Sodium Alginate | 9005-38-3
Nkọwa ngwaahịa
Carrageenan bụ ọkwa nri a nụchara anụcha nke ọkara Kappa Karrageenan (E407a) nke ewepụtara na ahịhịa mmiri Eucheuma owu. Ọ na-etolite gels na-agbanwe agbanwe na ntinye zuru oke yana ọ na-enwe mmetụta nke ukwuu na potassium ion nke na-eme ka njirimara gelling ya dịkwuo mma. Carrageenan kwụsiri ike na etiti alkali. Carrageenan bụ ezinụlọ na-emekarị nke carbohydrates na-esi na ahịhịa na-acha uhie uhie na-amịpụta. A na-enwetakarị carrageenan a nụchara anụcha site na ngwọta site na mmiri ozuzo mmanya ma ọ bụ gelation potassium.
A na-asacha carrageenan a nụchara anụcha ma mesoo ahịhịa alkali. A naghị ewepụta carrageenan n'ime ahihia mmiri mana ọ ka dị na matriks mgbidi cell. A na-ahazi ngwaahịa ngwaahịa carrageenan nke azụmahịa maka inweta ezigbo gelling na ihe na-eme ka ọ sie ike. Site n'iji ngwaahịa carrageenan kwesịrị ekwesị, onye na-emepụta ihe nwere ike ịmepụta textures sitere na mmiri mmiri na-enweghị onwe ya na gels siri ike. Na mgbakwunye na ịnye ụdị ọkọlọtọ, COLORCOM na-arụkọ ọrụ na ndị ahịa iji mepụta ngwaahịa ọhụrụ na usoro maka ngwa ngwa.
Carrageenans bụ ụmụ irighiri ihe na-agbanwe agbanwe nke ukwuu nke na-akpụ akpụ akpụ. Nke a na-enye ha ike ịmepụta gels dị iche iche dị iche iche na ụlọ okpomọkụ. A na-eji ha eme ihe n'ọtụtụ ebe na nri na ụlọ ọrụ ndị ọzọ dị ka ndị na-eme ka ndị na-agba ume na ndị na-eme ka ahụ sie ike. Otu uru bụ na ha bụ pseudoplastic-ha na-adị mkpa n'okpuru nrụgide siri ike ma nwetaghachi viscosity ha ozugbo ewepụrụ nrụgide ahụ. Nke a pụtara na ọ dị mfe ịgbapụta ha, mana ha na-esi ike ọzọ ma emechaa.
Ndị carrageenan niile bụ polysaccharides dị arọ dị elu nke mejupụtara nkeji galactose ugboro ugboro na 3,6 anhydrogalactose (3,6-AG), ma sulfated na ndị na-abụghị nke a na-etinye. A na-ejikọta nkeji ndị ahụ site na ngbanwe alfa 1-3 na beta 1-4 glycosidic njikọ.
Enwere klas azụmahịa atọ nke carrageenan:
Kappa na-etolite gels siri ike, nke siri ike n'ihu ion potassium; ọ na-emeghachi omume na protein mmiri ara ehi. A na-enweta ya site na Kappaphycus alvarezii[3].Iota na-emepụta gels dị nro n'ihu ion calcium. A na-emepụta ya karịsịa site na Eucheuma denticulatum.Lambda adịghị jel, a na-ejikwa ya mee ka ngwaahịa mmiri ara ehi sie ike. Ebe kachasị mma bụ Gigartina sitere na South America. Ihe dị iche iche nke na-emetụta ihe onwunwe nke kappa, iota, na lambda carrageenan bụ ọnụ ọgụgụ na ọnọdụ nke ester sulfate otu na nkeji galactose ugboro ugboro. Ọkwa dị elu nke ester sulfate na-ebelata okpomọkụ solubility nke carrageenan ma na-emepụta gels ike dị ala, ma ọ bụ na-enye aka na mgbochi gel (lambda carrageenan).
Ọtụtụ ụdị algal na-acha uhie uhie na-emepụta ụdị carrageenan dị iche iche n'oge akụkọ ntolite ha. Dịka ọmụmaatụ, genus Gigartina na-emepụta tumadi kappa carrageenans n'oge egwuregwu gametophytic, na lambda carrageenans n'oge oge sporophytic ya. Lee Nhọrọ nke ọgbọ.
Ha niile na-agbaze na mmiri ọkụ, ma, na mmiri oyi, ọ bụ naanị ụdị lambda (na sodium salts nke abụọ ndị ọzọ) bụ soluble.
Mgbe a na-eji ya na ngwaahịa nri, carrageenan nwere ihe mgbakwunye EU E-nọmba E407 ma ọ bụ E407a mgbe ọ dị ka "eucheuma seaweed edozi", a na-ejikarị eme ihe dị ka emulsifier.
N'akụkụ ụfọdụ nke Scotland (ebe a maara ya dị ka (An) Cairgean na Scottish Gaelic) na Ireland (ụdị dị iche iche a na-eji bụ Chondrus Crispus mara na Irish Gaelic dị iche iche dị ka carraigín [obere nkume], fiadháin [ihe anụ ọhịa], clúimhín cait [cat's puff] , mathair an duilisg [nne nke ahịhịa mmiri], ceann donn [isi uhie]), a maara ya dị ka Carrageen Moss a na-esi ya na mmiri ara ehi ma gbanye ya, tupu agbakwunye sugar na ihe ndị ọzọ dị ka vanilla, cinnamon, brandi, ma ọ bụ whiskey. Ngwaahịa ikpeazụ bụ ụdị jelii yiri pannacotta, tapioca, ma ọ bụ blancmange.
Mgbe iota carrageenan jikọtara ya na sodium stearoyl lactylate (SSL), a na-emepụta mmetụta synergistic, na-enye ohere maka ịkwado na emulsifying na-enwetaghị ụdị ọ bụla nke carrageenan (kappa / lambda) ma ọ bụ na emulsifiers ndị ọzọ (mono na diglycerides, wdg). SSL jikọtara ya na iota carrageenan, nwere ike ịmepụta emulsions n'okpuru ọnọdụ ọkụ na oyi na-eji ma ọ bụ ihe oriri ma ọ bụ abụba anụmanụ.
Na United States, carrageenan bụ ihe dị na mmiri ara ehi soy nke a na-ere n'okpuru akara nke Food Whole.
Nkọwapụta
| NGWA | Ọkọlọtọ |
| Ọdịdị | Ìhè na ntụ ntụ n'efu |
| Ọnwụ na ihicha | max. nke 12% |
| PH | 8-11 |
| Gel ike mmiri gel (1.5%,0.2kcl) | > 450 g / cm2 |
| As | max. nke 1 mg / kg |
| Zn | max. nke 50 mg / kg |
| Pb | max. nke 1 mg / kg |
| C d | max. nke 0.1 mg / kg |
| Hg | max. nke 0.03 mg / kg |
| Ngụkọta ọnụ ọgụgụ efere | max. nke 10,000 cfu/g |
| Mkpokọta mesophilic aerobic agbanwe | max. nke 5,000 cfu/g |
| Gel ike mmiri gel (1.5%,0.2kcl) | > 450 g / cm2 |
| As | max. nke 1 mg / kg |
| Zn | max. nke 50 mg / kg |
| Pb | max. nke 1 mg / kg |
| C d | max. nke 0.1 mg / kg |
| Hg | max. nke 0.03 mg / kg |
| Ngụkọta ọnụ ọgụgụ efere | max. nke 10,000 cfu/g |
| Mkpokọta mesophilic aerobic agbanwe | max. nke 5,000 cfu/g |
| Gel ike mmiri gel (1.5%,0.2kcl) | > 450 g / cm2 |
