Organosulfur content of vegetables quantified
Selective and sensitive measurement of reactive polysulfides in 22 different vegetables
2023-03-13
(Press-News.org)
Osaka, Japan – The health-promoting effects of sulfur-rich vegetables such as onions and garlic have been known for a long time. How food containing sulfur compounds promotes health has not been easy to explore, as the levels—and types—of reactive polysulfides found in different vegetables had not been accurately measured.
A research team, led by Assistant Professor Shingo Kasamatsu from the Osaka Metropolitan University Graduate School of Science, has established a method for selective and sensitive detection of reactive polysulfides—which can act as potent antioxidants. By using mass spectrometry with a stable-isotope dilution method, the team successfully quantified the total reactive polysulfide content of 22 vegetables, including onions and garlic. Their findings were published in Food Chemistry.
The team also measured the polysulfide content in vegetables to analyze the overall characteristics of the reactive polysulfide. As a result, they were the first to reveal that high levels of reactive polysulfides could be found, not only in vegetables of the leek genus (Allium), such as onions and garlic but also in cruciferous vegetables (Brassicaceae), such as broccoli and cabbage.
“The results of this study will provide a basis for research on reactive polysulfides in food, whose detailed properties and endogeous production mechanisms have not yet been clarified. This will significantly contribute to the development of the research field,” stated Dr. Kasamatsu. “In the future, we expect that this research will be helpful for developing foods and supplements rich in reactive polysulfide that exhibit superior antioxidant activity.”
###
About OMU
Osaka Metropolitan University is a new public university established by a merger between Osaka City University and Osaka Prefecture University in April 2022. For more science news, see https://www.omu.ac.jp/en/, and follow @OsakaMetUniv_en, or search #OMUScience.
END
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
2023-03-13
BALTIMORE, Md. (March 13, 2023) – Scientists led by the Lieber Institute for Brain Development are studying how a mother’s SARS-CoV-2 infection during pregnancy affects the biology of the placenta and the corresponding trajectory of the child’s brain development, including the risk for neurodevelopmental disorders such as schizophrenia and autism. The work is made possible by a $3 million, five-year grant from the Eunice Kennedy Shriver National Institute of Child Health & Human Development, part ...
2023-03-13
Communities that are constructing new multi-sport facilities for major events could run the risk of ending up with expensive under-used complexes, but a new study suggests there are several factors that can keep them productive in the long run.
Researchers found that factors such as the location and design of the facility, the formal agreements between operating groups and the breadth of sport and recreation programming offered at the facility all contributed to promoting a legacy of participation post-event.
“Major sporting ...
2023-03-12
Surgeons in Germany have shown a small technical change to keyhole surgery for prostate cancer can more than halve one of the most common post-operative complications – where lymphatic fluid collects in the pelvis.
The technique involves creating a small flap in the peritoneum – the lining of the abdomen – and attaching this flap down into the pelvis. This creates a route for lymphatic fluid to escape from the pelvis into the abdomen where it can be more easily absorbed.
The findings ...
2023-03-12
Vasectomies are much less likely to cause complications than expected, according to a new UK study reviewing the outcomes from over 90,000 vasectomies performed over 15 years.
The study, led by researchers from Gloucestershire Hospitals NHS Foundation Trust, is being presented today at the European Association of Urology (EAU) Congress in Milan.
It shows that existing leaflets explaining the potential complications to patients are based on outdated figures.
Around 11,000 vasectomy operations are performed every year ...
2023-03-12
A scientific definition to determine whether a man’s erection can be deemed a "grower " or a "shower" has been produced by researchers.
The findings are presented today at the European Association of Urology (EAU) Congress in Milan.
Urologists based at three hospitals and a clinic in Madrid conducted ultrasound scans on 225 men in both flaccid and then erect states.
The researchers, led by Dr Manuel Alonso-Isa, a urologist at the University Hospital HM Puerta del Sur in Madrid, Spain, had hoped to find factors among the men that would predict if they fell into one of these ...
2023-03-12
Active monitoring of prostate cancer has the same high survival rates after 15 years as radiotherapy or surgery, reports the largest study of its kind today.
The latest findings from the ProtecT trial, led by the Universities of Oxford and Bristol, are presented today at the European Association of Urology (EAU) Congress in Milan and published in the New England Journal of Medicine.
The trial was funded by the National Institute for Health and Care Research (NIHR).
Although men on active monitoring – which involves regular tests to check on the cancer – were more likely to see it progress ...
2023-03-12
The results of the clinical trial of a new wrist device designed to help control the symptoms of Tourette syndrome have shown it significantly reduces the severity and frequency of tics.
The prototype wrist device, which was recently tried out by Lewis Capaldi, delivers electrical pulses to reduce the amount and severity of tics experienced by individuals with Tourette’s and was trialed by 121 people across the UK. The results have been announced in MedRxive.
The device has been developed by scientists at the University of Nottingham and spin-out company Neurotherapuetics Ltd who have recently secured £1m in additional funding to ...
2023-03-11
A research paper by scientists at the Beijing Institute of Technology and University of Lancaster displayed a recent advancement of using fuel explosion as the power of source to achieve the rapid and powerful motion for the medium-size robots.
The new research paper, published in the journal Cyborg and Bionic Systems, provided a new kind of actuation system for the robotic system, providing a promising patentability to largely improve the working length of the conventional medium-size robotic systems.
“Achieving the rapid and fast motion of the medium-size robot has been a challenging task for many years, …” ...
2023-03-11
COLUMBUS, Ohio – Most of what scientists know about viruses in animals is the list of nucleotides that compose their genomic sequence – which, while valuable, offers very few hints about a virus’s ability to infect humans.
Rather than let the next outbreak take the world by surprise, two virologists say in a Science Perspective article published today (March 10, 2023) that the scientific community should invest in a four-part research framework to proactively identify animal viruses that might infect humans.
“A lot of financial investment has gone into sequencing viruses in nature and thinking that from sequence alone we’ll be ...
2023-03-11
EAST LANSING, MI – The International Research Network for Nuclear Astrophysics (IReNA), supported by the National Science Foundation (NSF) and headquartered at Michigan State University (MSU), brings together nuclear physicists, astronomers, and computational scientists to try to answer a long-standing question in science: Where do the elements that make up our world come from?
Founded in 2019, IReNA continues to expand its global reach for cooperation to advance knowledge in nuclear astrophysics, and now welcomes a new network partner: the Ibero-American Network of Nuclear ...
LAST 30 PRESS RELEASES:
[Press-News.org] Organosulfur content of vegetables quantified
Selective and sensitive measurement of reactive polysulfides in 22 different vegetables
