Development of a highly sensitive aptamer-based electrochemical sensor for detecting saxitoxin based on K < sub > 3 < /sub > Fe(CN) < sub > 6 < /sub > regulated silver nanoparticles
In this study, we developed a novel aptamer-based electrochemical sensor (AECs) for the sensitive detection of STX based on a K3Fe(CN)6 regulated silver nanoparticles (Ag NPs) modified with aptamer. The AECs was constructed by immobilizing aptamer on Ag NPs surfaces. Under optimized conditions, the AECs showed a linear response towards STX in the range from 0.04 to 0.15 μM with the regression equation of Y = -8.0 + 233.7 X (R2 = 0.9956). The limit of detection (LOD) was calculated to be 1 nM (based on 3 N/S), which is significantly lower than the regulatory limits for STX in seafood. Moreover, the AECs showed excellent se...
Source: Analytica Chimica Acta - January 5, 2024 Category: Chemistry Authors: Wei Zeng Xuemei Tang Ting Wu Bingjun Han Long Wu Source Type: research
Development of a highly sensitive aptamer-based electrochemical sensor for detecting saxitoxin based on K < sub > 3 < /sub > Fe(CN) < sub > 6 < /sub > regulated silver nanoparticles
In this study, we developed a novel aptamer-based electrochemical sensor (AECs) for the sensitive detection of STX based on a K3Fe(CN)6 regulated silver nanoparticles (Ag NPs) modified with aptamer. The AECs was constructed by immobilizing aptamer on Ag NPs surfaces. Under optimized conditions, the AECs showed a linear response towards STX in the range from 0.04 to 0.15 μM with the regression equation of Y = -8.0 + 233.7 X (R2 = 0.9956). The limit of detection (LOD) was calculated to be 1 nM (based on 3 N/S), which is significantly lower than the regulatory limits for STX in seafood. Moreover, the AECs showed excellent se...
Source: Analytica Chimica Acta - January 5, 2024 Category: Chemistry Authors: Wei Zeng Xuemei Tang Ting Wu Bingjun Han Long Wu Source Type: research
The highly selective rhodol-based putrescine probe and visual sensors for on-site detection of putrescine in food spoilage
Talanta. 2023 Dec 28;270:125615. doi: 10.1016/j.talanta.2023.125615. Online ahead of print.ABSTRACTPutrescine (Butane-1,4-diamine) has been regarded as a vital marker of spoiling protein-rich foods, especially meat and seafood. The detection of putrescine in food is considered a convenient and powerful method for evaluating the degree of spoilage of protein-rich foods. Herein, a novel rhodol-based fluorescent probe RSMA (formyl-rhodol Schiff base with methoxyaniline) was developed to detect putrescine. RSMA exhibited excellent linearity (R2 = 0.9912) in the concentration range of 0-45 μM of putrescine with a detection lim...
Source: Talanta - January 3, 2024 Category: Chemistry Authors: Yong Gao Chunli Zhong Jianwen Qiu Lan Zhao Xinyi Xiong Source Type: research
The Role of Supersulfide in Methylmercury Detoxification
Yakugaku Zasshi. 2024;144(1):41-45. doi: 10.1248/yakushi.23-00162-1.ABSTRACTMethylmercury is a ubiquitous neurotoxic substance present in the environment, and health concerns, especially through the consumption of seafood, remain. Glutathione (GSH)-mediated detoxification and the excretion of methylmercury are known metabolic detoxification pathways. We have also discovered a mechanism by which endogenous super-sulfides convert methylmercury to nontoxic metabolites such as bis-methylmercury sulfide. However, these metabolites are present in very small quantities, and the significance of the detoxification of methylmercury ...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - January 3, 2024 Category: Drugs & Pharmacology Authors: Takashi Toyama Runa Kudo Yoshiro Saito Source Type: research
The highly selective rhodol-based putrescine probe and visual sensors for on-site detection of putrescine in food spoilage
Talanta. 2023 Dec 28;270:125615. doi: 10.1016/j.talanta.2023.125615. Online ahead of print.ABSTRACTPutrescine (Butane-1,4-diamine) has been regarded as a vital marker of spoiling protein-rich foods, especially meat and seafood. The detection of putrescine in food is considered a convenient and powerful method for evaluating the degree of spoilage of protein-rich foods. Herein, a novel rhodol-based fluorescent probe RSMA (formyl-rhodol Schiff base with methoxyaniline) was developed to detect putrescine. RSMA exhibited excellent linearity (R2 = 0.9912) in the concentration range of 0-45 μM of putrescine with a detection lim...
Source: Talanta - January 3, 2024 Category: Chemistry Authors: Yong Gao Chunli Zhong Jianwen Qiu Lan Zhao Xinyi Xiong Source Type: research
The Role of Supersulfide in Methylmercury Detoxification
Yakugaku Zasshi. 2024;144(1):41-45. doi: 10.1248/yakushi.23-00162-1.ABSTRACTMethylmercury is a ubiquitous neurotoxic substance present in the environment, and health concerns, especially through the consumption of seafood, remain. Glutathione (GSH)-mediated detoxification and the excretion of methylmercury are known metabolic detoxification pathways. We have also discovered a mechanism by which endogenous super-sulfides convert methylmercury to nontoxic metabolites such as bis-methylmercury sulfide. However, these metabolites are present in very small quantities, and the significance of the detoxification of methylmercury ...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - January 3, 2024 Category: Drugs & Pharmacology Authors: Takashi Toyama Runa Kudo Yoshiro Saito Source Type: research
The Role of Supersulfide in Methylmercury Detoxification
Yakugaku Zasshi. 2024;144(1):41-45. doi: 10.1248/yakushi.23-00162-1.ABSTRACTMethylmercury is a ubiquitous neurotoxic substance present in the environment, and health concerns, especially through the consumption of seafood, remain. Glutathione (GSH)-mediated detoxification and the excretion of methylmercury are known metabolic detoxification pathways. We have also discovered a mechanism by which endogenous super-sulfides convert methylmercury to nontoxic metabolites such as bis-methylmercury sulfide. However, these metabolites are present in very small quantities, and the significance of the detoxification of methylmercury ...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - January 3, 2024 Category: Drugs & Pharmacology Authors: Takashi Toyama Runa Kudo Yoshiro Saito Source Type: research
The Role of Supersulfide in Methylmercury Detoxification
Yakugaku Zasshi. 2024;144(1):41-45. doi: 10.1248/yakushi.23-00162-1.ABSTRACTMethylmercury is a ubiquitous neurotoxic substance present in the environment, and health concerns, especially through the consumption of seafood, remain. Glutathione (GSH)-mediated detoxification and the excretion of methylmercury are known metabolic detoxification pathways. We have also discovered a mechanism by which endogenous super-sulfides convert methylmercury to nontoxic metabolites such as bis-methylmercury sulfide. However, these metabolites are present in very small quantities, and the significance of the detoxification of methylmercury ...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - January 3, 2024 Category: Drugs & Pharmacology Authors: Takashi Toyama Runa Kudo Yoshiro Saito Source Type: research
The Role of Supersulfide in Methylmercury Detoxification
Yakugaku Zasshi. 2024;144(1):41-45. doi: 10.1248/yakushi.23-00162-1.ABSTRACTMethylmercury is a ubiquitous neurotoxic substance present in the environment, and health concerns, especially through the consumption of seafood, remain. Glutathione (GSH)-mediated detoxification and the excretion of methylmercury are known metabolic detoxification pathways. We have also discovered a mechanism by which endogenous super-sulfides convert methylmercury to nontoxic metabolites such as bis-methylmercury sulfide. However, these metabolites are present in very small quantities, and the significance of the detoxification of methylmercury ...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - January 3, 2024 Category: Drugs & Pharmacology Authors: Takashi Toyama Runa Kudo Yoshiro Saito Source Type: research
Tracking antimicrobial resistance indicator genes in wild flatfish from the English Channel and the North Sea area: A one health concern
In conclusion, sul1 and intI1 genes emerge as robust indicators of AMR contamination in the marine environment, evident in seawater and species representing a benthic food web. Further studies are imperative to delineate marine species' role in accumulating and transmitting AMR to humans via seafood consumption. This research sheds light on the urgent need for a concerted effort in comprehending and mitigating AMR risks in marine ecosystems within the context of One Health.PMID:38160773 | DOI:10.1016/j.envpol.2023.123274 (Source: Environmental Pollution)
Source: Environmental Pollution - December 31, 2023 Category: Environmental Health Authors: Erwan Bourdonnais C édric Le Bris Thomas Brauge Graziella Midelet Source Type: research
Exposure of U.S. adults to microplastics from commonly-consumed proteins
Environ Pollut. 2023 Dec 28:123233. doi: 10.1016/j.envpol.2023.123233. Online ahead of print.ABSTRACTWe investigated microplastic (MP) contamination in 16 commonly-consumed protein products (seafoods, terrestrial meats, and plant-based proteins) purchased in the United States (U.S.) with different levels of processing (unprocessed, minimally-processed, and highly-processed), brands (1-4 per product type, depending on availability) and store types (conventional supermarket and grocer featuring mostly natural/organic products). Mean (±stdev) MP contamination per serving among the products was 74 ± 220 particles (ranging fr...
Source: Environmental Pollution - December 30, 2023 Category: Environmental Health Authors: Madeleine H Milne Hannah De Frond Chelsea M Rochman Nicholas J Mallos George H Leonard Britta R Baechler Source Type: research
Early exposure to mercury and cardiovascular function of seven-year old children in Guadeloupe (French West Indies)
CONCLUSION: Our study suggests sex-specific and non-monotonic modifications in some cardiac health parameters following prenatal exposure to mercury, in pre-pubertal children from an insular fish-consuming population.PMID:38159660 | DOI:10.1016/j.envres.2023.117955 (Source: Environmental Research)
Source: Environmental Research - December 30, 2023 Category: Environmental Health Authors: Nathalie Costet Matthieu Doyen Florence Rouget Leah Michineau Christine Monfort Ciprian-Mihai Cirtiu Philippe Kadhel Luc Multigner Patrick Pladys Sylvaine Cordier Source Type: research
Molecules, Vol. 29, Pages 182: Utilization of Yeast Extract as a Flavor Enhancer and Masking Agent in Sodium-Reduced Marinated Shrimp
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Deepwater pink shrimp (Parapenaus longirostris) has a significantly high catch yield and is a highly important food source for human nutrition in terms of its nutritional value. The reduction of salt content in seafood products while preserving taste poses a significant challenge. The aim of this study is to reduce the NaCl ratio used in the shrimp marination process by substituting it with KCl and masking the resulting bitterness from KCl using natural flavor enhancers, such as yeast extracts. The marinated shrimp were prepared using 50% KCl instead of 50% NaCl. In order to mask the bitter taste caused by KCl and en...
Source: Molecules - December 28, 2023 Category: Chemistry Authors: Evren Burcu Şen Yılmaz Tags: Article Source Type: research
Effect of processing techniques on biochemical, mineral, heavy metal and microbial load in edible seaweeds and seawater parameters of western Bay of Bengal
This study ascertains the fact of using boiled and soakedG. corticata andU. lactuca (in all forms except unwashed) for the development of new healthy seaweed-based foods in changing climate scenarios. (Source: Environmental Quality Management)
Source: Environmental Quality Management - December 27, 2023 Category: Environmental Health Authors: Archana Snehasini Turuk,
Kakoli Banerjee Tags: RESEARCH ARTICLE Source Type: research
Occurrence and risk assessment of okadaic acid, dinophysistoxin-1, dinophysistoxin-2, and dinophysistoxin-3 in seafood from South Korea
Environ Sci Pollut Res Int. 2023 Dec 26. doi: 10.1007/s11356-023-31568-4. Online ahead of print.ABSTRACTThe okadaic acid (OA)-group toxins, including OA, dinophysistoxin-1 (DTX1), dinophysistoxin-2 (DTX2), and dinophysistoxin-3 (DTX3), cause diarrheic shellfish poisoning in humans. To manage OA-group toxins more strictly, Korean regulations were recently revised to consider OA, DTX1, DTX2, and DTX3 combined. Thus, our study characterized the occurrence of OA, DTX1, DTX2, and DTX3 in seafood distributed across South Korea, and a risk assessment of seafood consumption was conducted. Two hundred and seventeen samples from 16 ...
Source: Environmental Science and Pollution Research International - December 26, 2023 Category: Environmental Health Authors: Jong Bin Park Solyi Cho Sang Yoo Lee Su Mi Park Hyang Sook Chun Source Type: research
