Zomwe zachokera kumtengo wakumwera chakum'mawa kwa Asia Thanaka zitha kupereka njira zina zachilengedwe zodzitetezera ku dzuwa, malinga ndi kuwunika kwatsopano mwadongosolo kuchokera kwa asayansi ku Jalan Universiti ku Malaysia ndi Lancaster University ku UK.
Polemba m’magazini yotchedwa Cosmetics, asayansiwo ananena kuti kwa zaka zoposa 2,000, zinthu zochokera mumtengowo zakhala zikugwiritsidwa ntchito posamalira khungu pofuna kuletsa kukalamba, kuteteza dzuwa, ndiponso kuchiza ziphuphu. "Mafuta achilengedwe a dzuwa akopa chidwi chachikulu monga choloweza m'malo mwa zinthu zoteteza dzuwa zopangidwa ndi mankhwala opangidwa ndi oxybenzone omwe angayambitse mavuto azaumoyo komanso kuwonongeka kwa chilengedwe," adalemba owunikirawo.
Thanaka
Thanaka amatanthauza mtengo wamba waku Southeast Asia ndipo umadziwikanso kuti Hesperethusa crenulata (syn. Naringi crenulata) ndi Limonia acidissima L.
Masiku ano, pali mitundu yambiri ku Malaysia, Myanmar, ndi Thailand yomwe imapanga mankhwala a Thanaka "cosmeceutical", owunikirawo adalongosola, kuphatikizapo Thanaka Malaysia ndi Bio Essence ku Malaysia, Shwe Pyi Nann ndi Truly Thanaka ochokera ku Myanmar, ndi Suppaporn ndi De Leaf ochokera ku Thailand.
"Shwe Pyi Nann Co. Ltd. ndi omwe amapanga ndi kutumiza kunja kwa Thanaka ku Thailand, Malaysia, Singapore ndi Philippines," anawonjezera.
Ofufuzawo anafotokoza kuti: “Anthu a ku Burma amapaka ufa wa Thanaka pakhungu lawo ngati mafuta oteteza ku dzuwa.” Komabe, zigamba zachikasu zomwe zatsala pa tsaya sizimavomerezedwa ndi mayiko ena kupatulapo Myanmar. Chifukwa chake, kuti apindule ndi anthu ambiri okhala ndi mafuta oteteza ku dzuwa, zinthu zopangidwa ndi Thanaka zosamalira khungu monga sopo, ufa wosalala, ufa woyambira, zotsuka kumaso, mafuta odzola ndi zotsuka kumaso zimapangidwa.
"Kuti akwaniritse ogula komanso zomwe akufuna pamsika, Thanaka amapangidwanso kukhala oyeretsa, seramu, moisturiser, zonona zochizira ziphuphu zakumaso ndi zonona zonona." Ambiri mwa opanga amawonjezera zinthu zogwira ntchito monga mavitamini, kolajeni ndi hyaluronic acid kuti awonjezere mphamvu ya synergic ndikuchiritsa matenda osiyanasiyana akhungu.
Thanaka Chemistry ndi biological zochitika
Ndemangayi ikupitiriza kufotokoza kuti zowonjezera zakonzedwa ndikudziwika kuchokera kumagulu osiyanasiyana a zomera, kuphatikizapo makungwa a tsinde, masamba, ndi zipatso, ndi alkaloids, flavonoids, flavanones, tannins, ndi coumarins kukhala ena mwa bioactives omwe amadziwika.
"... olemba ambiri adagwiritsa ntchito zosungunulira za organic monga hexane, chloroform, ethyl acetate, ethanol ndi methanol," adatero. "Chotero, kugwiritsa ntchito zosungunulira zobiriwira (monga glycerol) pochotsa zosakaniza za bioactive zitha kukhala njira yabwino yopangira zosungunulira zachilengedwe pochotsa zinthu zachilengedwe, makamaka popanga zinthu zosamalira khungu."
Zolemba zamabuku zomwe zotulutsa zosiyanasiyana za Thanaka zitha kupereka zabwino zambiri zaumoyo, kuphatikiza antioxidant, anti-ageing, anti-inflammatory, anti-melanogenic and anti-microbial properties.
Owunikirawo adati pobweretsa sayansiyi kuti iwunikenso, akuyembekeza kuti "zikhala ngati chiwongolero chakupanga zinthu zosamalira khungu zomwe zili ndi Thanaka, makamaka zoteteza ku dzuwa."
Nthawi yotumiza: Aug-19-2021