise de seu conte?do nutricional e por possuir subst?ncias com a??o antioxidante