植物提取液是從植物為原料提取加工而成的液態,用于醫藥行業、食品行業、化妝品行業、保健品和日化行業等。隨著凍干技術的發展,目前通過真空冷凍干燥機(簡稱為:凍干機)的冷凍干燥技術,應用到植物提取液的干燥加工生產,凍干機干燥后能基本保持原有的營養活性,顏色和形狀等不變,而且具有速溶性。在植物提取液凍干機加工(gong)過(guo)程(cheng)不添(tian)加其他(ta)防腐劑等(deng),保(bao)持天(tian)然(ran)營養、能長期保(bao)存,脫水(shui)后方便(bian)運輸(shu)的特點(dian)。
凍(dong)干(gan)(gan)(gan)(gan)(gan)技術比如在(zai)中(zhong)藥(yao)(yao)提取物應用,經(jing)過(guo)前期萃取和濃縮后得到精華中(zhong)藥(yao)(yao)液體(ti),裝盤進(jin)入(ru)冷凍(dong)干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)機(ji)設備進(jin)行(xing)低(di)溫(wen)預(yu)凍(dong)(需要低(di)溫(wen)凍(dong)干(gan)(gan)(gan)(gan)(gan)機(ji)的(de)隔板溫(wen)度(du)在(zai)-50℃左右)5小時左右,然后進(jin)入(ru)凍(dong)干(gan)(gan)(gan)(gan)(gan)機(ji)的(de)干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)階段,干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)階段分為(wei)一次干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)和解(jie)析干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao),控(kong)溫(wen)范圍在(zai):-50~+40℃,中(zhong)藥(yao)(yao)提取液凍(dong)干(gan)(gan)(gan)(gan)(gan)機(ji)在(zai)這個(ge)溫(wen)度(du)區間進(jin)行(xing)曲線控(kong)溫(wen),保(bao)證升溫(wen)不(bu)(bu)影響物料的(de)活性受(shou)損,真(zhen)空度(du)控(kong)制(zhi)在(zai)1~25pa范圍。整個(ge)真(zhen)空冷凍(dong)干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)過(guo)程都(dou)是(shi)在(zai)凍(dong)干(gan)(gan)(gan)(gan)(gan)機(ji)的(de)PLC控(kong)制(zhi)下完(wan)成(cheng),通(tong)過(guo)凍(dong)干(gan)(gan)(gan)(gan)(gan)技術干(gan)(gan)(gan)(gan)(gan)燥(zao)(zao)得到中(zhong)藥(yao)(yao)粉劑(ji)(ji)或者片劑(ji)(ji)具有原液的(de)活性,復水性好,密封后長時間保(bao)存,解(jie)決了傳統中(zhong)藥(yao)(yao)藥(yao)(yao)劑(ji)(ji)液體(ti)存在(zai)容易變質(zhi)、不(bu)(bu)方便運輸和保(bao)存的(de)難題。
凍(dong)(dong)干(gan)機設備是由(you)凍(dong)(dong)干(gan)倉(cang)體、制(zhi)冷(leng)(leng)(leng)系(xi)(xi)統(tong)、加熱系(xi)(xi)統(tong)、循環系(xi)(xi)統(tong)、真空系(xi)(xi)統(tong)、電控(kong)系(xi)(xi)統(tong)等組成(cheng)(cheng),箱體和隔板材(cai)質為(wei)不銹鋼304或316,凍(dong)(dong)干(gan)機的制(zhi)冷(leng)(leng)(leng)系(xi)(xi)統(tong)由(you)壓縮(suo)機和各個配件組成(cheng)(cheng),具有降溫(wen)快(kuai)和制(zhi)冷(leng)(leng)(leng)能力強特(te)(te)點,凍(dong)(dong)干(gan)機設備是由(you)PLC電控(kong)控(kong)制(zhi)整個真空冷(leng)(leng)(leng)凍(dong)(dong)干(gan)燥運(yun)行(xing)(xing),做到一鍵啟動,全自動運(yun)行(xing)(xing)的特(te)(te)點,滿足(zu)GMP生(sheng)產(chan)要求,凍(dong)(dong)干(gan)機設備可以用于花青素凍(dong)(dong)干(gan)粉(fen)(fen),杜(du)仲提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)物(wu)凍(dong)(dong)干(gan)粉(fen)(fen),咖啡提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)液(ye)凍(dong)(dong)干(gan)粉(fen)(fen)、人參(can)提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)物(wu)凍(dong)(dong)干(gan)粉(fen)(fen)、靈芝提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)液(ye)凍(dong)(dong)干(gan)粉(fen)(fen)等冷(leng)(leng)(leng)凍(dong)(dong)干(gan)燥加工(gong)。所以冷(leng)(leng)(leng)凍(dong)(dong)干(gan)燥機設備廣泛應用于天然(ran)植(zhi)物(wu)色素制(zhi)品、中藥提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)物(wu)制(zhi)品、植(zhi)物(wu)提(ti)(ti)(ti)(ti)取(qu)(qu)(qu)制(zhi)品和濃縮(suo)制(zhi)品等加工(gong)生(sheng)產(chan)。