The food enzyme endo-1,4-β-xylanase (EC 3.2.1.8) is produced with the genetically modified strain LMG S-24584 by Puratos N. V. The genetic modifications do not give rise to safety concerns. The Panel noted that, although the production strain was not detected in the food enzyme, recombinant DNA was present in all batches of the food enzyme tested. The food enzyme is intended to be used in baking processes. Based on the maximum use levels recommended for the baking processes and individual consumption data from the EFSA Comprehensive European Food Consumption Database, dietary exposure to the food enzyme-Total Organic Solids (TOS) was estimated to be up to 0.017 mg TOS/kg body weight (bw) per day in European populations. Genotoxicity tests did not raise a safety concern. The systemic toxicity was assessed by means of a repeated dose 90-day oral toxicity study in rodents. A comparison of the no observed adverse effect level of 37 mg TOS/kg bw per day from this study with the dietary exposure results in a sufficiently high margin of exposure. The amino acid sequence of the food enzyme did not match those of known allergens. The Panel considered that, under the intended condition of use, the risk of allergic sensitisation and elicitation reactions upon dietary exposure to this food enzyme cannot be excluded, but the likelihood of such reactions occurring is considered to be low. Based on the data provided, the Panel concluded that this food enzyme does not give rise to safety concerns under the intended conditions of use.
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http://dx.doi.org/10.2903/j.efsa.2018.5447 | DOI Listing |
Vet Med Sci
January 2025
Department of Industrial Management, Faculty of Humanities, University of Tehran, Kish International Campus, Tehran, Iran.
Background: The poultry industry faces challenges with the high cost and environmental impact of Soybean meal. Feather meal, a byproduct with low digestibility due to its keratin content, is a potential alternative. Recent biotechnological advances, including enzymatic and bacterial hydrolysis, have enhanced its digestibility and nutritional value.
View Article and Find Full Text PDFJ Agric Food Chem
January 2025
College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China.
In this study, we present an intelligent electromagnetic-actuated microfluidic chip integrated with a G-quadruplex DNAzyme-based biocatalysis platform for rapid and sensitive tetracycline (TC) detection. In this sensing system, TC significantly quenches fluorescent magnetic carbon dots (M-CDs) via the internal filtration effect and dynamic quenching (the excitation and emission wavelength at 350 and 440 nm, respectively). Then, the G-quadruplex on the M-CDs-Aptamer is exposed and bound with hemin to form hemin-G-quadruplex DNAzyme, catalyzing the conversion of 3,3',5,5'-tetramethylbenzidine to produce blue color.
View Article and Find Full Text PDFJ Agric Food Chem
January 2025
Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China.
This study has developed a pressure sensor array based on four functionalized DNA-nanoenzymes with catalase-like activity for multiple detections of foodborne pathogens through a portable pressure manometer. Benefiting from functionalization of 4-mercaptophenylboronic acid and β-mercaptoethylamine, the diversity of nonspecific interactions between four DNA-nanoenzymes and each of the nine bacteria leads to differences in pressure response patterns by catalyzing HO to generate exclusive "fingerprints". As effective statistical tools for processing multivariate data, principal component analysis and hierarchical clustering analysis are employed to identify nine foodborne pathogens by analyzing pressure response patterns.
View Article and Find Full Text PDFJ Agric Food Chem
January 2025
State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, PR China.
4-Hydroxyphenylpyruvate dioxygenase (HPPD) is a crucial herbicide target in current research, playing an important role in the comprehensive management of resistant weeds. However, the limited crop selectivity and less effectiveness against grass weeds of many existing HPPD inhibitors, limit their further application. To address these issues, a series of novel HPPD inhibitors with fused ring structures were designed and synthesized by introducing an electron-rich indazolone ring and combining it with the classical triketone pharmacophore structure.
View Article and Find Full Text PDFBiotechnol Notes
December 2024
Centre for Molecular Biology, Central University of Jammu, Rahya Suchani (Bagla), Jammu & Kashmir, India.
The amidases (EC 3.5.1.
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