Research Publications (Food Safety)

Some root-associated bacteria could degrade polycyclic aromatic hydrocarbons (PAHs) in contaminated soil; however, their dynamic distribution and performance on root surface and in inner plant tissues are still unclear. In this study, greenhouse container experiments were conducted by inoculating the phenanthrene-degrading bacterium Diaphorobacter sp.

New antibacterial drugs with novel modes of action are urgently needed as antibiotic resistance in bacteria is increasing and spreading throughout the world. In this study, we aimed to explore the possibility of using APIM-peptides targeting the bacterial β-clamp for treatment of skin infections. We selected a lead peptide, named betatide, from five APIM-peptide candidates based on their antibacterial and antimutagenic activities in both G+ and G– bacteria.

Author(s): Ravibabu Kalahasthi, Raju Nagaraju, Rakesh Balachandar, Bhavani Shankara Bagepally

Journal of Separation Science, Accepted Article. In the present study, we propose a novel method for the extraction of parabens in personal care products. A new, simple adsorptive material was obtained by combining metal-organic frameworks and melamine sponges using the adhesive property of polyvinylidene fluoride. This new material, metal-organic frameworks /melamine sponges, was found to be particularly suitable for solid phase extraction.

IntroductionThe present study was undertaken to investigate the prognostic value of the frontal QRS-T angle associated with adverse cardiac outcomes in patients with carbon monoxide (CO) poisoning in early stages in the emergency department.Materials and methodsThe data of 212 patients with CO poisoning who were admitted to the ED between January 2010 and May 2020 were retrospectively analyzed.

Author(s): Yang Ma, Peizhen Huang, Jing Cao, Junfeng Zhang, Yan Huang, Biao Chen

Campylobacter is the leading bacterial pathogen that causes human foodborne illnesses worldwide and outbreaks have been associated with consumption of under-cooked chicken livers.  The objectives of this study were to compare two PCR assays for speciation of 250 Campylobacter isolates, to assess antibiotic resistance of the isolates, and to analyze genetic diversity of the quinolone resistance determining regions (QRDR) of the isolates.

This study assessed how the Sonchus asper L.—Zea mays intercropping influenced the plant Cd level, as well as the organic acid (low molecular mass) types and concentrations in root secretions, which was accomplished by conducting pot experiments with soil that was collected from a farmland surrounding a mining area.

Here, we evaluate the potential for trace metal accumulation of nine elements (Al, Cr, Mn, Fe, Ni, Cu, As, Cd, and Pb) in the cestodes Proteocephalus macrophallus parasitizing the tucunaré, Cichla kelberi, in the Jacaré-Guaçú River, southeastern Brazil. For metal quantification in the tissues of hosts and parasites, an inductively coupled plasma–mass spectrometer (ICP-MS) was used.

Among 200 fungal strains isolated from the soil, only one culture filtrate of Aspergillus flavus JCK-4087 showed strong nematicidal activity against Meloidogyne incognita. The nematicidal metabolite isolated from the culture filtrate of JCK-4087 was identified as cyclopiazonic acid (CPA). Because JCK-4087 also produced aflatoxins, six strains of Penicillium commune, which have been reported to be CPA producers, were obtained from the bank and then tested for their CPA productivity.

by Maren E. Veatch-Blohm, Iris Chicas, Kathryn Margolis, Rachael Vanderminden, Marisa Gochie, Khusmanie Lila

Author(s): Wei Cui, Sitong Zhou, YuLin Wang, Xu Shi, Honggui Liu

Author(s): Le Wang, Jialiang Han, Hem Bahadur Katuwal, Pinhua Xia, Xiaohang Xu, Xinbin Feng, Guangle Qiu

A key objective for herbicide research is to develop new compounds with improved bioactivity. Protoporphyrinogen IX oxidase (PPO) is an essential target for herbicide discovery. Here, we report using an in silico structure-guided optimization approach of our previous lead compound 1 and designed and synthesized a new series of compounds 2–6.

Journal of Fish Diseases, EarlyView. White spot syndrome virus (WSSV) is an important pathogen causing high mortality in the shrimp industry in aquaculture, yet there is no treatment available to date. In order to find a treatment against WSSV infection, this study examined the anti-WSSV activity of eight natural compounds using shrimp larvae as a model.

To assess root metabolic differences of maize varieties in their response to lead (Pb) stress, the lead-tolerant variety Huidan No. 4 and the lead-sensitive variety Ludan No. 8 were tested under Pb-free and Pb-stressed conditions. Changes in metabolites were measured using ultra-performance liquid chromatography–mass spectrometry.

Microbial species occupying the same ecological niche or codeveloping during a fermentation process can exchange metabolites and mutualistically influence each other’s metabolic states. For instance, yeast can excrete amino acids, thereby cross-feeding lactic acid bacteria unable to grow without an external amino acid supply. The yeast membrane transporters involved in amino acid excretion remain poorly known.

A series of unreported novel dithioacetal derivatives containing a 4(3H)-quinazolinone pyrimidine ring were synthesized, and their antiviral activities were evaluated against tomato spotted wilt virus (TSWV). A three-dimensional quantitative structure–activity relationship (3D-QSAR) analysis was established, and compound D32 was designed and synthesized according to the analysis results of the CoMFA and CoMSIA models.

This manuscript deals with the bioremediation of aqueous media containing Cd2+ and Pb2+ by using dead biomass of the fungus Phialomyces macrosporus. This filamentous fungus with 19.1 m2 g−1 of surface area showed promising adsorption results, since more than 80 % of Cd2+ and Pb2+ were removed from synthetic aqueous media.

Microorganisms drive litter decomposition while maintaining the chemical cycle of ecosystems. We used the dominant vegetation (Imperata cylindrica) in the mining area selected for this study for this experiment to explore fungal community characteristics, key fungal groups, and their associative driving factors during I. cylindrica litter decomposition.

A simultaneous analysis method using LC-MS/MS and GC-MS/MS was developed for improving the analysis accuracy of various pesticide residues. Samples spiked with 247 and 34 pesticide residues were analyzed by LC-MS/MS and GC-MS/MS, respectively. The method was verified by measuring sensitivity, linearity, selectivity, precision, and accuracy.

Author(s): Reddicherla Umapathi, Bumjun Park, Sonam Sonwal, Gokana Mohana Rani, Youngjin Cho, Yun Suk Huh

Author(s): Junzhao Yuan, Yumeng Zhao, Yuni Bai, Jianhong Gu, Yan Yuan, Xuezhong Liu, Zongping Liu, Hui Zou, Jianchun Bian

Author(s): Sijie Wang, Songdi Wang, Chenxi Wang, Daofu Feng, Xizeng Feng

Author(s): Jingwen Yang, Qing Xie, Yongmin Wang, Juan Wang, Yongjiang Zhang, Cheng Zhang, Dingyong Wang