2019
DOI: 10.2503/hortj.utd-025
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Seasonal Variation in the Yield and Polyphenol Content of Sweet Potato (<i>Ipomoea batatas</i> L.) Foliage

Abstract: Despite increasing demand for sweet potato foliage, which is rich in functional components, efficient methods to maximize yield are still needed. In this study, cultivation tests for sweet potato (line Kyukei05303-3) were conducted over three consecutive years at a greenhouse to characterize seasonal changes in the foliage yield (leaves and stem-petioles), as well as the polyphenol content. The sweet potato foliage was harvested from May to November every week, and the average leaf yield was 855.3 g•m −2 •year… Show more

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Cited by 12 publications
(17 citation statements)
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“…Kobayashi et al . ( 40 ) reported a negative correlation between the average air temperature and phenolic content of Ipomoea batatas , suggesting that lower temperatures increased the total phenolic content.…”
Section: Resultsmentioning
confidence: 99%
“…Kobayashi et al . ( 40 ) reported a negative correlation between the average air temperature and phenolic content of Ipomoea batatas , suggesting that lower temperatures increased the total phenolic content.…”
Section: Resultsmentioning
confidence: 99%
“…Así mismo, el incremento en la concentración de estas sustancias en los meses de abril a junio de 2018 coincide con las lluvias registradas en este periodo. La influencia de la variación estacional sobre el contenido de polifenoles en hojas de I. batatas ha sido establecida [43], hallando que la concentración de éstos disminuye durante el verano e incrementaba nuevamente después de dicha estación. Así mismo, se halló una concentración promedio de polifenoles de 6,9%, lo cual contrasta con lo encontrado en la presente investigación al obtenerse una producción promedio de 2,11% EAG en M. aegyptia.…”
Section: Concentración De Polifenoles Totales En Los Extractos Foliaresunclassified
“…No obstante lo anterior, se hace necesario conocer el tipo y concentración individual de los compuestos fenólicos presentes en los extractos más que la concentración total de éstos, ya que este grupo de sustancias es bastante amplio y varios autores [1, 43,57] han señalado la presencia de derivados del ácido cafeoilquinico, ácido gálico, ácido cinámico, ácido ferúlico, eriocitrina, hesperidina, ácido rosmarínico y metil-rosmarenato en extractos vegetales, todos ellos con diferente potencial antioxidante. De igual manera, se ha encontrado diferencias en la actividad antioxidante al evaluar fracciones de los extractos de M. borneensis [22], lo que refuerza la idea anterior.…”
Section: Actividad Antioxidanteunclassified
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“…Sweet potato plants are rich in phenolic acids; however, assessment of polyphenols content in leaves and roots indicates that their concentration depends largely on aspects inherent to biology of the species, as well as on environmental factors and others such as crop management (Islam et al, 2002;Dini et al, 2006;Naz et al, 2017;Kobayashi et al, 2019;Sun et al, 2019). Therefore, establishment of sweet potato plantations to produce bioactive compounds of commercial interest would require availability of large plantations to supply only a part of demand for this type of substances.…”
Section: Introductionmentioning
confidence: 99%