Article
Food Science & Technology
Yue Zhang, Yu-Hui Zhang, Han Yan, Chen-Yang Shao, Wei-Xuan Li, Hai-Peng Lv, Zhi Lin, Yin Zhu
Summary: Chiral volatiles in Wuyi rock tea were studied, and specific chemical markers as well as key aroma compounds were identified in different tea cultivars. These findings provide scientific references for tea cultivar discrimination and improvement of aroma quality in Wuyi rock tea.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Kun Liang, Cheryl Leong, Jia Min Loh, Nathania Chan, Larissa Lim, Yuen In Lam, Thomas L. Dawson, Hong Liang Tey
Summary: This study presents a new tool for skin microbiome sampling, which can capture microbes from both the surface and deeper layers of the skin. It demonstrates higher sensitivity and species diversity compared to conventional methods.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Endocrinology & Metabolism
Kieran Tarazona Carrillo, Seo Lin Nam, A. Paulina de la Mata, Olle M. M. de Bruin, Evgueni Doukhanine, James Harynuk
Summary: This study compared different homogenization conditions for fecal samples and found that a combination of mechanical and chemical lysis using organic solvent and different sizes of beads can effectively homogenize fecal samples with good reproducibility and metabolic coverage. Lyophilization is necessary when bead-beating is not available.
Review
Biology
Julien Martinez, Alicia Showering, Catherine Oke, Robert T. Jones, James G. Logan
Summary: Mosquito-borne diseases pose a major threat to global health, and eradicating them through vector control methods remains challenging. The speed at which mosquitoes bite humans is a key factor in disease transmission, while biological factors such as body odor, genetics, and parasite infection influence mosquitoes' attractiveness to humans. Addressing these issues will help improve current tools and drive the development of future interventions.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Valerie Desauziers, Elodie Sicre, Jane Vignau-Laulhere, Sylvain Bourrigaud, Herve Plaisance
Summary: The study evaluated the feasibility of using vine leaves as pheromone dispensers and whether encapsulating the pheromone protects the plant from penetration. Experimental results showed that vine leaves behaved as non-absorbent material, indicating that the pheromone used in the Lobesia Pro Spray formulation did not penetrate the plant.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biochemical Research Methods
Madelien Wooding, Tyren Dodgen, Egmont R. Rohwer, Yvette Naude
Summary: Human skin surface chemical cues are a complex mixture that mosquitoes use to locate and select their human host, based on inter- and intra-human variation in chemical profiles. Advanced analytical techniques were employed to identify potential biomarkers that could be used in future mosquito control programmes. The study compared skin surface chemical profiles to investigate perceived mosquito attractiveness and preference for biting certain regions on the human host, revealing a range of chemical compounds and identifying unique markers associated with attractiveness and different skin regions.
JOURNAL OF MASS SPECTROMETRY
(2021)
Article
Biochemical Research Methods
Portia C. K. Makhubela, Egmont R. Rohwer, Yvette Naude
Summary: This study investigated the potential of human skin volatile organic compounds (VOCs) as biomarkers for tuberculosis (TB) diagnosis. The results identified 27 TB-associated compounds and discovered 16 previously unreported potential biomarkers. The statistical analysis showed that these compounds have high accuracy in differentiating between TB-positive and TB-negative individuals.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2023)
Article
Environmental Sciences
Hesham Amin, Ian P. G. Marshall, Randi J. Bertelsen, Inge M. Wouters, Vivi Schlunssen, Torben Sigsgaard, Tina Santl-Temkiv
Summary: By improving the efficiency of DNA extraction, we have successfully increased the DNA yield of bacterial components collected by the passive sampling device EDC, enabling further research on airborne bacterial and fungal communities. We have also developed a method for simultaneous extraction of DNA and endotoxin, which can be used in large-scale epidemiological studies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Ecology
Dani Lucas-Barbosa, Carlijn Balvers, Anthony J. J. Bellantuono, John S. S. Castillo, Andre L. Costa-da-Silva, Consuelo M. M. De Moraes, Matthew DeGennaro, Niels O. O. Verhulst
Summary: Human skin bacteria are crucial for mosquito attraction through the production of volatiles. Increasing microbial biodiversity can reduce human attractiveness to female Aedes aegypti mosquitoes, while co-culturing bacterial commensals affects overall attraction. Complex bacterial models emit lower levels of volatiles and are less attractive to mosquitoes compared to simple models. The relative growth of bacteria species, influenced by competition or commensalism, can impact mosquito responses.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Environmental Sciences
Primoz Auersperger, Anja Korosa, Nina Mali, Brigita Jamnik
Summary: The article presents an analytical method for qualitative monitoring of organic pollutants in water using a simple and cost-effective passive sampling device, and its applicability is tested in three hydrogeological studies.
Article
Environmental Sciences
Dylan D. Miller, Aakriti Bajracharya, Gabrielle N. Dickinson, Timbre A. Durbin, John K. P. McGarry, Elijah P. Moser, Laurel A. Nunez, Elias J. Pukkila, Phillip S. Scott, Parke J. Sutton, Nancy A. C. Johnston
Summary: Passive sampling using sorbents is a cost-effective method for measuring pollutants in air, such as VOCs. This study measured UTRs of 27 VOCs using a simultaneous active/diffusive sampling technique, finding a linear relationship between UTR and time for many compounds, providing important information for assessing human exposure risks to air toxics.
Article
Multidisciplinary Sciences
Skaidre Jankovskaja, Johan Engblom, Melinda Rezeli, Gyorgy Marko-Varga, Tautgirdas Ruzgas, Sebastian Bjorklund
Summary: The tryptophan to kynurenine ratio has been proposed as a cancer biomarker and can be sampled non-invasively on the skin. Studies have shown that the permeability of Trp and Kyn is feasible, with factors like pH variations and sampling time affecting the results. The experimental results are supported by a four-permeation pathways model, suggesting different permeation pathways for the molecules.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Jamie Afghani, Claudia Huelpuesch, Philippe Schmitt-Kopplin, Claudia Traidl-Hoffmann, Matthias Reiger, Constanze Mueller
Summary: Skin metabolomics plays a critical role in understanding physical and mental health, with the skin metabolome sampling technique of WET PREP offering a promising and non-invasive approach. Compared to swab collection, WET PREP provides a more stable shared metabolome across individuals and captures unique individual metabolites with high consistency in intra-individual reproducibility. The quick preparation time, low cost, and gentleness for the patient make WET PREP a preferred skin metabolome sampling technique for clinical studies.
Article
Dermatology
Atiya Rungjang, Jitlada Meephansan, Sunchai Payungporn, Vorthon Sawaswong, Prangwalai Chanchaem, Purit Pureesrisak, Jongkonnee Wongpiyabovorn, Hok Bing Thio
Summary: This study investigates the differences in microbiome profiles of patients with psoriasis using two different sampling techniques: tape stripping and skin biopsy. The results show that these techniques resulted in different microbiome profiles, with tape stripping having higher alpha diversity and both techniques showing changes in the microbiome during narrowband ultraviolet B (NBUVB) therapy.
CLINICAL COSMETIC AND INVESTIGATIONAL DERMATOLOGY
(2022)
Article
Biochemical Research Methods
Tasneem Shetewi, Melissa Finnegan, Shane Fitzgerald, Shuai Xu, Emer Duffy, Aoife Morrin
Summary: This research investigated the emission of volatile fatty acids from healthy participant skin and its association with skin surface acidity. It found a linear correlation between the normalized chromatographic peak areas of recovered VFAs and hydrogen ion concentrations at different sites, which is a novel finding. These observations could potentially be applied in future wearable health monitoring and disease diagnostic applications.
JOURNAL OF BREATH RESEARCH
(2021)
Article
Plant Sciences
Y. Naude, R. Makuwa, V. Maharaj
SOUTH AFRICAN JOURNAL OF BOTANY
(2016)
Article
Biochemical Research Methods
Madelien Wooding, Egmont R. Rohwer, Yvette Naude
JOURNAL OF CHROMATOGRAPHY A
(2017)
Article
Food Science & Technology
Gabriel B. Akanni, Yvette Naude, Henriette L. de Kock, Elna M. Buys
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
(2018)
Article
Food Science & Technology
Gabriel B. Akanni, Henriette L. De Kock, Yvette Naude, Elna M. Buys
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
(2018)
Review
Chemistry, Analytical
B. K. Munjanja, Y. Naude, P. B. C. Forbes
TRENDS IN ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2020)
Review
Parasitology
Madelien Wooding, Yvette Naude, Egmont Rohwer, Marc Bouwer
PARASITES & VECTORS
(2020)
Article
Biochemical Research Methods
Madelien Wooding, Egmont R. Rohwer, Yvette Naude
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Madelien Wooding, Egmont R. Rohwer, Yvette Naude
JOURNAL OF SEPARATION SCIENCE
(2020)
Article
Biochemical Research Methods
Madelien Wooding, Tyren Dodgen, Egmont R. Rohwer, Yvette Naude
Summary: Human skin surface chemical cues are a complex mixture that mosquitoes use to locate and select their human host, based on inter- and intra-human variation in chemical profiles. Advanced analytical techniques were employed to identify potential biomarkers that could be used in future mosquito control programmes. The study compared skin surface chemical profiles to investigate perceived mosquito attractiveness and preference for biting certain regions on the human host, revealing a range of chemical compounds and identifying unique markers associated with attractiveness and different skin regions.
JOURNAL OF MASS SPECTROMETRY
(2021)
Article
Environmental Sciences
A. O. Adeola, S. A. Nsibande, A. M. Osano, J. K. Maghanga, Y. Naude, P. B. C. Forbes
Summary: This study sampled gas phase emissions from cooking devices used in urban and rural households in Kenya to measure the concentrations of polycyclic aromatic hydrocarbons (PAHs). The results showed variations in PAH concentrations due to different fuel types, combustion devices, climate, and household characteristics. Wood combustion using the 3-stone device had the highest average PAH concentration. The findings highlight the importance of monitoring PAH emissions from these cooking devices and fuels for public health and pollution mitigation.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Biochemical Research Methods
Portia C. K. Makhubela, Egmont R. Rohwer, Yvette Naude
Summary: This study investigated the potential of human skin volatile organic compounds (VOCs) as biomarkers for tuberculosis (TB) diagnosis. The results identified 27 TB-associated compounds and discovered 16 previously unreported potential biomarkers. The statistical analysis showed that these compounds have high accuracy in differentiating between TB-positive and TB-negative individuals.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Estefan van Vuuren, Yvette Naude
SOUTH AFRICAN JOURNAL OF CHEMISTRY-SUID-AFRIKAANSE TYDSKRIF VIR CHEMIE
(2019)
Article
Chemistry, Analytical
Madelien Wooding, Egmont R. Rohwer, Yvette Naude
ANALYTICA CHIMICA ACTA
(2017)
Meeting Abstract
Horticulture
Hannes Robbertse, Mart-Marie Bezuidenhout, Egmont Rohwer, Yvette Naude, Elsa S. du Toit