O objetivo deste trabalho foi caracterizar pseudofrutos de Hovenia dulcis Thunb. da mesorregião do Campus das Vertentes Minas Gerais quanto aos compostos físicos, físico-químicos e bioativos. Os frutos maduros de Hovenia dulcis foram colhidos nas cidades de Santana do Garambéu (SG) e Barbacena (BC), sendo avaliados quanto a cor, firmeza, pH, cinzas, acidez titulável, sólidos solúveis, ratio, umidade, fenólicos totais, vitamina C, antocianina, carotenoides e minerais. Os resultados obtidos foram submetidos ao teste de Tukey pelo programa Sisvar. A análise estatistica dos resultados não identificou diferença significative nos pseudofrutos quanto a cor a* (3,43), firmeza (2,32 N), pH (5,43), umidade (60,2 g/100 g) e cinzas (1,52 g/100 g). Os pseudofrutos de SG apresentaram uma coloração mais escura L* (26,50) e mais amarelado b* (3,79), maior acidez titulável (0,38 g/100 g), compostos fenólicos (875,15 mg GAE/100g), vitamina C (117,06 mg/100g) e carotenoids totais (0,612 mg/100 g). Já os pseudofrutos de BC apresentaram maior teor de SS (47,66 mg/100 g) e relação SS/AT (178,42). Os pseudofrutos de BC apresentaram maior teor dos minerais N, K, Ca, Mg, Mg, enquanto os de SG apresentaram maior porcentagem de P e Zn. Conclui-se que o pseudofruto é uma boa fonte de compostos bioativos e minerais, indicando grande potencial para o desenvolvimento de alimentos processados. Palavras-chave: Hovenia dulcis Thunb. Pseudofrutos. Uva japonesa. Compostos bioativos. Minerais. Pseudofrutos de Hovenia dulcis Thunb. de Minas Gerais Abstract The objective of this work was to characterize the pseudofruits of Hovenia dulcis Thunb. in the mesoregion of Campus das Vertentes - Minas Gerais in regard to their physical, physical-chemical, and bioactive compounds. Ripe fruits of Hovenia dulcis were collected in the cities of Santana do Garambéu (SG) and Barbacena (BC), being evaluated for color, firmness, pH, ash, titratable acidity, soluble solids, ratio, moisture, total phenolics, vitamin C , anthocyanin, carotenoids and minerals. The results obtained were admitted to the Tukey test by the Sisvar program.The statistical analysis of the results did not identify significant differences in the pseudofruits in regard to color, a* value (3.43), firmness (2.32 N), pH (5.43), moisture (60.2 g/100 g), and ashes (1.52 g/100 g). SG pseudofruits showed both darker L* (26.50) and yellowish b* (3.79) colors, and higher levels of titratable acidity (0.38 g/100 g), phenolic compounds (875.15 mg GAE/100 g), Vitamin C (117.06 mg/100 g) and total carotenoids (0.612 mg/100 g). BC pseudofruits, on the other hand, had a higher SS content (47.66 mg/100 g), and SS/TA ratio (178.42). The minerals of BC pseudofruits showed a higher content of N, K, Ca, Mg, and Mn, whereas SG’s showed a higher percentage of P and Zn. It is concluded that the pseudofruit is a good source of bioactive compounds and minerals, indicating great potential for the development of processed foods. Keywords: Hovenia dulcis Thunb. Pseudofruit. Japanese grape. Bioactive compounds. Minerals.
O objetivo desta pesquisa foi avaliar seis cultivares de pessegueiro produzidas nos Campo das Vertentes, quanto aos compostos físicos, físico-químicos e bioativos. Foram avaliadas as cultivares Aurora, Top Bilt, Fascínio, “PS", Campari e Maciel. As análises realizadas foram: cor, pH, acidez titulável, sólidos solúveis (SS), firmeza, carotenoides, compostos fenólicos totais, antocianinas e vitamina C. Os resultados indicaram que houve diferença significativa entre todas as cultivares de pêssego em todos os parâmetros avaliados. Quanto à coloração, as cultivares mais claras foram Maciel e PS. Todas as amostras apresentaram valores de a* e b* indicando uma cor amarela avermelhada. O pH oscilou entre 3,68 e 4,72, enquanto a acidez titulável ficou entre 0,38% e 2,26%, sendo a cultivar Campari a mais ácida e Aurora a menos ácida. O SS das cultivares ficou entre 5,33% (PS) e 12,66% (Aurora). A cultivar mais firme foi a Top Bilt. O teor de Compostos Fenólicos não diferiu entre as cultivares, com média de 2,79 mg/100 g. Quanto às antocianinas, Aurora e Fascínio obtiveram os maiores teores (média de 12,82 mg/100 g). A cultivar Maciel apresentou o maior teor de vitamina C (29,35 mg/100 g). Concluiu-se que a cultivar Top Bilt apresentou coloração mais amarelada e firme, Fascínio obteve maior pH, Campari maior acidez, Aurora maior teor de SS. Quanto aos compostos bioativos, a cultivar Maciel se destaca por possuir maior teor de carotenoides e vitamina C. Palavras-chave: Prunus persica L. Batsh. Compostos bioativos, coloração, cultivares, análises físico-químicas. Temperate climate peach cultivars - Campo of Vertentes - MG Abstract The objective of this research was to evaluate six peach cultivars produced in Campo das Vertentes in terms of physical, physical-chemical and bioactive compounds. The cultivars Aurora, Top Bilt, Fascínio, PS, Campari and Maciel were evaluated. The analyzes performed were color, pH, titratable acidity, soluble solids (SS), firmness, carotenoids, total phenolic compounds, anthocyanins and vitamin C. The results indicated that there was a significant difference among all peach cultivars in all evaluated parameters. Regarding the coloration, the lightest cultivars were Maciel and PS. All samples had a* and b* values indicating a reddish yellow color. The pH fluctuated between 3.68 and 4.72, whereas the titratable acidity was between 0.38% and 2.26%, with the Campari cultivar being the most acidic and Aurora the least acidic. The SS of the cultivars was between 5.33% (PS) and 12.66% (Aurora). The firmest cultivar was Top Bilt. The content of Phenolic Compounds did not differ among cultivars, with an average of 2.79 mg/100 g. As for anthocyanins, Aurora and Fascínio obtained highest levels (average of 12.82 mg/100 g). The Maciel cultivar had the highest vitamin C content (29.35 mg/100 g). It was concluded that the Top Bilt cultivar had a more yellowish and firmer color, Fascínio obtained a higher pH, Campari had higher acidity, Aurora had a higher SS content. As for bioactive compounds, the Maciel cultivar is stands out for having a higher content of carotenoids and vitamin C. Keywords: Prunus persica L. Batsh. Bioactive compounds, coloration, cultivars, physicochemical analysis.
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