I-Preservatives enye yeentlobo zezongezo zokutya. Ngaphambili, zonke izongezo zokutya zazigqitywe ngokupheleleyo kwiibhile zomkhiqizo. Nangona kunjalo, ngaphezu kwexesha (kufuneka sicinge ukuba xa inani labo liqala ukuphuma esikolweni), kwagqitywa ukuba kufuneka ibhalwe phantsi. Ngoko kwakukho ingozi "E-shki", apho "E" - ukusuka kumgangatho weYurophu. Umthetho wamukelwa ngo-1953, ugcine ukubonakala kwawo kwasekuqaleni nanamhlanje. Ngayinye "i-e-bhinethi" inenombolo yayo siqu, ebonisa inqobo yokulondoloza.
Injongo yezilondolozo ngokukodwa kukuba ukwandisa ubomi be-shelf yomkhiqizo. Ukwenza oku, kufuneka usebenze kule mveliso ngendlela ekhethekileyo-ukuba uyenze inzalo. Ngendlela yokusebenza, izilondolozo zinempumelelo ngokuthelekiswa ne-antibiotiki-zombini zibulala ama-microorganms. Ngenxa yoko, umkhiqizo wokutya ukhuselwe ekuveleni ngaphakathi kwendawo yefungi, i-bacteriophages, i-microbes. Kodwa izilondolozo, ukuba zenze ibhizinisi, zibaleke kwimveliso - sizitya kwaye zizonwabele kunye nezitya zakho ezizithandayo. Ekugqibeleni, zichaphazela nomzimba wethu - bulala kancane, kuseli. Enyanisweni, sineeseli ezingaphezulu kunezinto ezincinci ezine-celled, ngoko sisinda, kodwa azinjalo. Kodwa, maye, oku akupheli apho. I-Preservatives iqokelela emzimbeni ngendlela ye-carcinogens, kwaye, xa iqokelelwe kwindleko efunekayo, iya kubangela isifo esesabekayo (umhlaza, umzekelo). Kungenxa yoko, zizinyango ezikhuselekileyo.
Kodwa umzimba wethu awusisilumko. Uyazi indlela yokuzikhusela. Ukukhusela okusemgangathweni kumaziko okulondolozwa yi-hydrochloric acid ephakathi kwesisu, nangona emva kokudlula kwimeko yesisu, ezinye izilondolozo zisaphila.
Izongezo ezinobungozi kakhulu
Izongezo ezinobungozi kakhulu kwimveliso ziyi-preservatives kunye nama-antioxidants. Benza isenzo esifanayo: ukuba isilondolozi sterilizes and prolongs the shelf life, i-antioxidant ikhusela i-oyile kwi-rancidity, discoloration, njl.
Amanani okulondolozwayo aboniswayo - ukusuka ku-Е200 ukuya ku-Е299, ama-antioxidants - ukusuka ku-Е300 ukuya ku-Е399.
I-antioxidant kuphela ekhuselekile yomsindo ngu-E363, ngamanye amagama, i-succinic acid. Yongezwa kwiidyuli, isobho, iziphuzo ezomileyo. Ukubuza ukuba iziphi izigulane eziyingozi ziyinto engenamsebenzi, kuba zonke zibangela isifo seentsholongwane zokugaya ukutya, ukugula kunye nomhlaza.
Eyona nto ixhaphakileyo kwihlabathi kwaye ngexesha elifanayo izilondolozo ezinobungozi kakhulu zi:
- nitric sodium - Е250;
- nitrate ye-sodium - Е251;
- i-nitrate ye-potassium - Е252.
Ezi zilondolozo ozifumanayo kuyo nayiphina imveliso yenyama ye-sausage kunye nakweentlanzi kunye neentlanzi. Inyaniso kukuba emva kokupheka, ukuxuba inyama ye-sausage, inyama ilahlekelwa ngumbala okhangayo, ibe yimvi. Ngoko ke, enye yezinto ezintathu zokulondolozwa (okanye zonke ezintathu) zongezwa ukuyifaka umboleki.
Ingozi ye-nitrate yukuba xa ingena emzimbeni womntu, yakha i-nitrites eyingozi, kwaye ke, i-nitrosamines. Konke oku kuyenzeka xa isongezelelo singena kwizinto ezibuthathaka-ezichaphazeleka yi- cholecystitis , isifo sesifo kunye ne-dysbacteriosis.