O le paluga pH ose fa'ailoga autu e pulea lelei i le gaosiga o falaoa. pH mita feaveai, ma le ±0.1 pH sa'o le sa'o ma le lautele o le 3.0-10.0 pH, ua avea ma meafaigaluega autu mo le mata'ituina o le faagasologa atoa o le faiga o falaoa faaonaponei. O a latou fa'aoga autu o lo'o fa'aalia i vaega autu e lua: mata'ituina lelei o le fa'afefeteina ma le asiasia o mea mata'utia o lo'o o'o mai.
I le taimi o le fa'afefeteina, o le paluga pH na muamua fa'aitiitia mai le 6.2-6.4 a'o fa'agasolo le metabolism microbial, mulimuli ane fa'amautu i le 4.4-4.8. E mafai e le au faifalaoa ona mata'ituina lelei le gaioiga o le microbial i vaega e tolu: 0 itula, 1.5 itula, ma le 3 itula. Afai e pa'ū le pH i lalo ole 4.5, e tatau ona amata vave le faʻamaonia e puipuia ai le oona tele; afai e le pa'ū i lalo ole 5.0 i totonu ole 2 itula, e tatau ona faʻateleina le vevela o le faʻafefete ile 2-3 tikeri poʻo le 0.5% le fefete e tatau ona faʻaopopo. O faʻamatalaga faʻataʻitaʻiga o loʻo faʻaalia ai ina ua maeʻa ona faʻaalia le mataʻituina o le pH, o le paluga o le paluga o le paʻu o le toilalo na faʻaitiitia mai le 12% i le 3%, ma le faʻamautu o fua na faʻatupulaia i le 40%.
In the raw material inspection stage, the pH of flour needs to be controlled between 6.0 and 6.5 (>6.8 e aʻafia ai le faʻavaeina o le gluten,<5.8 easily leads to browning), and the production water needs to be maintained in a neutral range of 6.8-7.2 (>7.5 taofia amylase,<6.5 accelerates acidification). After implementing raw material pH pre-inspection, a chain central factory saw a 58% reduction in batch rework rate and an annual reduction in raw material loss of approximately 12 tons. This equipment, through full-process data support, effectively improved the stability and quality consistency of bread production.
O mita pH o loʻo i ai se sao e le mafai ona suia i le faʻaleleia atili o le faiga o le taoina ma le atinaʻeina o oloa fou. E mafai e tagata suʻesuʻe ona faʻatuina se faʻataʻitaʻiga faʻataʻitaʻiga i le va o le acidity ma uiga o oloa e ala i le suʻesuʻeina o suiga o le pH o fua faʻatatau. Mo se faʻataʻitaʻiga, i le atinaʻeina o falaoa vaivai, pe a faʻamautu le paluga pH i le 5.0 -5.2, o le voluma faʻapitoa o oloa e oʻo atu i le 3.8 ml/g, ma o le porosity i totonu e faʻateleina e 25%; i le atina'eina o falaoa -suka maualalo atoa, pulea le pH fa'afefete mulimuli i le va o le 4.6-4.7 e mafai ona fa'alautele le ola i le 2 aso. O lona feavea'i e mafai ai ona fa'ata'ita'i i luga ole laiga i la'asaga eseese, e aofia ai le fa'afefiloi o tane, pusa fa'amaonia, ma ogaumu, fausia ai se filifili mata'ituina lelei atoatoa.
O le fa'amautinoaina o le fa'atuatuaina o fa'amaumauga e mana'omia ai le fa'atonuina o le fa'agaoioiga: fa'aola i aso ta'itasi-ma fa'atatau i le tolu-fa'ailoga e fa'aaoga ai vaifofo pa'u masani i le pH 4.01, 6.86, ma le 9.18, pulea le sese i totonu ole ±0.02 pH; aʻo leʻi fuaina, e tatau ona fufulu eletise i le vai faʻafefe ma faʻagogo; a maeʻa suʻega, e tatau ona vave faʻaofuofu electrodes i se 3 mol / L potassium chloride solution mo le tausiga. O le faʻaogaina o le faʻaogaina o le planar electrodes e faʻaitiitia ai le paluga o totoe o le pipii, faʻapuʻupuʻu le faʻamamaina ma le tausiga o le taimi e 60%, ma faʻaluaina le umi o le faʻaogaina o tioata tioata masani. Ole galuega fa'amaumau fa'amaumauga a le pH mita e otometi lava ona fa'atupuina lipoti o su'ega, ma maua ai fa'amaoniga fa'atekinolosi mo le su'esu'eina lelei.
Fa'atasi ai ma le aga'i i luma o tulaga fa'ata'atia i totonu o fale tao tao, ua tula'i mai le pH mita mai mea faigaluega su'esu'e i "nu'u neura numera" i le fa'agaioiga o le gaosiga, fa'aoso le suiga o le gaosiga o falaoa mai le empiricism i fa'amatalaga-alaala. Fa'asaga i tua o le fa'aleleia o taumafa, o lenei fa'ata'ita'iga fa'asaienisi-fa'ata'ita'iga fa'atonutonu lelei ua avea ma lagolago fa'atekonolosi autu mo falefalaoa e fa'aleleia ai le fa'atauva o oloa.
