Search

Teve-se por objetivo o aprofundamento do conhecimento sobre a qualidade dos méis produzidos na região Sul do Rio Grande do Sul, especialmente a sua manutenção em relação à estabilidade durante a estocagem. Made available in DSpace on 2020-06-03T04:43:09Z (GMT). No. of bitstreams: 1 8841-23174-1-PB.pdf: 440060 bytes, checksum: 8d62fecbf5956921178c555668167b5a (MD5) Previous issue date: 2020

‘BRS F183’ (Potira) is a late-maturing and red skin potato cultivar, suitable for French fry processing, due to tuber high dry matter content of long oval shape, large size, light yellow flesh, and light fry color. It is also suitable for the fresh market due to its attractive tubers of intense red color, smooth skin and shallow eyes. In six trials, ‘BRS F183’ showed average tuber yields that did not differ from ‘Asterix’. The marketable yield was relatively high, reaching 98.5% in the tropical ecosystem. Larger tubers of ‘BRS F183’ than ‘Asterix’ were also observed in the autumn crop of the subtropical ecosystem. In most of the trials, the dry matter content was higher than that of ‘Asterix’, varying from 20.5 to 23.0%. A very low incidence of tuber disorders was observed in ‘BRS F183’, with the secondary growth lower than ‘Asterix’. ‘BRS F183’ presented medium tuber dormancy. Tuber glucose content suitable for French fry processing (≤1.2 mg g-1 of fresh mass) was shown by ‘BRS F183’ after harvest and storage at 7.5°C, 8.9°C and 20°C for up to 180 days, while ‘Asterix’ was suitable up to 120 days after storage at 8.9ºC. ‘BRS F183’ is moderately resistant to early blight and moderately susceptible to late blight. It is susceptible to PVY, PLRV, and root-knot nematode. Field observations indicate that resistance/susceptibility to soft rot, black scurf, and bacterial wilt of ‘BRS F183’ is not different from the main cultivars grown in the country. However, higher susceptibility to common scab was shown in some validation tests. ‘BRS F183’ was released in 2020 by Embrapa, as a product of the breeding program developed by Embrapa Temperate Agriculture and Embrapa Vegetables. RESUMO ‘BRS F183’ (Potira) é uma cultivar de batata de maturidade tardia e película vermelha, adequada ao processamento de palitos pré-fritos, devido ao alto teor de matéria seca dos tubérculos de formato ovalado longo, tamanho grande, polpa amarela clara e coloração clara de fritura. Também é indicada para o mercado fresco devido a seus tubérculos atrativos de cor vermelha intensa, película lisa e olhos rasos. Em seis ensaios, ‘BRS F183’ apresentou rendimentos de tubérculos que não diferiram de ‘Asterix’. O rendimento comercial foi relativamente alto, chegando a 98,5% no ecossistema tropical. Tubérculos maiores da ‘BRS F183’ que ‘Asterix’ foram também observados na safra de outono do ecossistema subtropical. Na maioria dos ensaios, o teor de matéria seca foi superior ao da ‘Asterix’, variando de 20,5 a 23,0%. Baixa incidência de desordens dos tuberculos foi observada na ‘BRS F183’, com o crescimento secundário menor que ‘Asterix’. ‘BRS F183’ apresentou dormência média dos tubérculos. Teor de glicose dos tubérculos adequado para processamento de palitos pré-fritos (≤1,2 mg g-1 de massa fresca) foi apresentado pela ‘BRS F183’, após a colheita e armazenamento a 7,5°C, 8,9°C e 20°C por até 180 dias, enquanto de ‘Asterix’ foi adequado até 120 dias após armazenamento a 8,9°C. ‘BRS F183’ é moderadamente resistente à pinta preta e moderadamente suscetível à requeima. É suscetível a PVY, PLRV e nematóide das galhas. Observações de campo indicam que a resistência/suscetibilidade à podridão mole, crosta preta e murcha bacteriana da ‘BRS F183’ não é diferente das principais cultivares cultivadas no país. No entanto, maior suscetibilidade à sarna comum foi observada em alguns testes de validação. ‘BRS F183’ foi lançada em 2020 pela Embrapa, como produto do programa de melhoramento desenvolvido pela Embrapa Clima Temperado e Embrapa Hortaliças.

Apresenta a nova cultivar da Embrapa 'BRS F50' - Cecília é uma cultivar destinada ao mercado fresco, com resistência à requeima e à pinta preta.

Programa de Melhoramento Genético da Batata da Embrapa.

Pumpkin (Cucurbita maxima) research has been growing because of its characteristics, such as the attractive color, low-cost production, nutritional potential, and functional properties for food application. In this context, pumpkin processing for flour production provides a full possibility for the consumption of this vegetable, being thus an alternative for the agribusiness. Research institutes are developing new genotypes for multiple applications of this vegetable. The objective of this study was to characterize pumpkin flours from four access and evaluate its physicochemical characteristics, carotenoid content, and protein digestibility. The dried pumpkins were ground in a knife mill and stored in a glass bottle at room temperature and protected from light. The pumpkin flours presented different proximal composition. All flours presented low water activity, which is microbiologically safe for storage. As for the absorption index and water solubility, both presented high values compared to the values of other flours found in the literature. The flours presented colorimetric profile from yellow to orange, and are rich sources of carotenoids and fibers. The four samples presented high values of protein digestibility, desired for food application. The results indicate that the four pumpkin access flours are indicated for application in foods. Made available in DSpace on 2020-06-03T04:43:21Z (GMT). No. of bitstreams: 1 0101-2061-cta-fst38819.pdf: 1032128 bytes, checksum: 3298ecbb0760cad80dccccd0fa6c86d5 (MD5) Previous issue date: 2020

Blackberry bushes have increasingly drawn producers? and consumers? interest since they find their cultivation characteristics, production and nutraceutical qualities advantageous. Both chemical and mineral characteristics, bioactive compounds and antioxidant activity found in blackberries are extremely relevant factors to be considered when cultivars are chosen. Chemical analyses of the nutritional composition offruit is important, since they can help studies of quality genotypes. Besides, fruit with high nutritional values contribute to human health when they are often consumed. This study aimed at evaluating chemical and mineral characteristics, besides bioactive compounds and antioxidant activity, of different blackberry bush genotypes grown in an organic farming system in Pelotas, Rio Grande do Sul (RS), Brazil. Production, soluble solid content, hydrogenionic potential, total titratable acidity, SS/TA ratio, minerals, phenolic compounds, anthocyanins and antioxidant activity of six blackberry bush genotypes ? "Tupy", "BRS Xingu", Selection Black 178, Selection Black 128, Selection Black 112 and Selection Black 145 ? were evaluated. It was a randomized block design with three replicates of every plant. Selection Black 178 yielded fruits with the highest value of SS/TA ratio and had the highest accumulated production. The highest anthocyanin content was found in "BRS Xingu". Selection Black 112 had the highest total contents of phenolic compounds and the highest antioxidant activity, whereas ?Tupy? exhibited their lowest values. Selection Black 178 adapted well to the organic farming system, a fact that did not happen to Selection Black 128. Made available in DSpace on 2020-11-21T09:15:34Z (GMT). No. of bitstreams: 1 3272-Article-Text-12853-2-10-20200713.pdf: 755117 bytes, checksum: f1060fd84c3a074718f99c5c7b604b7e (MD5) Previous issue date: 2020

Made available in DSpace on 2018-08-03T00:59:08Z (GMT). No. of bitstreams: 1 ArionePereira1BRSF63Camila.pdf: 371310 bytes, checksum: 541948b7ef3987bc0c95e13d60794d4c (MD5) Previous issue date: 2018-08-02

Sweet potato ( Ipomoea batatas (L.) Lam) is one of the most popular and ancient roots of Brazil and it can be consumed at different forms such as boiled, roasted or as sweets. Its cooking can lead to physicochemical transformations altering the nutritional properties. The objective of this study was to evaluate the physicochemical characteristics, bioactive compounds and antioxidant capacity of twelve sweet potato genotypes of varying pulp color in natura and roasted. Soluble solids, acidity, sugars, carotenoids, anthocyanins, phenolic compounds and antioxidant capacity were analyzed in the following sweet potatoes genotypes: cream pulp (Rubissol, Cuia, ILS03, ILS10, ILS12, ILS24 and ILS44); orange pulp (Amelia and Beauregard); and purple pulp (ILS56, ILS16 and ILS71). According to the results, it was observed a wide variation among the sweet potato genotypes for all analyzed parameters, in both preparation forms. The antioxidant capacity was a parameter with wide variation among genotypes, 210.29 to 7870.57µg trolox equivalent/g in in natura form and 673.26 to 17306.22µg trolox equivalent/g in roasted form. Soluble solids, acidity, sugars and bioactive compounds, with the exception of carotenoids, tended to be concentrated, also increases the total antioxidant capacity, in roasted sweet potatoes. In conclusion, genotype and the color of sweet potatoes were parameters that had an influence on its chemical composition. Cultivars such as Amelia and Beauregard stood out by the amounts of total soluble solids and carotenoids, respectively. The selections ILS 16 and ILS 56 are recommended as sources of anthocyanins. Thermal process influenced the concentration of antioxidant compounds and changed some physicochemical characteristics. RESUMO: A batata-doce ( Ipomoea batatas (L.) Lam) é uma das raízes mais populares e antigas do Brasil, podendo ser consumida cozida, assada ou na forma de doces. A sua cocção pode levar à transformações físico-químicas alterando as propriedades nutricionais. O objetivo deste trabalho foi avaliar as características físico-químicas, compostos bioativos e atividade antioxidante de doze genótipos de batata-doce, de coloração de polpa variada, na forma in natura e assada. Foram determinados sólidos solúveis totais, acidez, açúcares, carotenoides, antocianinas, compostos fenólicos e atividade antioxidante nos seguintes genótipos de batatas-doces: polpa creme (Rubissol, Cuia, ILS03, ILS10, ILS12, ILS24 e ILS44); polpa laranja (Amélia e Beauregard) e polpa roxa (ILS56, ILS16 e ILS71). Quanto aos resultados foi observada ampla variação entre os genótipos de batata-doce, para todos os parâmetros analisados, em ambas as formas de preparo. A atividade antioxidante foi um parâmetro que demonstrou grande variação entre os genótipos, de 210,29 a 7870,57µg de equivalente trolox/g nos genótipos in natura e de 673,26 a 17306,22µg de equivalente trolox/g nos genótipos assados. Foi observado que em batatas-doces assadas os sólidos solúveis, acidez, açúcares e os compostos bioativos, com exceção dos carotenoides, tenderam a ser concentrados, elevando também a atividade antioxidante total. Em conclusão, o genótipo e a coloração da batata-doce foram parâmetros que exerceram influência sob a sua composição química. Cultivares como Amélia e Beauregard se destacaram pela quantidade de sólidos solúveis totais e carotenoides, respectivamente. Como fonte de antocianinas, as seleções ILS 16 e ILS 56 são recomendadas. O processo térmico influenciou a concentração de compostos antioxidantes e alterou algumas características físico-químicas.

Trabalho publicado no III Congresso Brasileiro de Processamento de Frutas e Hortaliças, 2013.

'BRS Clara' é uma nova cultivar de batata para comercialização na forma fresca, liberada em 2010. Foi desenvolvimento pelo programa de meloramento de batata da Embrapa, selecionada para aparência e rendimento de tubérculos, e resistência foliar à requeima, causada por Phytophthora infestans.

Made available in DSpace on 2012-11-09T00:09:08Z (GMT). No. of bitstreams: 1 AnaCristinaRichterp96103.pdf: 5712228 bytes, checksum: 3e16ea4f8df1790a1f6c7b66b8a41bd2 (MD5) Previous issue date: 2012-11-08