Acid-catalyzed hydrolysis of hesperidin at elevated temperatures.

  title={Acid-catalyzed hydrolysis of hesperidin at elevated temperatures.},
  author={K. Grohmann and J. Manthey and R. Cameron},
  journal={Carbohydrate research},
  volume={328 2},
Dilute sulfuric acid was used as a catalyst for hydrolysis of hesperidin suspensions in water at temperatures ranging from 25 to 180 degrees C. Significant acceleration of the reaction was observed at 120 degrees C and higher temperatures. This increase in the rate of hydrolysis can be attributed to increased solubilization of hesperidin in water at higher temperatures. Partial hydrolysis of hesperidin at 140 degrees C was used for the preparations of hesperetin-7-glucoside, which has a value… Expand
19 Citations
Hydrothermal Hydrolysis of Hesperidin Into More Valuable Compounds Under Supercritical Carbon Dioxide Condition
Synergistic effects of utilizing subcritical water and supercritical carbon dioxide were investigated for the hydrolysis of hesperidin into more valuable compounds at a pressure range of 10–25 MPaExpand
Reaction kinetics of hydrothermal hydrolysis of hesperidin into more valuable compounds under supercritical carbon dioxide conditions
Abstract A kinetic model and reaction mechanism of hydrothermal hydrolysis of hesperidin aided with supercritical carbon dioxide were elucidated. Experiments were carried out at 25 MPa, reactionExpand
Isolation of hesperidin from peels of thinned Citrus unshiu fruits by microwave-assisted extraction.
Simultaneous extraction by microwave-irradiation and crystallisation were performed in the same pot of solvent of 70% (v/v) aqueous ethanol for isolation of hesperidin from thinned immature fruitExpand
Highly efficient bioconversion of flavonoid glycosides from citrus-processing wastes in solvent-buffer systems
An efficient whole-cell biocatalytic method was developed for the cascade hydrolysis of flavonoid glycosides to their valuable hydrolyzates with high substrate conversions. Cells of Aspergillus nigerExpand
Solubility of Hesperetin in Mixed Solvents
The study of the solubility of important biomolecules such as flavonoids is essential to support the design of several separation processes in the food and pharmaceutical industries. Following ourExpand
Synthesis of hesperetin 7-O-glucoside from flavonoids extracted from Citrus waste using both free and immobilized α-l-rhamnosidases
Abstract This work was aimed to design alternatives to semi-synthesize hesperetin 7-O-glucoside (HG), a low occurrence natural product, from the flavonoids hesperidin (HES) and neohesperidin (NEO)Expand
Compositional and structural characterization of pectic material from Frozen Concentrated Orange Juice
Abstract In citrus juices pectin is one of the major components of the suspended cloud material that imparts desirable appearance, texture and flavor. Citrus pectin is a structurally diverseExpand
Carbocatalysed hydrolytic cleaving of the glycosidic bond in fucoidan under microwave irradiation
Biomass valorization involves breaking down naturally occurring long chain polysaccharides into their constituent monomers. The polysaccharide chain consists of monomers adjoined via C (carbon)–OExpand
By-product of honeybush (Cyclopia maculata) tea processing as source of hesperidin-enriched nutraceutical extract
Abstract Cyclopia maculata (honeybush) plant material was evaluated to determine its potential as renewable source material for hesperidin-enriched extract preparation. Stems contained significantlyExpand
Clean recovery of antioxidant flavonoids from citrus peel: Optimizing an aqueous ultrasound-assisted extraction method
Abstract One of the main reasons for unsuccessful recovery of flavonoids from citrus by-products is the absence of effective extraction procedures. In this work, flavonoid fractions were obtainedExpand


Concentrations of hesperidin and other orange peel flavonoids in citrus processing byproducts
The concentrations of flavonoids were measured in the peel of different orange (Citrus sinensis L.) varieties and compared to the distributions of flavonoids in the byproducts of orange processing.Expand
The compositional analysis of bacterial extracellular polysaccharides by high-performance anion-exchange chromatography.
The overproduction of extracellular polysaccharide in E. coli CWG56 was shown to be a consequence of deregulation of K30 biosynthesis and not of coexpression of an additional polymer. Expand
Volatile Compounds in Foods and Beverages
Collects the information available in the literature on volatile compounds in foods and beverages. This information is given in 17 chapters, each dealing with a specific product or product group.Expand
The chemistry of flavonoid compounds
We may not be able to make you love reading, but the chemistry of flavonoid compounds will lead you to love reading starting from now. Book is the window to open the new world. The world that youExpand
Candida tropicalis: a major pathogen in immunocompromised patients.
Of 89 consecutive patients undergoing treatment for hematologic malignancies or undergoing allogeneic bone marrow transplantation, 60 were colonized with Candida albicans and 25 with C. tropicalis, and four patients died due to the infection, and two died from other causes but with the infection unresolved. Expand