人工膽汁(Bile juice,pH 8.1)：當(dang)脂(zhi)肪(fang)或蛋白質食(shi)物(wu)進入(ru)十二指(zhi)腸(chang)(chang)時(shi)，使(shi)小腸(chang)(chang)黏(nian)膜(mo)釋放(fang)縮膽(dan)(dan)囊(nang)素，此種(zhong)激素被吸收(shou)(shou)(shou)入(ru)血運送到膽(dan)(dan)囊(nang)，可引(yin)起膽(dan)(dan)囊(nang)收(shou)(shou)(shou)縮。當(dang)膽(dan)(dan)囊(nang)收(shou)(shou)(shou)縮時(shi)，奧狄氏括約(yue)肌舒(shu)張(zhang)(zhang)。食(shi)物(wu)在十二指(zhi)腸(chang)(chang)內引(yin)起蠕動增強。蠕動波收(shou)(shou)(shou)縮前的容受性舒(shu)張(zhang)(zhang)現(xian)象時(shi)括約(yue)肌和鄰近(jin)的腸(chang)(chang)壁都出現(xian)暫時(shi)舒(shu)張(zhang)(zhang)，此時(shi)膽(dan)(dan)囊(nang)收(shou)(shou)(shou)縮，使(shi)膽(dan)(dan)汁(zhi)沿(yan)總膽(dan)(dan)管流動的壓力增強，膽(dan)(dan)汁(zhi)排(pai)入(ru)十二指(zhi)腸(chang)(chang)。當(dang)飲食(shi)中缺(que)少脂(zhi)肪(fang)時(shi)，膽(dan)(dan)囊(nang)排(pai)空減慢。

規格：500ml

保存： 4℃,

有(you)效(xiao)期：3個月

用(yong)途：用(yong)于體外消(xiao)化實驗。

說明：由氯(lv)化鈉、碳酸(suan)氫鈉、氯(lv)化甲、尿素、氯化(hua)鈣、BSA、膽鹽(yan)等組成。

膽(dan)(dan)(dan)(dan)汁是在膽(dan)(dan)(dan)(dan)道中流動(dong)的(de)(de)(de)一種(zhong)特殊的(de)(de)(de)體液,由(you)肝臟(zang)分泌產生。膽(dan)(dan)(dan)(dan)汁的(de)(de)(de)生成(cheng)過程(cheng)非常復雜,肝臟(zang)產生的(de)(de)(de)膽(dan)(dan)(dan)(dan)汁稱為(wei)肝膽(dan)(dan)(dan)(dan)汁。肝臟(zang)不斷地生成(cheng)膽(dan)(dan)(dan)(dan)汁,每天的(de)(de)(de)生成(cheng)量約為(wei)600~1000ml,隨著人們的(de)(de)(de)活動(dong)、飲(yin)食的(de)(de)(de)質和量、以(yi)及飲(yin)水量的(de)(de)(de)不同(tong)而變(bian)化,進餐時肝臟(zang)產生的(de)(de)(de)膽(dan)(dan)(dan)(dan)汁比(bi)平(ping)時多得多。

膽(dan)汁(zhi)(zhi)味苦,肝膽(dan)汁(zhi)(zhi)呈金黃色(se),而(er)膽(dan)囊(nang)內的(de)(de)(de)(de)膽(dan)汁(zhi)(zhi)因經濃縮而(er)成深綠色(se)。應(ying)用色(se)譜分(fen)析(xi)、光譜分(fen)析(xi)等現代分(fen)析(xi)技術來分(fen)析(xi)膽(dan)汁(zhi)(zhi)中(zhong)(zhong)所(suo)含(han)的(de)(de)(de)(de)成分(fen),發現膽(dan)汁(zhi)(zhi)中(zhong)(zhong)部(bu)分(fen)是(shi)水(shui)(肝膽(dan)汁(zhi)(zhi)中(zhong)(zhong)水(shui)約占97% ),在水(shui)中(zhong)(zhong)溶有許(xu)多種(zhong)物(wu)質,其中(zhong)(zhong)包括能幫助脂肪消化和吸收(shou)的(de)(de)(de)(de)膽(dan)汁(zhi)(zhi)酸,以及與消化無關(guan)的(de)(de)(de)(de)肝的(de)(de)(de)(de)排(pai)泄(xie)物(wu)膽(dan)紅(hong)素,膽(dan)汁(zhi)(zhi)的(de)(de)(de)(de)顏色(se)就是(shi)由膽(dan)汁(zhi)(zhi)中(zhong)(zhong)膽(dan)紅(hong)素的(de)(de)(de)(de)含(han)量所(suo)決(jue)定的(de)(de)(de)(de)。

此外(wai),膽(dan)(dan)汁(zhi)(zhi)(zhi)中含有磷脂、膽(dan)(dan)固(gu)醇、鈉、鉀、鈣、磷酸鹽和碳酸鹽等(deng),以及少(shao)量蛋白質(zhi)等(deng)成(cheng)分(fen)。膽(dan)(dan)汁(zhi)(zhi)(zhi)有兩(liang)大作(zuo)用,一是作(zuo)為消化液,幫助脂肪在腸內的消化和吸收(shou);二是將某些代謝(xie)產物從肝臟排出。在正常情況下,膽(dan)(dan)汁(zhi)(zhi)(zhi)中各種(zhong)(zhong)成(cheng)分(fen)的含量保(bao)持著相對的穩定,當膽(dan)(dan)汁(zhi)(zhi)(zhi)中各種(zhong)(zhong)成(cheng)分(fen)發生(sheng)較大的變(bian)化時,就會引(yin)起膽(dan)(dan)道(dao)疾(ji)(ji)病(bing)。目前,科學家正在深(shen)入(ru)研究和分(fen)析當膽(dan)(dan)道(dao)患疾(ji)(ji)病(bing)時,膽(dan)(dan)汁(zhi)(zhi)(zhi)的成(cheng)分(fen)會發生(sheng)哪些改變(bian),以及各種(zhong)(zhong)藥物對膽(dan)(dan)汁(zhi)(zhi)(zhi)成(cheng)分(fen)有哪些影響,從而探索膽(dan)(dan)道(dao)疾(ji)(ji)病(bing)的病(bing)因和有效的防治方法。

人工膽汁(Bile juice,pH 8.1)