teapolyphenols (TPs) kalma ce ta gaba?aya don maha?an polyhydroxyphenolic a cikin shayi, gami da flavanols (catechins), flavandiols, flavonoids da phenolic acid. Catechins wani nau'i ne na abubuwa masu mahimmanci a cikin shayi polyphenols, suna lissafin kusan 60% zuwa 80% na yawan adadin shayi na polyphenols. Suna da yawa sun ?unshi monomers 8, ciki har da epigallocatechin gallate, epigallocatechin, gallocatechin, epicatechin gallate, epicatechin gallate, catechin gallate, epicatechin gallate, epicatechin gallate, epicatechin gallate, epicatechin gallate, epicatechin da epicatechin.

A cikin aikin sarrafa shayi, polyphenol oxidase da peroxidase oxidize catechins don samun thearubin, theaflavin da theaflavin uku ruwan shayi. Wadannan TPs ba wai kawai suna ba wa shayi hadadden dandano da launinsa ba, har ma suna da amfani ga lafiyar ?an adam.

A yau, yayin da ake neman ci gaban tattalin arziki mai inganci, mutane kuma suna la'akari da ci gaban kore da sake amfani da su. Polyphenols na shayi suna da antioxidant, antibacterial, anticancer da ayyukan rigakafin kiba, don haka masu bincike sun yi amfani da su a magani da abinci.

A cikin magani, masu bincike suna amfani da tsarin isarwa don kare ?wayoyin cuta masu saurin lalacewa da inganta yanayin su; Bugu da ?ari, an ha?a polyphenols na shayi tare da sunadaran da polysaccharides don yin sababbin samfurori da magungunan rana, wa?anda ake amfani da su don kula da fata, anti-allergy, anti-pathogen, kula da lafiyar baki da kuma daidaita metabolism na lipid.

A fagen binciken abinci, polyphenols na shayi an ha?a su da polysaccharides, sunadaran da sauransu, ta hanyar hul?ar ?wayoyin cuta don ha?aka ingancin abinci, tsawaita lokacin ajiyar abinci, da yin kayan abinci. Bisa ga wannan, mun tattauna aikace-aikacen bincike na polyphenols na shayi a fannin abinci da magani, don samar da bincike mai zurfi na polyphenols na shayi a abinci da magani.

1.Na jiki da sinadaran Properties na shayi polyphenols

Polyphenols na shayi ana samun su ne daga ganyen shayi kuma sune cakuda maha?an polyhydroxyl na halitta, wa?anda suka ha?a da catechins, anthocyanins, flavonols da phenolic acid, da sauransu. Babban ?angaren antioxidant shine catechins. Daga cikin su, Epigallocatechin gallate ya kai kashi 50% zuwa 60%, Epicatechin gallate ya kai kashi 15% zuwa 20%, epigallocatechin ya samu kashi 10 zuwa 15%, gallatechin ya kai kashi 6% zuwa 8%, epicatechin ya samu kashi 4 zuwa 6%. A dakin da zazzabi, shayi polyphenols ne mai haske rawaya ko haske kore foda, astringent dandano, karfi acid juriya, barga a pH 2 ~ 7; Tea polyphenols suna da wasu hygroscopicity kuma suna da sau?in canza launi a cikin yanayin alkaline.

2.Biological ayyuka na shayi polyphenols

Polyphenols na shayi yana da ayyuka daban-daban na ilimin halitta kamar antioxidant, antibacterial da anti-mutation, EGCG shine mafi yawa a cikin catechins kuma yana taka muhimmiyar rawa a aikin antioxidant. Ayyukan nazarin halittu sun fito ne daga ?ungiyar phenolic hydroxyl a cikin shayi polyphenols, wanda ke yin ayyukan halitta daban-daban a cikin nau'ikan abinci daban-daban. Wa?annan ayyuka na musamman suna yin polyphenols na shayi da ake amfani da su sosai a abinci.

Yin amfani da polyphenols na shayi a cikin abinci

1.Tsarin abinci da kiyayewa

Ana iya amfani da polyphenols na shayi a ko'ina a cikin adana abinci da abubuwan kiyayewa, abubuwan da ba su da guba da halayen aminci masu cin abinci sun sa ya zama kyakkyawan za?i. Zai iya hana canza launin abinci da iskar shaka, inganta kwanciyar hankali na cellulose, da kare abubuwan gina jiki a cikin abinci.

2.Maye gurbin roba antioxidants

Tare da kulawa da aka biya ga amincin abinci, shayi polyphenols a hankali yana maye gurbin antioxidants na wucin gadi azaman antioxidants na halitta. Ba za a iya amfani da shi kawai a cikin man dabbobi da kayan lambu, kayan nama, kayayyakin ruwa, abinci na 'ya'yan itace da kayan lambu da sauransu, amma kuma ana iya amfani dashi a cikin irin kek, alewa da sauransu. Ya kamata a lura cewa aikin antioxidant na shayi polyphenols an fara amfani dashi a cikin mai da abinci mai mai. Saboda aikin phenol hydroxyl akan zoben benzene na catechins don samar da hydrogen, yana da ?arfin rage ?arfi kuma ya zama ingantaccen antioxidant na halitta don mai.

Tsarin antioxidative na shayi polyphenols shine cewa ?ungiyar phenol hydroxyl mai aiki, a matsayin mai ba da gudummawar hydrogen, tana ?aure ga rukunin fatty acid kyauta, ta katse sarkar yanayin iskar oxygen mai kitse, don haka yana hana samuwar hydroperoxide. A lokaci guda, polyphenols mai mai-mai narkewa na shayi na iya chelate tare da gano abubuwa masu canzawa na ?arfe a cikin mai, ta yadda zai rasa ayyukan ha?akawa kuma yana ?are sarkar sarkar kyauta daga tushen. Bugu da ?ari, ?ungiyar phenol hydroxyl kanta tana da sau?i oxidized, wanda ke rage yawan iskar oxygen a cikin mai kuma yana jinkirta iskar oxygen da man fetur.

3.Ayyukan ci gaban abinci

Polyphenols na shayi yana nuna babban yuwuwar ha?akar abinci mai aiki, kuma tsarin sinadarai na musamman ya ?ayyade cewa yana da ?arfi mai ?arfi don cire radicals kyauta. Polyphenols na shayi suna da ?arancin damar REDOX, ?ungiyar polyo-phenol hydroxyl na iya samar da hydrogen don katsewa ko dakatar da aikin sarkar radical, kuma tsarin sinadarai na musamman ya ?ayyade cewa yana da ?arfi mai ?arfi don cire radicals kyauta. Polyphenols na shayi na iya kunna tsarin ?arna na radicals kyauta, kuma ya hana samar da radicals kyauta ta hanyar hana ions ?arfe na oxidation mai haifar da sauye-sauye na tsarin oxidase. A matsayinka na halitta free radical scavenger, shayi polyphenols suna da amfani ga kiyaye lafiyar ?an adam. Ko da yake kasar Sin tana kan gaba a wannan fanni, tana da kyakkyawan fata na samun ci gaba a nan gaba.

4.Application a cikin adana kayan nama da kayan ruwa

Kwayoyin cututtukan da ke haifar da cututtuka a cikin kayan nama sune pseudomonas, Enterobacter, staphylococcus da salmonella, kuma manyan kwayoyin cutar da ke haifar da lalacewa na kayan ruwa sune kwayoyin pseudomonas. Polyphenols na shayi na iya hana haifuwa iri-iri na ?wayoyin cuta yadda ya kamata, rage iskar oxygen da mai, jinkirta lalacewa, don haka ?ara sabbin kayan nama da samfuran ruwa.

A cikin 'yan shekarun nan, an ba da rahoton polyphenols na shayi a cikin naman alade, naman sa, naman naman nama da sauran kayan nama da nau'in kifi iri-iri, surimi, ?wallan kifi da jatan lande da sauran kayayyakin ruwa da aka ba da rahoton daya bayan ?aya, shine kyakkyawan ma'amalar kiyaye sabo. Yawancin karatu sun nuna cewa mafi girman taro na maganin adana polyphenol shayi, mafi kyawun tasirin hanawa akan ?wayoyin cuta na samfuran nama da samfuran ruwa, amma polyphenols na shayi zai sami mummunan tasiri akan tsinkayen nama, wanda ke haifar da launi na nama. Polyphenols na shayi na iya hana ci gaban nau'ikan ?wayoyin cuta da yawa, amma tsarinsa bai bayyana ba.

5.Aikace-aikace a cikin adana 'ya'yan itace da kayan lambu

Kyakkyawan kula da asarar ruwa na pathological lalacewa ta hanyar ?wayoyin cuta masu cutarwa akan lalacewar 'ya'yan itace; Tea polyphenols yana da babban sakamako na antioxidant, wanda zai iya rage jinkirin lalacewar oxidative na 'ya'yan itatuwa da kayan marmari, daidaita ayyukan polyphenol oxidase, da kunna tsarin tsaro na 'ya'yan itatuwa da kayan marmari. A lokaci guda kuma, kwayoyin polyphenol na shayi sun ?unshi ?ungiyoyin phenolic hydroxyl masu aiki, wa?anda kai tsaye za su iya samar da hydrogen a cikin kwayoyin zuwa bitamin C a cikin 'ya'yan itatuwa da kayan marmari, ta yadda zai iya kula da yanayin raguwa da rage asarar bitamin C.

Karancin maida hankali na polyphenols na shayi da aka fesa ko mai rufi a saman sabbin 'ya'yan itatuwa da kayan marmari na iya hana haifuwa na kwayan cuta da tsawaita sabbin rayuwar 'ya'yan itatuwa da kayan marmari. Tsarin adana sabo yana da rikitarwa, kuma manyan abubuwan sun bambanta da nau'ikan 'ya'yan itatuwa da kayan marmari daban-daban. Bugu da kari, shayi polyphenols kuma iya jinkirta bayan-ripening lokaci na 'ya'yan itatuwa da kayan marmari, saboda yana da slowing sakamako a kan biochemical ayyukan 'ya'yan itatuwa da kayan lambu. Koyaya, tsarin adana polyphenols na shayi don 'ya'yan itatuwa da kayan marmari daban-daban ba iri ?aya bane, kuma adadin da ake bu?ata da yanayin amfani da abubuwa daban-daban sun bambanta, wanda kuma yana bu?atar ?arin bincike.

Aikace-aikace na shayi polyphenols a magani

1, anti-oxidation da anti-radiation

Saboda tsarin sinadarai na musamman, polyphenols na shayi yana da ?arfin antioxidant mai ?arfi, wanda ya fi na kowa antioxidants kamar VC, VE da antioxidants na wucin gadi BHT, BHA da sauransu. Bugu da kari, shayin polyphenols kuma yana iya kawar da radicals masu cutarwa, yana inganta garkuwar jiki, kuma abubuwan da ake samu na catechin suma suna iya rage gubar karafa masu nauyi a jikin dan adam da kuma tasirin radiation, don haka ana kiransa da “radiation busters”.

2.Hemostatic aiki

Polyphenols na shayi suna da ayyukan antioxidant da ?wayoyin cuta, don haka suna iya hana damuwa na oxidative da haifuwa na kwayan cuta a wurin rauni, ha?aka samuwar tasoshin jini a cikin vitro da ajiya na collagen, kunna ?wayoyin jajayen jini da neutrophils, da sauri dakatar da zub da jini. Sunadaran, abubuwan coagulation, platelets da fibrin a wurin rauni suna ha?uwa tare da polyphenols na shayi don samar da abubuwan ha?in gwiwa da kuma hanzarta warkar da rauni.

3.Antitumor far

Tea polyphenols, musamman ma'anar catechin, yana da maganin maye gurbi da kuma maganin ciwon daji, wanda zai iya hanawa da hana tsarin peroxidation na lipid, kula da inganta aikin enzyme a cikin jikin mutum, kuma yana nuna sakamako mai kyau a cikin rigakafi da maganin adjuvant na ciwon ciki, ciwon hanji da sauran cututtuka.

4, rage lipids na jini, hana atherosclerosis

Polyphenols na shayi na iya hana ha?akar abun ciki na cholesterol a cikin jini da hanta, yana da tasirin ha?akar ha?akar maha?an lipid daga feces, ba wai kawai zai iya hana atherosclerosis ba, har ma yana da tasirin asarar nauyi. Daga cikin su, EGCG da sauran catechins suna daidaita metabolism na lipid ta hanyar hana ?aukar abubuwan gina jiki a cikin gastrointestinal tract, sarrafa samuwar ?wayoyin kitse da lipids, daidaita flora na hanji, da ha?aka juriya na insulin.

5.Hanyar cutar cututtukan zuciya

Polyphenols na shayi yana da kyakkyawar rigakafi da tasirin warkewa akan cututtukan zuciya da jijiyoyin jini, musamman a cikin hana atherosclerosis wanda ke haifar da babban cholesterol da abun ciki na triglyceride. Bugu da ?ari, polyphenols na shayi na iya taimakawa wajen kiyayewa da rage karfin jini da kuma daidaita matakan sukari don rage matakan sukari na jini.

6.Anti-oxidation da anti-tsufa

Polyphenols na shayi na iya cire radicals masu yawa da yawa a cikin jikin mutum kuma yana rage tsufa na jikin mutum. Ayyukan antioxidant na polyphenols na shayi sun fi ?arfin VE, kuma yana da kyau idan an ha?a su tare da VC da VE.

7.kariya

An tabbatar da cewa polyphenols na shayi na iya hana ?wayoyin cuta na cariogenic da ?arfi kuma suna rage plaque da index periodontal.

8.Antibacterial and antiviral

Polyphenols na iya ha?aka furotin tantanin halitta, denaturate da kashe furotin tantanin halitta. Yin amfani da ka'idar maganin rigakafi da antiviral shayi polyphenols, an yi amfani da catechins a cikin kwandishan na waje. EGCG a cikin TPs na iya ?aure zuwa ?wayar lipid na ?wayoyin cuta kuma yana shafar ?wayar folate na ?wayoyin cuta ta hanyar hana cytoplasmic enzyme dihydrofolate reductase, don haka cimma manufar antibacterial.