Modulation of flavanone and furocoumarin levels in grapefruits (Citrus paradisi Macfad.) by production and storage conditions. Academic Article

abstract

• Grapefruits grown under organic or conventional systems were analyzed for 6,7-dihydroxybergamottin (DHB) and flavanones using HPLC, and DPPH activity and ORAC using a micro-plate reader. Grapefruits harvested in November 2008 (E-1) and February 2010 (E-2) were stored at room temperature (RT) and 9 C for four weeks. Higher levels of DHB were observed in conventional grapefruits during the second (4.7 0.2 g/g), third (1.5 0.2 g/g) and fourth (2.5 0.2 g/g) week of storage at room temperature in E2. Among flavonoids analyzed, narirutin (666.7 33.9 g/g), neohesperidin (17.5 1.3 g/g), didymin (75.5 5.6 g/g) and poncirin (130.8 10.4 g/g) levels were significantly higher (P0.05) in organic grapefruits over conventional grapefruits at harvest and storage in E-1. Although DPPH levels were moderately correlated with grapefruit flavanone content, variability in the individual flavanone activity was pronounced, resulting in non-significant differences in antioxidant activity between organic and conventional grapefruits.

authors

• Jifon, John
• Patil, Bhimanagouda

published proceedings

• Food Chem

author list (cited authors)

• Chebrolu, K. K., Jifon, J., & Patil, B. S.

citation count

• 13

complete list of authors

• Chebrolu, Kranthi K||Jifon, J||Patil, Bhimanagouda S

publication date

• April 2016

publisher

• Elsevier  Publisher

published in

• Food Chemistry  Journal

keywords

• Agriculture
• Antioxidant Activity
• Antioxidants
• Chromatography, High Pressure Liquid
• Citrus Paradisi
• Dihydroxybergamottin
• Disaccharides
• Flavanones
• Flavonoids
• Food Preservation
• Fruit
• Furocoumarins
• Grapefruit
• Organic Agriculture
• Organic Production

PubMed Central ID

• 26593504

Digital Object Identifier (DOI)

• 10.1016/j.foodchem.2015.09.028

start page

• 374

end page

• 380

volume

• 196

URL

• http://dx.doi.org/10.1016/j.foodchem.2015.09.028