E ai ki tētahi arotake pūnaha hou mai i ngā kaipūtaiao i Jalan Universiti i Malaysia me Lancaster University i te UK, tera pea ka taea e ngā tangohanga mai i te rākau Thanaka o te Tonga-mā-rāwhiti o Āhia te whakarato i ngā huarahi taiao hei tiaki i te rā.
I roto i te pukapuka Cosmetics, e kī ana ngā kaipūtaiao kua whakamahia ngā tangohanga mai i te rākau i roto i ngā mahi tiaki kiri tuku iho mō te ārai i te koroheketanga, te tiaki i te rā, me ngā maimoatanga hakihaki mō ngā tau neke atu i te 2,000. "He nui te hiahia ki ngā parepare rā taiao hei whakakapi pea mō ngā hua tiaki rā i hangaia mā te whakamahi i ngā matū hangai pērā i te oxybenzone ka pāngia ai te hauora me te taiao," te tuhituhi a ngā kaiarotake.
Tānaka
Ko te Thanaka e pā ana ki tētahi rākau rongonui o Āhia ki te Tonga-mā-rāwhiti, e mōhiotia ana hoki ko Hesperethusa crenulata (he kupu whakarite ki a Naringi crenulata) me Limonia acidissima L.
I ēnei rā, he maha ngā waitohu i Mareia, Myanmar, me Thailand e whakaputa ana i ngā hua "whakapaipai" a Thanaka, e ai ki ngā arotake, tae atu ki a Thanaka Malaysia me Bio Essence i Mareia, Shwe Pyi Nann me Truly Thanaka o Myanmar, me Suppaporn me De Leaf o Thailand.
"Ko Shwe Pyi Nann Co. Ltd. te kaihanga me te kaweake matua o Thanaka ki Thailand, Mareia, Hingaiapoa me ngā Philippines," tā rātou tāpiri.
"Ka pania tika e te iwi Burma te paura Thanaka ki ō rātou kiri hei pare rā. Heoi, kāore ngā wāhi kōwhai e toe ana i runga i te paparinga e manakohia whānuitia ana e ētahi atu whenua engari ko Myanmar," te whakamārama a ngā kaiarotake. "Nō reira, hei painga mō te tini o te tangata ki te pare rā tūturu, ka hangaia ngā hua tiaki kiri Thanaka pērā i te hopi, te paura wetewete, te paura turanga, te mirimiri kanohi, te hinu tinana me te mirimiri kanohi."
"Hei whakatutuki i ngā hiahia o ngā kaihoko me te mākete, kua hangaia hoki a Thanaka hei horoi, hei hinu kiri, hei whakamakuku kiri, hei kirimi whakaora i ngā ira hakihaki me te kirimi whakakaha kiri. Ko te nuinga o ngā kaihanga ka tāpiri i ngā kai hohe pērā i ngā huaora, te collagen me te waikawa hyaluronic hei whakanui ake i te pānga mahi tahi me te whakarato maimoatanga ki ngā momo mate kiri."
Te Matū me te Mahi Koiora o Thanaka
E whakamārama ana te arotake kua whakaritea, kua tautuhia hoki ngā tangohanga mai i ngā wāhanga tipu maha, tae atu ki te kiri kakau, ngā rau, me ngā hua, me ngā alkaloids, flavonoids, flavanones, tannins, me coumarins ētahi noa iho o ngā matū koiora kua tautuhia.
"... ko te nuinga o ngā kaituhi i whakamahi i ngā whakarewa rauropi pērā i te hexane, te chloroform, te ethyl acetate, te ethanol me te methanol," tā rātou i kī. "Nō reira, ko te whakamahinga o ngā whakarewa matomato (pērā i te glycerol) i roto i te tango i ngā kai koiora he huarahi pai pea hei whakakapi i ngā whakarewa rauropi i roto i te tangohanga o ngā hua taiao, inā koa, i roto i te whakawhanaketanga o ngā hua tiaki kiri."
E whakamārama ana ngā tuhinga he maha ngā painga hauora pea o ngā tangohanga Thanaka, tae atu ki ngā āhuatanga antioxidant, anti-pakeketanga, anti-inflammatory, anti-melanogenic me te anti-microbial.
I mea ngā kaiarotake mā te whakakotahi i te pūtaiao mō tā rātou arotake, ko te tumanako ka "noho hei tohutoro mō te whakawhanaketanga o ngā hua tiaki kiri kei roto ko te Thanaka, inā koa, te pare rā."
Wā tuku: 19 o Ākuhata-2021