The invention relates to a marine fungus fermentation extract and its application as anti Alzheimer's medicine. The extract is prepared by the following steps: (1) under the aseptic condition, the marine fungi Alternaria sp.W 1 is inoculated into the PD liquid medium, the constant temperature rocking bed is oscillating, the temperature is 25 30 degrees, the rocking speed of the bed is 150 180r/m In, the incubation time was 2 4D, seed liquid was obtained; (2) the seed liquid obtained by step (1) was inoculated into the Cha's medium, the culture medium pH was 4 8, the inoculation amount was 5 20%, the culture temperature was 22 34, and the culture time was 6, and the fermentation material was 6, and (3) the fermentation material obtained by the step (2) was filtered by 3 5 layer sterile gauze, and filtrate was obtained. After being concentrated by the rotary evaporator, the extract was extracted with ethyl acetate for 2 times and 4 times, combined with organic phase and concentrated by rotary evaporator.
【技术实现步骤摘要】
一种海洋真菌发酵提取物及其作为抗老年痴呆药物的应用
本专利技术属于海洋微生物与海洋药物领域,具体涉及一种海洋真菌发酵提取物及其作为抗老年痴呆药物的应用。
技术介绍
阿尔茨海默病(AD),即老年痴呆,是一种大脑神经系统慢性退行性疾病。其主要临床表现为记忆力逐渐衰退、认知功能发生障碍、表情淡漠、计算能力障碍、行为异常和社交障碍等。老年痴呆病导致老年人精神残疾,已然成为一个严重的社会问题。目前研究表明,导致阿尔茨海默病的病因颇多,主要有胆碱能缺失学说、氧化应激学说、基因突变学说、炎症因子学说等。“胆碱能缺失学说”主张大脑中枢胆碱能神经递质与记忆和认知功能相关,胆碱能神经递质——乙酰胆碱在AD患者的大脑中缺失,乙酰胆碱酯酶活性增强。目前为止临床上使用最广泛的药物,主要为单靶向的乙酰胆碱酯酶抑制剂,如他克林、多奈哌齐、卡巴拉汀等,但疗效不是很理想且多数价格昂贵。因此寻找来源广泛、高效的多靶向的抗老年痴呆药物迫在眉睫。海带,别名江白菜、昆布,是一种生长在海底岩石的澡类。内生真菌生长繁殖时间短,可通过发酵进行大规模生产,因此研究内生真菌及其代谢产物,从中寻找天然活性物质,不仅前 ...
【技术保护点】
一种提取物,其特征在于该提取物的制备方法,包括如下步骤:(1)在无菌条件下,将海洋真菌Alternaria sp.W‑1接种到PD液体培养基中,恒温摇床振荡培养,温度为25‑30℃,摇床转速为150‑180r/min,培养时间为2‑4d,得种子液;(2)将步骤(1)得到的种子液接种到察氏培养基中,培养基pH为4.0‑8.0,接种量为5‑20%,培养温度为22‑34℃,培养时间为6‑14d,得发酵物;(3)将步骤(2)得到的发酵物用3‑5层无菌纱布过滤,得滤液,经旋转蒸发仪浓缩后,用乙酸乙酯萃取2‑4次,合并有机相,经旋转蒸发仪浓缩即得所述提取物。
【技术特征摘要】
1.一种提取物,其特征在于该提取物的制备方法,包括如下步骤:(1)在无菌条件下,将海洋真菌Alternariasp.W-1接种到PD液体培养基中,恒温摇床振荡培养,温度为25-30℃,摇床转速为150-180r/min,培养时间为2-4d,得种子液;(2)将步骤(1)得到的种子液接种到察氏培养基中,培养基pH为4.0-8.0,接种量为5-20%,培养温度为22-34℃,培养时间为6-14d,得发酵物;(3)将步骤(2)得到的发酵物用3-5层无菌纱布过滤,得滤液,经旋转蒸发仪浓缩后,用乙酸乙酯萃取2-4次,合并有机相,经旋转蒸发仪浓缩即得所述提取物。2.一种药物组合物,其特征在于该药物组合物以权利要求1所述的提取物作为有效成分。3.权...
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