Production and marketing of vegetables for the ethnic markets in the United States

Mangan, Francis X.; Mendonça, R. U. de; Moreira, María Teresa; Nunes, Samanta del Vecchio; Finger, Fernando Luíz; Barros, Zoraia de Jesus; Galvão, Hilton; Almeida, Gustavo C; Silva, Rachel An; Anderson, Mary L.

doi:10.1590/s0102-05362008000100002

Cited by 19 publications

(9 citation statements)

References 5 publications

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“…Today's consumers are interested in new food, and are willing to try and pay more for new flavors (De Barcellos, 2009), making these alternative specialty crops appealing for their unique, delectable flavors and appealing appearance. To meet the regional demands for alternative specialty crops, it is necessary to understand existing supply chains and their requirements and consumer behavior (Mangan et al, 2008).…”

Section: Opportunitiesmentioning

confidence: 99%

Opportunities and Challenges of Alternative Specialty Crops: The Global Picture

Kim¹

2016

horts

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Modern intensive agriculture has led to biodiversity loss by restricting the number of crops, resulting in a limited range of nutrients available to the community. Alternative specialty crops can contribute to crop diversification in agricultural production systems and enhance human health and well-being by providing a diverse array of food crops. Rapid demographic changes in the U.S. population has created higher demands for and sales potential of fruits and vegetables, and has brought new market opportunities for farmers in the United States to grow alternative specialty crops. The introduction of alternative specialty crops has many inherited advantages including economic benefits to farmers through multiple facets: diversifying crop with value-added crops, improving resilience to climate variability, maintaining yields with less resources, and boosting crop resistance to pests and diseases. However, there are challenges associated with the introduction and establishment of new crops, which include lack of information on candidates, cultural practices, and marketing as well as policy and institutional barriers. Farmers may face risk from poor economic returns and their businesses are likely to fail if proper management and marketing information are not available. This paper explores the opportunities and challenges associated with introduction of alternative specialty crops, and discuss how to mitigate potential problems associated with the introduction and establishment of alternative specialty crops.

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Section: Opportunitiesmentioning

confidence: 99%

Opportunities and Challenges of Alternative Specialty Crops: The Global Picture

Kim¹

2016

horts

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“…Therefore, its production and consumption is restricted to tropical and subtropical regions of Americas and Africa. Nevertheless, production and consumption of these ethnical vegetables in the United States of America is increasing due to the large community of Brazilians and Africans in Northeastern states and Florida (Mangan et al, 2008). Several vegetables are appreciated by the Brazilian population living in the USA, but fruits of maxixe (Cucumis sativus) and gilo (Solanum gilo), and tannia leaves are the most popular cooking vegetables.…”

Section: Introductionmentioning

confidence: 99%

Postharvest responses of tannia (Xanthosoma sagittifolium) leaves to mechanical wounding

Mendes¹,

França²,

Petrucci³

et al. 2017

Aust J Crop Sci

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Tannia leaves are consumed in many regions of Tropical Americas and Africa. Due to large size and fragility, leaves are subjected to physical wounding during handling. As a result, visual symptoms of yellowing develop at wounding and adjacent tissues. The aim of this study was to evaluate the effect of mechanical injury on the physiological changes of tannia leaves at damaged tissue and adjacent areas. For this purpose, the lamina of leaves was perforated for several times with a needle. Then, the leaf samples were excised off as follows: a 0.6 cm diameter (circle A), containing the injured area; 1.1 cm O-ring B, around the circle A, 1.6 cm O-ring C, around the B. Control samples were taken from the opposite side of the leaves free of any wounding. Analysis of fresh weight loss and concentration of soluble phenolic compounds were performed after 30 min, 2, 4 and 6 h and the leaf chlorophyll content was determined after 30 min, 24, 48 and 72 h. The mechanical injury increased the postharvest accumulated fresh weight loss by 59.1% on circle A and by 22.6% on O-ring B after 6 h. The injured circle A accumulated 56% more soluble phenolic over the period of 6 h, which can be related to the activation of defense mechanism by the cell. The rate of chlorophyll degradation was not affected by the injury up to 72 h after wounding. Leaf wounding increases fresh weight loss and induces accumulation of soluble phenolic compounds at location of the injury.

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“…O consumo do fruto, que tem um amargor peculiar, é justificado, pois esta hortaliça é um reservatório de nutrientes e fitoquímicos, entre os quais o ácido ascórbico, que apresenta valor nutricional e terapêutico (Mangan et al, 2008;Chinedu et al, 2011).…”

Section: Introductionunclassified

Fosfitos no manejo da antracnose do jiló

Alexandre

Herculano

Silva

et al. 2014

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar os efeitos de fosfitos sobre a antracnose (Colletotrichum tamarilloi) em jiló, na pós-colheita. O crescimento micelial e a produção e a germinação de conídios foram avaliados após a aplicação dos sais de fosfitos de Ca, K, Mg, Zn e Cu, nas concentrações de 0,25, 0,50, 0,75, 1,00, 1,25, 1,50 e 1,75 g L -1 (in vitro), sobre o fungo C. tamarilloi. As doses 0,25, 0,75, 1,25 e 1,75 g L -1 afetaram os frutos no período pós-colheita. Avaliaram-se os atributos químicos e a possível resposta bioquímica. A dose de 1,50 g L -1 foi utilizada no controle da antracnose, em pós-colheita, após inoculação do fungo. In vitro, a concentração efetiva para a redução de 50% do crescimento micelial e da produção e da germinação de conídios (CE 50 ) foi alcançada para as menores concentrações do fosfito de K. Observou-se efeito linear quanto à redução da incidência da antracnose e ao aumento das atividades das enzimas oxidativas/reativas catalase, ascorbato peroxidase e polifenoloxidase. O fosfito de K foi o sal mais eficiente contra a antracnose, em frutos armazenados a 13±2°C e 24±2°C, e tem potencial para ser utilizado para o manejo desta doença.Termos para indexação: Colletotrichum tamarilloi, Solanum gilo, controle alternativo, patologia pós-colheita. Phosphites in the management of anthracnose on jiloAbstract -The objective of this work was to evaluate the effects of phosphites on anthracnose (Colletotrichum tamarilloi) on jilo at postharvest. Mycelial growth, and production and germination of conidia were evaluated after the application of Ca, K, Mg, Zn, and Cu phosphites at the doses of 0.25, 0.50, 0.75, 1.00, 1.25, 1.50, and 1.75 g L -1 (in vitro) on the fungus C. tamarilloi. The doses 0.25, 0.75, 1.25, and 1.75 g L -1 affected fruit in the period postharvest. Chemical attributes and the possible biochemical response were evaluated. The dose of 1.50 g L -1 was used in the post-harvest management of anthracnose after fungus inoculation. In vitro, the effective concentration for 50% reduction of mycelial growth and of conidial production and germination (EC 50 ) was achieved for K phosphite lower concentrations. Linear effect was observed for the anthracnose incidence reduction and for the activity increase of oxidative/reactive catalase enzymes, ascorbate peroxidase, and polyphenoloxidase. Potassium phosphite was the most efficient salt against anthracnose, in stored fruit at 13±2°C and 24±2°C, and it has the potential to be used for this disease management.

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Production and marketing of vegetables for the ethnic markets in the United States

Cited by 19 publications

References 5 publications

Opportunities and Challenges of Alternative Specialty Crops: The Global Picture

Opportunities and Challenges of Alternative Specialty Crops: The Global Picture

Postharvest responses of tannia (Xanthosoma sagittifolium) leaves to mechanical wounding

Fosfitos no manejo da antracnose do jiló

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