This study describe the procedure of extraction and spectroscopic analysis of Hesperidin, a naturally occurring citrus flavanone glycoside from leaves peel of three different citrus species, mandarin (C.reticulata),Clementine(C.clementina), sweet orange (C. sinensis). Hesperidin was isolated from orange peel by extracting the dry peel with petroleum ether. Spectroscopic analysis (UV, IR and NMR) confirms the structure and extent of purity of extracted Hesperidin. An improved procedure for the conversion of Hesperidin into high-purity, crystalline Hesperetin is reported.

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.

Oranges, fruits are bioactive citrus fruits belong to the Rutaceae, family. At the beginning of this study, Phytochemical screened of dried oranges peels showed the absence of coumarins, saponins, sterols, terpenoids, anthraqui-nones and protein. While the presence of flavonoids, alkaloids, carbohydrate, glycosides, tannins, polyphenol. Afterwards, Hesperetin (flavanone) and hes-peridins (flavanone glycoside) were extracted and isolated from dried oranges peels (citrus fruits) and characterized by FTIR spectra, TLC, melting point, Chemical test. In time antibacterial activity of Hesperetin and hesperi-dins studied against some pathogenic bacterial strains isolated from patients like Streptococcus, Acinetobacter, E.coli, Klebsiella, Staphylococcus, Aer-omonas. Eventually, Hesperetin (flavanone) showed a Higher biological activity significant than hesperidins and cefuroxime drugs.

Oranges, fruits are bioactive citrus fruits belong to the Rutaceae, family. At the beginning of this study, Phytochemical screened of dried oranges peels showed the absence of coumarins, saponins, sterols, terpenoids, anthraquinones and protein. While the presence of flavonoids, alkaloids, carbohydrate, glycosides, tannins, polyphenol. Afterwards, Hesperetin (flavanone) and hesperidins (flavanone glycoside) were extracted and isolated from dried oranges peels (citrus fruits) and characterized by FTIR spectra, TLC, melting point, Chemical test. In time antibacterial activity of Hesperetin and hesperidins studied against some pathogenic bacterial strains isolated from patients like Streptococcus, Acinetobacter, E. coli, Klebsiella, Staphylococcus, Aeromonas. Eventually, Hesperetin (flavanone) showed a Higher biological activity significant than hesperidins and cefuroxime drugs

Hesperidin is abundantly present as a flavanone glycoside in citrus fruits. The citrus peels, seeds, pulp, and cell and membrane residues contain a high amount of hesperidin. It has received scientific momentum lately as it offers several health benefits upon consumption, as it possesses antioxidant, anti-hypocholesteric, antitumor, anticancer, antimicrobial, antibacterial, anti-inflammatory, anti-diabetic properties, and so on. It is used in the treatment of various diseases and disorders such as type-II diabetes, cancer, cardiovascular diseases, and neurological and psychiatric disorders. Various extraction methods such as solvent extraction, cold extraction, microwave-assisted extraction (MAE), ultrasound-assisted extraction (UAE), and supercritical fluid extraction have been employed globally to obtain the maximum yield of hesperidin, which is also environment-friendly and cost-effective. The food industries produce a huge amount of citrus residue after the preparation of juices...

The processing of Mexican limes generates great amounts of peel as a byproduct. Lime peel is mainly rich in the flavonoid hesperidin, whose bioactivity is oriented mainly to cardiovascular diseases and cancer. The purpose of this work was to develop a green process for the extraction and purification of hesperidin from Mexican lime peel. The extraction of hesperidin was investigated on a laboratory scale by varying the solvent composition and the solid-to-solvent ratio. The best conditions (solid-to-solvent ratio of 0.33 g/mL and 60% ethanol) were used for the extraction of hesperidin in a pilot scale (Volume = 20 L). The kinetics of the extraction was studied to find the maximum hesperidin concentration at 100 min. The concentrated extract had a hesperidin content of 0.303 mg/mL. Next, a purification process using adsorption resins was assessed. Through static tests, it was determined that higher adsorption efficiencies were achieved with the EXA-118 resin and diluted extract (4:6 ...