Xylanase and glucanase from Talaromyces versatilis renewed and extended to all poultry: activity determined viscometrically in VU, at least 1 100 VU xylanase and 760 VU glucanase per kg feed
Commission Implementing Regulation (EU) 2026/1016, published on 8 May 2026, renews until 28 May 2036 the authorisation of a preparation of endo-1,4-beta-xylanase and endo-1,3(4)-beta-glucanase produced by Talaromyces versatilis IMI 378536 and DSM 26702 (holder: Adisseo France) and extends it to all poultry categories, repealing Regulations (EU) 2015/661, 2015/2304 and 2017/210.
- Methods: the activity of both enzymes is determined viscometrically — from the drop in viscosity of a wheat arabinoxylan solution (xylanase) or barley beta-glucan solution (glucanase); 1 VU changes relative fluidity by 1 (dimensionless unit) per minute at 30 °C and pH 5.5. The EU reference laboratory considered valid the conclusions of the assessment verified by EFSA on 2 July 2014.
- Minimum activity of the additive: solid form — 22 000 VU/g xylanase and 15 200 VU/g glucanase, liquid form — 5 500 and 3 800 VU/mL. EFSA data (5 batches): powder 76 224–82 760 VU/g xylanase and 39 859–50 866 VU/g glucanase, liquid 14 187–15 822 and 6 161–8 234 VU/mL.
- Impurities (3 batches): in the powder cadmium 0.016–0.017 mg/kg, PCDD/F + PCB 0.113–0.139 ng WHO-TEQ/kg, in the liquid 0.114–0.190; Clostridium perfringens < 1 CFU/g. Viable cells of the strains were tested in the enzyme concentrate: 10 g samples diluted with penicillin G and streptomycin, filtered through a 0.45 µm polyethersulfone membrane and incubated for 5 days at 31 °C on media selective for fungi — none detected; DNA of strain DSM 26702 was not detected either (limit 1 ng/mL).
- Users: according to EFSA the preparation is not irritant to skin or eyes but may be a skin and respiratory sensitiser, and any exposure by inhalation is a risk; the act requires respiratory and skin protection. Efficacy was not assessed for the renewal; for the new poultry categories EFSA extended the conclusions of the original authorisation. Under the old rules: additive and premixtures made before 28 November 2026, feed before 28 May 2027.