CN113577161B - 一种分段式发酵制备畜禽抗病毒中草药制剂的方法 - Google Patents
一种分段式发酵制备畜禽抗病毒中草药制剂的方法 Download PDFInfo
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Abstract
本发明属于畜禽抗病毒制剂技术领域,具体公开一种分段式发酵制备畜禽抗病毒中草药制剂的方法。将黄连20‑25份、黄芩10‑15份、黄柏15‑20份和连翘10‑15分别粉碎;将黄芩和连翘进行提取,得提取液;将提取液和凝结芽孢杆菌、地衣芽孢杆菌和植物乳杆菌三种益生菌的发酵培养液进行混合发酵;将黄芩、连翘提取后的药渣与黄连、黄柏粉混合,用复合发酵液进行拌料并发酵,即得。本发明制备的中草药制剂具有清热解毒、补气益气、巩固根本和增强食欲的功效,可增强提高养殖动物抗病能力,提高养殖动物机体免疫力。本发明制备的微生态制剂还具有绿色无残留的特点,有效提高畜禽养殖效益和养殖质量。
Description
技术领域
本发明属于畜禽抗病毒制剂技术领域,具体涉及一种分段式发酵制备畜禽抗病毒中草药制剂的方法。
背景技术
发酵中药是一种绿色的饲料添加剂,利用益生菌对中草药进行发酵,将中草药中的大分子物质分解转化为小分子物质,可直接被动物消化道吸收利用,从而提高中草药药效,增强其作用效果,是一种极具应用潜力的健康安全的抗生素替代物。
中草药中的有效成分经过提纯后,其中还含有大量不易降解的成分,如果不加以利用,将会对生态环境的污染造成一定的影响。因此,中草药通过合理有效的利用,不仅可以提高资源利用率,节约资源,减少浪费,还可以减少对生态环境造成的污染,中药与益生菌相结合,可以为解决环境污染问题和资源再利用提供一种新的方法。
发明内容
针对上述现有技术的缺陷与不足,本发明的目的在于提供一种分段式发酵制备畜禽抗病毒中草药制剂的方法。
为实现上述目的,本发明采取的技术方案如下:
一种分段式发酵制备畜禽抗病毒中草药制剂的方法,制备步骤如下:
(1)、以重量份计,称取黄连20-25份、黄芩10-15份、黄柏15-20份、连翘10-15份,分别粉碎,备用;
(2)、发酵液制备:
(2.1)、将凝结芽孢杆菌、地衣芽孢杆菌和植物乳杆菌分别活化后扩大培养,获得对应的菌液;
(2.2)、将凝结芽孢杆菌菌液、地衣芽孢杆菌菌液、植物乳杆菌菌液按照(8.5-9.5)∶(1.8-2.2)∶1的体积比混合,获得发酵培养液;
(3)、液态发酵:
(3.1)、提取工艺:将步骤(1)所得的黄芩粉和连翘粉放入水中浸润至少30 min,随后煮沸搅拌提取至少1 h,再离心过滤,获得中药提取液和药渣;
(3.2)、将步骤(2.2)所得发酵培养液和步骤(3.1)所得中药提取液按照1∶(3-5)的体积比加入发酵罐中,再向发酵罐中加入复合培养基,发酵培养液和中药提取液的总量与复合培养基的体积比为(0.5-1.5)∶100,在搅拌速率50-80 rpm、通气量1.5-2.5 vvm条件下发酵48-72 h,获得液体发酵液;所述复培养基的组成为:牛肉膏0.8-1.2 g/L、蛋白胨8-12g/L、酵母浸出物4-6 g/L、葡萄糖18-22 g/L、NaCl 4-6 g/L、柠檬酸三铵4-6 g/L、碳酸氢钾1-3 g/L、吐温-80 0.5-1.5 g/L、七水硫酸镁0.1-0.3 g/L、硫酸锰0.04-0.06 g/L,余量为水;
(4)、固态发酵:
(4.1)、将步骤(3.1)所得药渣与步骤(1)所得黄连粉、黄柏粉混合;
(4.2)、将步骤(3.2)所得液体发酵液和步骤(4.1)所得固体混合物按照1∶(3-5)的质量比进行混合,均匀混合后分装到带有单向排气阀的发酵袋中密封,30-32 ℃发酵48-72h,即得目标产物--畜禽抗病毒中草药制剂。
较好地,步骤(1)中,粉碎至40-80目。
较好地,步骤(2.1)中,凝结芽孢杆菌菌液、地衣芽孢杆菌菌液和植物乳杆菌菌液分别按照下述过程制备获得:
凝结芽孢杆菌菌液和地衣芽孢杆菌菌液的制备:将保存的凝结芽孢杆菌/地衣芽孢杆菌接种到种子斜面培养基中,35-37 ℃活化培养24-48 h ;然后将活化的培养液按体积比(0.5-1.5)∶100接种到基础发酵培养基中,35-37 ℃、150-200 r/min震荡扩大培养24-48 h后,制得凝结芽孢杆菌菌液/地衣芽孢杆菌菌液;所述种子斜面培养基的组成为:蛋白胨8-12 g/L、牛肉膏14-16 g/L、氯化钠14-16 g/L、琼脂16-20 g/L,余量为水;基础发酵培养基的组成为:蛋白胨8-12 g/L、牛肉膏14-16 g/L、氯化钠14-16 g/L,余量为水;
植物乳杆菌菌液的制备:将保存的植物乳杆菌接种到MRS培养基中,35-37 ℃、150-200 r/min震荡活化培养24-48 h;然后将活化的培养液按体积比(0.5-1.5)∶100接种到MRS培养基中,35-37 ℃、150-200 r/min震荡扩大培养24-48 h后,制得植物乳杆菌菌液。
由于液态发酵和固态发酵时所用到的培养基和培养条件不一样,同一种中药液态发酵和固态发酵的产物不一样,pH产量也不一样,有些中药成分在固态发酵过程中pH出现变化或者某些代谢产物下会发生降解,失去功效,因此不是所有的中药都能利用固态发酵处理。本发明在发酵过程中采用分段式发酵,黄芩、连翘先经过提取,然后再将提取液和益生菌进行混合液体发酵,提取后的药渣和黄连、黄柏混合,再与液体发酵液进行混合发酵。
本发明制备的中草药制剂具有清热解毒、补气益气、巩固根本和增强食欲的功效,可增强提高养殖动物抗病能力,提高养殖动物机体免疫力;本发明制备的微生态制剂还具有绿色无残留的特点,有效提高畜禽养殖效益和养殖质量。
具体实施方式
为使本发明更加清楚、明确,以下对本发明进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1
一种分段式发酵制备畜禽抗病毒中草药制剂的方法,制备步骤如下:
(1)、以重量份计,称取黄连20份、黄芩15份、黄柏15份、连翘10份,分别粉碎至60目,备用;
(2)、发酵液制备:
(2.1)、凝结芽孢杆菌菌液、地衣芽孢杆菌菌液和植物乳杆菌菌液分别按照下述过程制备获得:
凝结芽孢杆菌菌液和地衣芽孢杆菌菌液的制备:将保存的凝结芽孢杆菌/地衣芽孢杆菌接种到种子斜面培养基中,37 ℃活化培养24 h ;然后将活化的培养液按体积比1∶100接种到基础发酵培养基中,37 ℃、180 r/min震荡扩大培养48 h后,制得凝结芽孢杆菌菌液/地衣芽孢杆菌菌液;所述种子斜面培养基的组成为:蛋白胨10 g/L、牛肉膏15 g/L、氯化钠15 g/L、琼脂18 g/L,余量为水;基础发酵培养基的组成为:蛋白胨10 g/L、牛肉膏15g/L、氯化钠15 g/L,余量为水;
植物乳杆菌菌液的制备:将保存的植物乳杆菌接种到MRS培养基中,37 ℃、180 r/min震荡活化培养24 h;然后将活化的培养液按体积比1∶100接种到MRS培养基中,37 ℃、180 r/min震荡扩大培养48 h后,制得植物乳杆菌菌液;
(2.2)、将凝结芽孢杆菌菌液、地衣芽孢杆菌菌液、植物乳杆菌菌液按照9∶2∶1的体积比混合,获得发酵培养液;
(3)、液态发酵:
(3.1)、提取工艺:将步骤(1)所得的黄芩粉和连翘粉放入常温水中浸润30 min,随后煮沸搅拌提取1 h,再离心过滤,获得中药提取液和药渣;
(3.2)、将步骤(2.2)所得发酵培养液和步骤(3.1)所得中药提取液按照1∶4的体积比加入发酵罐中,再向发酵罐中加入复合培养基,发酵培养液和中药提取液的总量与复合培养基的体积比为1∶100,在搅拌速率60 rpm、通气量2.0 vvm条件下发酵48 h,获得液体发酵液;所述复培养基的组成为:牛肉膏1.0 g/L、蛋白胨10 g/L、酵母浸出物5 g/L、葡萄糖20g/L、NaCl 5 g/L、柠檬酸三铵5 g/L、碳酸氢钾2 g/L、吐温-80 1.0 g/L、七水硫酸镁0.2 g/L、硫酸锰0.05 g/L,余量为水;
(4)、固态发酵:
(4.1)、将步骤(3.1)所得药渣与步骤(1)所得黄连粉、黄柏粉混合;
(4.2)、将步骤(3.2)所得液体发酵液和步骤(4.1)所得固体混合物按照1∶4的质量比进行混合,均匀混合后分装到带有单向排气阀的发酵袋中密封,30 ℃发酵72 h,即得目标产物--畜禽抗病毒中草药制剂。
对照例1
与实施例1的区别在于:步骤(2.2)中,将凝结芽孢杆菌菌液、地衣芽孢杆菌菌液、植物乳杆菌菌液按照9∶5∶1的体积比混合,获得发酵培养液。其它均同实施例1。
对照例2
与实施例1的区别在于:步骤(2.2)中,将凝结芽孢杆菌菌液、地衣芽孢杆菌菌液、植物乳杆菌菌液按照9∶1∶1的体积比混合,获得发酵培养液。其它均同实施例1。
对实施例1以及对照例1-2所得目标产物中的凝结芽孢杆菌数量、乳酸含量、小肽含量及有效成分黄芩苷含量进行检测,结果见表1,表明:实施例1的菌种比例具有非常优异的发酵效果。
动物实验
1.1试验药品
复方中药:实施例1步骤(1)中黄连、黄芩、黄柏、连翘四味中药按所述比例分别粉碎后混合均匀所得。
发酵中药:实施例1利用分段式发酵制备的畜禽抗病毒中草药制剂。
1.2试验动物
依据鸡感染新城疫的诊断标准,收集临床病鸡8200只。
1.2.1鸡新城疫诊断标准
1.2.1.1临床症状
鸡群精神不振,羽毛松乱,采食量和饮水量减少,羽毛蓬松,缩头扎堆并呈点头啄食状;鸡冠和肉髯呈暗红色或黑紫色;呼吸困难,张口伸颈,常有“咕噜”、“咯咯”的叫声,口鼻之中有粘液流出;粪便呈绿色或黄绿色,稀薄且恶臭。
1.2.1.2病例剖检
病死鸡的各处粘膜和浆膜出血,尤其腺胃乳头呈明显的针尖样出血点;半数死亡鸡的气管发现环状出血,盲肠扁桃体肿胀出血,肠道有出血斑,心冠脂肪有出血点。
1.3 病鸡的分组方法和给药方案
将感染鸡只随机分为3组,对照组200只,复方中药组和发酵中药组各4000只。各组给药方案见表2。试验期间所有试验鸡只统一给予常规肉鸡全价料和日常常规管理。
1.4 疗效观察及死亡情况
试验期间每天观察各试验组鸡的精神状态、平均采食情况、粪便性状等指标。试验期间按照疗效判定标准,观察和记录各组的临床治愈鸡数、有效鸡数及试验期间各组的死亡鸡数;疗效判定标准如下:
治愈:各种临床症状消失,食欲、精神状态良好,粪便正常;
无效:各种临床症状没有效果或效果不明显;
死亡:用药后死亡。
1.5.试验结果
本次试验周期共七天,具体试验效果如下:
试验组:试验开始时,200只鸡均具有不同程度的临床症状,其中重度临床症状16只;试验结束后,临床治愈140只,治愈率为70%;无效鸡只40只,无效率20%;死亡鸡只20只,死亡率10%;
复方中药组:试验开始时,4000只鸡均具有不同程度的临床症状,其中重度临床症状830只;试验结束后,临床治愈3360只,治愈率为84%;无效鸡只535只,无效率13.38%;死亡鸡只105只,死亡率2.62%;
发酵中药组:试验开始时,4000只鸡均具有不同程度的临床症状,其中重度临床症状835只;试验结束后,临床治愈3680只,治愈率为92%;无效鸡只275只,无效率6.87%;死亡鸡只45只,死亡率1.13%。
对比结果见表3。
1.6.小结
通过试验表明:本发明制备的发酵中药在治疗鸡新城疫时,可有效降低染病鸡死亡率,提高染病鸡治愈率效果,对防治新城疫等病毒性疾病有较高的临床应用价值。
Claims (3)
1.一种分段式发酵制备畜禽抗病毒中草药制剂的方法,其特征在于,制备步骤如下:
(1)、以重量份计,称取黄连20-25份、黄芩10-15份、黄柏15-20份、连翘10-15份,分别粉碎,备用;
(2)、发酵液制备:
(2.1)、将凝结芽孢杆菌、地衣芽孢杆菌和植物乳杆菌分别活化后扩大培养,获得对应的菌液;
(2.2)、将凝结芽孢杆菌菌液、地衣芽孢杆菌菌液、植物乳杆菌菌液按照(8.5-9.5)∶(1.8-2.2)∶1的体积比混合,获得发酵培养液;
(3)、液态发酵:
(3.1)、提取工艺:将步骤(1)所得的黄芩粉和连翘粉放入水中浸润至少30 min,随后煮沸搅拌提取至少1 h,再离心过滤,获得中药提取液和药渣;
(3.2)、将步骤(2.2)所得发酵培养液和步骤(3.1)所得中药提取液按照1∶(3-5)的体积比加入发酵罐中,再向发酵罐中加入复合培养基,发酵培养液和中药提取液的总量与复合培养基的体积比为(0.5-1.5)∶100,在搅拌速率50-80 rpm、通气量1.5-2.5 vvm条件下发酵48-72 h,获得液体发酵液;所述复合培养基的组成为:牛肉膏0.8-1.2 g/L、蛋白胨8-12 g/L、酵母浸出物4-6 g/L、葡萄糖18-22 g/L、NaCl 4-6 g/L、柠檬酸三铵4-6 g/L、碳酸氢钾1-3 g/L、吐温-80 0.5-1.5 g/L、七水硫酸镁0.1-0.3 g/L、硫酸锰0.04-0.06 g/L,余量为水;
(4)、固态发酵:
(4.1)、将步骤(3.1)所得药渣与步骤(1)所得黄连粉、黄柏粉混合;
(4.2)、将步骤(3.2)所得液体发酵液和步骤(4.1)所得固体混合物按照1∶(3-5)的质量比进行混合,均匀混合后分装到带有单向排气阀的发酵袋中密封,30-32 ℃发酵48-72 h,即得目标产物--畜禽抗病毒中草药制剂。
2.如权利要求1所述的分段式发酵制备畜禽抗病毒中草药制剂的方法,其特征在于:步骤(1)中,粉碎至40-80目。
3.如权利要求1所述的分段式发酵制备畜禽抗病毒中草药制剂的方法,其特征在于:步骤(2.1)中,凝结芽孢杆菌菌液、地衣芽孢杆菌菌液和植物乳杆菌菌液分别按照下述过程制备获得:
凝结芽孢杆菌菌液和地衣芽孢杆菌菌液的制备:将保存的凝结芽孢杆菌/地衣芽孢杆菌接种到种子斜面培养基中,35-37 ℃活化培养24-48 h ;然后将活化的培养液按体积比(0.5-1.5)∶100接种到基础发酵培养基中,35-37 ℃、150-200 r/min震荡扩大培养24-48 h后,制得凝结芽孢杆菌菌液/地衣芽孢杆菌菌液;所述种子斜面培养基的组成为:蛋白胨8-12 g/L、牛肉膏14-16 g/L、氯化钠14-16 g/L、琼脂16-20 g/L,余量为水;基础发酵培养基的组成为:蛋白胨8-12 g/L、牛肉膏14-16 g/L、氯化钠14-16 g/L,余量为水;
植物乳杆菌菌液的制备:将保存的植物乳杆菌接种到MRS培养基中,35-37 ℃、150-200r/min震荡活化培养24-48 h;然后将活化的培养液按体积比(0.5-1.5)∶100接种到MRS培养基中,35-37 ℃、150-200 r/min震荡扩大培养24-48 h后,制得植物乳杆菌菌液。
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