Black shayi, wanda yake cike da haki, shine shayin da aka fi sha a duniya. Yayin da ake sarrafa ta, dole ne a sha bushewa, birgima da fermentation, wanda ke haifar da hadaddun halayen sinadarai na abubuwan da ke cikin ganyen shayi kuma a ƙarshe ya haifar da dandano na musamman da lafiyarsa. Kwanan baya, tawagar binciken karkashin jagorancin Farfesa WANG Yuefei daga kwalejin aikin gona da fasahar kere-kere ta jami'ar Zhejiang, ta samu ci gaba da dama ta fuskar samar da ingancin shayi da kuma aikin lafiya.

Ta hanyar yin amfani da kimantawa na azanci da metabolomics don nazarin tasirin sigogin sarrafawa daban-daban akan mahaɗan maras kyau da marasa ƙarfi na Zijuan black shayi, ƙungiyar ta gano cewa phenylacetic acid da glutamine suna da alaƙa da ƙamshi da ɗanɗanon shayi na Zijuan, bi da bi. don haka samar da tunani don inganta fasahar sarrafa kayan shayi na Zijuan (Zhao et al., LWT -Kimiyyar Abinci da Fasaha, 2020). A cikin binciken da suka biyo baya, sun gano cewa yawan iskar oxygen zai iya inganta catechins, flavonoid glycosides da phenolic acid, kuma catechins oxidation na iya hanzarta lalata amino acid don samar da aldehydes maras tabbas kuma yana haɓaka iskar oxygen na phenolic acid, ta haka ne rage astringency da haushi da haɓaka haɓakar umami. , wanda ke ba da sabon haske game da cancantar samuwar black shayi. An buga waɗannan binciken binciken a cikin wata kasida mai suna "Oxygen-enriched fermentation yana inganta dandano baƙar fata ta hanyar rage ɗaci da astringent metabolites" a cikin mujallar.Binciken Abinci na Duniyaa watan Yuli, 2021.

Canje-canje a cikin metabolites marasa daidaituwa yayin sarrafawa suna shafar inganci da yuwuwar aikin kiwon lafiya na shayin shayi. A cikin Nuwamba 2021, ƙungiyar ta buga labarin buɗe damar shiga mai taken "Sauye-sauye-sauye na metabolite marasa daidaituwa yayin sarrafa shayi na Zijuan yana shafar yuwuwar kariya akan HOECs da aka fallasa ga nicotine" a cikin mujallar.Abinci & Aiki. Wannan binciken ya nuna cewa leucine, isoleucine, da tyrosine sune manyan samfuran hydrolysis yayin bushewa, da theaflavin-3-gallate (TF-3-G), theaflavin-3'-gallate (TF-3'-G) da theaflavin-3 ,3'-gallate (TFDG) an samo su ne a lokacin birgima. Bugu da ƙari, oxidation na flavonoid glycosides, catechins da dimeric catechins sun faru a lokacin fermentation. Lokacin bushewa, tubalin amino acid ya zama rinjaye. Canje-canje na theaflavins, wasu amino acid da flavonoid glycosides suna da tasiri mai mahimmanci akan juriya na Zijuan baƙar shayin zuwa rauni na ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta ta nicotine. Tsarin masana'anta na shayi na shayi na iya zama kyakkyawan ra'ayi don sarrafa samfuran shayi.

A cikin Disamba 2021, ƙungiyar ta sake buga wani labarin mai taken "Baƙar Tea Yana Rage Rauni Mai Rauni ta hanyar Gut-Lung Axis in Mice" a cikinJaridarKimiyyar Noma da Abinci. Wannan binciken ya nuna cewa PM (ɓangarorin kwayoyin halitta) - fallasa mice sun nuna damuwa na oxidative da kumburi a cikin huhu, wanda za'a iya ragewa sosai ta hanyar shan shayi na shayi na Zijuan yau da kullun ta hanyar dogaro da hankali. Abin sha'awa, duka ɓangarorin ethanol-soluble (ES) da ɓangarorin haɓakar ethanol (EP) sun nuna sakamako mafi kyau fiye da na TI. Bugu da ƙari kuma, fecal microbiota transplantation (FMT) ya bayyana cewa gut microbiota ya bambanta ta TI kuma ɓangarorinsa sun sami damar rage raunin da PMs ya jawo kai tsaye. Bugu da kari, daLachnospiraceae_NK4A136_kungiyarna iya zama core gut microbe da ke ba da gudummawa ga kariyar EP. "Wadannan sakamakon sun nuna cewa yawan shan shayi na shayi na yau da kullum da ɓangarorinsa, musamman ma EP, na iya rage raunin da PM ya haifar da raunin huhu ta hanyar gut-huhu a cikin mice, saboda haka yana ba da ma'anar ka'idoji don aikin kiwon lafiya na shayi na shayi," in ji Wang.