Aldehydes’ Sources, Toxicity, Environmental Analysis, and Control in Food

El-Maghrabey, Mahmoud; El-Shaheny, Rania; Hamd, Mohamed A. El; Al-Khateeb, Lateefa A.; Kishikawa, Naoya; Kuroda, Naotaka

doi:10.1007/978-3-030-72441-2_5

Cited by 11 publications

(3 citation statements)

References 152 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, El-Maghrabey et al. [ 27 ] have suggested that chlorination, ozonation, and UV exposure of drinking water for sterilization purposes could lead to the abundant formation of aldehydes. In conclusion, these findings implied that long-term UV-A treatment has the potential to induce the generation of toxic VOCs from the 1# container.…”

Section: Resultsmentioning

confidence: 99%

Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers

Liu,

Liao,

Zheng

et al. 2024

Eco-Environment & Health

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers

Liu,

Liao,

Zheng

et al. 2024

Eco-Environment & Health

View full text Add to dashboard Cite

“…The determination of aldehyde content is an important parameter because an increased aldehyde content on storage may result in the interaction with electron-rich biological macromolecules and induce adverse health effects like toxicity, allergic reactions, mutagenicity, and carcinogenicity. [36,37] The aldehyde content of ADA 4°C and ADA À 20°C was estimated by hydroxylamine hydrochloride titration at 1 M, 3 M and 6 M. The aldehyde content of ADA at the time of storage was 40.1 � 1.4 %. There was no statistical significance in the aldehyde content of ADA 4°C and ADA À 20°C solutions within the respective time periods irrespective of storage temperature (P > 0.05) (Figure 1B).…”

Section: Aldehyde Contentmentioning

confidence: 99%

Implications of Storage Conditions on the Characteristics of Alginate Dialdehyde and Its Hydrogels

Resmi,

Parvathy,

Anjali

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

A review of recent literature reveals a spurt in the publications using alginate dialdehyde (ADA)‐based hydrogels. This study evaluates the stability and characteristics of ADA solutions stored at different temperatures (4 & −20 °C; designated as ADA4°C & ADA−20°C) and durations (1, 3, and 6 months), and gives valuable insights into the shelf life, a parameter important in a clinical setting. ADA solutions were characterized for their viscosity, aldehyde content, molecular weight, and chemical structure before and after storage. The solution viscosities of ADA4°C showed a decreasing trend over 6 months while that of ADA‐20°C showed an increase. Compared to freshly prepared ADA, a significant reduction in aldehyde content, from 40.1±1.4 % to 37.1±1.01 %, was observed for ADA4°C stored for 6 months, but the aldehyde content was stable for ADA−20°C stored for the same period. Molecular weight remained stable (~6800 g/mol) irrespective of the storage temperatures. Injectable hydrogels were prepared by reacting the stored ADA solutions with 20 % aqueous solutions of gelatin. Hydrogels prepared with ADA stored at 4 °C for 6 months showed a significant increase in gelation time from 4.3±1.5 to 8.79±0.1 min and a decrease in degree of crosslinking from 54.3±1.4 % to 29.2±2.3 %. A decreasing trend was observed for properties such as water uptake (from 470 to 961 %) and tensile strength (from 348 to 282 kPa). Hydrogels made with ADA−20°C demonstrated better retention of physicochemical properties over time. In vitro studies revealed that the hydrogels showed a non‐cytotoxic response towards L929 cells irrespective of the storage conditions. LIVE/DEAD assay and F‐Actin staining revealed good cell proliferation on the hydrogels. In conclusion, retention of the properties of ADA in its aqueous solution requires careful control of storage temperatures.

show abstract

“…For instance, certain aldehydes, ketones, and amines can cause serious irritation to human respiratory mucosa, eyes, and skin; long-term exposure to these VOCs can cause cancer and deformities, and even endanger lives [21][22][23][24]. To be specific, formaldehyde is an important allergen in ambient air, which can aggravate breathing difficulties and induce bronchial hypersensitivity, regardless of whether there is a long-term smoking habit [25]. Health effects of acetaldehyde include irritation of the skin, eyes, and mucous membranes, causing vomiting, headache, and cancer risk [26,27].…”

Section: Introductionmentioning

confidence: 99%

Chemical Characteristics and Source-Specific Health Risks of the Volatile Organic Compounds in Urban Nanjing, China

Wang

Hao

Cui

et al. 2022

Toxics

View full text Add to dashboard Cite

This work comprehensively investigated the constituents, sources, and associated health risks of ambient volatile organic compounds (VOCs) sampled during the autumn of 2020 in urban Nanjing, a megacity in the densely populated Yangtze River Delta region in China. The total VOC (TVOC, sum of 108 species) concentration was determined to be 29.04 ± 14.89 ppb, and it was consisted of alkanes (36.9%), oxygenated VOCs (19.9%), halogens (19.1%), aromatics (9.9%), alkenes (8.9%), alkynes (4.9%), and others (0.4%). The mean TVOC/NOx (ppbC/ppbv) ratio was only 3.32, indicating the ozone control is overall VOC-limited. In terms of the ozone formation potential (OFP), however, the largest contributor became aromatics (41.9%), followed by alkenes (27.6%), and alkanes (16.9%); aromatics were also the dominant species in secondary organic aerosol (SOA) formation, indicative of the critical importance of aromatics reduction to the coordinated control of ozone and fine particulate matter (PM2.5). Mass ratios of ethylbenzene/xylene (E/X), isopentane/n-−pentane (I/N), and toluene/benzene (T/B) ratios all pointed to the significant influence of traffic on VOCs. Positive matrix factorization (PMF) revealed five sources showing that traffic was the largest contributor (29.2%), particularly in the morning. A biogenic source, however, became the most important source in the afternoon (31.3%). The calculated noncarcinogenic risk (NCR) and lifetime carcinogenic risk (LCR) of the VOCs were low, but four species, acrolein, benzene, 1,2-dichloroethane, and 1,2-dibromoethane, were found to possess risks exceeding the thresholds. Furthermore, we conducted a multilinear regression to apportion the health risks to the PMF-resolved sources. Results show that the biogenic source instead of traffic became the most prominent contributor to the TVOC NCR and its contribution in the afternoon even outpaced the sum of all other sources. In summary, our analysis reveals the priority of controls of aromatics and traffic/industrial emissions to the efficient coreduction of O3 and PM2.5; our analysis also underscores that biogenic emissions should be paid special attention if considering the direct health risks of VOCs.

show abstract

Aldehydes’ Sources, Toxicity, Environmental Analysis, and Control in Food

Cited by 11 publications

References 152 publications

Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers

Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers

Implications of Storage Conditions on the Characteristics of Alginate Dialdehyde and Its Hydrogels

Chemical Characteristics and Source-Specific Health Risks of the Volatile Organic Compounds in Urban Nanjing, China

Contact Info

Product

Resources

About