Hermetica Superfood Encyclopedia
The Short Answer
Hawthorn acid is a phenolic compound found in hawthorn (Crataegus species) that demonstrates significant antioxidant activity through free radical scavenging mechanisms. This bioactive compound exhibits ferric-reducing antioxidant power ranging from 0.32-1.84 mmol Fe²⁺/g dry weight in laboratory studies.
CategoryNamed Bioactive Compounds
GroupCompound
Evidence LevelStrong
Primary Keywordhawthorn acid benefits
Synergy Pairings3
Hawthorn Acid (Phenolic Acid) — botanical close-up
Health Benefits
Origin & History
Natural habitat
Hawthorn phenolic acids are a diverse group of bioactive compounds extracted from Crataegus species plants, including chlorogenic acid, caffeic acid, ferulic acid, and vanillic acid. These compounds are obtained through solvent extraction methods from hawthorn fruits, leaves, and flowers, with concentrations varying significantly across different plant parts and maturation stages.
“The research dossier does not provide specific information about traditional or historical use of hawthorn phenolic acids. While hawthorn is referenced as a medicinal plant, no details about traditional applications or cultural context were included in the provided studies.”Traditional Medicine
Scientific Research
The research dossier does not contain any human clinical trials or meta-analyses with PMIDs. Current evidence is limited to compositional analyses and in vitro antioxidant assays measuring the phenolic acid content and antioxidant capacity of various hawthorn extracts.
Preparation & Dosage
Traditional preparation
No clinically studied dosage ranges were provided in the research. Concentrations of key compounds include hyperoside (0.87-2.94 mg/g), chlorogenic acid (0.06-1.16 mg/g), and isoquercetin (0.24-1.59 mg/g) in dried hawthorn preparations. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Hawthorn Acid (Phenolic Acid) is a bioactive compound-class ingredient rather than a whole food macronutrient source; therefore classical macronutrient (fat, carbohydrate, protein) profiling is not applicable at the isolated compound level. Key documented characteristics include: Total Phenolic Content: 21.19–69.12 mg gallic acid equivalent (GAE)/g dry weight, varying significantly by plant part (fruit, leaf, flower) and extraction solvent. Dominant phenolic acid subclasses identified in hawthorn include chlorogenic acid, caffeic acid, protocatechuic acid, and p-coumaric acid, with chlorogenic acid frequently the most abundant individual phenolic acid at concentrations reported up to 15–30 mg/g dry weight in hawthorn fruit extracts. Flavonoid co-occurrence: Phenolic acids in hawthorn are accompanied by flavonoids (vitexin, hyperoside, rutin) at 1–10 mg/g dry weight, contributing synergistically to antioxidant activity. Antioxidant potency (FRAP): 0.32–1.84 mmol Fe²⁺/g dry weight. Free radical scavenging (IC50 antiradical): 16.73–60.36 μg/mL (lower values indicate stronger activity). Bioavailability notes: Phenolic acids are generally hydrophilic and absorbed in the small intestine and colon; chlorogenic acid bioavailability in humans is estimated at 33–67% of ingested dose, with colonic microbiota converting unabsorbed fractions to smaller phenolic metabolites (e.g., dihydrocaffeic acid) that retain biological activity. Mineral and vitamin content is not characterized at the isolated phenolic acid fraction level.
How It Works
Mechanism of Action
Hawthorn acid exerts its antioxidant effects through direct free radical scavenging and metal ion chelation pathways. The compound demonstrates ferric-reducing antioxidant power (FRAP) by donating electrons to neutralize reactive oxygen species and reduce Fe³⁺ to Fe²⁺. Its phenolic structure allows for hydrogen atom donation to stabilize free radicals and interrupt oxidative chain reactions.
Clinical Evidence
Current evidence for hawthorn acid comes primarily from in vitro laboratory studies measuring antioxidant capacity. Research shows antiradical activity varies significantly from 16.73-60.36 μg/mL depending on plant part used and extraction methodology employed. FRAP values demonstrate consistent antioxidant potential ranging 0.32-1.84 mmol Fe²⁺/g dry weight across different preparations. Human clinical trials specifically evaluating isolated hawthorn acid are currently lacking, limiting evidence strength for therapeutic applications.
Safety & Interactions
Specific safety data for isolated hawthorn acid is limited, though hawthorn extracts are generally well-tolerated in healthy adults. Potential interactions may occur with cardiovascular medications including digoxin, beta-blockers, and calcium channel blockers due to hawthorn's cardioactive properties. Individuals with hypotension should exercise caution as phenolic compounds may have additive blood pressure lowering effects. Pregnancy and lactation safety has not been established for concentrated hawthorn acid supplementation.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Crataegus phenolic acidsHawthorn polyphenolsCrataegus flavonoidsShan Zha phenolicsHawthorn tanninsCrataegus procyanidinsWhitethorn phenolics
Frequently Asked Questions
What is the effective antioxidant dose of hawthorn acid?
Laboratory studies show antiradical activity at concentrations of 16.73-60.36 μg/mL, though optimal human dosing has not been established. The wide range depends on extraction method and plant part used, with higher concentrations showing greater antioxidant potential.
How does hawthorn acid compare to other phenolic antioxidants?
Hawthorn acid demonstrates moderate antioxidant activity with FRAP values of 0.32-1.84 mmol Fe²⁺/g dry weight. This places it in the middle range compared to high-potency phenolics like quercetin or resveratrol, but shows consistent free radical scavenging capacity.
Can hawthorn acid interact with heart medications?
While specific data on isolated hawthorn acid is limited, hawthorn compounds may interact with cardiovascular drugs including digoxin and blood pressure medications. The phenolic structure could potentially enhance or interfere with cardiac medication effects, requiring medical supervision.
What extraction method produces the most potent hawthorn acid?
Research indicates antiradical activity varies dramatically from 16.73-60.36 μg/mL depending on extraction technique and plant part utilized. Specific extraction parameters that optimize hawthorn acid yield and potency require further standardization studies.
Is hawthorn acid safe during pregnancy?
Safety data for hawthorn acid supplementation during pregnancy and breastfeeding is insufficient for recommendations. Given the lack of specific studies on isolated hawthorn acid in pregnant women, avoidance is recommended until safety profiles are established.
What foods naturally contain hawthorn acid and can dietary sources provide therapeutic levels?
Hawthorn berries, leaves, and flowers are the primary natural sources of hawthorn acid, with total phenol content ranging from 21.19–69.12 mg gallic acid equivalent per gram dry weight depending on plant part and growing conditions. While hawthorn is traditionally consumed as tea or food, achieving therapeutic antioxidant doses through diet alone is challenging due to the relatively small quantities typically consumed in food form. Standardized supplements allow for consistent dosing that exceeds what natural dietary sources typically provide.
How does the bioavailability of hawthorn acid vary between different supplement forms (extract vs. powder vs. tea)?
Hawthorn acid bioavailability depends significantly on extraction method, with laboratory evidence showing free radical scavenging activity ranging from 16.73–60.36 μg/mL across different plant parts and extraction techniques. Concentrated standardized extracts typically deliver higher bioavailable phenolic compounds compared to whole powder or brewed tea, where phenolic content may be partially lost during preparation. The specific solvent used in extraction (water, ethanol, or mixed) directly influences which phenolic compounds are preserved and their subsequent absorption potential.
Who would benefit most from hawthorn acid supplementation based on current research?
Individuals seeking antioxidant support, particularly those interested in cardiovascular health promotion, may benefit from hawthorn acid supplementation given its demonstrated ferric-reducing antioxidant power (FRAP) of 0.32–1.84 mmol Fe²⁺/g dry weight. Those with elevated oxidative stress or cardiovascular concerns may find the polyphenol-rich profile particularly relevant, though supplementation is best undertaken under healthcare guidance. Populations with dietary gaps in phenolic-rich foods represent another potential beneficiary group, though effectiveness depends on consistent use and individual absorption capacity.
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