Igitandukaniro nyamukuru kiri hagati y’ibitoke vyumye mu mazi n’ibitoke vyumye mu kirere gishushe kiri mu guhinduka kw’imiterere y’imitsi yo mu mutima n’ingaruka zo kurinda ibara. Ugutakaza amazi mu mubiri mu gihe c’ubushuhe buringaniye -bica bifata ubukonje buri mu bitoke, inkuta z’ingingo zigaca zigabanuka zigasenyuka iyo zishushe, zigatuma habaho umubiri ukomeye cane. Ubushuhe bwinshi bwihuta guhinduka oxidation y’ibinyabuzima bita polyphénols, bikaba bituma ivyuma bihinduka ibitukura bidashobora gusubirwamwo, ivyo bikaba bigabanya cane uburyo ibintu bimaze gukorwa bigaragara. Muri ico gihe nyene, ibintu birimwo isukari nyinshi birayoroha kandi bikaguma ku gitereko mu gihe co gushusha, ivyo bikaba bituma ibikoresho bitakaza kandi bikongera igikorwa co gusukura inyuma yo gukora.
Ukwumisha mu mfuruka y’ubusa bishobora gutorera umuti ububabare bwo gutunganya ivyamwa vy’isukari nyinshi nk’ibitoke. Ivyo bikorwa bigabanywamwo intambwe zibiri z’ingenzi: ubushuhe burengeye ubw’imbere y’ugukonja n’ukwumisha mu mwuka w’ubusa. Ibikoresho bishasha vy’ibitoke birakonja ningoga ku -40℃, amazi yose y’isukari y’ubuntu ashirwa mu tugingo ngengabuzima dutoduto tw’urubura imbere mu nyama, bikafunga uburyo bw’intango bw’ibitoke. Amaze kwinjira mu cumba c’ubusa burengeye, amabuye y’agaciro y’urubura aca ahinduka umwotsi w’amazi ataco apfutse kandi ataco atemba. Ivyo vyose bishobora gutuma isukari igira ubushuhe bwinshi kandi igatuma isukari iryoha, ni co gituma ibipande vy’ibitoke biguma bifise ibara rimwe ry’umuhondo ukeye ata n’ibimenyetso vy’umwirabura, kandi imbere muri vyo bikaba bigira utunogo dufatanye.
Ku bijanye n’ibikorwa vy’ibitoke vyumye mu mfuruka-vyumye birafise akamaro kanini kuruta ibintu vyumye mu bushuhe. Igishushanyo cuzuye ata gucika intege canke guhinduka, ibara ryaco ni iry’akameremere kandi ridahinduka, kandi imbere mu gice c’umubiri gishobora guhura n’ibintu bitandukanye bisabwa mu gukurikirana. Ivyo bikoresho vy’ubushuhe buke-bigumya vyinshi mu bihimba vy’umubiri, ibintu vy’amaminera n’ibintu bifasha mu gukingira umubiri mu bitoke, kandi uburyohe busanzwe bw’ivyamwa bishasha ntibuzozimangana. Ikindi, ubukonje buri mu bitoke vyumye mu mfuruka-bugenzurwa ku rugero ruto, bifise imiterere y’umubiri n’imiti ihamye, kandi ntibizokwonona vyoroshe mu gihe co kubika no gutwara.
Ivyuma vyacu vy’ibitoke vyemewe na CE-bikora ubuhinga bwo gutuma ivyamwa vy’isukari nyinshi bigaragara neza. Igikoresho co kugenzura ubushuhe gishobora guhindura ivyerekeye imbere y’-ugukonja n’ugutera imbere bivanye n’uburemere bw’ibice vy’ibitoke be n’ingene umutobe w’ibitoke uri, kigacungera neza aho isukari y’ivyamwa iryoshe kugira ngo ntiyifatanye. Ico kinogo c’imbere cuzuye c’icuma kidashobora gusenyuka kiroroshe gusukura, kigatuma umuntu adashobora kwanduzwa n’isukari isigaye hagati y’ibikoresho bitandukanye. Uburyo bwo kugenzura bufise ubwenge mu gihe nyaco-butuma ubushuhe n’ubusa biguma bihinduka mu rugero rutoyi, bikaba bituma umubiri wose n’ibara ry’ibifungurwa vy’ibitoke biguma bihuye.
Ku bahinga batunganya ivyamwa, uburyo bw’ibitoke vyumye bifise igice-biheza biragira ico bikoze ku bijanye n’uguhiganwa kw’ibicuruzwa. Amahinguriro afise imashini z’ukwumisha za kera ashobora gusa gukora ibikoresho vy’ibitoke vyirabura, bikomeye kandi bishobora gusenyuka, ivyo bikaba bigabanya iterambere ry’imirongo y’ibikoresho vy’agaciro kanini. Gushigikira ibikoresho vy’ukwumisha bihuye n’ivyo bikoreshwa n’umuyagankuba bituma abahinguzi bashobora kuronka ibikoresho vy’ibitoke vy’amabara make, vy’ibitoke vy’ibitoke vy’ibara ry’agahama, kwagura uburyo bwo gukoresha ibicuruzwa, no guhingura ibikoresho vy’ibitoke vy’agaciro kanini.
