High-performance liquid chromatography determination of phenolic acids in potato tubers (Solanum tuberosum) during wound healing

Ramamurthy, Manjeri S.; Maiti, B.; Thomas, Paul E.; Nair, P.M.

doi:10.1021/jf00016a007

Cited by 74 publications

(50 citation statements)

References 13 publications

(18 reference statements)

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“…In addition to the column was also used a Zorbax ODS-C18 pre column. The mobile phase conditions were identical to those used by Ramamurthy et al (1992): the mobile phase was given at 1.5 ml min -1 and consisted of: solvent A: acetic acid/water (2:98 v/v) and solvent B: acetic acid/acetonitrile/water (2:30:68 v/v). During analysis, the solvent gradient was programmed from 10 to 100% of B in A in 30 minutes.…”

Section: Simple Phenolics Compoundsmentioning

confidence: 99%

“…Además de la columna se usó también una precolumna Zorbax ODS-C18. Las condiciones de la fase móvil fueron idénticas a las empleadas por Ramamurthy et al (1992): la fase móvil corrió a 1.5 ml min -1 y consistió en: solvente A: ácido acético/agua (2:98 v/v) y solvente B: ácido acético /acetonitrilo/agua (2:30:68 v/v). Durante el análisis, el gradiente del solvente fue programado de 10 a 100% de B en A en 30 minutos.…”

Section: Compuestos Fenólicos Simplesunclassified

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Calidad nutrimental y nutraceutica de hoja de moringa proveniente de árboles de diferente altura

Guzmán-Maldonado

Zamarripa-Colmenares

Hernández-Duran

2017

Remexca

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ResumenRecientemente la moringa se ha introdujo en Guanajuato; sin embargo, los arboles no crecen en forma uniforme, hay diferencias de hasta 225 cm. El objetivo fue evaluar la calidad nutrimental y nutracéutica de la hoja de árboles de diferente tamaño. Las hojas se cosecharon en abril de 2013 en la huerta recién introducida por el INIFAP en Celaya, Guanajuato. Se determinó la calidad nutrimental por su composición química y contenido de calcio y hierro y la calidad funcional por el contenido de vitamina C, compuestos fenólicos y capacidad antioxidante. El contenido de proteína de las hojas de los árboles de 100 cm fue mayor (24.7%) que el de los árboles de 25 (21.1%) y 250 cm (22.3%), y menor al de la muestra comercial de Oaxaca (29.3%). Cien gramos de hoja de los árboles de 25, 100 y 250 cm pueden contribuir con el 107, 91.7 y 74%, del requerimiento diario de vitamina C. La hoja de la moringa de los arboles es mejor fuente de calcio y hierro, vitamina C, fenoles, taninos que las muestras comerciales. Lo mismo se aplica para la capacidad antioxidante. La hoja de la moringa presenta mejores propiedades nutracéuticas que el perejil, orégano, tomillo y epazote. Estos resultados demuestran la falta de uniformidad al preparar las mezclas comerciales y que el manejo apropiado puede lograr mejorar la calidad AbstractMoringa has been recently introduced in Guanajuato; however, the trees do not grow evenly, there are differences of up to 225 cm. The objective was to evaluate the nutritional and nutraceutical quality of leaf from trees of different sizes. The leaves were harvested in April 2013 in the newly-introduced garden by INIFAP in Celaya, Guanajuato. Nutritional quality for its chemical composition and content of calcium and iron and functional quality for vitamin C content, phenolic compounds and antioxidant capacity were determined. The protein content of the leaves from trees of 100 cm was higher (24.7%) than trees of 25 (21.1%) and 250 cm (22.3%), and lower than the commercial sample from Oaxaca (29.3%). One hundred grams of leaf from trees of 25, 100 and 250 cm can contribute with 107, 91.7 and 74% of the daily requirement of vitamin C. Moringa leaf of the tree is a better source of calcium and iron, vitamin C, phenols, tannins than the commercial samples. The same applies for antioxidant capacity. Moringa leaf has better nutraceutical properties than parsley, oregano, thyme and epazote. These results show the lack of uniformity in preparing commercial mixtures and appropriate management can achieve better quality of moringa leaf for commercial purposes. This is the first report on the quality of leaf from Mexican materials of moringa. de la hoja de moringa para propósitos comerciales. Este es el primer reporte de la calidad de la hoja de materiales mexicanos de moringa.Palabras clave: antioxidante, calidad de la hoja, compuestos fenólicos, moringa, nutrimental.

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Section: Simple Phenolics Compoundsmentioning

confidence: 99%

Section: Compuestos Fenólicos Simplesunclassified

Calidad nutrimental y nutraceutica de hoja de moringa proveniente de árboles de diferente altura

Guzmán-Maldonado

Zamarripa-Colmenares

Hernández-Duran

2017

Remexca

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“…The rate of enzymic browning depends on many factors such as the concentration and the type of phenolic compounds (Lachman et al 1996), the concentration and substrate specificity of polyphenoloxidases, the concentration of oxygen, and the concentration of naturally occurring inhibitors of browning (Almeida and Nogueira 1995). Differences in the potato-browning rate are caused rather by quantitative than qualitative differences of polyphenolic constituents of potato tubers (Ramamurthy et al 1992, Cantos et al 2002. Polyphenolic content in potato tubers is affected by the conditions of cultivation and by the potato varieties (Hamouz et al 1997).…”

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confidence: 99%

Effect of white fleece on the selected quality parameters of early potato (Solanum tuberosum L.) tubers

Laxhman¹,

Hamouz²,

Hejtmánek³

et al. 2003

Plant Soil Environ.

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The effects were tested of white fleece on the contents of ascorbic acid, nitrates, and polyphenols in 1999 and 2000, and on the carotenoids content in 2000 and 2001 in tubers of two early potato varieties (Adora and Impala) in field trials on two cultivation sites (Pøerov n/Labem and Prague-Troja). Early irrigated potatoes were cultivated according to the uniform methodology for field trials. Two variants were compared -cultivated plants covered with white fleece (Pegas-Agro UV 17) and the controls without any covering. The tubers were harvested three times in intervals of 7-16 days. The results were statistically tested by ANOVA and Tukey's methods. Ascorbic acid content showed a tendency to higher values in the potatoes covered with white fleece as compared with the control samples (average increase by 12.3%). The effect of the fleece was significantly affected by the potato genotype and the year of cultivation (cv. Adora showed a content higher by 12.54% in comparison with the control). The tendency to reduce nitrate levels was observed in potato tubers cultivated under the fleece, especially in the second term of harvest (on average by 14.34%). The decrease between the first and the third term of harvest was apparent. The higher was the maturity of potato tubers, the lower nitrate content was found. Significant differences were found between the varieties (P = 0.0058) and the cultivation sites (P = 0.0399). The effect of white fleece on polyphenol content was not statistically significant. However, the effect of the year of cultivation on the polyphenols content was significant (P = 0.0094). The effect of white fleece on the carotenoids content was not statistically significant but a tendency to lower contents in the variant with white fleece was found (by 7.2%). The sites and the varieties affected the carotenoids contents significantly (P = 0.0028 and P = 0.0417, respectively).

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“…Phenolic compounds, particularly caffeic acid, may be induced in eelgrass as a defense against wasting disease [56,63], which our observations suggest can be more prevalent at Point Molate than Point San Pablo eelgrass beds. Protection from pathogens is a role that phenolic compounds play in many other situations, including the induction of phenolic compounds to protect wounds on the common potato from infection by rot-producing bacteria [64]. Phenolic compounds are also important in shielding plants against damage from ultraviolet-B radiation damage [65,66] and in some cases this may be of greater importance than the role these compounds play in defense against herbivory [67].…”

Section: Field Experimentsmentioning

confidence: 99%

Grazer Functional Roles, Induced Defenses, and Indirect Interactions: Implications for Eelgrass Restoration in San Francisco Bay

Lewis

Boyer

2014

Diversity

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Abstract:Understanding the individual and interactive roles of consumer species is more than academic when the host plant is a subject of intense conservation interest. In a mesocosm experiment, we compared effects of common invertebrate grazers in San Francisco Bay seagrass (Zostera marina, eelgrass) beds, finding that some species (a native opisthobranch, Phyllaplysia taylori; a native isopod, Idotea resecata; and an introduced gastropod, Ilyanassa obsoleta) enhanced eelgrass growth through removal of epiphytic algae, as is often predicted for small invertebrate grazers on seagrasses, while one (an introduced caprellid amphipod, Caprella cf. drepanochir) had neutral effects. In contrast, the putatively-introduced gammaridean amphipod, Ampithoe valida, had strong negative effects on eelgrass (in addition to epiphytes) through consumption, as we had previously observed in the field during restoration programs. We tested whether other common grazer species could influence the effects of the eelgrass-grazing Ampithoe, and found that Idotea induced production of phenolic compounds and limited eelgrass damage by Ampithoe, without affecting Ampithoe abundance. These results have implications for restoration strategies, and contribute to a growing awareness of the importance of trait-mediated indirect grazer interactions through grazer-induced changes in plant traits, providing the first example in a seagrass system.

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High-performance liquid chromatography determination of phenolic acids in potato tubers (Solanum tuberosum) during wound healing

Cited by 74 publications

References 13 publications

Calidad nutrimental y nutraceutica de hoja de moringa proveniente de árboles de diferente altura

Calidad nutrimental y nutraceutica de hoja de moringa proveniente de árboles de diferente altura

Effect of white fleece on the selected quality parameters of early potato (Solanum tuberosum L.) tubers

Grazer Functional Roles, Induced Defenses, and Indirect Interactions: Implications for Eelgrass Restoration in San Francisco Bay

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