Usoro Nnụcha mmanụ oriri: Mmiri Degumming
Nkọwa ngwaahịa
Usoro degumming n'ime ụlọ na-emezi mmanụ bụ iji ụzọ anụ ahụ ma ọ bụ kemịkalụ wepụ ihe adịghị ọcha chịngọm na mmanụ, ọ bụkwa ọkwa mbụ na nhazi mmanụ / nchacha mmanụ.Mgbe ịpịchara na ihe mgbaze sitere na mmanụ mmanụ, mmanụ ahụ na-enwekarị triglycerides na ole na ole na-abụghị triglyceride.Ngwakọta na-abụghị triglyceride gụnyere phospholipids, protein, phlegmatic na sugar ga-emeghachi omume na triglycerides iji mepụta colloid, nke a maara dị ka adịghị ọcha chịngọm.
Ihe na-adịghị mma chịngọm ọ bụghị nanị na-emetụta nkwụsi ike nke mmanụ kamakwa ọ na-emetụta usoro nhazi nke nhazi mmanụ na nhazi miri emi.Dịka ọmụmaatụ, mmanụ na-abụghị degummed dị mfe ịmepụta mmanụ emulsified na usoro nhazi nke alkaline, si otú ahụ na-abawanye ihe isi ike nke ịrụ ọrụ, nkwụsị mmanụ mmanụ, na ihe oriri na-enye aka;na usoro nchacha, mmanụ na-abụghị degummed ga-eme ka oriri nke adsorbent dịkwuo elu ma belata ịdị irè nke discoloring.Ya mere, iwepụ chịngọm dị mkpa dị ka nzọụkwụ mbụ n'ime usoro nchacha mmanụ tupu emebisị mmanụ, decolorization mmanụ, na deodorization mmanụ.
The kpọmkwem ụzọ nke degumming gụnyere hydrated degumming (mmiri degumming), acid refining degumming, alkali refining usoro, adsorption usoro, electropolymerization na thermal polymerization usoro.N'ime usoro nhazi mmanụ a na-eri nri, usoro a na-ejikarị eme ihe bụ hydrated degumming, nke nwere ike wepụ phospholipids hydratable na ụfọdụ phospholipids na-abụghị hydrate, ebe ndị fọdụrụ na-adịghị hydrate phospholipids kwesịrị iwepụ site na acid refining degumming.
1. Ụkpụrụ na-arụ ọrụ nke hydrated degumming (mmiri degumming)
Mmanụ crude sitere na usoro mmịpụta ihe mgbaze nwere mmiri soluble mmiri, nke kachasị nke nwere phospholipids, bụ nke a ga-ewepụ na mmanụ ahụ iji mee ka mmiri ozuzo kacha nta na idozi n'oge njem mmanụ na nchekwa ogologo oge.Achịcha chịngọm dị ka phospholipids nwere njirimara nke hydrophilic.Nke mbụ, ị nwere ike ịkpali ma tinye ụfọdụ mmiri ọkụ ma ọ bụ mmiri ọkụ electrolyte dị ka nnu & phosphoric acid na mmanụ ọkụ na-ekpo ọkụ.Mgbe oge mmeghachi omume ụfọdụ gasịrị, a ga-ejikọta ihe ndị na-adịghị ọcha chịngọm, belata ma wepụ ya na mmanụ.N'ime usoro nsị nke hydrated, ihe adịghị ọcha bụ nke kachasị phospholipid, yana protein ole na ole, glyceryl diglyceride, na mucilage.Kedu ihe ọzọ, enwere ike ịhazi chịngọm ndị a amịpụtara ka ọ bụrụ lecithin maka nri, nri anụmanụ ma ọ bụ maka ojiji teknụzụ.
2. Usoro nke hydrated degumming (mmiri degumming)
Usoro nkwụsị mmiri na-agụnye ịgbakwunye mmiri na mmanụ crude, na-eme ka mmiri na-edozi mmiri, wee wepụ ọtụtụ n'ime ha site na nkewa centrifugal.The ìhè na-adọ mgbe centrifugal nkewa bụ crude degummed mmanụ, na arọ agba mgbe centrifugal nkewa bụ a Nchikota mmiri, mmiri soluble components na entrained mmanụ, mkpokọta zoro aka dị ka "gums".A na-akpọnwụ mmanụ crude ma mee ka ọ dị jụụ tupu ebuga ya na nchekwa.A na-atụgharị chịngọm azụ na nri.
N'ime ụlọ ọrụ na-edozi mmanụ, igwe na-eme ka mmiri na-ekpo ọkụ nwere ike iji igwe deacidification mmanụ, igwe decolorization, na igwe deodorizing, na igwe ndị a bụ ihe mejupụtara ahịrị mmepụta mmanụ na-eme ka mmanụ dị ọcha.A na-ekewa ahịrị na-eme ka ọ dị ọcha n'ụdị na-adịghị akwụsị akwụsị, ụdị nke na-aga n'ihu na nke na-aga n'ihu n'ụzọ zuru oke.Ndị ahịa nwere ike ịhọrọ ụdị dị ka ikike mmepụta ha chọrọ: ụlọ ọrụ mmepụta ihe nke nwere ikike mmepụta nke 1-10t kwa ụbọchị kwesịrị ekwesị maka iji ụdị ngwá ọrụ oge, 20-50t kwa ụbọchị ụlọ ọrụ dị mma maka iji ụdị ngwá ọrụ na-aga n'ihu, na-emepụta ihe. ihe karịrị 50t kwa ụbọchị dabara maka iji ụdị akụrụngwa na-aga n'ihu zuru oke.Ụdị nke a na-ejikarị eme ihe bụ ahịrị mmepụta degumming hydrated na-anọpụ iche.
Nka nka
Ihe ndị bụ isi nke hydrated degumming (mmiri degumming)
3.1 Mpịakọta mmiri agbakwunyere
(1) Mmetụta nke mmiri agbakwunyere na flocculation: Ọnụ mmiri kwesịrị ekwesị nwere ike ịmepụta usoro liposome multi-layer kwụsiri ike.Mmiri na-ezughị ezu ga-eduga n'ịgbasa mmiri na-adịghị agwụ agwụ na colloidal flocculation ọjọọ;Mmiri buru ibu na-eme ka emulsification mmiri-mmanụ, nke siri ike ikewapụ adịghị ọcha na mmanụ.
(2) Mmekọrịta dị n'etiti ọdịnaya mmiri agbakwunyere (W) na ọdịnaya glum (G) na ọnọdụ okpomọkụ dị iche iche:
obere okpomọkụ hydration (20 ~ 30 ℃) | W= (0.5~1) G |
hydration nke ọkara okpomọkụ (60 ~ 65 ℃) | W= (2-3) G |
elu okpomọkụ hydration (85 ~ 95 ℃) | W= (3-3.5) G |
(3) Nnwale nlele: Enwere ike ikpebi oke mmiri agbakwunyere kwesịrị ekwesị site na nlele nlele.
3.2 Ọnọdụ okpomọkụ
Ọnọdụ okpomọkụ a na-arụ ọrụ na-adaba na okpomọkụ dị oke egwu (maka flocculation ka mma, okpomọkụ ọrụ nwere ike ịdị elu karịa okpomọkụ dị oke egwu).Na okpomọkụ nke ọrụ ahụ ga-emetụta ọnụ ọgụgụ nke mmiri agbakwunyere mgbe okpomọkụ dị elu, oke mmiri dị ukwuu, ma ọ bụghị ya, ọ dị ntakịrị.
3.3 Ike nke ngwakọta hydration na oge mmeghachi omume
(1) Inhomogeneous hydration: Gum flocculation bụ mmeghachi omume dị iche iche na interface mmekọrịta.Iji mee ka steeti emulsion mmanụ kwụsiri ike, ngwakọta n'ibu na-agwakọta ngwakọta nwere ike ime ka ụmụ irighiri mmiri ahụ gbasasịa n'ụzọ zuru ezu, ngwakọta n'ibu chọrọ ka ọ sie ike karị mgbe ọnụọgụ mmiri agbakwunyere buru ibu na okpomọkụ dị ala.
(2) Ike nke ngwakọta hydration: Mgbe ị na-agwakọta mmanụ na mmiri, ọsọ na-akpali akpali bụ 60 r / min.Na oge nke flocculation na-amụba, mkpali ọsọ bụ 30 r / min.Oge mmeghachi omume nke ịgwakọta hydration bụ ihe dịka nkeji iri atọ.
3.4 Electrolytes
(1) Ụdị electrolytes dị iche iche: Nnu, alum, sodium silicate, phosphoric acid, citric acid na dilute sodium hydroxide solution.
(2) Isi ọrụ nke electrolyte:
a.Electrolytes nwere ike iwepu ụfọdụ ụgwọ eletrik nke ụmụ irighiri ihe colloidal ma kwalite ụmụ irighiri ihe colloidal na sedimentate.
b.Iji tọghata phospholipids na-abụghị hydrated ka ọ bụrụ phospholipids hydrated.
c.Alum: flocculant enyemaka.Alum nwere ike itinye pigmenti na mmanụ.
d.Iji chelate na ion ígwè ma wepụ ha.
e.Iji kwalite colloidal flocculation nso ma belata ọdịnaya mmanụ nke flocs.
3.5 Ihe ndị ọzọ
(1) Mmanụ na-adị n'otu: Tupu mmiri amịkpọ, ekwesịrị ịgbanye mmanụ crude ahụ nke ọma ka enwere ike kesaa colloid n'otu n'otu.
(2) okpomọkụ nke mmiri agbakwunyere: Mgbe hydration, okpomọkụ nke ịgbakwunye mmiri kwesịrị hà nhata ma ọ bụ dịtụ elu karịa okpomọkụ mmanụ.
(3) agbakwunyere ogo mmiri
(4) Nkwụsi ike ọrụ
N'ikwu okwu n'ozuzu, a na-ekpebi teknuzu teknụzụ nke usoro degumming dị ka mma mmanụ si dị, na ihe dị iche iche nke mmanụ dị iche iche na usoro nkwụsịtụ dị iche iche.Ọ bụrụ na ị nwere mmasị n'ịnụcha mmanụ, biko kpọtụrụ anyị na ajụjụ gị ma ọ bụ echiche gị.Anyị ga-ahazi ndị injinia ọkachamara anyị ka ha hazie ahịrị mmanụ kwesịrị ekwesị nke ejiri akụrụngwa na-edozi mmanụ kwekọrọ maka gị.