Hesperitin(520-33-2)

Hesperetin (CAS: 520-33-2), chemically named 5,7,3'-Trihydroxy-4'-methoxyflavanone, has the chemical formula C₁₆H₁₄O₆ and a molecular weight of 302.28. It is a naturally occurring dihydroflavone compound, mainly derived from plants of the genus Citrus in the Rutaceae family, such as the peel, pulp and juice of oranges, grapefruits and citrus. As one of the important active nutrients in citrus fruits, Hesperetin has both natural safety and diverse biological activities. Although it has poor water solubility, it is widely used in food additives, dietary supplements, cosmetics and pharmaceutical intermediates due to its prominent effects such as antioxidant, anti-inflammatory and cardiovascular protection, making it a natural functional raw material with both nutritional and application value.

In terms of physical and chemical properties, Hesperetin appears as pale yellow needle crystals or crystalline powder, odorless, tasteless and non-irritating, with stable physical and chemical properties. Its melting point is about 226-228℃, and its specific rotation is -18.2° (c=0.5, EtOH). Its solubility has obvious characteristics: it is sparingly soluble in cold water, slightly soluble in hot water, and easily soluble in organic solvents such as methanol, ethanol, acetone and ether. It can dissolve in alkaline solutions and show yellow color. This solubility feature requires solvent compounding or formulation technology to improve its water solubility and application adaptability in product processing. Hesperetin has a certain tolerance to strong light and high temperature, and can be stored stably in a normal temperature and dry environment. However, long-term exposure to strong light, high temperature or high humidity is prone to oxidative inactivation. Therefore, it must be stored in sealed, light-proof and dry conditions to avoid moisture absorption, caking or component degradation, ensuring the purity and activity stability of the product.

In terms of production process, Hesperetin is mainly prepared from citrus peel as raw material by green and environmentally friendly extraction and purification processes. At present, the mainstream processes include solvent extraction, ultrasonic-assisted extraction, microwave-assisted extraction and enzymatic extraction. Among them, ultrasonic-assisted extraction has become the preferred industrial production process due to its high extraction efficiency, short time consumption and low energy consumption. The production process mainly includes precision steps such as raw material pretreatment, extraction, filtration, concentration, purification, crystallization, drying and packaging. After cleaning and crushing, the raw materials are extracted with organic solvents such as ethanol, and then impurities are removed by column chromatography, recrystallization and other methods to improve product purity. In industrial production, high-purity Hesperetin can be stably produced with a purity of more than 98% and impurity content controlled below 2%, meeting the relevant industry standards of food grade, cosmetic grade and pharmaceutical grade, and can meet the large-scale application needs of different fields. There are various packaging specifications, suitable for laboratory research and industrial production.

The core value of Hesperetin lies in its diverse and mild biological activities. Verified by a large number of experiments, it is extremely safe with no obvious toxic and side effects, suitable for long-term use, and has been approved as a food additive and dietary supplement raw material in many countries and regions. Its core functions are concentrated in antioxidant, anti-inflammatory, cardiovascular protection, skin care and other aspects: as a natural antioxidant, Hesperetin can efficiently scavenge excess free radicals in the body, inhibit lipid peroxidation, reduce the damage of free radicals to cells, delay body aging and skin aging. Its antioxidant capacity is better than that of vitamin C, and it is mild and non-irritating; in terms of anti-inflammatory, it can inhibit the release of inflammatory factors, relieve inflammatory reactions, and has a certain auxiliary improvement effect on skin inflammation, gastrointestinal inflammation and other conditions.

In addition, Hesperetin also has good cardiovascular protection effect, which can enhance blood vessel toughness, regulate blood vessel permeability, assist in improving microcirculation, and have a positive effect on cardiovascular health. It is suitable for adding to dietary supplements, suitable for middle-aged and elderly people; in the field of skin care, it can inhibit melanin production, brighten skin tone, repair skin barrier, soothe skin sensitivity, improve dry and rough skin, and is widely used in high-end skin care products; in the food field, it can be used as a natural antioxidant and flavor enhancer, added to fruit juices, pastries, beverages and other products to extend the shelf life of food and improve the nutritional value of products. Pharmacokinetic studies have shown that Hesperetin can be slowly absorbed in the gastrointestinal tract after oral administration, mainly metabolized in the liver, and metabolites are excreted in urine. Although its bioavailability is lower than that of its glycoside form (hesperidin), it can be effectively improved through formulation optimization.

In terms of application scenarios, Hesperetin is widely used in four major fields: food, health products, cosmetics and medicine. In the food field, as a natural food additive, it is used for antioxidant, preservation and flavor regulation, suitable for various food production; in the field of dietary supplements, it can be made into tablets and capsules alone, or combined with other flavonoids and vitamins to make compound supplements, focusing on antioxidant and cardiovascular protection effects; in the field of cosmetics, as an active raw material, it is applied to toners, essences, face creams and other products, focusing on anti-aging, brightening and soothing; in the pharmaceutical field, as a pharmaceutical intermediate, it is used for the R&D of anti-inflammatory and cardiovascular protection drugs to assist in improving the symptoms of related diseases.

With the popularization of natural health concepts and the increasing demand for functional raw materials from consumers, the market demand for Hesperetin continues to rise due to its natural origin, safety, mildness and clear efficacy. In the future, with the continuous optimization of production processes, its water solubility will be further improved, its application scenarios will be continuously expanded, and more pharmacological effects will be further explored, making it play a greater role in the food, big health and cosmetic fields, and become one of the core products in the field of natural functional raw materials.