Polysaccharides and Flavones in Loquat Cultivars

Jiang, Fenghua; Zheng, Shengping; Gao, Haisheng; Huang, Anita.; Chen, X.P.

doi:10.17660/actahortic.2007.750.50

Cited by 3 publications

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“…It is reported that, the contents of polysaccharides and flavones in old leaves were quiet different between different loquat cultivars [13]. Our research also showed that the contents of polysaccharides, triterpene acid and flavones in leaves differed significantly among different species of Eriobotyra.…”

Section: Resultssupporting

confidence: 59%

Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

et al. 2017

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Abstract. Loquat (Eriobotrya japonica) is a subtropical tree with commercially important fruit and with leaves that have medicinal uses against cough and asthma. Leaves contain significant amounts of phenols, flavonoids, triterpene acids, and polysaccharides. However, information of the triterpene acids and polysaccharides in leaves is limited. In this study, the contents of five major triterpene acids and total polysaccharides in the leaves of 11 species of Eriobotrya were determined using RP-HPLC and phenol-sulfuric acid method, respectively. Total concentration of triterpene acids varied from 8.38 to 22.35 mg g-1 DW. The concentration of triterpene acids was greater than 20 mg g-1 DW in E. bengalensis, E. prinoides and E. fragrans, and it was less than 10.0 mg g-1 DW in E. elliptica. Different drying temperature (40-80˚C) of leaves did not affect the content of polysaccharides with highest content (80.8 mg g-1 DW) from E. prinoides. The contents of triterpene acid in six wild species and polysaccharides in 5 wild species were higher than that in cultivated loquat.

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Section: Resultssupporting

confidence: 59%

Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

et al. 2017

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“…Other metabolites in leaf, ower and root of loquat Except the phenolic compounds, terpenoid, alkaloids and so on secondary metabotiles, polysaccharide also playes an important role in medicinal application of loquat [46] . Study showed that the contents of polysaccharides in different part of tree were signi cantly different among difference loquat cultivars [47] .…”

Section: Genome Elements Annotationmentioning

confidence: 96%

A draft genome at chromosome level and metabolomes of leave, root and flowers provide insights into the molecular basis of medicinal ingredients of loquat (Eriobotrya japonica (Thunb.) Lindl)

Wang¹

2021

Preprint

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Eriobotrya japonica, commonly called loquat, is a type of fruit and a famous traditional Chinese medicinal material. Here, a high-quality draft genome of the E. japonica cultivar, Big Five-pointed Star, containing 733.32 million bases (Mb) covering approximately 98% of estimated whole genome size (749.25 Mb) is reported. A total of 45,492 protein-coding genes were predicted. Meanwhile, metabolomes of flower, leave and root of this loquat variety were also determined by UPLC-ESI-MS/M system. 577 metabolites were determined in total, including 98 phenolic acids, 95 flavonoids, 33 alkaloids, 28 terpenoids, one steroids. The accumulation difference of these metabolites among leaf, flower and root of loquat were also clarified. Based on KEGG annotation, genes related to the biosynthesis of medicinal ingredients including some flavonoids and terpenoids were identified. Overall, this study provides global fundamental molecular insights into the medical biology of Eriobotrya japonica.

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“…No obstante, la producción se duplicó entre 1985 y 1995, pasando de 18.308 a 36.520 t, alcanzando su máximo histórico en 2002 con un total superior a las 45.000 t producidas (Figura I.3 La mayor parte de la producción mundial de níspero se comercializa para su consumo en fresco, aunque también en almíbar, mermeladas y zumos. En China se considera una especie con alto valor medicinal donde todos los órganos son utilizados con este fin (Feng et al 2007;Hong et al 2007;Lu et al 2007;Zheng 2007), aunque también es muy valorado como vino, licor o infusión (Jiang et al 2007;Lin et al 2007;Xu et al 2007). En las zonas productoras españolas, la miel obtenida es otro de los productos más apreciados (Llácer y Soler 2001;Caballero y Fernández 2004).…”

Section: Importancia Económicaunclassified

Desarrollo de métodos biotecnológicos aplicados a la mejora genética del níspero japonés (Eriobotrya japonica (Thunb.) Lindl.)

Villarroya¹

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En primer lugar quiero agradecerle a Gerardo Llácer la oportunidad que me dio para poder realizar mi tesis doctoral en el IVIA. A mis directoras, Marisa Badenes y Mar Naval, por depositar su confianza en mí, por todo su esfuerzo, tiempo y dedicación en mi formación y la planificación, desarrollo y finalización de esta tesis. A todo el grupo de frutales, del primero al último, a los que están y a los que no, por todo vuestro apoyo y colaboración; 'I get by with a little help from my friends'.

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Polysaccharides and Flavones in Loquat Cultivars

Cited by 3 publications

References 0 publications

Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

A draft genome at chromosome level and metabolomes of leave, root and flowers provide insights into the molecular basis of medicinal ingredients of loquat (Eriobotrya japonica (Thunb.) Lindl)

Desarrollo de métodos biotecnológicos aplicados a la mejora genética del níspero japonés (Eriobotrya japonica (Thunb.) Lindl.)

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Polysaccharides and Flavones in Loquat Cultivars

Cited by 3 publications

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Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

Analysis of major triterpene acids and total polysaccharides in the leaves of 11 species ofEriobotrya

A draft genome at chromosome level and metabolomes of leave, root and flowers provide insights into the molecular basis of medicinal ingredients of loquat (Eriobotrya japonica&nbsp;(Thunb.) Lindl)

Desarrollo de métodos biotecnológicos aplicados a la mejora genética del níspero japonés (Eriobotrya japonica (Thunb.) Lindl.)

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A draft genome at chromosome level and metabolomes of leave, root and flowers provide insights into the molecular basis of medicinal ingredients of loquat (Eriobotrya japonica (Thunb.) Lindl)