Page 17 - Demo

Bilimsel / Scientific15ciltte hiperpigmentasyona neden olan melanin %u00fcretiminde rol oynar. Kollajenaz ise k%u0131r%u0131%u015f%u0131kl%u0131klara neden olan yap%u0131sal protein kollajeni par%u00e7alar.) K%u0131rm%u0131z%u0131 %u00e7ipura bakterisinden elde edilen %u00fc%u00e7 molek%u00fcl%u00fcn h%u00fccrelere zarar vermeden her iki enzimi de en iyi %u015fekilde inhibe etmesi, onlar%u0131n gelecekte kozmetik %u00fcr%u00fcn alan%u0131nda kullan%u0131m%u0131nda umut vaat eden k%u0131r%u0131%u015f%u0131kl%u0131k %u00f6nleyici ve cilt parlat%u0131c%u0131 maddeler haline gelmesini sa%u011fl%u0131yor.Kaynak / Source: Jonghwan Kim, Su Jung Hwang, Gyu Sung Lee, Ju Ryeong Lee, Hye In An, Hong Sik Im, Minji Kim, Sang-Seob Lee, Hyo-Jong Lee, Chung Sub Kim. Collagenase and Tyrosinase Inhibitory Compounds from Fish Gut Bacteria Ruegeria atlantica and Pseudoalteromonas neustonica. ACS Omega, 2024; 9 (32): 34259 DOI: 10.1021/acsomega.3c09585American Chemical Society. %u201cHow fish guts might play a role in future skin care products.%u201d ScienceDaily. ScienceDaily, 5 September 2024. .G%u0131dada yer alan plastikleri par%u00e7alayan at%u0131k su bakterileri Wastewater bacteria can breakdown plastic for foodAra%u015ft%u0131rmac%u0131lar, Comamonadacae adl%u0131 yayg%u0131n bir %u00e7evresel bakteri ailesinin, kentsel nehirler ve at%u0131k su sistemlerinde bulunan plastikler %u00fczerinde b%u00fcy%u00fcd%u00fc%u011f%u00fcn%u00fc uzun zamand%u0131r g%u00f6zlemliyorlar. Ancak bu Comamonas bakterilerinin tam olarak ne yapt%u0131%u011f%u0131 bir s%u0131r olarak kald%u0131.Northwestern %u00dcniversitesi liderli%u011findeki ara%u015ft%u0131rmac%u0131lar, Comamonas bakterisinin h%u00fccrelerinin yiyecek i%u00e7in plasti%u011fi nas%u0131l par%u00e7alad%u0131%u011f%u0131n%u0131 ke%u015ffetti. %u00d6nce plasti%u011fi %u00e7i%u011fneyerek nanoplastik ad%u0131 verilen k%u00fc%u00e7%u00fck par%u00e7alara ay%u0131r%u0131yorlar. Ard%u0131ndan, plasti%u011fi daha da par%u00e7alayan %u00f6zel bir enzim salg%u0131l%u0131yorlar. Ara%u015ft%u0131rmac%u0131lar, son olarak bakterilerin plastikteki karbon atomlar%u0131ndan olu%u015fan bir halkay%u0131 besin kayna%u011f%u0131 olarak kulland%u0131%u011f%u0131n%u0131 tespit etti.Bu ke%u015fif, i%u00e7me suyunu kirleten ve vah%u015fi ya%u015fama zarar veren, %u00e7%u0131kar%u0131lmas%u0131 zor plastik at%u0131klar%u0131n teWastewater bacteria can breakdown plastic for foodResearchers have long observed that a common family of environmental bacteria, Comamonadacae, grow on plastics littered throughout urban rivers and wastewater systems. But what, exactly, these Comamonas bacteria are doing has remained a mystery.Now, Northwestern University-led researchers have discovered how cells of a Comamonas bacterium are breaking down plastic for food. First, they chew the plastic into small pieces, called nanoplastics. Then, they secrete a specialized enzyme that breaks down the plastic even further. Finally, the bacteria use a ring of carbon atoms from the plastic as a food source, the researchers found.The discovery opens new possibilities for developing bacteria-based engineering solutions to help clean up difficult-to-remove plastic waste, which pollutes if these bacteria produce any metabolite compounds that could have cosmetic benefits. The team identified 22 molecules made by the gut bacteria of the red seabream and blackhead seabream. They then evaluated each compound%u2019s ability to inhibit tyrosinase and collagenase enzymes in lab-grown mouse cells. (Tyrosinase is involved in melanin production, which causes hyperpigmentation in aging skin. Collagenase breaks down the structural protein collagen, causing wrinkles.) Three molecules from the red seabream bacteria inhibited both enzymes the best without damaging the cells, making them promising anti-wrinkle and skin-brightening agents for future cosmetic products.Bilimsel / Scientific