Non-Pharmaceutical Cyclodextrin Development
Overview
Due to their property of forming host-guest type inclusion complex, cyclodextrins and their derivatives have a large number of practical applications including foods, cosmetics, textiles, catalysis, agrochemistry, biotechnology, separation, and environmental protection. CD BioGlyco has the confidence to be your essential research assistant in the field of non-pharmaceutical cyclodextrin development.
Key Technologies
Starch gelatinization; Enzymatic Liquefaction; Spray-drying/freeze-drying
Applications of Cyclodextrins
Foods
The addition of β-cyclodextrin as a stabilizing or thickening agent can help to retain some aroma compounds in food matrices during cooking, pasteurization, and other thermal processes. To suppress unpleasant odors or tastes, cyclodextrins also can be used to remove or mask undesirable components. Moreover, the formation of inclusion complexes with cyclodextrins can protect some food components that are sensitive to degradation by oxygen, heat, or light.
Biological fields
Scientists have combined the host-guest recognition of cyclodextrin and adamantane with hyperbranched polyethyleneimine (PEI) and have synthesized hyperbranched PEI tubular micelles, which is a promising candidate gene carrier. In addition, porphyrinoids can mimic the functions of natural structures in light-harvesting systems. Cyclodextrins improve the photosensitizing properties of porphyrinoids by increasing their singlet oxygen quantum yield.
Cosmetics
Encapsulation techniques using cyclodextrins as (nano)encapsulating agents are increasingly used by cosmetic, fragrance, and flavor industries, toiletry and personal care sectors for improving the efficiency of odorant and aroma substances, odor control in perfumes, masking unpleasant smells and tastes of some compounds, improving the physical and/or stability of essential oils and volatile compounds, stabilizing volatiles by reducing or eliminating any losses through evaporation.
Environmental protection
Cyclodextrins play a crucial role in the field of environmental science concerning the enhancement and elimination of organic pollutants and heavy metals from the soil, water, and atmosphere and the solubility of organic contaminants. Cyclodextrins are also put into application in water treatment for enhancing the stabilization aspect, encapsulation, and adsorption of contaminants. One can get rid of extremely poisonous and lethal substances from industrial effluent by forming the inclusion complexes.
Catalysis
One of the most promising roles of cyclodextrins is in catalytic reactions. They have the capability to function as enzyme mimics. These are fabricated by changing the naturally occurring cyclodextrins with the substitution on its primary or secondary face with different functional groups or attaching various reactive groups. The substituted groups attached to the cyclodextrin molecule are responsible for the molecular recognition which makes the modified cyclodextrins beneficial as enzyme mimics.
Separation process
One of the main uses of cyclodextrins is as chemically bonded or sorbed ligands in the stationary phase or immobile phase during the separation process. Presently, cyclodextrins along with their derivatives are widely used in the case of chiral separations. In addition, hydrophilic cyclodextrins have been more commonly used as buffer modifiers in capillary electrophoresis to accomplish the chiral separation of drugs and specialty chemicals.
Textiles
Cyclodextrins have the capability to form inclusion complexes with a large number of organic molecules, and this property is responsible for its use in a variety of different textile applications. Since cyclodextrins can incorporate different dyes into their cavity, they should be able to act as retarders in a dyeing process.
Agrochemistry
Cyclodextrins can effectively encapsulate or bind the pesticide’s active ingredients in the material’s matrix with a sustained release profile and slow mobility in soil. Cyclodextrin molecules form complexes with a wide variety of agricultural substances such as insecticides, fungicides, herbicides, repellents, pheromones, and growth regulators.
Our Services
We provide customers with a wide range of cyclodextrins for commercial products and product development, and screen cyclodextrin derivatives to find suitable candidates that meet our clients' requirements.
- We have developed a range of cyclodextrins, which are used as food additives to stabilize flavors, remove unpleasant tastes and other undesirable compounds such as cholesterol, and eliminate microbial contamination and browning reactions.
- We provide the dry form of cyclodextrin powders, which are used for odor control in products like diapers, menstrual products, paper towels, etc.
- The synthesis of superparamagnetic iron-oxide nanoparticles and their nanocomposites with β-cyclodextrins is used for water purification.
- β-cyclodextrin and γ-cyclodextrin binding carboxymethyl chitosan (CM-chitosan) and carboxymethyl cellulose (CM-cellulose) as deodorants, which worked successfully on limonin, naringin, and caffeine.
- The complex of cyclodextrins and several substrates or cofactors (e.g., chlorogenic acid, polyphenols, cinnamic acid, Cu2+) can provoke the inhibition of pro-browning polyphenol-oxidase reactions.
- Providing the modified cyclodextrins beneficial as enzyme mimics in the catalysis.
Publication Data
DOI.: 10.3390/ijms25084547
Journal: International Journal of Molecular Sciences
Published: 2024
Results: The authors provide an overview of cyclodextrins, highlighting their unique structural properties as cyclic oligosaccharides with a hydrophilic exterior and hydrophobic cavity, enabling them to form inclusion complexes with various guest molecules. They briefly cover the history, common types (α-, β-, γ-cyclodextrin), and emphasize the broad significance of cyclodextrins due to their biocompatibility, biodegradability, and diverse applications across industries like pharmaceuticals, food, cosmetics, textiles, biotechnology, agriculture, and environmental remediation. The editorial introduces the 14 research articles and reviews accepted for publication in this special issue, summarizing each contribution's focus. These contributions showcase recent advances in cyclodextrin research, including novel drug delivery systems (e.g., improving solubility/stability of voriconazole, melphalan, ropinirole; folate-targeted cyclodextrin for leukemia treatment), studies on host-guest interactions (e.g., with sodium salicylate, estrogens, ferrociphenols, 4-phenylbutyrate), applications in bioactive peptide delivery (whey/colostrum hydrolysates), analytical methods (SARS-CoV-2 detection), material science (cyclodextrin-polymer biomaterials, silica-cyclodextrin hybrids), and computational studies (conformational analysis).
Workflow
Feedstock Preparation
Starch sources (e.g., corn, potato, tapioca) are processed into a slurry with adjusted pH and temperature to establish optimal conditions for enzymatic action.
Starch Liquefaction
We treat starch slurry with α-amylase to break down polymers into shorter dextrins, reducing viscosity.
Cyclodextrin Synthesis
We add cyclodextrin glucanotransferase (CGTase) to catalyze cyclization. Control pH, temperature, and reaction time to maximize target cyclodextrin yield (α, β, or γ-cyclodextrin).
Reaction Termination & Complex Formation
Following CGTase inactivation, selective complexing agents are introduced to form insoluble cyclodextrin inclusion complexes for subsequent separation.
Separation & Recovery
Cyclodextrin complexes are isolated via filtration or centrifugation, followed by the release of pure cyclodextrins by distillation or extraction.
Purification
We further purify cyclodextrins through chromatography (e.g., ion-exchange) and crystallization. Dry purified cyclodextrins into a stable powder (e.g., spray-drying).
Advantages
- We offer tailored cyclodextrin derivatives (e.g., hydroxypropyl-, sulfated-, or carboxymethyl-modified cyclodextrins) to meet specific client requirements, such as enhancing solubility or chiral selectivity.
- We provide odor-control solutions through the inclusion complex formation with volatile compounds.
- We combine enzymatic cyclization (CGTase) with efficient separation (complexation, chromatography, crystallization) for high-purity α-, β-, and γ-cyclodextrin production.
Associated Services
Based on non-pharmaceutical cyclodextrin development for food, environmental, and consumer applications, specialized analytical services ensure quality and functionality.
| Alpha Cyclodextrin Analysis Service | Beta Cyclodextrin Analysis Service | Gamma Cyclodextrin Analysis Service |
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Frequently Asked Questions
CD BioGlyco is committed to providing non-pharmaceutical cyclodextrin products to our customers. If you would like more details, please contact us.
Reference
- Esteso, M.A.; Romero, C.M. Cyclodextrins: properties and applications. International Journal of Molecular Sciences. 2024, 25(8): 4547. (Open Access)
