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新疆黑桑椹多糖的提取和測定
摘 要: 本實(shí)驗(yàn)采用熱水浸提法從新疆黑桑椹中提取多糖,利用正交試驗(yàn)設(shè)計(jì)法優(yōu)選最佳提取工藝
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響應(yīng)曲面法優(yōu)化灰樹花水溶性多糖提取工藝的研究
摘要:在單因素試驗(yàn)的基礎(chǔ)上,利用響應(yīng)曲面法對灰樹花多糖提取工藝參數(shù)進(jìn)行優(yōu)化研究。
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凍干過程中管制西林瓶破損現(xiàn)象
由于整個(gè)凍干過程會處于一定溫差范圍內(nèi)進(jìn)行,因此一些觀點(diǎn)認(rèn)為,這種破損現(xiàn)象與包材熱應(yīng)力有關(guān),可以通過改變西林瓶的熱性能來減少發(fā)生概率。
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可調(diào)諧二極管激光吸收光譜(TDLAS)在藥物凍干過程監(jiān)測中的應(yīng)用
TDLAS在凍干領(lǐng)域可測定和監(jiān)測如下數(shù)據(jù)信息: - 升華界面的產(chǎn)品溫度 - 樣品瓶底部中心的產(chǎn)品溫度 - 產(chǎn)品的干燥阻力 - 殘留的水分 - 主干燥和次級干燥終點(diǎn) - 樣品瓶熱傳遞系數(shù) - 連續(xù)監(jiān)測冰層及干燥層厚度 - 凍干設(shè)備氣流不受阻的最大升華能力
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疫苗的冷凍干燥-在配方和工藝開發(fā)中的挑戰(zhàn)和概念
Vaccination prevents millions of deaths from infectious diseases per year; however, there are still millions of people who die from these diseases due to weak thermostability demanding cold chains, long-term stability issues and distribution challenges. All these limitations can be overcome by creating a dry product through lyophilization. With the urgency to develop a coronavirus vaccine, it is a crucial time to discuss the process of freeze-drying vaccines.
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