膠原蛋白是脊椎動(dòng)物和無(wú)脊椎動(dòng)物體內(nèi)含量最豐富的蛋白質(zhì),屬于結(jié)構(gòu)蛋白質(zhì),其中富含甘氨酸、脯氨酸與羥脯氨酸。它廣泛分布于所有多細(xì)胞動(dòng)物的皮膚、骨骼、軟骨、牙齒、肌腱、血管等中,起到支撐器官、保護(hù)機(jī)體、連接和營(yíng)養(yǎng)等作用。
膠原蛋白及其水解產(chǎn)物現(xiàn)已廣泛應(yīng)用于醫(yī)藥、食品、保健、化妝品等多個(gè)領(lǐng)域。
研磨步驟:
1.把樣品剪切成小片狀;
2.將樣品放入鋼罐中,再將整個(gè)鋼罐放入液氮中速凍;
3.設(shè)置參數(shù)研磨頻率,時(shí)間就可研磨成粉狀;
4.從凈信研磨儀取出樣本,繼續(xù)后續(xù)實(shí)驗(yàn)
實(shí)驗(yàn)結(jié)果:液氮輔助研磨,可以使樣品研磨得更充分。
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