Natural pH Indicators
Pasi pesimba rekuchinja kwekuita kwezvakatipoteredza, kwete chete makomisheni anoshandiswa mumarabhoritari sezviratidzo zvinowana mavara akasiyana. Boka rakaenzana rakawanda rinoumbwa nezvinhu zviri muzvigadzirwa zvepanyama. Mumiyedzo yakati wandei, isu tinoyedza maitiro epH zviratidzo munzvimbo yedu.
Zvekuyedza, mhinduro dzinoverengeka dzine pH dzakasiyana dzichadikanwa. Anogona kuwanikwa nekunyungudutsa hydrochloric acid neHCl (pH 3-4% mhinduro ndeye 0) uye sodium hydroxide solution NaOH (4% solution ine pH ye14). Mvura yakasvibiswa, yatichashandisawo, ine pH ye7 (neutral). Muchidzidzo, tichashandisa beetroot juice, red cabbage juice, blueberry juice uye tea infusion.
Mumachubhu ekuyedza ane mhinduro dzakagadzirirwa uye mvura yakasvibiswa, donhedza muto mutsvuku webeet (mufananidzo 1) Mune acidic mhinduro, inowana yakanyanya ruvara rutsvuku, mune isina kwayakarerekera uye alkaline mhinduro, ruvara rwunova rwebrown, richishanduka kuita yero tint (mufananidzo 2) Muvara wekupedzisira ndiwo mugumisiro wekuparara kwedhayi munzvimbo ine alkaline yakasimba. Chinhu chinokonzera kushanduka kwebeetroot muto ndeye betanin. Acidification ye borscht kana beetroot saladhi ndeye "chip" yekubika inopa ndiro iyo ruvara runonakidza.
Nenzira imwecheteyo, edza tsvuku kabichi juice (mufananidzo 3) Mumushonga weasiti, muto unova wakatsvuka wakajeka, mune imwe sarudzo inoshanduka inova chiedza chepepuru, uye mune alkaline solution inova yakasvibirira. Uyewo munyaya iyi, chigadziko chakasimba chinoparadza dhayi - mvura iri mu test tube inova yero (mufananidzo 4) Zvinhu zvinoshandura ruvara ndeye anthocyanins. Kumwaya red cabbage saladhi nemuto weremoni kunopa kutaridzika kunofadza.
Chimwe chiedzo chinoda muto weblueberry (mufananidzo 5) Ruvara dzvuku-ruvara runoshanduka kuita rutsvuku mune ine acidic medium, kusvibira mune alkaline medium, uye kune yero mune yakasimba alkaline medium (kuora kwedhayi) (mufananidzo 6) Pano, zvakare, anthocyanins ane basa rekushandura ruvara rwejusi.
Tea infusion inogonawo kushandiswa semhinduro pH chiratidzo (mufananidzo 7) Muhupo hweasidhi, ruvara runova uswa hweyero, mune isina kwayakarerekera svikiro rinova rakapfava, uye mune alkaline svikiro rinova dema dema (mufananidzo 8) Tannin derivatives ine basa rekushandura ruvara rweiyo infusion, ichipa tii hunhu hwayo hwekunaka. Kuwedzerwa kwejisi remonamu kunoita kuti ruvara rwe infusion ruve nyore.
Izvo zvakakoshawo kuzvimiririra kuitisa bvunzo nezvimwe zviratidziro zvechisikigo - akawanda majusi uye decoctions yemiti inoshandura ruvara nekuda kweasidhi kana alkalization yezvakatipoteredza.
Zvione pavhidhiyo:
Natural pH Indicators
