Mycotoxin detoxification in feed with specific enzymes and microbes — fumonisin esterase (FumD), trichothecene-degrading bacterium BBSH 797, zearalenone hydrolase

Replaces: ineffective binders and chemical detoxification; reduces drug use caused by mycotoxin immunosuppression · Species: pigs, poultry, cattle · Evidence: high

The chemical problem#

Global feed surveys find mycotoxins in the majority of feed and grain samples: deoxynivalenol (DON), fumonisins (FUM), zearalenone (ZEN) and aflatoxins. Wet harvests in Russia and Eastern Europe often give high DON and ZEN. Effects include feed refusal, immunosuppression (vaccine failures, secondary infections treated with antibiotics), reproductive disorders in sows (ZEN), and liver damage. Clay binders (bentonites) bind aflatoxins well but do not bind DON, fumonisins or ZEN effectively. Chemical detoxification (ammoniation, formaldehyde) is hazardous and not authorized for most uses.

Product overview#

Biotransformation: specific enzymes or bacteria convert mycotoxins into non-toxic metabolites in the animal’s gut. These are the first mycotoxin-deactivating feed additives officially authorized in the EU after efficacy dossiers:

1. BBSH 797 (Coriobacteriaceae bacterium, formerly Eubacterium sp.), a bacterium from the bovine rumen: cleaves the epoxide ring of trichothecenes (DON, T-2 toxin) and turns them into de-epoxy metabolites (DOM-1) with very low toxicity. EU authorization for pigs (Reg. (EU) No 1016/2013); check the current register for extensions to other species.
2. Fumonisin esterase FumD (produced in Komagataella phaffii/Pichia pastoris): hydrolyzes fumonisin B1 to non-toxic hydrolysed FB1. EU authorization for pigs (Reg. (EU) No 1115/2014); later extended to further species (check the current register).
3. Zearalenone hydrolase (ZenA): cleaves ZEN into non-oestrogenic metabolites; authorized as a feed additive in the EU (check species scope in the current register).
4. Aflatoxins: good-quality bentonite (a natural clay) remains effective, and is authorized in the EU for aflatoxin B1.

Prevention first: field and storage prevention (see crop articles: rotation, residue management A15, variety choice, drying grain below 14 %, cooling storage A31).

Active ingredient / Composition#

• BBSH 797 (viable bacteria, lyophilized).
• FumD (enzyme, units per kg feed per authorization).
• ZenA (enzyme).
• Bentonite (dioctahedral montmorillonite) for aflatoxins.

Key facts#

Advantages#

• Targeted, proven detoxification where clay binders fail.
• Healthier immunity means fewer secondary infections and less antibiotic use.
• Improves the value of lower-quality grain (after wet harvests) instead of destroying it or diluting it with clean grain, a circular use of feed resources.

Mode of action#

• BBSH 797: de-epoxidation of the 12,13-epoxy group of trichothecenes (the epoxide is key for toxicity).
• FumD: carboxylesterase removes the two tricarballylic acid side chains of FB1.
• ZenA: lactonase opens the ZEN lactone ring, so it loses oestrogenic activity.

Application#

Limitations#

• Not all mycotoxins have biotransformation products (e.g. ochratoxin A, ergot alkaloids are only partly covered).
• Does not fix very high contamination; such grain should not be fed.
• Authorization outside the EU varies (check RU feed-additive registration).

Evidence of displacement — D1: works, adoption not proven#

Verified figures (the number is in the quoted sentence and the sentence is on the source page):

• performance — The bacterial strain BBSH 797 is used as a feed additive to reduce the harmful effects of deoxynivalenol. (EU, 2016-2017; peer-reviewed: pmc.ncbi.nlm.nih.gov)
• performance — Current global adoption rates for novel mycotoxin degrading enzymes in livestock production average 32-38%. (global, 2025; weak: marketintelo.com)
• performance — Enzyme market penetration reaches 55-65% in regulated markets like Europe and North America. (Europe and North America, 2025; weak: marketintelo.com)

Suppliers — real products and services (from the vendor index)#

Honest finding: the vendor index has no supplier that states enzymatic/microbial mycotoxin degradation; entries sell mycotoxin management products (type not stated). This is recorded as a supplier gap — the companies below are the closest capabilities.

Companies below are active vendors in the vendor index whose own card (profile / official website) shows this product or service — matched 2026-09-28 by keyword and checked by hand against the card text. Being listed is not an endorsement; open each card for evidence, contacts and status.

Government funding signals#

Public grants for a specific technology are a leading indicator: governments fund what regulators want to replace and what is close to practical adoption. Searched on 2026-09-27 in: EU CORDIS (FP7, Horizon 2020, Horizon Europe), US federal awards (USAspending: USDA NIFA/ARS/APHIS/Forest Service, EPA, DOE, NOAA, USAID; plus NSF and NIH), UK UKRI Gateway to Research, Australian Research Council. Each grant below was reviewed by hand for relevance. China, Brazil and India are covered in the subsection below (publication-acknowledged grants). Not covered: Russia (RSF, FASIE — not reachable from the research environment) and national agencies outside these databases. Amounts are the funder’s contribution as recorded (US NIH/UKRI: per award or fiscal year).

Signal: Moderate. 2 relevant grant(s) · about €10.0M in total · jurisdictions: EU.

China, Brazil, India — national research grants acknowledged in publications#

Chinese, Brazilian and Indian funders have no open grant databases reachable here, so this measures scientific papers published since 2015 that acknowledge national government grants, taken from the grant numbers publishers deposit with Crossref. Only papers whose title contains this article’s key terms are counted (a conservative lower bound; “100+” = search window full). It shows research-funding intensity, not budgets. Funders: China — NSFC, National Key R&D Program, China Agriculture Research System; Brazil — CNPq, CAPES, FAPESP, Embrapa, FAPEMIG; India — DBT, DST, ICAR, SERB, CSIR, BIRAC. Rating per country: Strong ≥50 papers · Moderate 10–49 · Weak 1–9.

Scientific evidence#

• Schatzmayr G, Streit E (2013). Global occurrence of mycotoxins in the food and feed chain: facts and figures. World Mycotoxin Journal 6: 213–222.
• Fuchs E, Binder EM, Heidler D, Krska R (2002). Structural characterization of metabolites after the microbial degradation of type A trichothecenes by the bacterial strain BBSH 797. Food Additives & Contaminants 19: 379–386.
• Masching S, Naehrer K, Schwartz-Zimmermann HE, et al. (2016). Gastrointestinal degradation of fumonisin B1 by carboxylesterase FumD prevents fumonisin induced alteration of sphingolipid metabolism in turkey and swine. Toxins 8: 84.
• Kolosova A, Stroka J (2011). Substances for reduction of the contamination of feed by mycotoxins: a review. World Mycotoxin Journal 4: 225–256.
• Commission Implementing Regulations (EU) No 1016/2013 (BBSH 797) and No 1115/2014 (fumonisin esterase).

Bioeconomy value#

Enzymes and bacteria from fermentation (industrial biotechnology) turn contaminated grain back into safe feed. This saves grain resources and reduces antibiotic use downstream.