The red pigment prodigiosin could have cosmetic benefits, such as reducing dark spots and lightening a person’s complexion, Tatung University biological engineering professor Will Chen (陳志成) said this week.
About a decade ago, his research team added prodigiosin to fish feed to enhance the red coloring of a tropical species, Chen said.
About three months later, the doctoral candidates in charge of the fish reported that the experiment had failed, because the fish turned bone-white, he said.
Photo provided by Tatung University
The unexpected result triggered a series of new inquires, eventually leading to the discovery that prodogiosin could potentially counter the effect of melanin on skin tissue, which leads to dark spots and tanning, he said.
Prodigiosin is a naturally occurring carotenoid produced by several types of microbes — including the halophiles from which the team extracted the substance, he said, adding that prodigiosin is two to seven times more effective as an anti-oxidant than other carotenoids.
The Dead Sea is rich with salt-eating halophiles that produce prodigiosin, which could explain the reported cosmetic effects of the salt lake’s mud, he said.
Cell tissue research and early clinical trials at Tri-Service General Hospital found that using prodigosin might reverse melanin-induced pigmentation, he said, adding that the university team was working on applying the discovery to cosmetic medicine.
In other news, a new mosquito trap designed by the National Health Research Institutes (NHRI) quickly identifies whether a mosquito could spread dengue fever and can determine high-risk locations.
Traditional traps are designed to kill mosquitoes, not to identify their species, but the newly developed “smart multimembrane mosquito trapping device” catches them alive and uses special technology to identify them, NHRI researcher Liao Lun-de (廖倫德) said yesterday.
As soon as a mosquito flies into the trap, the device takes 0.07 seconds to photographically determine with more than 90 percent accuracy whether it is the Aedes aegypti or Aedes albopictus species, which spread dengue fever and the Zika virus, Liao said.
The data can be transmitted to the NHRI and help in identifying neighborhoods at high risk for dengue fever, Liao added.
With enough data points, an early-warning system could be developed, allowing authorities to take preventive measures, Liao said.
Because the mosquitoes are captured alive, their blood can be tested to identify what they have bitten and whether they are carrying a virus, the researcher said.
It took the NHRI 18 months to design the trap, which combines photoelectric sensing and artificial intelligence technology, Liao said, adding that each device costs NT$2,000 to NT$4,000.
Former Czech Republic-based Taiwanese researcher Cheng Yu-chin (鄭宇欽) has been sentenced to seven years in prison on espionage-related charges, China’s Ministry of State Security announced yesterday. China said Cheng was a spy for Taiwan who “masqueraded as a professor” and that he was previously an assistant to former Cabinet secretary-general Cho Jung-tai (卓榮泰). President-elect William Lai (賴清德) on Wednesday last week announced Cho would be his premier when Lai is inaugurated next month. Today is China’s “National Security Education Day.” The Chinese ministry yesterday released a video online showing arrests over the past 10 years of people alleged to be
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XINJIANG: Officials are conducting a report into amending an existing law or to enact a special law to prohibit goods using forced labor Taiwan is mulling an amendment prohibiting the importation of goods using forced labor, similar to the Uyghur Forced Labor Prevention Act (UFLPA) passed by the US Congress in 2021 that imposed limits on goods produced using forced labor in China’s Xinjiang region. A government official who wished to remain anonymous said yesterday that as the US customs law explicitly prohibits the importation of goods made using forced labor, in 2021 it passed the specialized UFLPA to limit the importation of cotton and other goods from China’s Xinjiang Uyghur region. Taiwan does not have the legal basis to prohibit the importation of goods