Mun amsa tambayoyi. Me Apple duhu a yanke?

Duniya kewaye da mu ne mai ban mamaki. Kuma idan yara fahimta shi da sauƙi, tare da shekaru zama saba wa abubuwa da yawa da kuma manta game da shi a amince. A sakamakon haka, mafi sauki baby tambayoyi iya sa ya fara tasawa a tsaya cak. Ga misali: "Me ya sa wani apple duhu a yanke?" Wannan tsari ne sosai m, amma ba a matsayin mai sauki kamar yadda alama da farko kallo. Bayan duk, daban-daban duhu apples a hanyoyi daban-daban, da kuma wasu ba su yi duhu.

Dispelling da camfin

Mafi sau da yawa, a lokacin da aka tambaye game dalilin da ya sa Apple samun duhu a yanke, da suka ji cewa shi ne saboda da dauke baƙin ƙarfe. Wani makaranta shakka daga sunadarai ne da aka sani cewa baƙin ƙarfe yana da wani valence (ko hadawan abu da iskar shaka jihar) +2 +3 kuma. Saboda haka, a cikin apples, shi yana da farko mataki na hadawan abu da iskar shaka. Duk da haka, bayan yankan fara rayayye zo a cikin lamba tare da iska, wanda ya ƙunshi oxygen. A sakamakon haka, da na baƙin ƙarfe ne oxidized zuwa 3 digiri, game da shi ulla wannan oxide. Sai dai itace cewa wani apple wani "tsatsa". Kuma da launi na'am da shi.

Duk da haka, wani sunadarai sani cewa shi ne, ba. Daya apple nauyin game 150-160 grams ƙunshi kawai 3.4 milligrams na baƙin ƙarfe. Shin wannan adadin isa ya ganimar da look na dukan 'ya'yan? Hakika ba. A gaskiya, shi ne ke da alhakin wani mabanbanta al'amarin. Bayan wannan zai faru, da kuma pears, da ayaba. Amma ba su da irin wannan yawan na baƙin ƙarfe.

da gaskiya haddasawa

Saboda haka me ya sa duhu a yanke apple, idan akwai kusan baƙin ƙarfe ba? Bayan 'ya'yan lalacewar auku a yawan sinadaran halayen, saboda wanda ya hasarar da marketability. Amma idan ka gano sarkar, za ka iya har yanzu fahimtar gaskiya dalili.

Kamar yadda ka sani, apples, kamar sauran 'ya'yan itatuwa, su ne arziki a antioxidants. Chemically su suna kira zuwa ga rukuni na polyphenols. Bã su da sunaye daban-daban, amma sun kasance daya - wannan fili shi ne daban-daban phenols (ba za a rikita batun tare da guba). Hakika, wannan a kanta ne abu ba zai tasiri a launi na wani apple, kamar yadda shi ne kawai wani colorless. Amma har yanzu yana dauke da polyphenol oxidase enzyme, bayan da wani lalacewa fara rayayye hulɗa tare da polyphenols. Babban mai kara kuzari dauki oxygen. Kuma a sakamakon, a apples a manyan lambobin kafa quinone, kuma ya - mai karfi oxidizer. Wannan ne daidai amsar tambayar dalilin da ya sa Apple samun duhu a yanke.

Ta yaya za a magance?

Hakika, wannan dukiya da yawa apples ba na son. Fruit sauri rasa wani m bayyanar, kuma ko da sabo sliced kawai 'yan mintoci fara duba ba kyau sosai. Ke dafa sun dogon fito da wata hanya ta magance wannan shortcoming. Yana isa ya yanke goga lemun tsami kwasfa da yayyafa tare da lemun tsami ruwan 'ya'yan itace. Wani embodiment - aka saukar zuwa 1-2 minti 'ya'yan citric acid bayani. A sakamakon haka, da apple ba ya yi duhu a yanke.

Domin apple ruwan 'ya'yan itace buga wani zaɓi. Don yin wannan, kawai pasteurized for 20-30 minti at 70-80 digiri. A sakamakon haka, shi halaka polyphenol oxidase. Saboda haka, ba zai yiwu ka fara aiwatar da hadawan abu da iskar shaka a manufa. Ga dukan apples wannan hanya, da rashin alheri, ba ya shige.

A kimiyya m

Babu shakka cewa, ta cire daya daga cikin uku da aka gyara na dauki, shi ne zai yiwu don tabbatar da cewa apples ba ta duhunta. Abin baƙin ciki, ba shi yiwuwa su rabu da polyphenols. Bugu da kari, an yi imani da cewa suna da amfani ga kwayoyin. Kuma abu na farko da cewa, an cimma nasarar - ware daga na dauki oxygen. Domin wannan apples mai rufi da musamman abu, kamar kakin (bisa ga kasa da kasa da misali da aka alama E901-E913). Duk da haka, kafin yin amfani da irin wannan 'ya'yan itace a abinci shafi ne ake so kurkura.

Amma kimiyya ba tsaya har yanzu. Bayan duk, shi ya dade da aka sani da ya sa Apple samun duhu a yanke. Gabatar da wani sabon genetically modified-iri da ya tabbatar da cewa ta hanyar cire enzyme-oxidant za a iya samu kawai "madawwami" apples. Cikakken bayani ga manyan kantunan da kuma gidajen cin abinci. Musamman cewa shi ya ɗauki kawai toshe wasu kwayoyin halittu. An yi imani da cewa wannan fasaha shi ne mafi m.