Overview
Lycopene is a naturally occurring carotenoid pigment responsible for the red color in tomatoes, watermelons, and pink grapefruits. Unlike some carotenoids, it lacks provitamin A activity but exhibits potent antioxidant properties. Industrially, it is extracted from tomato pomace or synthesized for use in food, cosmetics, and health products. Its stability varies with processing methods; for instance, heat treatment enhances bioavailability by breaking down cell walls. Lycopene’s demand has grown in functional foods and nutraceuticals due to its association with reduced risks of certain chronic diseases.
Physical and Chemical Properties
Lycopene is a tetraterpene with 11 conjugated double bonds, contributing to its vibrant color and reactivity. It exists in multiple isomeric forms, with the all-trans configuration being the most stable. The compound degrades under prolonged exposure to light, heat, or oxygen, necessitating protective packaging. Its lipophilic nature makes it soluble in oils and organic solvents but insoluble in water. Emulsification techniques are often employed to improve dispersibility in aqueous systems, such as beverages. Analytical methods like HPLC are used to quantify lycopene content and purity.
Main Applications
In the food industry, lycopene serves as a natural colorant (E160d) in products like sauces, dairy, and confectionery. It is also a key ingredient in dietary supplements marketed for cardiovascular and prostate health. The cosmetic industry utilizes its antioxidant properties in anti-aging creams and sunscreens. Pharmaceutical research explores its potential in cancer prevention, though clinical evidence remains inconclusive. Emerging applications include pet food additives and functional textiles.
Safety and Storage
Lycopene is considered safe for consumption, with no established upper intake limit. However, excessive supplementation may lead to lycopenodermia, a harmless skin discoloration. Regulatory bodies like the FDA and EFSA approve its use within specified limits. Storage requires protection from oxidation and UV light. Vacuum-sealed containers with inert gas (e.g., nitrogen) are recommended for bulk quantities. Shelf life typically ranges from 2-3 years when stored below 25°C.
B2B Procurement Guide
Buyers should prioritize suppliers with transparent sourcing, especially for natural lycopene derived from non-GMO tomatoes. Key quality parameters include purity (≥90% for most applications), heavy metal content (<10 ppm), and microbial limits. For synthetic lycopene, inquire about manufacturing processes to ensure compliance with regional regulations (e.g., EU Novel Food). Bulk pricing often negotiates at 100kg+ quantities, with discounts for long-term contracts. Third-party lab testing is advisable for verification.
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