Kudya katsitsumzukwa kumapangitsa mkodzo kukhala fungo lapadera lomwe nthawi zina limafotokozedwa ngati sulfure-kapena chinachake chofanana ndi kabichi yophika. Kununkhira ndiko chifukwa cha momwe thupi lanu limayankhira kwa mankhwala ena achilengedwe omwe amapezeka m'mphepete zobiriwira.
Ngati simunadyepo katsitsumzukwa, kununkhira koyamba koyamba kungakhale kotopetsa, koma ndizochitika mwachizolowezi, ndipo palibe choopsa chilichonse chokhudzana ndi kukhala ndi "katsitsumzukwa". Monga momwe ndikudziwira, palibe mankhwala kapena njira zophika zimasintha zotsatira.
Asayansi samadziŵa bwino lomwe mankhwala kapena mankhwala omwe amachititsa kuti apange fungo, koma mwina chifukwa cha mankhwala omwe ali ndi sulufule omwe amapezeka mu katsitsumzukwa. Methanethiol ndiyo inali yoyamba kuimbidwa mlandu mu 1891, koma kuyambira nthawi imeneyo, mankhwala ena ambiri aperekedwa monga momwe zingatheke kuti:
- 1-Propene-3-isothiocyante
- 3-Methylthiophene
- Bis- (methythio) methane
- Mpweya disulfinde
- Carbon oxide sulfide
- Dimethyl sulfide
- Dimethyl disulfide
- Dimethyl trisulfide
- E-methylthio-1-propene
- Hydrogen sulfide
- Methylpropylsulfide
- S-methyl-2-propenthioate
- S-methyl-3- (methylthio) thiopropionate
- S-methyl-thioacrylate
- Tetrahydrothiophene
- Methanesulfonic anhydride
- Butyrolactone
- 1,4-bis (methythio) -butane
Mbiri Yatsitsimutso Yakale
Katsitsumzukwa kwakhalako kwa zaka zoposa zikwi ziwiri, koma fungo la katsitsumzukwa kadzakhala chodabwitsa chatsopano, kapena, sichidawoneke mu mabuku aliwonse mpaka 1731 pamene John Arbuthnot analemba za izo mu zolemba zokhudzana ndi chikhalidwe cha Zakudya .
Benjamin Franklin analemba za phindu lopweteka la katsitsumzukwa cha kudya monga chitsanzo cha momwe zinthu zosiyanasiyana zomwe zimalowa m'thupi zimakhudzira zonunkhira zomwe zimachokera mu zolemba zakale zomwe zikudandaulira asayansi tsikulo kuti apange mankhwala omwe angasinthe chokhumudwitsa fungo la mafuta othamangitsidwa:
"Zindikirani kuti tili ndi Mphamvu yosinthira ndikutanthauzira pang'ono, kununkhira kwa mtundu wina wa madzi, madzi omwe timadya, timadzi timene timadya, timapereka mchere wathu wosasangalatsa, ndipo Pill of Turpentine sichiposa Pea, idzapereka pa Smell ya Violets okondweretsa. Ndipo n'chifukwa chiyani tiyenera kuganiza kuti n'zosatheka mu Chilengedwe, kupeza Njira Yopangira Mpweya Wathu kuposa Madzi Athu? "
N'zochititsa chidwi kuti feteleza ophatikiza ndi sulfure adagwiritsidwa ntchito koyamba kuti azitsuka katsitsumzukwa kumapeto kwa zaka za zana la 17, ndipo kufotokoza katsitsi katsitsumzukwa kunayamba kuonekera posakhalitsa.
Anthu ena saona zosiyana ndi mkodzo wawo atadya katsitsumzukwa. Asayansi omwe amaphunzira zinthu izi adalongosola zifukwa zingapo za kusowa katsitsumzukwa pee mwa anthuwa. Chimodzimodzinso ndi chakuti kusiyana kwa chibadwa kumalepheretsa kusokoneza kwa thupi kwa mankhwala osokoneza fungo kuti asachitike. Chotheka china ndi chakuti anthuwa akhoza kubweretsa zofukiza koma ali ndi vuto la chibadwa limene limawalepheretsa kuti azindikire zonunkhira zimenezo, kotero iwo saganiza kuti mkodzo wawo umawoneka mosiyana pambuyo pa kudya katsitsumzukwa.
Zotsatira
Gearhart HL, Pierce SK, Payne-Bose D. "Zosakaniza zamadzimadzi m'matumbo a munthu mutatha kusungunuka katsitsumzukwa." Clin Chem. 1977 Oct; 23 (10): 1941.
Mitchell SC. "Chakudya choyenera: zakudya zam'madzi ndi katsitsumzukwa." Kutaya Mankhwala Osokoneza Bongo. 2001 Apr; 29 (4 Pt 2): 539-43.
Pelchat ML, Bykowski C, Duke FF, Reed DR. "Kusakondwa ndi kulingalira kwa fungo labwino mu mkodzo pambuyo pa katsitsumzukwa kumayambitsa: maphunziro a psychophysical and genetic study." Chem Senses. 2011 Jan; 36 (1): 9-17.