Characterization of antioxidant compounds in Jaffa sweeties and white grapefruits

Gorinstein, Shela; Cvikrová, Milena; Macháčková, Ivana; Haruenkit, Ratiporn; Park, Yong-Seo; Jung, Soon-Teck; Yamamoto, Kazutaka; Ayala, Alma Leticia Martínez; Katrich, Elena; Trakhtenberg, Simon

doi:10.1016/s0308-8146(03)00127-4

Cited by 127 publications

(83 citation statements)

References 27 publications

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“…Both juice and peel contain nutraceuticals; nevertheless, it has been demonstrated that they are more abundant in Citrus peel [39][40][41]. The results of the present investigation, therefore, are in accordance with others who indicated that peels are an important source of phenolics [42,43].…”

Section: Discussionsupporting

confidence: 91%

Quantitative Phytochemical Analysis and Antioxidant Activities of Some Citrus Fruits of South India

Pallavi

Krishna

et al. 2017

Asian J Pharm Clin Res

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Objective: The current investigation was contemplated to evaluate the phytochemicals and in vitro antioxidant activities in peel and pulp of some commercially grown citrus fruits of South India, namely, lemon (Citrus aurantifolia), orange (Citrus reticulata), sour orange (Citrus aurantium), pomello (Citrus grandis), and citron (Citrus medica). Methods:The peel and pulp of the fruits were separated and subjected to cold extraction using 70% alcohol. The extracts obtained were screened for the presence of their phytoconstituents using various qualitative and further quantified for major constituents. Further, the in vitro antioxidant activity was assayed by different radical scavenging methods, namely, 2,2-diphenyl-1-picrylhydrazyl, superoxide anion, nitric oxide, lipid peroxidation inhibition, iron chelating activity, and reducing power assay at different concentrations.Results: All the citrus fruits have shown significant in vitro antioxidant activity for the parameters assessed, wherein peel extracts recorded superior antioxidant potential than their corresponding pulps. The broad range of activity of the extracts suggests that multiple mechanisms mediated by the phytoconstituents are responsible for the antioxidant activity. Conclusion:The study thus revealed that peel and pulp of citrus fruits are potential sources of bioactive compounds which are reflected in antioxidant activity and supports their health-promoting claims of plethora of investigations.

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Section: Discussionsupporting

confidence: 91%

Quantitative Phytochemical Analysis and Antioxidant Activities of Some Citrus Fruits of South India

Pallavi

Krishna

et al. 2017

Asian J Pharm Clin Res

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“…The DPPH • free radical scavenging activity of bokbunja and other berries were measured using the method described by Gorinstein et al (2004). A 0.2 mM solution of DPPH • in methanol was prepared.…”

Section: Determination Of the Antioxidant Activitymentioning

confidence: 99%

Comparison of the phenolic composition and antioxidant activity of Korean black raspberry, Bokbunja, (Rubus coreanusMiquel) with those of six other berries

Yang

Choi

2016

CyTA - Journal of Food

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Bokbunja (Rubus coreanus Miquel) and six other berries were analyzed for physico-chemical properties and antioxidant activities, using four different methods (DPPH • , ABTS •+ , FRAP, and reducing power). The total polyphenol, total flavonoid, and total anthocyanin contents of bokbunja were significantly higher than those of other berries, followed by mulberry, blackberry, cranberry, raspberry, wild strawberry, and strawberry. Antioxidant activity assays also showed that bokbunja's antioxidant activity exceeded that of the other berries. Bokbunja had not only significantly higher levels of kaempferol, quercetin, and ellagic acid but also the highest ellagic acid content (408.57 mg kg −1 fresh weight). The potential antioxidant activities of bokbunja might be ascribed to its high total polyphenol, total flavonoid, and total anthocyanin contents. Ellagic acid may also affect antioxidant activity, although the concentrations of other phenolic compounds such as kaempferol, quercetin, and quercetin-3-O-rutinoside were high in other berries such as blackberry, cranberry, and mulberry.Comparación de la composición fenólica y la actividad antioxidante de la frambuesa negra coreana Bokbunja, (Rubus coreanus Miquel) con otros seis tipos de frutos del bosque RESUMEN Se analizaron la bokbunja (Rubus coreanus Miquel) y otros seis frutos del bosque para determinar sus propiedades fisicoquímicas y su actividad antioxidante utilizando cuatro métodos diferentes (DPPH • , ABTS •+ , FRAP y poder reductor). El contenido total de polifenoles, flavonoides y antocianina de la bokbunja fue significativamente más alto que aquel de otros frutos del bosque, seguido por el de las moras de Morus, las moras de Rubus, los arándanos rojos, las frambuesas, las fresas silvestres y las fresas. Los ensayos de actividad antioxidante mostraron también que la actividad antioxidante de la bokbunja excedió a aquella de los otros frutos del bosque. La bokbunja no solamente obtuvo unos niveles significativamente más altos de kaempferol, quercetina y ácido elágico, sino que también el mayor contenido de ácido elágico (408.57 mg kg −1 peso fresco). La potencial actividad antioxidante de la bokbunja podría ser atribuida a sus alto contenido total de polifenoles, flavonoides y antocianina. El ácido elágico también podría afectar a la actividad antioxidante, aunque las concentraciones de otros compuestos fenólicos como el kaempferol, la quercetina y la quercetina-3-O-rutinósido fueron más altas en otros frutos del bosque como las moras de Rubus, los arándanos rojos y las moras de Morus. ARTICLE HISTORY

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“…All the data were the averages of triplicate determinations of three tests. The DPPH free radical-scavenging activity of oil was measured using the method described by Gorinstein et al 25 . A 0.1 mM solution of DPPH in methanol was prepared.…”

Section: Determination Of Antioxidant Activitymentioning

confidence: 99%

Flaxseed Hull: Chemical Composition and Antioxidant Activity during Development

et al. 2014

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Characterization of antioxidant compounds in Jaffa sweeties and white grapefruits

Cited by 127 publications

References 27 publications

Quantitative Phytochemical Analysis and Antioxidant Activities of Some Citrus Fruits of South India

Quantitative Phytochemical Analysis and Antioxidant Activities of Some Citrus Fruits of South India

Comparison of the phenolic composition and antioxidant activity of Korean black raspberry, Bokbunja, (Rubus coreanusMiquel) with those of six other berries

Flaxseed Hull: Chemical Composition and Antioxidant Activity during Development

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