He polymer kūlohelohe a synthetic paha ka cellulose?

Kelulosehe polymer kūlohelohe ia, he ʻāpana koʻikoʻi o nā paia cell i nā mea kanu. ʻO ia kekahi o nā hui organik nui loa ma ka Honua a lawelawe ma ke ʻano he mea kūkulu i loko o ke aupuni mea kanu. Ke noʻonoʻo mākou i ka cellulose, hoʻopili pinepine mākou iā ia me kona alo i ka lāʻau, ka pulupulu, ka pepa, a me nā mea like ʻole i loaʻa mai nā mea kanu.

ʻO ke ʻano o ka cellulose he mau kaulahao lōʻihi o nā molekala glucose i hoʻopili ʻia ma o nā pilina beta-1,4-glycosidic. Hoʻonohonoho ʻia kēia mau kaulahao i kahi ala e hiki ai iā lākou ke hana i nā ʻano fibrous ikaika. ʻO ka hoʻonohonoho kūikawā o kēia mau kaulahao e hāʻawi i ka cellulose i kona mau waiwai mechanical kupaianaha, e lilo ia i mea nui i ka hāʻawi ʻana i ke kākoʻo kūkulu i nā mea kanu.

ʻO ke kaʻina hana o ka cellulose synthesis i loko o nā mea kanu e pili ana i ka enzyme cellulose synthase, ka mea e polymerize i nā molekala glucose i loko o nā kaulahao lōʻihi a hoʻopuka iā lākou i loko o ka paia o ke kelepona. Hana ʻia kēia kaʻina hana i nā ʻano like ʻole o nā cell mea kanu, e hāʻawi ana i ka ikaika a me ka paʻakikī o nā ʻiʻo mea kanu.

Ma muli o kona nui a me nā waiwai kūikawā, ua loaʻa i ka cellulose nā noi he nui ma mua o kona kuleana i ka biology mea kanu. Hoʻohana nā ʻoihana i ka cellulose no ka hana ʻana i ka pepa, nā lole (e like me ka pulupulu), a me kekahi mau ʻano biofuels. Eia kekahi, hoʻohana ʻia nā derivatives cellulose e like me ka cellulose acetate a me nā cellulose ethers i nā huahana like ʻole, me nā lāʻau lapaʻau, nā mea hoʻohui meaʻai, a me nā uhi.

ʻOiaikeluloseʻOiai he polymer kūlohelohe ia iho, ua hoʻomohala nā kānaka i nā kaʻina hana e hoʻololi a hoʻohana iā ia ma nā ʻano like ʻole. No ka laʻana, hiki i nā hana kemika ke hoʻololi i kona mau waiwai e ʻoi aku ka kūpono no nā noi kikoʻī. Eia nō naʻe, ʻoiai i nā ʻano i hoʻololi ʻia, mālama ka cellulose i kona kumu kūlohelohe kumu, e lilo ia i mea hana maʻalahi a waiwai nui i nā ʻano kūlohelohe a me nā ʻenekinia.