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Fitohemija in ultrazvok: visoko učinkovita ultrazvočna ekstrakcija bioaktivnih snovi iz rastlin
Fitohemija je znanost, ki se ukvarja s kemijskimi spojinami rastlinskega izvora – od polifenolov, flavonoidov in alkaloidov do terpenov, saponinov, glikozidov, pigmentov, antioksidantov in sestavin eteričnih olj. Te fitohemikalije so dragocene za nutraceutike, farmacevtske izdelke, kozmetiko, živilske sestavine, naravna barvila, dišave, zeliščne izvlečke in…
https://www.hielscher.com/phytochemistry.htm
Sonikacija omogoča novo raven nadzora pri samosestavljanju celuloznih nanokristalov
, Kathrin HielscherSonication holda the key to unlocking more reliable, scalable production of cellulose nanocrystal (CNC) materials. A new study reveals that sonication doesn’t just break up CNC clusters – it actively reshapes how these sustainable nanomaterials self-assemble into cholesteric liquid crystal structures responsible for brilliant structural color. By observing CNC ordering inside tiny evaporating droplets, researchers found that ultrasound can delay gelation, shift kinetic arrest, and tune the helical pitch evolution with remarkable precision. The findings highlight sonication as an industrially relevant processing lever for programming reproducible CNC-based photonic coatings and advanced bio-based materials at scale.
https://www.hielscher.com/sonication-enables-a-new-level-of-control-in-cellulose-nanocrystal-self-assembly.htm