Banana ndeimwe yemichero yatinowanzo shandisa. Kuti uchengetedze zvinovaka muviri uye ruvara rwepakutanga rwezvigadzirwa zvakagadziriswa mabhanana, vaongorori vanoshandisaFreezeDryer zvevacuum freeze-drying zvidzidzo. Tsvagiridzo yekuomesa nechando pamabhanana inonyanya kutarisisa zvimedu zvebhanana nehupfu hwebhanana.
Iyo yekuomesa-kuomesa yehupfu hwebhanana inonyanya kusanganisira matanho akati wandei: preatment, pre-freezing, sublimation drying, desorption drying, uye kurongedza. Kurapa kunosanganisira kupepeta, kuchekerera, uye kupuruzira mabhanana kuitira kuti azoomeswa. Kufanoomesa nechando kunosanganisira kuomesa nechando pulp yebhanana kune imwe tembiricha kuti igadzire yakagadzika sublimation interface panguva yekuomeswa kwechikamu. Sublimation kuomeswa kunosanganisira kudziyisa chando chebhanana pulp pasi pevacuum mamiriro ekubvisa hunyoro kuburikidza ne sublimation. Desorption drying inowedzera kubvisa hunyoro hwasara kuti uwane kuoma kunodiwa. Pakupedzisira, hupfu hwebhanana hwakaputirwa hwagadzirira kutengeswa.
Maparamita akati wandei anofanirwa kudzorwa zvakanyanya panguva yekuomesa-kuomesa kuti ive nechokwadi chemhando yechigadzirwa. Chekutanga,zvinhu ukobvu: Sezvo mabhanana pulp ane viscous zvakanyanya, ukobvu hweyunifomu hunofanirwa kuchengetedzwa panguva yekugadzira kudzivirira nyaya dzakaita senge interlayers kana kuomeswa kusina kukwana. Chepiri,kupisa tembiricha panguva sublimation: Miedzo inoratidza kuti nguva yekuomesa inoderera sezvo tembiricha yesherufu inowedzera mukati mechikamu chakakodzera (≤20 ° C). Nekudaro, kupisa kwakanyanya pasi pekumanikidzwa kwekushanda kwakanyanya kunogona kukonzera kunyungudika kwechigadzirwa, izvo zvinoda kudzikisira tembiricha. Pakupedzisira,sublimation pressure: Kumanikidza kwekushanda kunonyanya kukanganisa kupisa uye kutamisa hukuru. Zvidzidzo zvinoratidza kudzvanywa kwakaringana (kutenderedza 40Pa) kunoderedza nguva yekuomesa.
Iko kuomesa-kuomesa curve inoshanda sechiratidzo chakakosha chekuomesa maitiro. Nekuongorora ma curves pasi pemamiriro akasiyana, maitiro paramita anogona kugadzirwa. Semuyenzaniso, pasi pemamiriro akakwana (8mm ukobvu, 20°C kudziyisa, 40Pa kudzvanywa), iyo chando-inoomesa curve inoratidza yakagadzikana sublimation uye desorption phase, ipfupi kuomesa nguva, uye yepamusoro chigadzirwa mhando.
Mazaya echando anoratidza zvakakosha uye tarisiro yakakura yekushandisa mukugadzirwa kwehupfu hwebhanana. Nekuomesera kudzora makiyi ma paramita uye optimization maitiro, ese echigadzirwa mhando uye kugona kwekugadzira kunogona kuvandudzwa. Nhasi, sezvo zviyero zvemhando yechikafu zvichikwira, BOTH dzakasiyana siyana dzekuomesa chando - dzakagadzirirwa zvemhando yepamusoro zvinodiwa - dzawana kurerwa kwakawanda.Kugamuchirwa kubvunzakuti uwane mamwe mashoko.
Nguva yekutumira: Mar-11-2025
