Qhov kev loj hlob qeeb ntawm cov menyuam npua tom qab tsis noj mis yog vim muaj kev txwv ntawm kev zom zaub mov thiab kev nqus, tsis txaus tsim cov hydrochloric acid thiab trypsin, thiab kev hloov pauv sai ntawm kev noj zaub mov thiab kev noj zaub mov. Cov teeb meem no tuaj yeem kov yeej los ntawm kev txo cov pH hauv cov zaub mov nrog cov organic acids tsis muaj zog. Cov haujlwm tseem ceeb ntawm cov organic acids yog cuam tshuam nrog kev txo qis ntawm tus nqi pH hauv plab, uas hloov cov pepsinogen tsis ua haujlwm mus rau hauv cov pepsin nquag. Cov organic acids tuaj yeem tiv thaiv cov kab mob thiab tua cov kab mob. Cov organic acids tuaj yeem txo qis kev tso tawm ntawm cov zaub mov ntxiv thiab nitrogen, vim tias lawv tsim cov complexes nrog cov zaub mov, uas pab txhim kho lawv cov bioavailability. Cov organic acids kuj tseem tuaj yeem txhim kho qhov pom tseeb ntawm txoj hnyuv zom zaub mov thiab kev loj hlob. Hauv ib lo lus, cov organic acids thiab lawv cov ntsev tau txhim kho qhov kev siv protein thiab cov ntsuas ntau lawm ntawm cov menyuam npua tsis noj mis.