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ʻO ka hoʻomākaukau waikiki Gallic

iconAcid Hydrolysis

Hoʻokaʻawale ʻia ka hana hydrolysis acid i hoʻokahi a me ke kiʻina ʻelua ʻanuʻu. ʻO ke kahe o ke kaʻina hana nui o ka hoʻomākaukau ʻelua papa o ka maka o ka galic acid → mea hoʻoiho wai wela → ke koena kānana → ke ʻano wai wai wai tannin e pili ana i 20% → hydrolysis acid → hoʻoliʻiliʻi crystallization → centrifugation e loaʻa ai ka huahana crude → ka hoʻopau ʻana o ka huahana crude a me ka decolorization charcoal → ma hope o ka kānana Ke anuanu a me ka crystallization → centrifugation → hoʻomaloʻo → hoʻopau huahana o ka waikawa galic. ʻO ke kaʻina hana hoʻokahi no ka hoʻomākaukau ʻana i ka waikawa gallic hoʻopau i ka pono no hoʻokahi ʻanuʻu o ka leaching cyanine ke hoʻohālikelike ʻia me ke kaʻina ʻelua ʻāpana. Hoʻohui pololei ʻia me ka hydrolysis acid, e kāpae ana i ka pono no ka haki ʻana, ka leaching ʻana, ka noʻonoʻo a me nā kaʻina hana ʻē aʻe, hoʻopōkole ʻana i ka pōʻaiapuni hana, a kūpono ke ala kaʻina a me nā hoʻolālā pono hiki ke kūpono, ua hoʻokō ʻia ka hoʻomohala ʻia ʻana o kāna huahana. kahi ala i waho no nā kumuwaiwai nahele i nā wahi mauna.

Eia nō naʻe, ʻo ka waikawa sulfuric i hoʻohana ʻia i ke kaʻina hydrolysis acid kahi waikawa ikaika, e hoʻopau ana i nā lakohana i nā kekelē ʻokoʻa. ʻOiai ʻo ka kānana hopena a me ka pahu hau i hana ʻia i ke kila kila, ma muli o ke kiʻekiʻe o ke ana wela a me ke kiʻekiʻe o ka waikawa kiʻekiʻe, maopopo leʻa ʻia, kahi e pili pono i ke ola lawelawe o nā lakohana.

iconAlkaline Hydrolysis

ʻO ka alkoline hydrolysis ka mea e hydrolyze i ka raw material extract, ʻo ia hoʻi, ka wai wai wai wai tannin ma lalo o nā kumu alkaline, a laila neenee a ʻākika hoʻi me ka waikawa e hoʻoulu ai i ka waikawa gallic.

ʻO ke kahe nui e kahe ana nā mea maka → ka wai unuhi wela → alkali hydrolysis → acid neutralization → hoʻonuanu crystallization → centrifugation e loaʻa ai ka hua ʻaila → hoʻopau ʻia o ka huahana crude a me ka decolorization charcoal → kānana a me ka crystallization → centrifugation → hoʻomaloʻo → huahana huahana waikiki.

Hoʻohālikelike ʻia me ka hana hydrolysis acid, ʻoi aku ka corrosive o ke ʻano hydralysis alkaline i nā pono hana a hoʻemi nui i ka hoʻoliʻiliʻi o nā pono hana, akā ʻoi aku ka paʻakikī o ke kaʻina hana ma mua o ka hana hydrolysis acid. ʻO ka hapanui o nā hana hana galic acid e hoʻohana i ka hydralysis alkaline. [3]

iconFermentation

Hoʻohana ka hana fermentation i nā microorganism no ka fermentation i kahi wai wai wai i piha i nā tannins, a hoʻohana i ka glucose i nā tannins ma ke ʻano he kalapona no ka ulu a me ka hana hou ʻana o nā microorganism. Hoʻokomo ʻia nā ʻenekia biology e nā microorganisms catalyze ka hydrolysis o nā tannins.

Kahe kahe E wili i nā mea maka i ke anawaena o ka emi o 10mm → e nānā i ka pauka kolo → e hoʻokomo i ka wai e hoʻonui i ka wai ʻo 30 tannin → e hoʻohui i nā lāpili ʻeleʻele → fermentation no 8-9 mau lā → kānana → holoi → ka waikawa gavic crude → hoʻoheheʻe a recrystallization → ʻakika gallicʻakika.

ʻO ka pilikia nui i ke ʻano fermentation ʻo ia ke kūkulu ʻia ʻana o nā enzyme biology a me ka hydrolysis o nā tannin i lawe ʻia i loko o ka moku kūlike like, a paʻakikī ke ʻano o ke kaʻina hana i kahi kūlana maikaʻi loa, e hopena ana i kahi pōʻai lōʻihi lōʻihi (ʻoi aku ma mua o 3 nā lā), hydrolysis piha ʻole o nā tannin, a me nā tannin residual Up a 15% ~ 20%.

iconEnzymatic

I ka ʻike ʻana i nā hemahema o ke ʻano fermentation, ua hoʻomohala ʻia nā noiʻi ʻana e pili ana i nā hana enzymatic hou ma ka home a me nā ʻāina ʻē. ʻO ke kī i ka ʻōnaehana enzymatic ke kānana a hoʻomākaukau i nā enzyme biology maikaʻi loa. ʻO Tanninase kahi acetyl hydrolase, kahi acyl hydrolase i hoʻokomo ʻia i extrasporal, i hiki ke hana pono, kikoʻī, a hoʻopaʻa i ka hoʻopaʻa ester, ka paʻa depsil a me ka hoʻopaʻa glycosidic i nā mole mole tannin e hana i ka waikawa gallic. Ma lalo o nā kūlana kūpono, hiki i nā mould a me nā tannins inducer ke hana i ka tannase. ʻO Aspergillus niger ka kānana i hoʻohana mau ʻia.

Kahe kahe Ka hoʻoulu hua ʻana o ka enzyme → ka hana ʻana o ka enzyme fermentation → (me ka hoʻohui ʻana i nā mea maka) hydrolysis → kānana → ka noʻonoʻo → ka hana ʻana i ka crystallization → ka hoʻokaʻawale → ka decolorization → ka crystallization mua → ka crystallization lua → ka hoʻomaloʻo ʻana → ka wāwahi → ka pau ʻana o ka acidic gallic.

Hoʻohālikelike ʻia me ke ʻano fermentation, ua hoʻopōkole loa ka hana enzymatic i ka manawa o ka hopena, ʻoi aku ka nui o ka tannin hydrolysis ma mua o 98%, a ua hoʻemi nui ʻia ka helu heluʻai.


Ka manawa o ka manawa: Feb-23-2021