90-day oral toxicity study in rats of a protein-rich powder derived from Xanthobacter sp. SoF1

IF 2.7 4区 医学 Q3 TOXICOLOGY Journal of Applied Toxicology Pub Date : 2024-08-04 DOI:10.1002/jat.4663
Bean Choi, Róbert Glávits, Timothy S. Murbach, John R. Endres, Gábor Hirka, Ilona Pasics Szakonyiné
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Abstract

Xanthobacter sp. SoF1 (SoF1) is an autotrophic hydrogen-oxidizing bacteria that produces protein-rich biomass and has potential to be an alternative protein source that is more environmentally sustainable than animal and plant derived proteins. A protein-rich powder derived from SoF1 was the test material in a 90-day repeated-dose oral toxicity study to explore major toxic effects, demonstrate target organs, and provide an estimate of a no-observed-adverse-effect level (NOAEL). Daily doses of 0 (vehicle only), 375, 750, and 1500 mg/kg bw/day of the test material were administered by gavage to 10 Han:WIST rats/sex/group. An additional group was administered 1290 mg/kg bw/day whey protein concentrate as positive control. No treatment-related adverse effects were observed, and no target organs were determined after 90/91 days of consecutive administration of the test item. A NOAEL of 1500 mg/kg bw/day was determined.

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从黄杆菌 SoF1 提取的富含蛋白质的粉末对大鼠进行的 90 天口服毒性研究。
黄杆菌SoF1(SoF1)是一种自养型氢氧化细菌,能产生富含蛋白质的生物质,有望成为一种替代蛋白质来源,比动植物提取的蛋白质更具环境可持续性。在一项为期 90 天的重复剂量口服毒性研究中,以从 SoF1 提取的富含蛋白质的粉末为试验材料,探讨其主要毒性效应,展示目标器官,并估算无观测不良效应水平(NOAEL)。对 10 只 Han:WIST 大鼠/性别/组,每天分别灌胃 0(仅含载体)、375、750 和 1500 毫克/千克体重的试验物质。另外给一组大鼠灌胃 1290 毫克/千克体重/天的浓缩乳清蛋白作为阳性对照。连续给药 90/91 天后,未观察到与治疗有关的不良反应,也未检测到目标器官。确定无观测不良效应水平为 1500 毫克/千克体重/天。
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来源期刊
CiteScore
7.00
自引率
6.10%
发文量
145
审稿时长
1 months
期刊介绍: Journal of Applied Toxicology publishes peer-reviewed original reviews and hypothesis-driven research articles on mechanistic, fundamental and applied research relating to the toxicity of drugs and chemicals at the molecular, cellular, tissue, target organ and whole body level in vivo (by all relevant routes of exposure) and in vitro / ex vivo. All aspects of toxicology are covered (including but not limited to nanotoxicology, genomics and proteomics, teratogenesis, carcinogenesis, mutagenesis, reproductive and endocrine toxicology, toxicopathology, target organ toxicity, systems toxicity (eg immunotoxicity), neurobehavioral toxicology, mechanistic studies, biochemical and molecular toxicology, novel biomarkers, pharmacokinetics/PBPK, risk assessment and environmental health studies) and emphasis is given to papers of clear application to human health, and/or advance mechanistic understanding and/or provide significant contributions and impact to their field.
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