Abstract
The peels of citrus fruits contain a high concentration of bioactive compounds. Among these compounds, hesperidin stands out for its beneficial health effects. This study had the objective of evaluating the hesperidin content in peel samples of different citrus fruit and to propose the development of a functional product obtained from these peels. The peels were lyophilized and had the total flavonoids analyzed by high-performance liquid chromatography. The peels of several fruits were dried in a microwave oven and ground in a blender to obtain a homogeneous powder. This material was submitted to extraction and quantification of hesperidin. The highest concentrations were found in the ‘Ponkan’ tangerine, ‘Murcott’ tangerine and ‘Navel’ orange, while the lowest were found in the ‘Sicilian’ lemon and ‘Lima’ orange. The functional ingredient obtained from the ground peels after microwave drying can be used for direct consumption or to enrich food preparations.
Highlights
A diet rich in fruits is recognized as a factor that can prevent non-transmissible chronic diseases and generally protect health (Gillman, et al, 1995; He, et al, 2007; Bae, et al, 2008)
Citrus fruits are among the main preferences of a large portion of consumers, attracted by the organoleptic properties, and are among the leading fruits cultivated in the world
They contain a wide range of nutrients, such as vitamin C and A, folic acid, potassium and phosphorus, as well as fibers. Citrus fruits such as oranges, tangerines, limes and lemons have various health benefits due to their contents of bioactive substances, many of which belong to the flavonoids class (He, et al, 2011; Mencherini, et al, 2013; Cicero, et al, 2015; Salvo, et al, 2016; Zhou, et al, 2016; Metro, et al, 2018)
Summary
A diet rich in fruits is recognized as a factor that can prevent non-transmissible chronic diseases and generally protect health (Gillman, et al, 1995; He, et al, 2007; Bae, et al, 2008). Citrus fruits are among the main preferences of a large portion of consumers, attracted by the organoleptic properties, and are among the leading fruits cultivated in the world They contain a wide range of nutrients, such as vitamin C and A, folic acid, potassium and phosphorus, as well as fibers. Citrus fruits such as oranges, tangerines, limes and lemons have various health benefits due to their contents of bioactive substances (naringin, hesperidin, hesperetin, neohesperidin, alkaloids and hydroxamic acids), many of which belong to the flavonoids class (He, et al, 2011; Mencherini, et al, 2013; Cicero, et al, 2015; Salvo, et al, 2016; Zhou, et al, 2016; Metro, et al, 2018). Among its health benefits are treatment and prevention of obesity (Ohara et al, 2015), type II diabetes (Homayouni, et al, 2018) and cardiovascular ailments (Salden, et al, 2016), as well as action against hepatocarcinogenesis (Fernández-Bedmar, et al, 2017) and enhancement of neurocognition (Matias, et al, 2017) and capillary permeability (Garg, et al, 2001)
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