Black Trumpet

Metadata

Regulatory Status

European Union

• Food status: Long-established traditional food mushroom across Europe with centuries of documented culinary use. Not classified as a novel food when sold as whole mushroom.
• Commercial trade: Widely harvested and sold in France (one of the most popular wild mushrooms), Spain, Italy, Portugal, and Eastern Europe. Available dried year-round in specialty shops.
• Harvesting regulations: Subject to regional foraging regulations and seasonal restrictions in many European countries.

United States

• Food status: Recognized as a traditional edible mushroom. Wild-harvested and sold through specialty channels, farmers markets, and foraging cooperatives.
• Dietary supplement: Not marketed as a dietary supplement in standardized form.
• FDA GRAS status: No specific GRAS determination.

China

• Not listed in the Chinese Pharmacopoeia. Not widely consumed in East Asian culinary traditions, though some related Craterellus species are used in Yunnan cuisine.

Japan

• Not listed in the Japanese Pharmacopoeia. Not a traditional food mushroom in Japan.

Conditions & Indications

Primary: Antioxidant Activity and Nutritional Supplementation (Nutritional / Preclinical Evidence)

• Phenolic antioxidant content: Aqueous and methanolic extracts demonstrate strong antioxidant activity in DPPH, ABTS, and ferric reducing power assays. The aqueous dry extract exhibits the highest total phenolic content and superior antioxidant capacity.
• Piceatannol content: Screening of mushroom bioactivity identified piceatannol (a stilbenoid related to resveratrol) as a bioactive ingredient in the order Cantharellales, including C. cornucopioides. Piceatannol is associated with anti-inflammatory, anticancer, and cardioprotective properties.
• Nutritional significance: With up to 69% protein on dry weight basis, significant vitamin B12 content (1.09—2.65 ug/100g DW — unusual for non-animal sources), notable beta-glucan content, and rich mineral profile (high iron), black trumpet is nutritionally exceptional among wild mushrooms.

Secondary: Selective Cytotoxic Activity (Preclinical Evidence)

• Cancer cell selectivity: Cyclohexane and dichloromethane extracts exhibit significant cytotoxic activity against HeLa (cervical cancer) and A549 (lung adenocarcinoma) cell lines. Critically, no cytotoxic effect was detected against normal human cells, demonstrating selective anticancer potential.
• Anti-inflammatory and antimutagenic: Extracts show anti-inflammatory activity through reduction of pro-inflammatory mediators and antimutagenic properties in genotoxicity assays.

Emerging/Preclinical: ACE Inhibitory and Cardiovascular Effects

• ACE inhibition: In vitro studies demonstrate angiotensin-converting enzyme (ACE) inhibitory activity, suggesting potential antihypertensive relevance. ACE inhibitors are a major class of cardiovascular drugs, and natural ACE inhibitory compounds from edible sources represent an area of active research.
• Polysaccharide immunomodulation: Polysaccharide fractions from C. cornucopioides show immunostimulating activity, enhancing immune cell function in vitro.
• Antihyperglycemic activity: Preliminary evidence suggests blood glucose-lowering effects in experimental models. [NEEDS-RESEARCH]

Mechanism of Action

Primary Mechanisms

1. Phenolic and stilbenoid antioxidant defense: Flavonoids, phenolic acids, and tannins act through multiple antioxidant mechanisms: hydrogen atom transfer (HAT), single electron transfer (SET), and metal chelation. Piceatannol, a hydroxylated analog of resveratrol, provides additional antioxidant activity through direct radical scavenging and modulation of Nrf2-mediated antioxidant enzyme expression.

2. Selective cytotoxicity via apoptotic pathways: Non-polar extracts (cyclohexane, dichloromethane fractions) induce apoptosis selectively in cancer cells while sparing normal cells. The mechanism likely involves terpenoid and sterol compounds that disrupt cancer cell membrane integrity and activate intrinsic apoptotic pathways. The selectivity suggests targeting of cancer-specific vulnerabilities rather than general cytotoxicity.

3. ACE inhibition: Bioactive peptides and phenolic compounds competitively or non-competitively inhibit angiotensin-converting enzyme, reducing conversion of angiotensin I to the vasoconstrictive angiotensin II. This mechanism parallels pharmaceutical ACE inhibitors (captopril, enalapril) but at lower potency.

Secondary Mechanisms

• Beta-glucan immunomodulation: Beta-glucan polysaccharides interact with dectin-1 and complement receptor 3 (CR3) on innate immune cells, stimulating phagocytic activity and cytokine production. This contributes to the immunostimulatory effects observed in vitro.
• Vitamin D2 nutritional activity: Ergocalciferol from black trumpet is metabolically converted to active 1,25-dihydroxyvitamin D2, regulating calcium homeostasis, immune function, and expression of over 200 genes.
• Polysaccharide antioxidant activity: A novel polysaccharide fraction from C. cornucopioides fruiting bodies demonstrates structural antioxidant properties through hydroxyl radical scavenging and reducing power.

Clinical Evidence Summary

No human clinical trials have been published for Craterellus cornucopioides for any therapeutic indication. All evidence is from in vitro studies and compositional analyses.

Preclinical Evidence (Selected)

Evidence Limitations

• No human clinical trials exist for any therapeutic indication.
• Cytotoxic and ACE inhibitory effects demonstrated only in vitro; in vivo validation is needed.
• The species cannot be reliably cultivated, making standardized extract production challenging.
• Wild-harvested specimens show significant variability in bioactive content depending on habitat, substrate, geographic origin, and season.
• Heavy metal bioaccumulation in wild specimens is a documented concern requiring monitoring.
• Vitamin B12 content, while notable, requires confirmation of bioavailability in human digestion.
• Publication bias may favor positive results.

Safety Profile

General Assessment

C. cornucopioides is a widely consumed and well-regarded wild edible mushroom with centuries of safe culinary use across Europe. It has a distinctive funnel-shaped morphology that reduces misidentification risk. No toxicity has been documented at any dietary consumption level. The French common name “Trompette de la Mort” (Trumpet of the Dead) refers to its dark coloration and autumn fruiting near cemeteries, not to any toxic property.

Contraindications

• Mushroom allergy: Individuals with known allergy to Cantharellaceae should avoid consumption.
• Contaminated harvest sites: Like all wild mushrooms, C. cornucopioides can bioaccumulate heavy metals from contaminated soils. Specimens from polluted environments should be avoided.

Drug Interactions

• No documented drug interactions at culinary consumption levels. Theoretical ACE inhibitory activity is unlikely to be clinically relevant at typical dietary intake levels, but individuals on ACE inhibitor medications should be aware of the in vitro findings. [UNCERTAIN]

Side Effects

• Common: None documented at culinary consumption levels.
• Uncommon: Mild gastrointestinal discomfort if consumed undercooked or in large quantities.
• Rare: Allergic reactions in fungal-sensitive individuals.

Toxicology

• No acute or chronic toxicity documented.
• No known toxic lookalikes — the distinctive morphology makes C. cornucopioides one of the safest wild mushrooms to forage.

Clinical Dosage

No Established Therapeutic Dosage

No human clinical trials have been conducted, so no evidence-based therapeutic dosage recommendations exist.

Culinary Consumption (Nutritional Relevance)

• Typical serving: 30—100 g fresh mushroom per meal; 5—15 g dried
• Vitamin D2 contribution: Significant vitamin D2 content, particularly in sun-exposed specimens. Drying preserves vitamin D2 content.
• Iron contribution: Notable iron content contributes to mineral intake, particularly relevant for vegetarian and vegan diets.
• Vitamin B12: Content of 1.09—2.65 ug/100g DW is nutritionally relevant, though bioavailability requires confirmation.
• Preparation: Often used dried and reconstituted due to thin, delicate flesh that dries easily. Pairs well with cream sauces, risotto, pasta, and egg dishes.

Dried Mushroom Powder (Nutritional Use)

• Estimated intake: 3—10 g/day of dried mushroom powder for nutritional supplementation
• Note: Nutritional rather than therapeutic dosing; no clinical evidence supports specific therapeutic doses

Practical Considerations

C. cornucopioides cannot be commercially cultivated, resulting in complete dependence on wild harvest and making standardized medicinal product development impractical. Any therapeutic application would require development of cultivation methods or isolation of specific bioactive compounds.

Sources

• Kolundzic M, Grozdanic N, Stanojkovic T, et al. Black Trumpet, Craterellus cornucopioides (L.) Pers.: culinary mushroom with angiotensin converting enzyme inhibitory and cytotoxic activity. Pol J Food Nutr Sci. 2022;72(2):175-183
• Kosanic M, Rankovic B, Stanojkovic T, et al. Craterellus cornucopioides edible mushroom as source of biologically active compounds. Nat Prod Commun. 2019;14(5):1-6
• Costea T, Hudiță A, Olaru OT, et al. Chemical composition, antioxidant activity and cytotoxic effects of Romanian Craterellus cornucopioides (L.) Pers. mushroom. Farmacia. 2020;68(2):340-347
• Dimitrijevic MV, Mitic VD, Nikolic JS, et al. Comprehensive review of functional and nutraceutical properties of Craterellus cornucopioides (L.) Pers. Nutrients. 2024;16(6):831
• Liu Y, Zhang B, Ibrahim SA, et al. Structural characterization and antioxidant activities of a novel polysaccharide fraction from the fruiting bodies of Craterellus cornucopioides. Int J Biol Macromol. 2019;126:973-981
• Grundemann C, Reinhardt JK, Lindequist U. Screening of mushrooms bioactivity: piceatannol was identified as a bioactive ingredient in the order Cantharellales. Eur Food Res Technol. 2018;244(5):861-869
• Barros L, Baptista P, Correia DM, et al. Fatty acid and sugar compositions, and nutritional value of five wild edible mushrooms from Northeast Portugal. Food Chem. 2007;105(1):140-145
• Watanabe F, Yabuta Y, Bito T, Teng F. Vitamin B12-containing plant food sources for vegetarians. Nutrients. 2014;6(5):1861-1873

Connections

• Chanterelle (Cantharellus cibarius): Chanterelle is a close relative in the Cantharellaceae family, sharing the antioxidant-longevity category and uncultivatable ectomycorrhizal ecology. Chanterelle offers higher vitamin D2 content while black trumpet provides more distinctive flavor and potentially higher iron content. Both are premier wild-harvested edible mushrooms with emerging preclinical medicinal evidence.
• Oyster Mushroom (Pleurotus ostreatus): Oyster Mushroom provides a cultivatable comparison for edible mushrooms with antioxidant and cardiovascular-relevant bioactive compounds. Unlike black trumpet, oyster mushroom can be standardized for medicinal product development.
• Shiitake (Lentinula edodes): Shiitake offers well-established polysaccharide-driven immunomodulatory evidence that contrasts with black trumpet’s entirely preclinical status. Both provide significant nutritional value and beta-glucan content.
• Nutritional significance context: Black trumpet’s combination of very high protein content, significant vitamin B12 (rare in non-animal sources), notable iron content, and robust antioxidant phenolic profile positions it as one of the most nutritionally valuable wild mushrooms. The selective cytotoxic activity against cancer cells without harming normal cells is a particularly promising finding warranting further investigation.