Hangarau Hanga Gelatin Ika
He biopolymer taiao te gelatin e whakamahia whānuitia ana i roto i ngā ahumahi kai, rongoā, whakapaipai, me te whakaahua. Ko te puna gelatin tino noa ko te kiri me ngā wheua kau me te poaka. Heoi, ko te pikinga ake o ngā āwangawanga mō te tiwhikete halal, te haumaru kai, ētahi mate kararehe, me te whakamahinga o ngā para ika kua arahi ki te whanaketanga o te gelatin ika hei huarahi kē atu. Ka hangaia te gelatin ika mai i te collagen e kitea ana i roto i te kiri ika, ngā wheua, ngā unahi, me te kiko honohono. Mā te hangarau whakaputa tika, ka taea e te gelatin ika te whai āhuatanga mahi whakataetae me te tautoko i ngā mātāpono pumau mā te whakamahi i ngā hua taha hī ika.
Ngā Rauemi Mata me ō rātou Pūmanawa
Ko te tikanga, ko te tiērana ika he mea hanga mai i ngā para tukatuka ika, pērā i te kiri, te wheua, te unahi, me ngā pane. Ko te kiri ika te mea e pai ana ki te whiriwhiri nā te nui o te koratene me te ngāwari o te tukatuka ki te whakataurite ki te wheua. Ko ngā momo ika e rangahauhia pinepinetia ana ko te tilapia, te pangasius, te catfish, te tuna, te hāmana, me ētahi atu ika moana. Ko te kōwhiringa o ngā momo ika ka pā ki te hua me te kounga o te tiērana, inā koa te hanganga o ngā waikawa amino (hei tauira, te proline me te hydroxyproline), e whai wāhi ana ki te kaha o te tiērana.
Haunga te momo ika, he mea nui anō hoki te āhua o ngā rauemi mata. Mā ngā rauemi mata hou, ngā mea rānei e whakamatao wawetia ana i muri i te tukatuka ka whakaiti i te pakaru o te pūmua nā te mahi a te whākōkī me te moroiti. Nā te mea i ahu mai ngā rauemi mata i te para, ko te whakahaere mekameka makariri me te akuaku te mea nui ki te whakaputa i te gelatin haumaru me te kounga teitei.
Ngā Mātāpono Taketake o te Hanga Gelatin
I te nuinga o te wā, ka puta te gelatin mā te whakakorenga ā-wāhanga o te collagen. Ko te collagen, he hanganga toru-porowhita tōna i te tīmatanga, ka hurihia hei mekameka polypeptide māmā ake, ka wairewa ki te wai wera, ā, ka taea te hanga i te kirikiri ina whakamatao. Kei roto i tēnei tukanga te whakarite rauemi, te maimoatanga i mua, te tango, te purenga, te whakamaroke, me te takai.
I roto i te ahumahi, e rua ngā momo matua o te gelatin e mōhiotia ana i runga i te maimoatanga i mua: te momo gelatin A (kua maimoatia ki te waikawa) me te momo gelatin B (kua maimoatia ki te turanga). Mō te gelatin ika, he nui ake te whakamahinga o te maimoatanga waikawa nā te mea he ngāwari te pirau o te kiko ika, ā, he poto ake ngā wā tukatuka. Heoi, kei te whakawhanakehia hoki ngā huinga waikawa-turanga, te whakamahinga rānei o ngā whākōkī hei whakapai ake i te hua me te kounga.
Ngā Wāhanga o te Hangarau Hanga Gelatin Ika
1. Te Whakarite me te Horoi
Ka horoia ngā rauemi mata (pērā i te kiri ika) hei tango i te toto, te ngako, te toenga mīti, me te paru. Ka taea te horoi mā te whakamahi i te wai matao e rere ana, i ētahi wā mā te whakamahi i te wai tote whakaranu. Ko te whāinga he whakaiti i te nui o ngā moroiti me te whakaiti i ngā haunga ika. Ka tapahia hoki ngā wahi iti i tēnei wā kia pai ake ai te mahi matū me te tango.
2. Te Tango Ngako (Te Whakaiti Ngako)
Ka taea e te nui o te ngako te whakapōrearea, te whakaiti hoki i te pumau o te hua. Ka taea te tango ngako mā te whakamahi i ngā tikanga ā-tinana (te whakamahana ngawari me te wehewehe) mā te whakamahi rānei i ngā whakarewa kai motuhake. I roto i te nuinga o ngā tukanga gelatin ika, ka iti te tango ngako mō te haumaru me te whai hua, engari he mea nui tonu, inā koa mō ngā ika he nui te ngako.
3. Te Maimoatanga i mua: Te Whakakorenga o ngā Kohu me te Pupuhi o te Koratene
Ko te whāinga o te maimoatanga o mua he whakatuwhera i te hanganga o te collagen kia māmā ake ai te tango i te gelatin.
– Te tango i ngā matū: Mena he wheua, he unahi rānei te rauemi mata, me rumakina ki roto i tētahi wai waikawa (hei tauira, he HCl iti te kukū) hei whakarewa i ngā kohuke pēnei i te konupūmā phosphate. Ka puta i tēnei wāhanga te ossein (he hanganga collagen kua ngaro ngā kohuke).
– Maimoatanga waikawa: He maha ngā wā ka rumakina te kiri ika ki ngā waikawa waro (hei tauira, te waikawa acetic, te waikawa citric rānei) hei āwhina i te pupuhi i te kiko me te wawahi i ētahi hononga o te collagen.
– Maimoatanga kawakore: I ētahi wā, ka whakamahia ngā otinga kawakore (hei tauira, te NaOH waimeha) hei tango i ngā pūmua me ngā tae kore-korakora. Heoi, ki te kaha rawa te maimoatanga kawakore, ka kino pea ngā mekameka korakora, ā, ka whakaiti i te kaha o te tiēre.
He mea nui te arotau i te kukū o te otinga, te ōwehenga o ngā kai-ki-te-wairewa, te pāmahana, me te wā rumaki. Mēnā he roa rawa te maimoatanga i mua, ka taea te whakaiti i te taumaha ngota o te gelatin, engari mēnā he poto rawa te maimoatanga, ka iti ake te pai o te tangohanga.
4. Tangohanga o te Gelatin
Ko te tikanga, ka mahia te tangohanga ki te wai i te pāmahana kua whakahaeretia. Mō te gelatin ika, ka taea te tango i ngā wāhanga (tangohanga maha-wāhanga) i te piki haere o te pāmahana, hei tauira, ka tīmata i te 40–50°C, kātahi ka piki ake ki te 60–70°C. Mā te tangohanga maha-wāhanga ka āwhina i te whiwhi i ngā wāhanga gelatin kounga teitei ake i ngā wāhanga tuatahi (he nui ake te matotoru me te kaha o te gel) ā, ka whakanui ake i te hua i ngā wāhanga e whai ake nei.
Ko ngā tawhā tango nui ko:
– Te pāmahana: Ka piki ake te hua ka piki ake, engari ka piki ake anō hoki te mōrearea o te pirau o te pūmua.
– Wā: Ka taea e te wā tango roa rawa te whakaiti i te kounga nā te nui rawa o te waikura.
– pH: Ka pā te pH ki te wairewatanga me te pumau o te gelatin.
Ko ngā hua o te tangohanga he wairewa gelatin (he wai gelatin) kei roto tonu ngā matūriki angiangi, ngā kohuke toenga, me ngā wāhanga pūngāwerewere e whakaputa ana i te kakara.
5. Te Tātari me te Whakamārama
Ka tātarihia te otinga gelatin hei tango i ngā toenga totoka. Ka taea te whakamārama mā te tātari maha-wāhanga, mā te mīhini tātari, mā te kiriuhi tātari moroiti rānei. Ka whakamahia hoki e ētahi tukanga te waro whakahohe hei whakaiti i te tae me te haunga, engari me whakahaere tēnei nā te mea ka taea te whakaiti i te hua me te here i ngā pūmua.
6. Te arotahi
Me whakatōtō ngā wairewa gelatin kua whakaranua i mua i te whakamaroke. Ka taea te whakatutuki i te whakatōtō mā te whakamahi i te mīhini whakamomona korehau hei pupuri i te pāmahana kia kaua e tino teitei, hei pupuri hoki i te kounga o te pūmua. Ko te nuinga o te wā ka whakatauhia te kukū ūnga i runga i te whai huatanga o te whakamaroke me ngā whakatakotoranga o te hua whakamutunga.
7. Te Whakahoromata me te Whakamaroke
Ka taea te whakamātao i ngā wairewa gelatin hei whakaiti i te maha o ngā moroiti. Muri iho, ka whakamaroketia hei pepa, hei kirikiri, hei paura rānei. Ko ngā tikanga whakamaroke noa ko:
– Whakamaroke i roto i te paepae/ōumu i te pāmahana iti-waenga,
– Te whakamaroke i te pahu,
– Whakamarokehia mā te rehu hei whakaputa i te paura pai (he nui ake te utu, ā, me tino āta whakahaere).
Kātahi ka hurihia te gelatin maroke, ka tātarihia kia ōrite te rahi o te matūriki.
8. Te Tākai me te Rokiroki
Me ātete te takai ki te kohu nā te mea he waiora te gelatin (he ngāwari te mimiti i te wai). Ko te penapena pai ko te wā maroke, hauhautanga hei ārai i te kirikiri, te panoni matotoru, me te tipu o ngā moroiti.
Ngā Āhuatanga Kounga o te Gelatin Ika
Ko te kounga o te gelatin ka aromatawaihia mā te whakamahi i ngā tawhā ā-tinana, ā-matū, me ā-moroiti. Ko ētahi o ngā tawhā matua ko:
– Te kaha o te tiēre (te uara o te pua): e tohu ana i te kaha ki te hanga i te tiēre. He iti ake te Pua o te tiēre ika i te tiēre mammal, inā koa nō ngā ika toropika, nā te mea he hanganga waikawa amino motuhake tōna.
– Te matotoru: e pā ana ki te roa o te mekameka pūmua me te kaha mahi i roto i ngā tono kai.
– Te ira rewa me te ira tio: he iti ake te ira tio o te tiakarete ika, ā, he pai mō ngā hua e hiahiatia ana kia tere te rewa i roto i te waha, engari kāore i te tino pumau i ngā pāmahana rūma teitei.
– Te nui o te wai me te pungarehu: ka puta te pungarehu nui mai i te koretake o te tango i ngā kohuke; ka tere ake te pirau ina nui rawa te wai.
– Tae me te kakara: he wero noa ki te gelatin ika ko te kakara ika me pehi mā roto i ngā rauemi mata hou, te tango ngako, me te purenga.
Ngā Wero Auaha me te Hangarau
He maha ngā wero e pā ana ki te whanaketanga o te tiakarete ika, inā koa mō te kounga o te hanganga. Ko ngā rerekētanga o ngā momo ika, te wā, te kai, te pakeke, me ngā tikanga whakahaere para, ka whai wāhi katoa ēnei ki ngā rerekētanga o ngā āhuatanga o te koratene. Hei tāpiri, he ngāwari ake te tiakarete ika ki ngā kakara, ā, he iti ake te pāmahana o te tiakarete.
Hei whakakore i tēnei, he maha ngā mahi auaha kua whakawhanakehia:
1. Te tango whākōkī: mā te whakamahi i ngā whākōkī protease whakahaeretia ka taea te whakanui ake i te hua, engari me tūpato kei puta he gelatin he iti rawa te taumaha ngota.
2. Hangarau membrane (ultrafiltration): āwhina i te purenga me te wehewehe i ngā pūmua i runga i te rahi ngota.
3. Te tango haunga me ngā mea mimiti: te whakamahinga o te waro whakahohe, o ētahi kapia rānei hei whakaiti i ngā matū e puta ai te haunga.
4. Te whakaranu: ka taea te whakaranu i te gelatin ika ki ngā polysaccharides (hei tauira, te carrageenan, te pectin rānei) hei whakapai ake i te kakano me te pumau.
Ngā Whakamahinga o te Gelatin Ika
He whānui te kaha o te tiakarete ika, inā koa i roto i ngā hua e hiahia ana ki te tiwhikete halal me ngā pūtake ehara i te kararehe. I roto i te kai, ka whakamahia te tiakarete ika i roto i ngā monamona tiēre, ngā māshmallow, ngā kai reka, ngā kāpū ngohengohe, ngā hua miraka, me te mea hei whakaū, hei hanga kiriata kai rānei. I roto i ngā rongoā me ngā mea whakapaipai, ka taea te whakamahi i te tiakarete ika i roto i ngā kāpū, ngā kopare kanohi, me te mea hei kawe i roto i ngā pūnaha tuku kai hohe.
Te Katinga
Ko te hangarau whakaputa tiēra ika he mahi rautaki ki te whakamahi i ngā para hī ika hei hua nui te uara, me te aro atu ki te hiahia o te mākete mō te tiēra halal, haumaru, me te pumau. Me whakapai ake te tukanga, mai i te whiriwhiri rauemi mata me te maimoatanga o mua, te tango, ki te purenga me te whakamaroke, kia puta ai te tiēra me ngā hua nui me te kounga mahi pai. Mā te tautoko o ngā auahatanga pēnei i te tango maha-wāhanga, te hangarau kiriuhi, me te whakahaere kakara, ka taea e te tiēra ika te noho hei rauemi mata nui mō ngā momo ahumahi ā muri ake nei, me te whakanui ake i te uara tāpiri o te rāngai hī ika.
