CN110251582A - 肠道菌群构成比率调节剂、药品、饮食品及肠道菌群构成比率的调节方法 - Google Patents
肠道菌群构成比率调节剂、药品、饮食品及肠道菌群构成比率的调节方法 Download PDFInfo
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Abstract
本发明提供一种肠道菌群构成比率调节剂、药品、饮食品及肠道菌群构成比率的调节方法,属于微生物技术领域,肠道菌群构成比率调节剂,包括通过如下制备方法制得的五味子乙醇提取物:将五味子粉末加入50‑80%乙醇溶液,混合均匀后经动态高压微射流处理,然后超声波提取,浓缩,干燥,即得五味子提取物。本发明肠道菌群构成比率调节剂所用五味子乙醇提取物不仅能够促进益生菌的生长,抑制非正常菌的生长,从而维持肠道正常菌群比例,而且能减少炎症因子的释放,利于维护正常的肠道屏障功能,改善机体的脂质代,减轻机体的质量,从而使制得的肠道菌群构成比率调节剂具有调整肠道菌群构成比率、降低体重的作用。
Description
技术领域
本发明属于微生物技术领域,具体涉及肠道菌群构成比率调节剂、药品、饮食品及肠道菌群构成比率的调节方法。
背景技术
肠道菌群是指在肠道中的微生态中所有的肠道微生物的总称,其种类很丰富,且数量巨大。在人体的胃和肠道中大约寄居着10000多种的细菌,其数量有1014。人体的肠道细菌的数量比人体自身的细胞含量多出10倍,其携带的基因数是人体细胞数的100倍,菌体总量占人体质量的1/60-1/50。肠道微生物在人体的含量高达1014/mL之多。这些肠道微生物及微生物分泌代谢的次级代谢物直接或间接的参与到机体的物质代谢吸收及能量的转化。然而,肠道菌群在人体内相对机体的其他器官或系统来说,肠道菌群是一个相对独立的微生态系统,因此也被成为人体的“第二器官”或“被遗忘的器官”。在人的机体没有出现异常的稳态条件下,人体的肠道里的菌群数量、种类以及菌群结构是处于一个相对稳定的状态的。然而,当机体内的肠道菌群的稳态由于人体的生活方式发生改变、人体的饮食结构发生变化、人的心情发生剧烈转变、人的心理发生改变等等人体的自身因素以及外界环境发生改变从而导致人体内的肠道菌群的稳态遭到刺激,使原先机体处于正常健康的肠道菌群稳态失去平衡,人的机体将会作出相应的反应和应答,机体内代谢系统和免疫系统将发生紊乱甚至患上与之相关的疾病。比如,在健康正常的人在患上肥胖病后,肠道菌群中属厚壁菌门的细菌的数量呈上升趋势,然而,肠道菌群中属拟杆菌门的细菌的数量则呈下降的趋势。此外,在有肥胖病的人体内的肠道菌群的物种丰度及菌群多样性相对偏瘦的正常健康人而言,呈明显的显著性降低。由此可见,维护正常的肠道屏障功能对于预防肥胖症的发生至关重要。
发明内容
本发明的目的在于提供一种五味子乙醇提取物在制备肠道菌群构成比率调节剂中的用途,所用五味子乙醇提取物不仅能够促进益生菌的生长,抑制非正常菌的生长,从而维持肠道正常菌群比例,而且能减少炎症因子的释放,利于维护正常的肠道屏障功能,改善机体的脂质代,减轻机体的质量。
本发明为实现上述目的所采取的技术方案为:
五味子乙醇提取物在制备肠道菌群构成比率调节剂中的用途,所用五味子乙醇提取物的制备方法为:将五味子粉末加入50-80%乙醇溶液,混合均匀后经动态高压微射流处理,然后超声波提取,浓缩,干燥,即得五味子提取物。
肥胖诱发肠道菌群紊乱导致致病菌增加,破坏肠黏膜屏障的通透性也使进入血液的脂蛋白酯酶(LPL)增加,进一步加重内毒素血症,维护正常的肠道屏障功能对于预防肥胖症的发生至关重要。而肠道屏障是肠道菌群与宿主之间相互作用的重要桥梁,肠黏膜屏障功能发生障碍时,肠内细菌及内毒素易位是导致多种疾病的重要因素。由此可见,改善肠道菌群对肠道屏障的维护也具有重要意义。本发明用五味子乙醇提取物具有益生菌作用,不仅能够促进乳酸菌、双歧杆菌以及拟杆菌的生长,抑制非正常菌的生长,维持肠道正常菌群比例,对机体的脂质代谢产生积极的影响,减轻肥胖,从而改善代谢紊乱,治疗代谢相关性疾病;而且能够显著抑制脂肪细胞分泌的趋化因子MCP-1及脂肪组织中由巨噬细胞所分泌的炎症因子TNF-α,1L-1β,1L-6的mRNA表达量,减少炎症因子的释放,利于维护正常的肠道屏障功能。此外,本发明用五味子乙醇提取物还能提升肠道脂肪细胞中脂肪细胞因子FIAFmRNA的表达,抑制肠道与肝脏中LPL mRNA的表达,从而控制脂滴的积聚而抑制脂肪的合成,改善机体的脂质代谢;能够提升肝脏组织中胆固醇7α-羟化酶Cyp7α1mRNA的表达水平,降低硬脂酰辅酶A去饱和酶1 SCD1 mRNA的表达,亦即通过控制脂肪酸和胆固醇分解代谢通路来改善机体能量代谢,改善机体的脂质代,减轻机体的质量。而本发明制备过程中动态高压微射流的使用能够提高提取物中木脂素类物质的含量,尤其是五味子醇甲和五味子酯甲的含量。
优选地,动态高压微射流的压力为150-200MPa。
优选地,五味子粉末和70-80%乙醇溶液的料液比为1:5-10(g/mL);动态高压微射流处理1-2次;超声波提取10-30min。
优选地,五味子乙醇提取物中五味子醇甲的含量≥12.50mg/g;五味子酯甲的含量≥1.65mg/g。
本发明还公开一种能产生明显的体重降低效果的肠道菌群构成比率调节剂,含有上述五味子乙醇提取物。
优选地,调节剂还包括至少一种乳杆菌属的益生菌和/或至少一种双歧杆菌属的益生菌。
更优选地,乳杆菌属的益生菌选自鼠李糖乳杆菌、类干酪乳杆菌、路氏乳杆菌、嗜酸乳杆菌、瑞士乳杆菌、干酪乳杆菌、唾液乳杆菌、植物乳杆菌、发酵乳杆菌或约氏乳杆菌。
更优选地,双歧杆菌属的益生菌选自乳酸双歧杆菌、长双歧杆菌、短双歧杆菌或动物双歧杆菌。
更进一步优选地,调节剂包含如下成分及其重量份:类干酪乳杆菌22-45份;干酪乳杆菌5-15份;长双歧杆菌10-30份;五味子提取物2-15份。
优选地,益生菌制剂还含有益生元、氨基酸、维生素或矿物质。
本发明还公开一种用于调节肠道菌群构成比率的药品,包含上述肠道菌群构成比率调节剂。上述药品的剂型例如可列举出:散剂、细颗粒剂、颗粒剂、片剂、包衣片剂、胶囊剂、糖衣片、液体制剂等,没有特别限制。另外,药品的组成没有特别限制,例如还可以包含:赋形剂、结合剂、润滑剂、崩解剂、吸收促进剂、乳化剂、稳定化剂、防腐剂等各种添加剂等。另外,前述药品可以利用通常使用的制剂化技术等来制造。给药上述药品的动物种类,没有特别限制,例如可列举出:人;或者猴、牛、猪、狗、猫等非人的哺乳类;鸡等鸟类;鱼类和贝类等。给药方法,没有特别限制,例如可列举出:口服给药或非口服给药,前述非口服给药例如可列举出:经皮吸收、注射、栓剂给药等。药品的给药量例如可以根据动物种类、年龄等进行适宜设定,没有特别限制。本发明的肠道菌群构成比率的调节方法中,给药方法和给药对象等例如是同样的。
本发明还公开一种具有肠道菌群构成比率的调节功能的饮食品,包含上述肠道菌群构成比率调节剂。除了包含本发明的肠道菌群构成比率调节剂以外没有任何限制。本发明中,饮食品包括通常食品、保健功能食品。通常食品没有特别限定,例如可列举出:谷物加工食品、蔬菜加工食品、水果加工食品、肉食加工食品、水产物加工食品、乳制品、饮料、健康食品等。另外,本发明的饮食品还可以以例如原材料、添加剂等形式包含前述肠道菌群构成比率调节剂。谷物加工食品没有特别限制,例如可列举出:小麦粉、米粉、谷物棒、米饼、碎块儿年糕、饼干等。蔬菜加工食品没有特别限制,例如可列举出:蔬菜糊、干燥蔬菜、蔬菜汤等。水果加工食品没有特别限制,例如可列举出:水果泥、干燥水果等。肉食加工食品没有特别限制,例如可列举出:火腿、熏肉、香肠等。水产物加工食品没有特别限制,例如可列举出:咸烹海味、咸鱼干、鱼肉香肠、鱼肉山芋饼、鱼糕、圆筒状鱼糕等。乳制品没有特别限制,例如可列举出:乳饮料、酸奶、冰激凌、乳酪等。饮料没有特别限制,例如可列举出:清凉饮料、绿茶、红茶、咖啡等。另外,保健功能食品通常也称为功能性食品。保健功能食品,例如可列举出:特定保健用食品、营养功能食品、功能性展示食品等。
本发明还公开一种肠道菌群构成比率的调节方法,包括如下工序:
给药包含上述肠道菌群构成比率调节剂的工序。
与现有技术相比,本发明的有益效果为:本发明。
本发明采用了上述技术方案提供肠道菌群构成比率调节剂、药品、饮食品及肠道菌群构成比率的调节方法,弥补了现有技术的不足,设计合理,操作方便。
附图说明
图1为本发明试验例1中五味子乙醇提取物中五味子醇甲和五味子酯甲含量的测定结果;
图2为本发明试验例2中各组小鼠肠道菌群的检测结果;
图3为本发明试验例2中各组小鼠肠道炎症因子的mRNA表达量的检测结果;
图4为本发明试验例2中各组小鼠肠道FIAF和LPL mRNA表达量的检测结果;
图5为本发明试验例2中各组小鼠肝脏Cyp7α1和SCD1 mRNA表达量的检测结果;
图6为本发明试验例3中各组小鼠体重。
具体实施方式
以下由特定的具体实施例说明本发明的实施方式,熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。
除非另外说明,本发明中所公开的试验方法、检测方法、制备方法均采用本技术领域常规的分子生物学、生物化学、染色质结构和分析、分析化学、细胞培养、重组DNA技术及相关领域的常规技术。
实施例1:
五味子乙醇提取物的制备方法为:按料液比为1:5(g/mL)将五味子粉末加入50%乙醇溶液,混合均匀后经150MPa的动态高压微射流处理1次,然后超声波提取10min,浓缩,干燥,即得五味子提取物。
实施例2:
五味子乙醇提取物的制备方法为:按料液比为1:10(g/mL)将五味子粉末加入80%乙醇溶液,混合均匀后经200MPa的动态高压微射流处理2次,然后超声波提取30min,浓缩,干燥,即得五味子提取物。
实施例3:
五味子乙醇提取物的制备方法为:按料液比为1:7(g/mL)将五味子粉末加入60%乙醇溶液,混合均匀后经160MPa的动态高压微射流处理1次,然后超声波提取20min,浓缩,干燥,即得五味子提取物。
实施例4:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌32份;干酪乳杆菌8份;长双歧杆菌17份;实施例3五味子乙醇提取物6份。
实施例5:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌22份;干酪乳杆菌5份;长双歧杆菌10份;实施例1五味子提取物2份。
实施例6:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌45份;干酪乳杆菌15份;长双歧杆菌30份;实施例2五味子提取物15份。
实施例7:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌32份;干酪乳杆菌8份;长双歧杆菌17份;实施例3五味子乙醇提取物6份。
实施例8:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌32份;干酪乳杆菌8份;长双歧杆菌17份;实施例3五味子乙醇提取物6份。
对比例1:
五味子乙醇提取物的制备方法为:按料液比为1:7(g/mL)将五味子粉末加入75%乙醇溶液,混合均匀后超声波提取20min,浓缩,干燥,即得五味子提取物。
对比例2:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌32份;干酪乳杆菌8份;长双歧杆菌17份;对比例1五味子乙醇提取物6份。
对比例3:
肠道菌群构成比率调节剂,包含如下成分及其重量份:类干酪乳杆菌32份;干酪乳杆菌8份;长双歧杆菌17份。
试验例1:
五味子乙醇提取物中五味子醇甲和五味子酯甲含量的测定
色谱条件:色谱柱:HypersinBDSC8柱(150mm×4.6mm,5μm);柱温30℃;流动相:甲醇-0.1%醋酸(70:30);流速:1.0mL/min;检测波长:235nm;进样量:20μL。
标品溶液的制备:分别称取5mg五味子醇甲、五味子酯甲标准品,分别用甲醇溶解并定容,得到1mg/mL的五味子醇甲、五味子酯甲标品溶液,依次稀释得0.01、0.02、0.03、0.04、0.05mg/mL的标品溶液,以上溶液过0.45μm微孔滤膜,进行HPLC分析测定。五味子醇甲的色谱图见图1A,分别以质量浓度x(ng/μL)为横坐标,峰面积y(μV·s)为纵坐标进行回归分析,五味子醇甲标准曲线方程及相关系数为:y1=4.03×x1-7.376,r=0.9993。五味子酯甲的色谱图见图1B,标准曲线方程及相关系数为:y1=5.17×x1-1.76,r=0.9995。
样品溶液的制备:分别称取5mg实施例3和对比例1五味子提取物于5mL避光容量瓶中,甲醇溶解定容,摇匀,过0.45μm微孔滤膜稀释得样品溶液,然后进行HPLC分析测定。
样品的测定:精密吸取上述样品溶液,在色谱条件下进样20μL分析测定,实施例3样品色谱图见图1C,对比例1样品色谱图见图1D,记录色谱峰面积,以标准曲线方程求出样品中五味子醇甲和五味子酯甲的含量。实施例3样品中五味子醇甲和五味子酯甲的含量分别为12.80mg/g、1.72mg/g;对比例1样品中五味子醇甲和五味子酯甲的含量分别为11.10mg/g、1.25mg/g。由此可知,动态高压微射流的作用能够提高提取物中木脂素类物质的含量,尤其是五味子醇甲和五味子酯甲的含量。
试验例2:
1.动物分组:
选取8周龄的健康雄性C57BL/6小鼠30只,体质量(25±2)g,饲养在室温18~22℃,相对湿度50~60%,自由摄食和饮水,每天给予充足的饮水和相应试验方案的饲料,单笼饲养,12h光照和12h黑暗交替,按随机区组设计分为正常组、模型组、试验组以及对比组4组,每组10只。正常组用正常饲料饲养(总卡路里3.25kcal/g,脂肪中卡路里占比10%),模型组、试验组及对比组均用高脂肪的饲料饲养(总卡路里3.68kcal/g,脂肪中卡路里占比50%),试验组和对比组分别小鼠灌胃实施例3和对比例1五味子乙醇提取物(200mg/kg),灌胃体积为20mL/kg,每天1次,连续12周,其他2组灌胃等量的生理盐水。末次给药后,小鼠禁食6h后通过颈椎脱臼法处死,分离其肠、肝脏及内脏脂肪组织,保存在液氮中,用于后续的研究分析。
2.五味子乙醇提取物对肠道菌群的调节作用
采用荧光原位杂交法检测肠道主要菌群:
1)固定:结肠内容物与磷酸盐缓冲液以1:9的比例混合并涡旋3min,吸取0.2mL的悬浮液加入至3%的福尔马林中储存进行固定,4℃过夜;
2)探针:拟杆菌特异性探针(Bac303,5'-CCAATGTGGGGGACCTT-3'),乳酸菌特异性探针(Lab158,5'-GGTATTAGCACTGTTTCCA-3'),双歧杆菌特异性探针(Bif164,5'-CATCCGGCATTACCACCC-3'),粪肠球菌特异性探针(Enf191,5'-GAAAGCGCCTTTCACTCTTATGC-3'),以及细菌通用探针(EUB388,5'-GCTGCCTCCCGTAGGAGT-3')。采用上述探针对肠道主要菌群进行计数。细菌通用探针用异硫氰酸荧光素(FITC)标记,其他探针均用荧光素Cy3标记;
3)杂交反应:取20μL探针、10μL亲和素量子点与50μL杂交缓冲液(55mmol/L NaCl,25mmol/L Tris-HCl,pH 7.5,甲酰胺40%,0.01%SDS)混合,最终探针浓度为4ng/μL;
4)温育及检测:杂交后,吸取150μL杂交溶液,离心15min,然后再加入清洗缓冲液(55mmol/LNaCl,25mmol/L Tris-HCl,pH 8.0,5mmol/LEDTA,0.01%SDS)温育30min,吸取200μL加入到500μL的PBS中,用流式细胞仪进行检测。
各组小鼠肠道菌群的检测结果见图2,可以看出,与正常组比较,模型组小鼠肠道菌群中乳酸菌、双歧杆菌显著降低,粪肠球菌显著升高;与模型组比较,试验组小鼠肠道菌群中乳酸菌、双歧杆菌显著升高,粪肠球菌显著降低;与模型组比较,对比组小鼠肠道菌群中乳酸菌、双歧杆菌和粪肠球菌的变化不明显。由此可知,本发明用五味子乙醇提取物具有益生菌作用,能够促进乳酸菌、双歧杆菌以及拟杆菌的生长,抑制非正常菌的生长,维持肠道正常菌群比例,对机体的脂质代谢产生积极的影响,减轻肥胖,从而改善代谢紊乱,治疗代谢相关性疾病。
3.五味子乙醇提取物对炎症因子的mRNA表达量的调节作用
总RNA采用Trizol试剂盒分别从小肠和肝组织中提取,随后用脱氧核糖核苷酸酶处理。采用实时荧光定量PCR法,用qPCR试剂盒对总RNA进行逆转录和PCR扩增。每5μL cDNA反应液与1ng总RNA和900nM基因特异性引物按照以下参数进行PCR检测,95℃5min循环1次,95℃20s循环45次,60℃30s循环45次,72℃20s循环45次,72℃5min循环1次。TNF-α引物序列:上游CCCTCACACTCAGATCATCTTCT,下游GCTACGACGTGGGCTACAG;1L-1β引物序列:上游GCAACTGTTCCTGAACTCAACT,下游ATCTTTTGGGGTCCGTCAACT;1L-6引物序列:上游TAGTCCTTCCTACCCCAATTTCC,下游TTGGTCCTTAGCCACTCCTTC;MCP-1引物序列:上游TCACTGAAGCCAGCTCTCTCT,下游GTGGGGCGTTAACTGCAT;GAPDH引物序列:上游GCATCCACTGGTGCTGCC,下游TCATCATACTTGGCAGGTTTC。
各组小鼠肠道炎症因子的mRNA表达量的检测结果见图3,可以看出,与正常组比较,模型组小鼠肠道炎症因子MCP-1、TNF-α、1L-1β、1L-6的mRNA表达量显著升高;与模型组比较,试验组小鼠肠道炎症因子MCP-1、TNF-α、1L-1β、1L-6的mRNA表达量显著降低;与模型组比较,对比组小鼠肠道炎症因子MCP-1、TNF-α、1L-1β、1L-6的mRNA表达量的变化不明显。由此可知,本发明用五味子乙醇提取物能够显著抑制脂肪细胞分泌的趋化因子MCP-1及脂肪组织中由巨噬细胞所分泌的炎症因子TNF-α,1L-1β,1L-6的mRNA表达量,减少炎症因子的释放,利于维护正常的肠道屏障功能。
4.五味子乙醇提取物对肠道FIAF和LPL mRNA表达量的影响
方法参见本试验例中3部分,FIAF引物序列:上游5'-CTCTGGGATCTCCACCATTT-3',下游5'-TTGGGGATCTCCGAAGCCAT-3';LPL引物序列:上游5'-TACCGCAGCTAGGAATAATGG-3',下游5'-CGGAACTACGACGGTAT-3’;内参β-Actin引物序列:上游5'-CATCCTGCGTCTGGACCTGG-3',下游5'-TAATGTCACGCACGATTTCC-3'。
各组小鼠肠道FIAF和LPL mRNA表达量的检测结果见图4,可以看出,与正常组比较,模型组小鼠肠道FIAF mRNA的表达量显著降低,LPL mRNA表达量显著升高;与模型组比较,试验组小鼠肠道FIAF mRNA的表达量显著提升,LPL mRNA表达量显著降低;与模型组比较,对比组小鼠肠道FIAF和LPL mRNA表达量的变化不明显。由此可知,本发明用五味子乙醇提取物能提升肠道脂肪细胞中脂肪细胞因子FIAF mRNA的表达,抑制肠道与肝脏中LPLmRNA的表达,从而控制脂滴的积聚而抑制脂肪的合成,改善机体的脂质代谢。
5.五味子乙醇提取物对肝脏Cyp7α1和SCD1 mRNA表达量的影响
方法参见本试验例中3部分,FIAF引物序列:上游5'-CTCTGGGATCTCCACCATTT-3',下游5'-TTGGGGATCTCCGAAGCCAT-3';LPL引物序列:上游5'-TACCGCAGCTAGGAATAATGG-3',下游5'-CGGAACTACGACGGTAT-3’;内参β-Actin引物序列:上游5'-CATCCTGCGTCTGGACCTGG-3',下游5'-TAATGTCACGCACGATTTCC-3'。
各组小鼠肝脏Cyp7α1和SCD1 mRNA表达量的检测结果见图5,可以看出,与正常组比较,模型组小鼠肝脏Cyp7α1mRNA的表达量显著降低,SCD1 mRNA表达量显著升高;与模型组比较,试验组小鼠肝脏Cyp7α1mRNA的表达量显著提升,SCD1 mRNA表达量显著降低;与模型组比较,对比组小鼠肝脏Cyp7α1和SCD1 mRNA的表达量的变化不明显。由此可知,本发明用五味子乙醇提取物能抑制脂肪细胞中胆固醇7α-羟化酶Cyp7α1mRNA和硬脂酰辅酶A去饱和酶1 SCD1 mRNA的表达,进一步抑制脂肪的合成,改善机体的脂质代,减轻机体的质量。
本发明用五味子乙醇提取物产生之所以上述试验效果,或许是因为在制备过程中动态高压微射流的作用使得五味子中某些成分的结构变化发生,并且产生新的活性,同时与高含量的五味子醇甲和五味子酯甲发生协同作用,从而使五味子乙醇提取物实现上述试验效果。
试验例3:
肠道菌群构成比率调节剂对体重的影响
选取8周龄的健康雄性C57BL/6小鼠30只,体质量(25±2)g,饲养在室温18~22℃,相对湿度50~60%,自由摄食和饮水,每天给予充足的饮水和相应试验方案的饲料,单笼饲养,12h光照和12h黑暗交替,按随机区组设计分为正常组、模型组、试验组以及对比组4组,每组10只。正常组用正常饲料饲养(总卡路里3.25kcal/g,脂肪中卡路里占比10%),模型组、试验组及对比组均用高脂肪的饲料饲养(总卡路里3.68kcal/g,脂肪中卡路里占比50%),试验组和对比组分别小鼠灌胃实施例4和对比例2肠道菌群构成比率调节剂(500mg/kg),灌胃体积为20mL/kg,每天1次,连续12周,其他2组灌胃等量的生理盐水。毎周称量并记录体重,体重的变化情况如图6所示,
各组小鼠体重的结果见图6,可以看出,与正常组比较,模型组小鼠的体重显著升高;与模型组比较,试验组小鼠的重量显著降低;与模型组比较,对比组小鼠的重量变化不明显。由此可知,本发明肠道菌群构成比率调节剂能产生明显的体重降低效果。
上述实施例中的常规技术为本领域技术人员所知晓的现有技术,故在此不再详细赘述。
以上实施方式仅用于说明本发明,而并非对本发明的限制,本领域的普通技术人员,在不脱离本发明的精神和范围的情况下,还可以做出各种变化和变型。因此,所有等同的技术方案也属于本发明的范畴,本发明的专利保护范围应由权利要求限定。
Claims (10)
1.五味子乙醇提取物在制备肠道菌群构成比率调节剂中的用途,其特征在于:五味子乙醇提取物的制备方法为:将五味子粉末加入50-80%乙醇溶液,混合均匀后经动态高压微射流处理,然后超声波提取,浓缩,干燥,即得五味子提取物。
2.根据权利要求1所述的用途,其特征在于:所述动态高压微射流的压力为150-200MPa。
3.根据权利要求1或2所述的用途,其特征在于:所述五味子乙醇提取物中五味子醇甲的含量≥12.50mg/g;五味子酯甲的含量≥1.65mg/g。
4.肠道菌群构成比率调节剂,其特征在于:含有权利要求1或2或3所述的五味子乙醇提取物。
5.根据权利要求1所述的肠道菌群构成比率调节剂,其特征在于:所述调节剂还包括至少一种乳杆菌属的益生菌和/或至少一种双歧杆菌属的益生菌。
6.根据权利要求1所述的肠道菌群构成比率调节剂,其特征在于:所述乳杆菌属的益生菌选自鼠李糖乳杆菌、类干酪乳杆菌、路氏乳杆菌、嗜酸乳杆菌、瑞士乳杆菌、干酪乳杆菌、唾液乳杆菌、植物乳杆菌、发酵乳杆菌或约氏乳杆菌。
7.根据权利要求1所述的肠道菌群构成比率调节剂,其特征在于:所述双歧杆菌属的益生菌选自乳酸双歧杆菌、长双歧杆菌、短双歧杆菌或动物双歧杆菌。
8.用于调节肠道菌群构成比率的药品,其特征在于:包含权利要求4-7中任一项所述的肠道菌群构成比率调节剂。
9.具有肠道菌群构成比率的调节功能的饮食品,其特征在于:包含权利要求4-7中任一项所述的肠道菌群构成比率调节剂。
10.肠道菌群构成比率的调节方法,其特别在于:包括如下工序:
给药包含权利要求4-7中任一项所述的肠道菌群构成比率调节剂的工序。
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