Ubuchwepheshe Bokomisa Umkhiqizo Wezinhlanzi
Ukomisa kungenye yezindlela zobuchwepheshe zokucubungula ezindala kakhulu nezisetshenziswa kakhulu embonini yezokudoba. Umgomo wayo oyinhloko ukunciphisa okuqukethwe kwamanzi kwezinto kuze kube sezingeni elivimbela ukukhula kwamagciwane, linciphise ukusabela kwama-enzyme, futhi linciphise izinga lomonakalo we-oxidative. Lokhu kwandisa isikhathi sokuphelelwa yisikhathi komkhiqizo, kwenza kube lula ukusatshalaliswa, futhi kunikeze inani elengeziwe lezomnotho, ikakhulukazi emiphakathini yasogwini kanye namabhizinisi amancane naphakathi. Phakathi kwezinselele zangemuva kokuvuna ezifana nokubamba okushintshashintshayo, izintambo ezibandayo ezilinganiselwe, kanye namabanga amade ukuya emakethe, ubuchwepheshe bokomisa buhlala buyisisombululo esifanele nesishintshayo.
Izimiso Eziyisisekelo Zokomisa Imikhiqizo Yokudoba
Kalula nje, ukomisa inqubo yokudlulisa amanzi kusuka entweni ethile kuya endaweni ezungezile ngokuhwamuka. Ezinhlanzini nakweminye imikhiqizo yokudoba, amanzi atholakala ezicutshini zemisipha nasezikhaleni eziphakathi kwamaseli. Uma kusetshenziswa ukushisa, amanzi angaphezulu ayahwamuka kuqala. Amanzi asuka ngaphakathi abe esesakazeka aye phezulu bese ehwamuka. Izinga lokomisa lithonywa izinga lokushisa, umswakama ohlobene, izinga lokugeleza komoya, usayizi wezinto kanye nobukhulu, kanye nokwakheka (amafutha, amaprotheni, kanye nokuqukethwe usawoti).
Umqondo oyinhloko ekomiseni ukudla umsebenzi wamanzi (aw), isilinganiso sokutholakala kwamanzi okusabela kwamakhemikhali nokukhula kwamagciwane. Imikhiqizo yezinhlanzi ezomiswe ngokuphephile ngokuvamile ine-aw ephansi ngokwanele ukuvimbela ukukhula kwamagciwane abangela izifo, yize ezinye izikhunta kanye nemvubelo zingasinda uma ukupakisha nokugcina kunganele. Ngakho-ke, ukomisa okuphumelelayo kumele kuhambisane nemikhuba efanele yokuhlanzeka, ukupakisha, kanye nokugcina.
Indlela Yokomisa Yendabuko
1. Ukomisa ilanga
Ukomisa elangeni kuyindlela evame kakhulu ezindaweni eziningi zokudoba. Izinhlanzi ziyahlukaniswa noma zishiywe ziphelele, bese zihlelwa ezingodweni zomqalo, emanetheni, noma ezingodweni zokomisa, bese zomiswa elangeni. Izinzuzo zalo zifaka phakathi izindleko eziphansi, ubulula, kanye nokungabi nasidingo samandla esengeziwe.
Kodwa-ke, ukomisa ilanga kunemikhawulo eminingi: ukuncika esimweni sezulu, inqubo ende, ingozi yokungcoliswa uthuli, izinambuzane, nezilwane, kanye nekhwalithi yomkhiqizo engaguquki. Ngaphezu kwalokho, ukuchayeka elangeni eliqondile kanye nomoya-mpilo kungasheshisa ukubola kwamafutha, okuholela ephunga elibi, ikakhulukazi ezinhlanzini ezinamafutha njenge-tuna, i-mackerel, noma ama-sardine.
2. Ukomisa Intuthu (Ukuhlanza)
Ukubhema kuvame ukubhekwa njengohlobo lokomisa ngoba kuhilela ukunciphisa ukushisa nomswakama. Intuthu iphinde ibe namakhemikhali alwa namagciwane kanye nama-antioxidant angasiza ekulondolozweni. Umkhiqizo uthola ukunambitheka okuhlukile, umbala okhangayo, kanye nentengo yokuthengisa ephezulu.
Kodwa-ke, ukubhema okuvamile kunamandla okukhiqiza amakhemikhali ayingozi njenge-PAHs (polycyclic aromatic hydrocarbons) uma inqubo ingalawulwa. Ukulawula uhlobo lukaphethiloli, izinga lokushisa, kanye nebanga ukusuka emthonjeni wentuthu kubalulekile kumkhiqizo ophephile nongaguquguquki.
Ubuchwepheshe Bokomisa Besimanje
Intuthuko yezobuchwepheshe iholele ekuveleni kwezinhlelo zokomisa ezihlanzekile, ezisheshayo, nezilawulwa kakhulu. Ezinye zezindlela ezisetshenziswa kabanzi noma ezifundwe kabanzi ngemikhiqizo yokudoba zifaka:
1. Umshini Wokomisa Amakhabhinethi
Omisi bekhabhinethi basebenzisa igumbi elivaliwe elinomoya oshisayo ophoqelelwe. Izinga lokushisa nesikhathi kungalungiswa, okuholela emiphumeleni efanayo kakhulu kunokomiswa yilanga. Izinhlanzi zifakwa emathileyi, bese umoya oshisayo ujikeleziswa ngesivinini esithile. Le ndlela ifaneleka kakhulu emisebenzini emincane kuya kwephakathi.
Izinzuzo yilezi: ukuhlanzeka, ukungachemi nesimo sezulu, futhi kulula ukulawula. Izinzuzo yilezi: idinga ugesi noma uphethiloli, futhi uma izinga lokushisa liphezulu kakhulu, lingabangela ukuqina kwekhava, okwenza kube nzima ukuthi ingaphakathi lome.
2. Umshini Wokomisa Umhubhe
Ama-tunnel dryers asetshenziswa kabanzi ezimbonini ngenxa yekhono lawo lokusingatha inani elikhulu ngokuqhubekayo noma kancane kancane. Umkhiqizo uhamba emhubheni ngokugeleza komoya oshisayo okulawulwayo. Lolu hlelo lufanelekela ukukhiqizwa kwezinhlanzi ezomisiwe ezinosawoti, ukudla kwezinhlanzi okuthile okusekelwe ezithakweni ezomisiwe, noma imikhiqizo ye-fillet eyomisiwe.
Ukulawula inqubo okuhle kusiza ukugcina umbala, ukuthungwa, kanye nokomisa. Kodwa-ke, izindleko zokutshalwa kwezimali kokuqala kanye nokusebenza ziphakeme kunezinhlelo zamakhabhinethi.
3. I-Heat Pump Dryer
Omisi bepompo yokushisa basebenzisa uhlelo lwepompo yokushisa, olusebenzisa amandla amaningi ngoba ukushisa kungaphinde kusetshenziswe. Lobu buchwepheshe buhamba phambili ekomiseni emazingeni okushisa aphansi kodwa alawulwayo, ngaleyo ndlela kulondolozwa ikhwalithi yokuzwa nokondla. Emikhiqizweni yezinhlanzi, amazinga okushisa aphansi anganciphisa ukulimala kwamaprotheni futhi acindezele ukuminyana kwamafutha.
Imingcele eyinhloko izindleko zemishini kanye nezidingo zokulungisa eziyinkimbinkimbi kakhulu, ngakho-ke ukusetshenziswa kwayo kuvame kakhulu emabhizinisini amakhulu noma kumaphrojekthi okuhlola.
4. Umshini Wokomisa I-Vacuum
Ukomisa nge-vacuum kunciphisa ingcindezi, okuvumela amanzi ukuba aphele ekushiseni okuphansi. Lokhu kuwusizo emikhiqizweni ezwela ukushisa futhi kusiza ukugcina ukunambitheka nombala. Embonini yokudla, ukomisa nge-vacuum kuvame ukusetshenziselwa izithako zenani eliphezulu, kufaka phakathi eminye imikhiqizo yezinhlanzi yekhwalithi ephezulu.
Nakuba ikhwalithi yemiphumela iyinhle, izindleko zokutshalwa kwezimali kanye nokusebenza zibiza kakhulu, ngakho ukusetshenziswa kwayo kusalinganiselwe.
5. Ukomisa ngeqhwa
Ukomisa ngeqhwa kukhiqiza ikhwalithi engcono kakhulu ngoba amanzi asuswa nge-sublimation yeqhwa ngaphansi kwe-vacuum. Lokhu kulondoloza isakhiwo sezicubu, kuthuthukisa ukubuyiselwa kwamanzi emzimbeni, futhi kunciphisa ukulahleka kwezakhamzimba. Imikhiqizo eyomiswe ngeqhwa ilula kakhulu futhi inomswakama ophansi, okwenza ifanelekele ukudla okulungele ukudliwa, ukudla okukhethekile, noma izingxenye zezinto zokusetshenziswa zenani eliphezulu.
Kodwa-ke, le ndlela ibiza kakhulu futhi idinga amandla amaningi, ngakho-ke ivame ukusetshenziselwa imikhiqizo yekhwalithi ephezulu noma izidingo ezikhethekile.
6. Umshini Wokomisa Ilanga Olawulwayo
Njengokuthuthukisa ukomisa, ama-solar dryer asebenzisa ama-solar collectors kanye negumbi lokumisa elivaliwe. Umoya ufudunyezwa yi-collector bese ujikeleziswa ngomkhiqizo. Lolu hlelo lunciphisa ukungcola, lusheshisa inqubo, futhi luthuthukisa ukuhambisana. Lobu buchwepheshe bufanelekela izindawo ezisogwini ezinamandla aphezulu elanga futhi bungaklanyelwa imindeni kanye namaqembu okudoba.
Ukwelashwa Kwangaphambi Kokuthuthukisa Ikhwalithi
Ngaphambi kokomiswa, imikhiqizo yokudoba ivame ukulungiswa kusengaphambili ukuze kuthuthukiswe ukunambitheka, ukuthungwa kanye nokuphepha:
1. Usawoti (usawoti owomile noma usawoti): Usawoti wehlisa i-aw, uvimbela amagciwane, futhi unikeze ukunambitheka. Ukuhlushwa kanye nobude bosawoti kumele kulawulwe ukuze kugwenywe usawoti omningi noma ukuqina ngokweqile.
2. Ukuhlanza okufushane: Kwezinye izinto (isib. i-shrimp noma i-shellfish), ukuhlanza kunganciphisa umthwalo wamagciwane futhi kuvimbele ama-enzyme.
3. Ukucwilisa izinhlanzi nge-Antioxidant: Izithako ezifana nezingxenyana ezithile zemvelo noma izixazululo eziphephile ekudleni zingasiza ekunciphiseni ukubola kwezinhlanzi ezinamafutha.
4. Ukusika/ukufaka izingcezu: Ukwandisa indawo engaphezulu kusheshisa ukoma futhi kuthuthukise ukufana, kodwa kufanele kuqashelwe ukuhlanzeka ukuze kungandisi ukungcola.
Amapharamitha Ekhwalithi Nokuphepha Kwemikhiqizo Eyomile
Impumelelo yokomisa ayinqunywa kuphela "ukoma" okubonakalayo. Imingcele eminingana ebalulekile ifaka phakathi okuqukethwe komswakama wokugcina, umbala, iphunga, ukunambitheka, ukuthungwa, kanye nokuqina ngesikhathi sokugcina. Izingozi eziyinhloko zemikhiqizo yezinhlanzi ezomisiwe zifaka phakathi ukungcola kwamagciwane (kufaka phakathi isikhunta esikhiqiza i-mycotoxin), izinambuzane, kanye nokushiswa kwamafutha. Ngakho-ke, imikhuba yokuhlanzeka, ukusetshenziswa kwamashalofu avaliwe, kanye nokupakisha nokugcina umoya endaweni epholile, eyomile kuyizinto ezibalulekile.
Ukupakishwa kwesimanje okufana nepulasitiki evimbela umhwamuko, ukupakishwa kwe-vacuum, noma ukupakishwa kwe-atmosphere okuguquliwe (i-MAP) kungandisa isikhathi sokuphila kweshelufu futhi kulondolozwe iphunga. Kweminye imikhiqizo, ama-desiccant nawo ayengezwa ekupakishweni ukuze kuncishiswe umswakama.
Izinselele kanye Neziqondiso Zentuthuko
E-Indonesia, izinselele ezinkulu zokomisa imikhiqizo yokudoba ukuthembela ezindleleni zendabuko zokomisa ilanga, ukufinyelela kwamandla okulinganiselwe, kanye nokuntuleka kwezindinganiso zekhwalithi. Kodwa-ke, kunamathuba amakhulu entuthuko ngokusebenzisa imishini yokomisa yelanga ehlanzekile, imishini yokomisa yepompo yokushisa eyonga amandla, kanye nokuhlanganiswa kwezilawuli ezilula (izinzwa zokushisa nomswakama) ukuze kugcinwe imiphumela ehambisanayo.
Ucwaningo lugxile futhi ekomiseni okuxubile (inhlanganisela yelanga kanye nogesi/i-biomass), ukwenza ngcono ukuhamba komoya ukuze kome ngokulinganayo, kanye nokusebenzisa ubuchwepheshe obusezingeni eliphansi lemikhiqizo enenani eliphezulu. Ngokuthuthuka kwezobuchwepheshe, ukuqeqeshwa kwebhizinisi, kanye nokusekelwa kwenqubomgomo yekhwalithi, imikhiqizo yokudoba eyomisiwe ingaba nokuncintisana okukhulu kokubili ezimakethe zasekhaya kanye nakwezokuthumela kwamanye amazwe.
I-Penutup
Ubuchwepheshe bokomisa imikhiqizo yokudoba buyinsika ebalulekile ekulondolozweni, ekusatshalalisweni, kanye nokwengezwa kwenani lokudla kwasolwandle. Kusukela ekomiseni elangeni kuya ekomiseni okuqandisiwe, indlela ngayinye inezinzuzo kanye nemikhawulo okumele ilungiselelwe ubukhulu bebhizinisi, uhlobo lwempahla, imakethe eqondiwe, kanye nomthombo wamandla. Ngokusebenzisa izinqubo zokuhlanzeka, ukulawula imingcele yokomisa, kanye nokupakishwa okufanele, imikhiqizo yokudoba eyomisiwe ingaba impahla engcono kakhulu ephephile, esezingeni eliphezulu, futhi eqhubekayo.
