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Exploring the Authenticity of Hippophae elaeguacae Flavonoids: What exactly are the components of Hippophae elaeguacae flavonoids? What are their sources? Why are there such large differences between factories? What are the differences between HPLC and UV detection? This article will analyze the authenticity of Hippophae elaeguacae flavonoids from different perspectives.

What are Hippophae elaeguacae flavonoids? They're more than just antioxidants.

Hippophae elaeguacae flavonoids are one of the most important and representative bioactive components in Hippophae elaeguacae, and are the key reason why Hippophae elaeguacae is regarded as a " super fruit" and "natural health product "!

Hippophae elaeguacae flavonoids are a class of flavonoid compounds extracted from the fruit of Hippophae elaeguacae. It is not a single component but a complex. It mainly includes isorhamnetin, quercetin, and kaempferol. The key components are isorhamnetin, quercetin, and kaempferol, which are the most crucial and representative active ingredients in Hippophae elaeguacae flavonoids; their content directly determines the authenticity and price of the product.

I.Key indicators for judging the quality of Hippophae elaeguacae yellow berries.

1. Core ingredients and proportions

Authentic Hippophae elaeguacae flavonoids must contain isorhamnetin, quercetin, and kaempferol. These components are an important basis for determining whether flavonoids are "genuinely extracted" rather than "blended".

2. Check the source of the extraction.

Hippophae elaeguacae flavonoids can be extracted from the small berries of Hippophae elaeguacae. These berries are wild fruits of natural origin, generally distributed in Gansu and Xinjiang, China. Cultivated large Hippophae elaeguacae berries do not contain these components, so production capacity is limited and prices are high. 

3. Detection Methods - HPLC is the Gold Standard

Commonly available specifications on the market include 20 % Hippophae elaeguacae flavonoids, 30% Hippophae elaeguacae flavonoids, and high-content specifications of 40%-50%. Most of these are tested using UV chromatography. Researchers must use HPLC for testing, as this is a more accurate and reliable method, accurately determining the specific content of individual components such as isorhamnetin and quercetin, resulting in more precise results. High-quality Hippophae elaeguacae flavonoids extracted directly from the skin are typically tested and priced using HPLC. Focusing solely on UV chromatography can lead to inflated results, as it only measures the approximate total flavonoid content and cannot distinguish the specific flavonoids. This creates opportunities for adulteration. Some unscrupulous merchants use cheap rutin (a common flavonoid) to adulterate the product, making the total flavonoid content in the UV test appear "up to standard," but this contains almost no isorhamnetin, a component unique to Hippophae elaeguacae, requiring careful verification.

II.史雯.沙棘黄酮提取工艺及其应用研究[D].西北农林科技大学,2015.

Hippophae elaeguacae flavonoids have a wide range of effects, and their mechanism of action is closely related to their antioxidant, anti-inflammatory, and unique effects on the cardiovascular system.As early as the 1960s, the antioxidant activity of flavonoids was proven, and they were generally considered to function as antioxidants (Zhang Ying 1998). With the development of science, starting in the 1980s, research on flavonoids both domestically and internationally gradually shifted to their ability to scavenge reactive oxygen species and their preventative and therapeutic effects on various age-related diseases (Hu Chun 1996). To date, the powerful ability of many flavonoids to scavenge reactive oxygen species has been confirmed. Most studies indicate that flavonoids can act not only as excellent reactive oxygen species scavengers but also as excellent lipid antioxidants.Hippophae elaeguacae oil has significant bactericidal effects against Staphylococcus aureus, typhoid bacillus, dysentery bacillus, Escherichia coli, hemolytic streptococci, and some anaerobic bacteria.The pharmacological effects of Hippophae elaeguacae flavonoids on the cardiovascular system mainly include: anti-myocardial ischemia, anti-thrombosis, improvement of cardiomyocyte function, improvement of myocardial hypertrophy, anti-arrhythmia, and lipid-lowering and hypoglycemic effects (Wang Xinrui 2009). Quercetin can selectively bind to thrombi on the blood vessel wall, significantly inhibiting platelet aggregation; therefore, quercetin has a very good antithrombotic effect. The production of MDA-like substances in animals can be significantly inhibited by quercetin and its derivatives. The anticoagulant effect of flavonoid drugs not only maintains the normal state of microvessels but also improves myocardial collateral circulation, thus effectively improving myocardial collateral circulation in patients with heart failure.

III. Innovative Application Scenarios

Functional beverages: Combined with acerola cherry, turmeric, and other ingredients, to create an "anti-inflammatory and brightening" oral beauty drink.

Gummies and jellies: Utilize their natural colors and health properties to develop snack-like supplements that offer eye protection (by combining lutein) or heart health benefits.

Enhanced sun protection: Added to sunscreen formulas to improve broad-spectrum protection against ultraviolet rays.

Repairing Essence: Combined with Centella Asiatica Extract and Ectoin, this essence creates a soothing and repairing effect.