The effects of cutting and drying medium on the vitamin C content of rosehip during drying

Erentürk, Saliha; Gülaboğlu, M. Şahin; Gültekin, Selahattin

doi:10.1016/j.jfoodeng.2004.07.012

Cited by 109 publications

(66 citation statements)

References 20 publications

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“…This plant material is generally considered to be the most abundant natural source of vitamin C (Erentürk et al, 2005;Kobus et al, 2005;Nowak, 2006). The flavonoids and organic acids found in rose hips inhibit oxidation of vitamin C, which additionally increases its stability and bioavailability in humans (Ochmańska et al, 2001;Padayatty and Levine, 2001;Kobus et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…In the hips of roses from the Caninae section, the level of ascorbic acid has been determined most frequently (Halásová and Jièínská, 1988;Gao et al, 2000;Kovács et al, 2000;Demir and Özcan, 2001;Strålsjö et al, 2003;Uggla et al, 2003;Erentürk et al, 2005;Kovács et al, 2005;Novruzov and Shamsizade, 2005;Pirone et al, 2007;Nojavan et al, 2008;Nueleanu et al, 2008). Also measured were carotenoids (Hodisan et al, 1997;Gao et al, 2000;Böhm et al, 2003;Novruzov and Shamsizade, 2005;Olsson et al, 2005;Pirone et al, 2007), flavonoids and anthocyanins (Nowak, 1994;Nowak and Hawrył, 2005;Pirone et al, 2007;Adamczak et al, 2010), total phenols (Gao et al, 2000;Nowak and Gawlik-Dziki, 2004;Olsson et al, 2005;Ercisli, 2007;Kilicgun and Altiner, 2010), sugars (Kovács et al, 2000;Uggla et al, 2005;Pirone et al, 2007) and nutrients (Kovács et al, 2000;Demir and Özcan, 2001;Ercisli, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The largest amount of such data is in a monographic study by Nowak (2006). However, these studies most often relate only to Rosa canina (Hodisan et al, 1997;Demir and Özcan, 2001;Hvattum, 2002;Erentürk et al, 2005;Novruzov and Shamsizade, 2005;Nojavan et al, 2008;Nueleanu et al, 2008;Kilicgun and Altiner, 2010). There are few comparative studies shedding light on intra-and interspecific phytochemical variability within sect.…”

Section: Introductionmentioning

confidence: 99%

“…(Zieliński, 1987;Kovács et al, 2005). They were picked at full maturity as judged by their color (Erentürk et al, 2005;Gao et al, 2005;Nojavan et al, 2008). The material was taken mainly from wild specimens, and in several cases from shrubs in the garden collection of the Institute of Dendrology, Polish Academy of Sciences in Kórnik near Poznań.…”

Section: Introductionmentioning

confidence: 99%

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Flavonoid and Organic Acid Content in Rose Hips (Rosa L., Sect. Caninae Dc. Em. Christ.)

Adamczak¹,

Buchwald²,

Zieliński³

et al. 2012

Acta Biologica Cracoviensia Series Botanica

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We determined the level of flavonoids, citric acid and ascorbic acid in hips of rose species from the Caninae section occurring in Poland. We performed phytochemical analyses of 75 samples representing 11 species: Rosa agrestis Savi, R. canina L., R. dumalis Bechst., R. glauca Pourret, R. inodora Fries, R. jundzillii Besser, R. rubiginosa L., R. sherardii Davies, R. tomentosa Sm., R. villosa L. and R. zalana Wiesb. Flavonoid content was determined spectrophotometrically, and organic acid concentrations by HPLC. The content of the studied compounds varied greatly. Interspecific differences in the amount of flavonoids and ascorbic acid were highly significant. The most common species, Rosa canina, showed low average content of vitamin C (0.51 g/100 g of dry matter) and flavonoids (41 mg/100 g DM) and high content of citric acid (3.48 g/100 g DM). Ascorbic acid was highest in R. villosa hips (avg. 2.25 g/100 g DM), flavonoids were highest in R. rubiginosa (72 mg/100 g DM), and citric acid was highest in R. tomentosa (4.34 g/100 g DM). Flavonoid level correlated negatively with the amount of citric acid (r=-0.47, p<0.001). Cluster analysis of rose species based on the content of the investigated compounds confirmed the validity of the division of sect. Caninae into three subsections: Rubiginosae, Vestitae and Rubrifoliae. The phytochemical variation of these roses reflects their probable phylogenetic relationships as determined from morphology. K Ke ey y w wo or rd ds s: : Rosa, Caninae, rose hips, medicinal plants, flavonoids, vitamin C, phylogenetic relationships, taxonomy.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Flavonoid and Organic Acid Content in Rose Hips (Rosa L., Sect. Caninae Dc. Em. Christ.)

Adamczak¹,

Buchwald²,

Zieliński³

et al. 2012

Acta Biologica Cracoviensia Series Botanica

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“…Esse mesmo comportamento foi observado por Erenturk et al (2004) ao estudarem a secagem de Rosa canina L. Gabas et al (2003) relacionaram temperatura e conteúdo de água com a degradação do ácido ascórbico, e constataram que a baixas temperaturas e elevados conteúdos de água a degradação dessa vitamina é mais acentuada.…”

Section: Avaliação Do Processo De Secagemunclassified

Desidratação da polpa de tamarindo pelo método de camada de espuma

Silva

Gurjão²,

Almeida³

et al. 2008

Ciênc. agrotec.

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RESUMOObjetivou-se, no presente trabalho, estudar a cinética de secagem da polpa de tamarindo pelo método de camada de espuma (foam-mat), a 50, 60, 70 e 80 °C, e avaliar o efeito dessas temperaturas no teor de ácido ascórbico, acidez total titulável e na cor, expressa pelo parâmetro luminosidade (L*) matiz (h°). Para a representação dos dados experimentais da secagem, três modelos matemáticos de camada fina foram aplicados adotando-se como critérios de seleção o coeficiente de determinação (R 2 ) e o desvio quadrático médio (DQM). De acordo com os resultados obtidos, tem-se que a temperatura é um fator determinante no processo de desidratação e que o modelo de Midilli e Kucuk foi o que melhor representa o comportamento das curvas de desidratação. Os melhores resultados para o teor de ácido ascórbico, acidez titulável e cor foram obtidos para as temperaturas de 60 e 70 °C.Termos para indexação: Modelagem, conservação, secagem, tamarindo. ABSTRACTThe foam-mat drying process was studied for the tamarind pulp at 50, 60, 70 and 80°C and the temperature effect on the tamarind powder were evaluated as regards to ascorbic acid content, total titratable acidity and colour, expressed by luminosity (L*) and hue (h°). For the representation of the drying process three models for thin-layer were applied and the criterion of evaluation used were the coefficient of determination (R 2 ) and root mean square error (DQM). According to the results the temperature is a determinant parameter in the drying process, and the Midilli and Kucuk model was the best one to represent the behavior of the drying curves. The best results for ascorbic acid content, titritable acidity and colour were obtained at the temperatures of 60 and 70 °C. INTRODUÇÃOO Brasil é um país privilegiado por sua diversidade de clima e solo, garantindo uma produção de frutas bastante diversificada, sendo um dos principais produtores e exportadores de várias espécies frutíferas nativas e exóticas ainda não aproveitadas em todo o seu potencial (CÁCERES, 2003).Os frutos tropicais como tamarindo, abacaxi, maracujá, manga, cajá, goiaba e graviola, têm uma especial preferência na dieta dos consumidores brasileiros (CÁCERES, 2003), devido aos seus constituintes 1 Parte do trabalho de tese do segundo autor 2 Química Industrial, Doutorando em Engenharia de Processos -Centro de Ciências e Tecnologia/CCT -Unidade Acadêmica de Engenharia Química/ UAEQ -Laboratório de Engenharia Química/LEB -Universidade Federal de Campina Grande/UFCG -Rua Euclides Carolino de Lima, 185 -Santa Rosa -58416-290 -Campina Grande, PB -adriano_santana@yahoo.com.br 3 Engenheira Agrícola, Doutora em Agronomia -Coordenação Geral de Produção e Pesquisa -Escola Agrotécnica Federal de Sousa/EAFS -Avenida PresidenteTancredo Neves, s/n -Jardim Sorrilândia -Cx. P. 49 -58000-800 -Sousa, PB -katgurjao@yahoo.com.br 4 Agrônomo, Doutor em Agronomia -Centro de Tecnologia e Recursos Naturais/CTRN -Unidade Acadêmica de Engenharia Agrícola/UAEA -Laboratório de Armazenamento e Processamento de Produtos Agrícolas/LAPPA...

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Dogroses: Botany, Horticulture, Genetics, and Breeding

Werlemark

Nybom

2009

Horticultural Reviews

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The effects of cutting and drying medium on the vitamin C content of rosehip during drying

Cited by 109 publications

References 20 publications

Flavonoid and Organic Acid Content in Rose Hips (Rosa L., Sect. Caninae Dc. Em. Christ.)

Flavonoid and Organic Acid Content in Rose Hips (Rosa L., Sect. Caninae Dc. Em. Christ.)

Desidratação da polpa de tamarindo pelo método de camada de espuma

Dogroses: Botany, Horticulture, Genetics, and Breeding

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