Tea nan take wani nau'in foda ne mai kyau ko samfurin shayi mai ƙarfi wanda za'a iya narkar da shi cikin ruwa da sauri, wanda ake sarrafa shi ta hanyar cirewa (hakar ruwan 'ya'yan itace), tacewa, bayani, maida hankali da bushewa. . Bayan fiye da shekaru 60 na haɓakawa, fasahar sarrafa shayi na gargajiya na gargajiya da nau'ikan samfura sun girma sosai. Tare da sauye-sauyen bukatun kasuwannin masu amfani da kayayyaki na kasar Sin a sabon zamani, masana'antar shayi nan take kuma tana fuskantar manyan damammaki da kalubale. Yana yin nazari da bayyana manyan matsalolin, yana ba da shawarar hanyoyin ci gaba na gaba da buƙatun fasaha, kuma yana gudanar da bincike na fasaha masu dacewa a cikin lokaci mai kyau don mafi kyau Yana da mahimmanci don warware manyan wuraren shan shayi na ƙasa da kuma inganta ci gaba mai dorewa na shayi na nan take. masana'antu.

An fara samar da shayi na nan take a Burtaniya a cikin 1940s. Bayan shekaru na gwajin samarwa da haɓakawa, ya zama muhimmin samfurin abin sha a kasuwa. Amurka, Kenya, Japan, Indiya, Sri Lanka, China, da dai sauransu sun zama babban samar da shayi na gaggawa. kasa. An fara gudanar da bincike da ci gaban shayi na kasar Sin nan take a shekarun 1960. Bayan R&D, ci gaba, saurin bunkasuwa, da ci gaba mai dorewa, sannu a hankali kasar Sin ta ci gaba da zama kan gaba wajen samar da shayi a duniya.

A cikin shekaru 20 da suka gabata, yawancin sabbin fasahohi da kayan aiki kamar hakar, rabuwa, maida hankali da bushewa sannu a hankali an fara amfani da su sosai a cikin samfuran shayi na nan take, kuma ingancin shayin nan take an inganta sosai. (1) Fasahar haɓakar haɓaka. Irin su ƙananan kayan aikin hakar zafin jiki, ci gaba da haɓaka kayan aikin hakar na yau da kullun, da sauransu; (2) fasahar rabuwa da membrane. Kamar microporous tacewa, ultrafiltration da sauran rabuwa membrane na'urorin da aikace-aikace na nan take shayi musamman rabuwa membrane; (3) sabuwar fasahar maida hankali. Irin su aikace-aikacen kayan aiki irin su centrifugal bakin ciki fim evaporator, reverse osmosis membrane (RO) ko nanofiltration membrane (NF) maida hankali; (4) fasahar dawo da kamshi. Kamar aikace-aikacen na'urar dawo da kamshin SCC; (5) fasahar enzyme na halitta. irin su tannase, cellulase, pectinase, da dai sauransu; (6) sauran fasahohin. Irin su aikace-aikacen UHT (Haifuwar zafin jiki mai tsananin zafi). A halin yanzu, fasahar sarrafa shayi ta gargajiya ta kasar Sin ta balaga sosai, kuma tsarin fasahar sarrafa shayi na gargajiya na gargajiya wanda ya dogara da tsattsauran tukwane mai tukwane, da saurin saurin saurin numfashi, da saurin numfashi, da fasahar bushewa da feshi da tsantsa mai tsayin daka, rabuwar membrane, membrane. maida hankali, da daskarewa an kafa. Tsarin fasahar sarrafa shayi na zamani bisa sabbin fasahohi kamar bushewa.

A matsayin samfurin shayi mai dacewa da gaye, shayin madara nan take ya kasance masu son masu amfani, musamman matasa masu amfani. Tare da ci gaba da zurfafawar shayi da haɓaka lafiyar ɗan adam, fahimtar mutane game da tasirin shayi akan maganin antioxidant, asarar nauyi, rage hawan jini, rage sukarin jini, da rigakafin rashin lafiyan yana ƙaruwa. Yadda za a inganta aikin kiwon lafiya na shayi bisa ga warware bukatun dacewa, salon da dandano, kuma muhimmin mahimmanci ne don dacewa da shan shayi mai kyau ga ƙungiyar masu matsakaici da tsofaffi. Muhimmin jagora don haɓaka ƙarin ƙima.