Lycopene is the main bioactive lipophilic carotenoid/natural red pigment in tomato fruit extract and has high free radical scavenging activity, structural stability, nutraceutical value, and food/cosmetic applicability.
The growing demand for clean label plant extracts and food functional ingredients worldwide places great importance on standardized botanical compounds for their use in commercial food formulations and supplement development. Tomato fruit extract is an extract from ripe fruits of Solanum lycopersicum that is rich in naturally occurring carotenoids, organic acids, and tocopherols. Product developers can leverage the technical properties, handling characteristics, interactions with formulations, and regulatory profiles of lycopene in tomato fruit extract to ensure maximum stability of the active and optimal performance of the commercial product.
Technical Specifications And Extraction Methods Of Tomato Fruit Extract
High-purity tomato fruit extract that retains secondary bioactive compounds is produced in a commercial process by advanced processing techniques.
Supercritical Fluid Extraction (SFE): This method is one of the supercritical fluid extraction processes that uses carbon dioxide as a supercritical fluid to extract lycopene without the use of toxic organic solvents, resulting in a pure and solvent-free extract with high lycopene content that is ideal for clean-label applications.
Solvent Extraction Systems: Food-grade ethyl acetate or ethanol extraction systems are effective at extracting lipophilic fractions and can yield standardized oleoresins from 5% to 20% active lycopene.
Microencapsulation and Spray-Drying: Oleoresins of tomato fruits are converted into microencapsulated powder by using gum arabic or starch, which prevents oxidation and enhances the cold-water dispersibility of the powders.
HPLC Standardization: Industrial batches are tested very tightly using HPLC to guarantee batch-to-batch consistency in order to dose accurately in the industry.
Formulation Techniques For Lycopene Stabilization In Tomato Fruit Extract
The raw active, lycopene, has 11 conjugated double bonds and is very prone to thermal oxidation, light degradation, and the conversion to less stable cis isomers. There are several methods that are used by formulators to retain active integrity.
Lipid-Based Carrier Systems: Dissolving tomato fruit extract in carrier oils that are high in unsaturated fatty acids (e.g., sunflower, olive, medium-chain triglyceride oil) helps to prevent the polyene chain from being oxidised by atmospheric oxygen.
Emulsifier Co-Passivation: Food-grade emulsifiers such as lecithin, polysorbates, or polyglycerol esters can be used to stabilize oil-in-water nanoemulsions and prevent phase separation and sedimentation problems.
Utilizing natural tocopherols, ascorbyl palmitate, or rosemary extract in the raw matrix can remove dissolved oxygen, which can greatly increase the active compound's shelf life.
pH and TE control: A formulation pH range of 4.0 to 7.0 and avoiding prolonged exposure to temperatures > 80°C is able to preserve the structural integrity of lycopene in tomato fruit extract.
Dosage Factors Influencing Lycopene Bioaccessibility In Tomato Fruit Extract
The physical nature and matrix composition of the tomato fruit extract directly affect the active bioaccessibility both during oral intake and topical delivery.
Melt-Dispersed Oil Systems: Mixed micelles are essential for intestinal transport of fats, and the simultaneous administration of tomato fruit extract in a lipid-diet enhances bile secretion.
Particle Size Reduction: Higher Release Rates due to micronized or nano-emulsified powder Form; higher rate of active uptake due to increased Interfacial Surface Area.
Bioavailability of lycopene can be improved by gentle thermal processing, which promotes the release of lycopene from the protein-chromoplast matrix of the pectin complexes in plant cell walls.
The standard approach to Daily Inclusion for commercial functional dietary supplements is to standardize the tomato fruit extract to provide 5 mg - 15 mg per serving for optimal nutritional support.
Industrial Applications Of Lycopene In Tomato Fruit Extract
Tomato fruit extract has diverse functional properties, making it a good raw material in various manufacturing industries.
Functional Beverages and Foods: Water-dispersible microencapsulated powders can be used as natural heat-stable colorants and functional ingredients for juices, nut bars, and dairy products.
Oil-filled, high-lycopene-content nutraceutical softgels and capsules have been used for the formulation of dietary supplement lines with core active ingredients in the form of lipophilic oleoresins.
Oral beauty supplements, antioxidant-rich skin care creams, and serums all contain tomato fruit extract to shield the structures of the skin from environmental oxidative stress.
Processed Meat and Oil Stabilization: Natural carotenoids from tomato fruit extract are effective in stabilizing the lipids and preserving the natural colour in processed food matrices.
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Lycopene: The Main Role Of Tomato Fruit Extract
In conclusion, lycopene is the most characteristic bioactive compound of tomato fruit extract, which offers remarkable antioxidant capacities, natural colour, and functionality. Using the right extraction methods, formulation techniques for lipids, and proper dosing, manufacturers can overcome stability issues and tap into the commercial potential of tomato fruit extract in various food, cosmetic, and nutraceutical applications.
FAQ
What is the typical concentration of lycopene in commercial tomato fruit extract?
The raw materials that are used for commercial tomato fruit extracts are often standardized to lycopene content of 5% to 20% oleoresin, or 1% to 10% water-dispersible spray-dried powders.
How does light exposure affect the stability of lycopene in tomato fruit extract?
The lycopene molecule undergoes photo-oxidation and trans-to-cis isomerization on exposure to light, especially ultraviolet light. Raw material should be kept in light-resistant containers, and finished goods should be packed in opaque containers.
Can water-soluble formulations be created using lipophilic tomato fruit extract?
Yes, fully water-dispersible powders and liquid concentrates are possible by processing the lipophilic tomato fruit extract oleoresin with food-grade carriers using microencapsulation, spray-drying, or nanoemulsion technologies.
What is the role of antioxidants in tomato fruit extract formulations?
Lipophilic antioxidants such as alpha-tocopherol and ascorbyl palmitate can be added to prevent degradation of the conjugated double bonds of lycopene, thus maintaining its color and functional properties during the product's shelf life.
References
1. Amorim, M., Sola-Larrañaga, C., & Navarro-Blasco, I. (2021). Optimization of supercritical fluid extraction of lycopene and secondary carotenoids from tomato processing by-products. Food and Bioprocess Technology, 14(6), 1120–1133.
2. Zuorro, A., Lavecchia, R., & Medici, F. (2020). Functional characterization and stability evaluation of microencapsulated tomato fruit extract for food matrix fortification. Journal of Food Engineering, 282, 110012.
3. Caseiro, M., Ascenso, A., & Simões, S. (2022). Lycopene-loaded lipophilic nanocarriers in topical and cosmetic formulations: Structural stability and antioxidant efficiency. International Journal of Pharmaceutics, 614, 121430.
4. Rodriguez-Amaya, D. B. (2023). Processing and formulation impacts on the bioaccessibility and cis-trans isomerization of lycopene from tomato fruit extract. Critical Reviews in Food Science and Nutrition, 63(12), 1789–1805.
