Akatswiri a Russian Quality System (Roskachestvo) adapeza ma nitrates ndi mankhwala oletsa tizilombo m'masamba. Kafukufukuyu adakhudzanso zinthu zomwe zidabzalidwa m'malo obiriwira 11 aku Russia m'magawo asanu ndi awiri adzikoli. Izi zikuphatikizapo nkhaka, tomato ndi masamba. Kuchuluka kwa nitrate kovomerezeka kudapezeka mu nkhaka za gherkin zopangidwa ndi LLC TD Moy Leto wochokera kudera la Kaluga. Akatswiri a dipatimentiyi adafotokoza kuti zomwe zidachitikazi zidapitilira kawiri. Zamasamba zotsalazo zinali ndi nitrates pang'ono mkati mwazovomerezeka. Mankhwala ophera tizilombo adapezekanso m'masamba, ndipo zitsanzo zina zinali ndi mitundu ingapo nthawi imodzi.