Ukubuyekezwa kwesayensi kusekela ikhono likaThanaka 'njengomuthi wemvelo wokuvikela ilanga'

Izingcezu ezivela esihlahleni sase-Southeast Asia i-Thanaka zingase zinikeze ezinye izindlela zemvelo zokuvikela ilanga, ngokusho kokubuyekezwa okusha okuhlelekile okuvela kososayensi e-Jalan Universiti eMalaysia nase-Lancaster University e-UK.

Bebhala ephephabhukwini i-Cosmetics, ososayensi baphawula ukuthi okukhishwe esihlahleni kusetshenziswe ekwelapheni isikhumba ngokwesiko ekulweni nokuguga, ukuvikela ilanga, kanye nokwelapha ama-acne iminyaka engaphezu kuka-2,000. “Izithako zemvelo zokuvikela ilanga ziye zakhanga izintshisekelo ezinkulu njengezinto ezingase zithathe indawo yemikhiqizo yokuvikela ilanga eyenziwe kusetshenziswa amakhemikhali okwenziwa njenge-oxybenzone angabangela izinkinga zempilo kanye nomonakalo emvelweni,” kubhala ababuyekezi.

I-Thanaka

I-Thanaka ibhekisela esihlahleni esivamile saseNingizimu-mpumalanga ye-Asia futhi yaziwa nangokuthi i-Hesperethusa crenulata (syn. Naringi crenulata) kanye ne-Limonia acidissima L.

Namuhla, kunezinhlobo eziningi eMalaysia, eMyanmar, naseThailand ezikhiqiza imikhiqizo "yezimonyo" yaseThanaka, kuchaza ababuyekezi, okuhlanganisa iThanaka Malaysia kanye neBio Essence eMalaysia, uShwe Pyi Nann kanye neTruly Thanaka evela eMyanmar, kanye neSuppaporn kanye neDe Leaf evela eThailand.

“IShwe Pyi Nann Co. Ltd. ingumkhiqizi ohamba phambili futhi ithumela iThanaka eThailand, eMalaysia, eSingapore nasePhilippines,” banezela.

“AmaBurma afaka i-Thanaka powder ngqo esikhumbeni sawo njenge-sunscreen. Kodwa-ke, amabala aphuzi asele esihlathini awamukelwa kabanzi kwamanye amazwe ngaphandle kweMyanmar,” kuchaza ababuyekezi. “Ngakho-ke, ukuze kuzuze abantu abaningi nge-sunscreen yemvelo, kukhiqizwa imikhiqizo yokunakekela isikhumba yeThanaka efana nensipho, i-loose powder, i-foundation powder, i-face scrub, i-body lotion kanye ne-face scrub.

"Ukuze kuhlangatshezwane nesidingo sabathengi kanye nemakethe, iThanaka iphinde yakhiwe yaba isihlanzi, i-serum, i-moisturiser, ukhilimu wokwelapha amabala e-acne kanye nokhilimu wokukhulisa ithoni. Iningi labakhiqizi lifaka izithako ezisebenzayo ezifana namavithamini, i-collagen kanye ne-hyaluronic acid ukwandisa umphumela we-synergic futhi linikeze ukwelashwa ezifweni ezahlukene zesikhumba."

I-Thanaka Chemistry kanye nomsebenzi webhayoloji

Ukubuyekezwa kuqhubeka kuchaza ukuthi izingcezu zilungisiwe futhi zahlukaniswa kusukela ezingxenyeni ezahlukene zezitshalo, okuhlanganisa igxolo lesiqu, amaqabunga, nezithelo, kanye nama-alkaloid, ama-flavonoid, ama-flavanones, ama-tannins, kanye nama-coumarins kungezinye zezinto eziphilayo ezichazwe.

“… ababhali abaningi basebenzisa izinyibilikisi eziphilayo ezifana ne-hexane, i-chloroform, i-ethyl acetate, i-ethanol kanye ne-methanol,” baphawula. “Ngakho-ke, ukusetshenziswa kwezinyibilikisi eziluhlaza (njenge-glycerol) ekukhipheni izithako ezisebenzayo kungaba yindlela enhle yokukhetha izinyibilikisi eziphilayo ekukhipheni imikhiqizo yemvelo, ikakhulukazi, ekuthuthukisweni kwemikhiqizo yokunakekelwa kwesikhumba.”

Izincwadi zichaza ukuthi izingcezu ezahlukene zeThanaka zingase zinikeze izinzuzo eziningi zezempilo, okuhlanganisa izakhiwo zokulwa ne-antioxidant, ukulwa nokuguga, ukulwa nokuvuvukala, ukulwa ne-melanogenic kanye nokulwa namagciwane.

Ababuyekezi bathi ngokuhlanganisa isayensi ukuze ibukezwe, banethemba lokuthi lokhu “kuzosebenza njengereferensi yokuthuthukiswa kwemikhiqizo yokunakekelwa kwesikhumba equkethe iThanaka, ikakhulukazi, isithako sokuvikela isikhumba.”