品牌 | 其他品牌 | 貨號 | 半胱氨酸鹽酸鹽的生產廠家 |
---|---|---|---|
規格 | 25kg/袋裝或桶裝 | 供貨周期 | 現貨 |
主要用途 | 食品,保健品,飲料等提高食品營養價值 | 應用領域 | 醫療衛生,食品,生物產業,紡織皮革,制藥 |
半胱氨酸鹽酸鹽的生產廠家
一、簡(jian)介(jie)
產(chan)品名稱:L-半(ban)胱氨酸鹽酸鹽
別名(ming):L-半胱氨酸鹽酸鹽(無(wu)水(shui)物)
級(ji)別:食(shi)品級(ji)
二、性(xing)狀
無色至白色結晶或結晶性粉末,有輕微特殊氣味酸味,熔點175℃(分解)發(fa)。溶(rong)(rong)(rong)于水,水溶(rong)(rong)(rong)液(ye)(ye)呈酸性,1%溶(rong)(rong)(rong)液(ye)(ye)的pH值約為1.7,0.1%溶(rong)(rong)(rong)液(ye)(ye)pH值約為2.4。亦可溶(rong)(rong)(rong)于醇、氨(an)水和乙(yi)酸,不溶(rong)(rong)(rong)于醚、丙酮、苯(ben)等。具有還原性,有抗氧化和防止(zhi)非酶褐變的作用(yong)。
三(san)、用(yong)途
面(mian)粉處理劑(ji)(ji)、營(ying)養增補劑(ji)(ji)。作為(wei)營(ying)養增補劑(ji)(ji),其添(tian)(tian)加(jia)量(liang)不應超(chao)過總蛋(dan)白質(zhi)含量(liang)的(de)2.3%(包(bao)括L-胱氨酸)。我國《食品添(tian)(tian)加(jia)劑(ji)(ji)使(shi)用(yong)(yong)(yong)(yong)(yong)衛生標準》(GB2760―1996)中規定(ding):用(yong)(yong)(yong)(yong)(yong)于(yu)發酵面(mian)制品,0.06g/kg。參(can)考用(yong)(yong)(yong)(yong)(yong)量(liang):具體使(shi)用(yong)(yong)(yong)(yong)(yong)時可加(jia)入(ru)面(mian)粉中混勻,或在(zai)和面(mian)時加(jia)入(ru)。通常,用(yong)(yong)(yong)(yong)(yong)于(yu)面(mian)包(bao)的(de)添(tian)(tian)加(jia)量(liang)為(wei)0.02~0.045g/kg;用(yong)(yong)(yong)(yong)(yong)于(yu)天(tian)然果(guo)汁(zhi),可防止(zhi)維生素C的(de)氧化和褐變,用(yong)(yong)(yong)(yong)(yong)量(liang)為(wei)0.2~0.8g/kg。
鑒(jian)定(ding)方(fang)法:
①向(xiang)5mL L-半胱(guang)氨酸鹽酸鹽溶(rong)液(1 g/ L)中添加0.5 mL吡啶(ding)和1 mL茚(yin)三酮溶(rong)液(1 g/100 mL),加熱5min呈現紫至紫褐(he)色。
1、半(ban)(ban)胱氨酸鹽(yan)(yan)酸鹽(yan)(yan)可溶于水,制成針劑或(huo)片劑可迅(xun)速被人(ren)體所吸收。它是羧甲基半(ban)(ban)胱氨酸和乙酰基半(ban)(ban)胱氨酸生產的主(zhu)要原料(liao)。
2、在臨床(chuang)上能(neng)(neng)白血(xue)球減少(shao)癥,及由于(yu)施用(yong)(yong)和(he)放射性所引起的(de)白血(xue)球減少(shao)癥,以(yi)及重金屬中(zhong)毒(du)解毒(du)劑(ji)。此外還用(yong)(yong)于(yu)中(zhong)毒(du)性肝(gan)炎、血(xue)小板(ban)減少(shao)、皮膚(fu)潰瘍(yang),并能(neng)(neng)預(yu)防肝(gan)壞(huai)死(si)癥,有氣管炎和(he)化痰(tan)作用(yong)(yong),對(dui)丙稀晴和(he)芳(fang)香(xiang)族中(zhong)毒(du)有解毒(du)作用(yong)(yong),有預(yu)防放射線損傷(shang)的(de)作用(yong)(yong)
3、面(mian)包(bao)改良劑:促進發酵、防(fang)止氧化的作用。在食(shi)品的方(fang)面(mian)作為(wei)面(mian)包(bao)速成促進劑,能(neng)改變(bian)面(mian)包(bao)和(he)食(shi)品的風味。
半胱氨酸鹽酸鹽的生產廠家
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