Polyphenols and anthocyanins have emerged as star ingredients in the health and wellness industry, prized by R&D teams and product developers for both their science-backed health benefits and functional roles in formulations. These plant-derived compounds are behind the vibrant colors of berries and cherries, and they’re increasingly found in everything from antioxidant supplements to clean-label beverages. In this blog, we’ll break down what polyphenols and anthocyanins are, how they support health, why they’re trending in product development, and how they contribute to better formulations; from boosting antioxidant content to acting as natural colorants. We’ll also spotlight Select Ingredients’ CherryMax™ tart cherry extract (25% polyphenols) and ElderMax™ elderberry extract (7% anthocyanins) as premium sources of these compounds for your next innovation.
Polyphenols are a broad family of phytochemicals (over 8,000 identified) found abundantly in plants; fruits, vegetables, tea, coffee, herbs, and more. By definition, a polyphenol is any plant compound with multiple phenolic (aromatic) rings. This family encompasses several subclasses, including flavonoids (e.g. quercetin, catechins, and anthocyanins), phenolic acids (like chlorogenic acid in coffee), tannins (proanthocyanidins in grape seeds), and others. Essentially, polyphenols are the bioactive pigments and defense molecules that plants produce to protect themselves from UV radiation, pests, and diseases. When we consume plant foods or extracts rich in polyphenols, we too can benefit from their protective effects.
Anthocyanins, in particular, are a type of flavonoid polyphenol responsible for the red, purple, and blue hues in many fruits and vegetables. They are water-soluble pigments that reside in the plant cell vacuoles (for example, in berry skins or cherry flesh) and act as natural colorants. If you’ve admired the deep red of tart cherries or the rich blue of blueberries, that’s the work of anthocyanins. Interestingly, the color of anthocyanins can change with pH; appearing red in acidic environments (like in a low-pH beverage) and shifting to blue or purple in more alkaline conditions. These pigments have been used for centuries as natural food dyes, and today they are designated as food colorant E163 in the EU due to their safety and natural origin. Importantly, anthocyanins are not just pretty pigments; they belong to the same health-promoting polyphenol family and carry their own set of benefits.
Anthocyanin-rich berries (like blueberries) owe their deep colors to these compounds. Anthocyanins are water-soluble pigments that make blueberries blue and cherries red. They are a subclass of flavonoid polyphenols, meaning all anthocyanins are polyphenols, but not all polyphenols are anthocyanins.
To summarize the relationship: polyphenols are the big category of plant compounds known for health benefits, and anthocyanins are a specific group within that category known for their vibrant colors. Below is a quick comparison:
Aspect | Polyphenols (General) | Anthocyanins (Specific) |
---|---|---|
Definition | Large class of plant secondary metabolites with multiple phenolic rings. Includes flavonoids, phenolic acids, tannins, etc. | Pigmented flavonoid subgroup that gives red, purple, blue colors to plants. Chemically, glycosylated flavonoids (flavylium ions). |
Dietary Sources | Widespread in plant foods: fruits (berries, apples), vegetables, tea, coffee, cocoa, herbs. | Primarily in red/blue fruits and veggies: all kinds of berries, cherries, red grapes, purple cabbage, purple sweet potatoes. |
Notable Properties | Antioxidant (free radical scavenging), anti-inflammatory, supportive of heart and metabolic health. Some polyphenols (e.g. catechins, rosmarinic acid) also extend shelf-life in foods due to antioxidant activity. | Powerful antioxidants as well; also contribute to plant UV protection. Known for cardiovascular, cognitive, and vision benefits (many are linked to improved blood flow and eye health). Provide intense natural color (used as natural colorants in food/drinks). |
Formulation Traits | Many polyphenols are moderately soluble in water (especially glycosides) but some need solvents (e.g. quercetin is poorly water-soluble). Polyphenol-rich extracts can be powders or liquids; some have astringent flavors (tannins). | Highly water-soluble (due to their structure as glycosides) – easy to incorporate into beverages, gummies, and syrups. Provide attractive color to formulations naturally. Generally stable in acidic conditions (ideal for tart beverages or gummies), but sensitive to heat/alkaline pH which can cause color fading. |
One reason polyphenols have drawn so much interest is their broad spectrum of health benefits supported by a growing body of scientific research. Polyphenols are perhaps best known as antioxidants, molecules that can neutralize free radicals and reduce oxidative stress in the body. Oxidative stress is linked to aging and many chronic diseases, and antioxidants from the diet are thought to help mitigate this damage. Polyphenols like flavonoids are potent scavengers of free radicals and can even chelate (bind) metal ions to prevent radical formation. By protecting our cells from oxidative damage, polyphenols help maintain cellular health and reduce the risk of chronic conditions.
Beyond their antioxidant activity, many polyphenols are anti-inflammatory. They can modulate pathways in the body to lower inflammation, for example, inhibiting enzymes like COX-2 and suppressing pro-inflammatory cytokines. Chronic inflammation is a driver of ailments from joint pain to cardiovascular disease, so dietary polyphenols (like those in turmeric, green tea, or tart cherries) that help tame inflammation are valuable. Research has linked polyphenol-rich diets to benefits in heart health, metabolic health, brain function, and more.
Anthocyanins, as a subset of polyphenols, share many of these benefits and have some specific highlights. These red-blue pigments have been studied for their role in cardiovascular health, blood sugar management, cognitive function, and cancer prevention. Berries rich in anthocyanins (like blueberries, elderberries, and bilberries) have shown positive effects on blood vessel function and blood pressure, likely because anthocyanins improve nitric oxide production and vascular flexibility. Anthocyanins also seem to assist in regulating blood sugar levels by improving insulin sensitivity. There’s promising research on their neuroprotective effects; diets high in berry anthocyanins have been linked to slower cognitive decline in older adults, potentially by reducing oxidative stress and inflammation in the brain.
It’s important to note that much of the evidence for polyphenols’ benefits comes from epidemiological studies (linking high-polyphenol diets to better health outcomes) and controlled experiments (in vitro or animal studies). However, human clinical trials are growing. For example, tart cherry juice (rich in anthocyanins and other polyphenols) has been shown in multiple human studies to reduce muscle soreness and improve recovery after exercise, attributed to its anti-inflammatory and antioxidant effects. Likewise, elderberry (loaded with anthocyanins) is traditionally known for immune support, and some clinical research suggests elderberry extracts can reduce the duration and severity of cold/flu symptoms, likely due to antiviral and immune-modulating effects of its polyphenols.
In short, polyphenols and anthocyanins serve as protectors in our bodies, guarding our cells and tissues from oxidative and inflammatory damage, and supporting the normal function of the heart, brain, and immune system. This impressive resume of health benefits is a major reason they are so popular in supplements and functional foods today.
Tart cherries are packed with anthocyanins (which give them their red hue) and other polyphenols. These compounds have been linked to reduced exercise-induced inflammation and joint pain, making tart cherry extracts a popular ingredient for recovery and mobility supplements.
So, why are R&D teams and product developers increasingly incorporating polyphenols and anthocyanins into their formulations? Several converging trends in the food, beverage, and nutraceutical industries help explain this surge:
From a formulation standpoint, polyphenols and anthocyanins bring several practical benefits to the table:
Incorporating polyphenols and anthocyanins requires attention to sourcing and standardization. The activity and benefit depend on the content of the actual bioactive compounds (e.g. how many milligrams of total polyphenols or anthocyanins). Reputable suppliers provide standardized extracts, for example, an extract might be labeled as 25% total polyphenols or 2% anthocyanins by weight. Such standardization is key for formulation consistency and making sure the consumer gets the intended dose of actives. It’s also useful for making science-backed claims: if studies show benefits at a certain dosage of anthocyanins, a standardized ingredient helps achieve that in each serving.
When selecting polyphenol and anthocyanin ingredients, quality and potency make all the difference. Select Ingredients offers two standout extracts that exemplify the best of what these compounds can deliver:
By using ingredients like CherryMax™ and ElderMax™, product developers can confidently infuse their offerings with high-impact polyphenols and anthocyanins. These ingredients are produced to ensure consistency, potency, and regulatory compliance, taking the guesswork out of formulating with botanicals. And as we’ve explored, the payoff is substantial; robust antioxidant activity, appealing natural colors, and health benefits that today’s consumers actively seek out.
Polyphenols and anthocyanins represent a perfect fusion of nature’s wisdom and scientific validation. They connect the vivid colors and flavors of plants with cutting-edge nutritional science, enabling health and wellness brands to create products that are both attractive and effective. From an R&D perspective, they tick all the boxes: compelling research, multifaceted functionality in formulations, and resonance with consumer trends (natural, plant-based, antioxidant-rich). Educating your team and customers about these compounds, what they are and why they matter, can add credibility and desirability to your product story.
As you innovate your next food, beverage, or supplement, consider the rich palette of polyphenols at your disposal. Whether it’s the deep red anthocyanins of tart cherries or the broad-spectrum polyphenols of a green tea extract, leveraging these natural compounds can elevate your formulation to the next level. The health-conscious consumers of today appreciate products that deliver more than basic nutrition; polyphenols and anthocyanins provide that “functional boost” with a clean-label appeal.