Methylcellulose chinhu chinowanzo shandiswa pakudya. Chinogadzirwa ne cellulose yechisikigo kuburikidza nekuchinja kwemakemikari. Chine hunhu hwakanaka hwekugadzikana, kukora uye kukora uye chinoshandiswa zvakanyanya muindasitiri yechikafu. Sechinhu chakagadziriswazve, kuchengetedzeka kwayo muchikafu kwagara kuri chinhu chinonetsa.
1. Hunhu uye mabasa emethylcellulose
Maumbirwo emamorekuru emethylcellulose akavakirwa paβ-1,4-glucose unit, iyo inoumbwa nekutsiva mamwe mapoka ehydroxyl nemapoka emethoxy. Inonyungudika mumvura inotonhora uye inogona kugadzira gel inodzoserwa pasi pemamwe mamiriro ezvinhu. Ine hunyoro hwakanaka, emulsification, suspension, kugadzikana uye hunhu hwekuchengetedza mvura. Mabasa aya anoita kuti ishandiswe zvakanyanya muchingwa, makeke, zvinwiwa, zvigadzirwa zvemukaka, chikafu chakaomeswa nechando nedzimwe nzvimbo. Semuenzaniso, inogona kuvandudza magadzirirwo emukanyiwa uye kunonoka kukwegura; muzvikafu zvakaomeswa nechando, inogona kuvandudza kuramba kwechando-kunyunguduka.
Pasinei nemabasa ayo akasiyana-siyana, methylcellulose pachayo hainyudzwe kana kugayiwa mumuviri wemunhu. Mushure mekumedzwa, inonyanya kuburitswa kuburikidza nenzira yekugaya isina kuumbwa, izvo zvinoita kuti kushanda kwayo zvakananga mumuviri wemunhu kuite sekushoma. Zvisinei, hunhu uhwu hwakaitawo kuti vanhu vatye kuti kuidya kwenguva refu kunogona kukanganisa hutano hwemudumbu.
2. Kuongorora chepfu uye zvidzidzo zvekuchengetedza
Zvidzidzo zvakawanda zvechepfu zvakaratidza kuti methylcellulose ine hutano hwakanaka uye ine chepfu shoma. Zvakabuda muongororo dzechepfu dzakaratidza kuti LD50 yayo (pakati pehuwandu hwechikafu chinouraya) yaive yakakwira zvakanyanya kupfuura huwandu hunoshandiswa muzvikafu zvechinyakare, zvichiratidza kuchengetedzeka kwakanyanya. Muongororo dzechepfu dzenguva refu, makonzo, mbeva nedzimwe mhuka hadzina kuratidza maitiro akashata akakura pasi pekudyiswa kwenguva refu nedosi yakawanda, kusanganisira njodzi dzakadai sekenza, teratogenicity uye chepfu yekubereka.
Pamusoro pezvo, kushanda kwemethylcellulose muura hwemunhu kwakadzidzwawo zvakanyanya. Nekuti haigayiwe uye hainyudzwe, methylcellulose inogona kuwedzera huwandu hwetsvina, kukurudzira peristalsis yemudumbu, uye ine mabhenefiti akati wandei mukuderedza kuvimbiwa. Panguva imwe chete, haiviriswi nezvirimwa zvemudumbu, zvichideredza njodzi yekudzikira kwedumbu kana kurwadziwa mudumbu.
3. Mitemo netsika
Kushandiswa kwemethylcellulose sechikafu chinowedzerwa kunodzorwa pasi rose. Sekureva kweongororo yeJoint Expert Committee on Food Additives (JECFA) pasi peFood and Agriculture Organization yeUnited Nations (FAO) neWorld Health Organization (WHO), kudya kwemethylcellulose kunotenderwa zuva nezuva (ADI) hakuna "kutsanangurwa", zvichiratidza kuti zvakachengeteka kushandisa mukati memuyero unokurudzirwa.
MuUnited States, methylcellulose yakanyorwa sechinhu chinozivikanwa sechinochengetedza (GRAS) neUS Food and Drug Administration (FDA). MuEuropean Union, inoiswa muchikamu cheE461, uye kushandiswa kwayo kwakanyanya muzvikafu zvakasiyana-siyana kwakanyatsotsanangurwa. MuChina, kushandiswa kwemethylcellulose kunodzorwawo ne "National Food Safety Standard Food Additive Usage Standard" (GB 2760), iyo inoda kudzora zvakanyanya mwero zvichienderana nerudzi rwechikafu.
4. Zvaunofanira kufunga nezvekuchengetedza mukushandisa zvinhu zvinoshanda
Kunyangwe kuchengetedzeka kwe methylcellulose kwakanyanya, kushandiswa kwayo mukudya kuchiri kufanira kutarisisa zvinhu zvinotevera:
Chipimo: Kuwedzera chikafu zvakanyanya kunogona kuchinja magadzirirwo echikafu uye kukanganisa kunaka kwemanzwiro; panguva imwe chete, kudya zvinhu zvine fiber yakawanda kunogona kukonzera kuzvimba kana kusagadzikana kwekugaya chikafu.
Vanhu vakatarirwa: Kune vanhu vane masero asina simba emudumbu (senge vakwegura kana vana vadiki), methylcellulose yakawanda inogona kukonzera kusagadzikana kwekugaya chikafu kwenguva pfupi, saka inofanira kusarudzwa nekungwarira.
Kudyidzana nezvimwe zvinhu: Mune mamwe maformula ezvekudya, methylcellulose inogona kuva nemhedzisiro inoshanda pamwe chete nezvimwe zvinhu zvinowedzerwa kana zvinhu, uye mhedzisiro yazvo pamwe chete inofanira kufungwa nezvayo.
5. Pfupiso uye Maonero
Kazhinji,methylcellulose chinhu chinowedzera chikafu chakachengeteka uye chinoshanda chisingazokonzere kukuvadza hutano hwevanhu mukati menguva yakakodzera yekushandisa. Hunhu hwayo husinganyurwe hunoita kuti ive yakasimba mudumbu uye inogona kuunza mamwe mabhenefiti ehutano. Zvisinei, kuti ive nechokwadi chekuti yakachengeteka mukushandiswa kwayo kwenguva refu, zvakakosha kuramba uchiteerera zvidzidzo zvine chepfu uye data rekushandisa rinoshanda, kunyanya kukanganisa kwayo pamapoka akasiyana.
Nekuvandudzwa kweindasitiri yezvekudya uye kuvandudzwa kwekuda kwevatengi kwemhando yechikafu, huwandu hwekushandiswa kwemethylcellulose hunogona kuwedzerwa. Mune ramangwana, mashandisirwo matsva anofanira kuongororwa pachinangwa chekuona kuti chikafu chakachengeteka kuti chiwedzere kukosha kuindasitiri yezvekudya.
Nguva yekutumira: Zvita-21-2024