CN114747664A - 一种生物富硒替代料的制备方法 - Google Patents
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Abstract
本发明公开了一种生物富硒替代料的制备方法,其是以农业废弃物地瓜皮为主要原料,通过与茶渣、玉米粉等复配,并分别利用枯草芽孢杆菌、粗纤维降解专用菌及EM菌进行发酵,从而制得所述生物富硒替代料。利用该生物富硒替代料制备的禽畜饲料不仅营养丰富,还有益于动物的消化和吸收,且其还可起到防病治病、降低死亡率、提高肉质风味的效果,具有较好的经济效益及社会效益。
Description
技术领域
本发明属于生物资源利用领域,具体涉及一种生物富硒替代料的制备方法。
背景技术
在地瓜系列产品的生产和加工过程中会产生大量的副产品——地瓜皮。新鲜地瓜皮中含碱较多,不宜食用,而皮上若有黑褐色或黑色斑点更不能食用,因此其大部分被露天堆积或野外倾倒,造成了环境污染及资源浪费。
生物技术的进步为地瓜皮等食品加工业副产品的有效利用提供了新的技术手段,尤其是发酵技术可实现有机酸、酶、蛋白饲料及膳食纤维等高附加值产品的生物转化。通过微生物发酵农业副产品生产生物制品不仅能够有效降低环境污染而且能够增加经济效益。但当前利用微生物发酵地瓜皮存在一些问题:如地瓜皮水分含量高、不易发酵;地瓜皮表面之间被淀粉汁液相互粘结,从而在发酵过程中搅拌困难,造成水分含量不均,发酵品质参差不齐;另外,现在市场上存在多种发酵地瓜皮的菌制剂,不同的微生物发酵产生众多代谢物质,也使得发酵地瓜皮饲料品质难以保障。为解决上述问题,本发明探索出一种可规模化生产地瓜皮功能性生物发酵饲料的技术。
发明内容
本发明的目的在于提供一种以农业废弃物地瓜皮为主要原料制备生物富硒替代料的方法,其可将地瓜皮所含的粗纤维等降解为动物容易消化吸收的小分子物质,使用其制备的禽畜饲料不仅营养丰富,还有益于动物的消化和吸收,且其还可起到防病治病、降低死亡率、提高肉质风味的效果。
为实现上述目的,本发明采用如下技术方案:
一种生物富硒替代料的制备方法,其包括以下步骤:
1)堆料:将地瓜加工过程中废弃的地瓜皮剔除杂质后,经切断、清洗、干燥,再按每20~30t为一堆进行放置;
2)枯草芽孢杆菌菌液的配制:按质量比0.1:10在枯草芽孢杆菌中加入水,搅拌均匀制得枯草芽孢杆菌菌液;
3)第一次发酵:将步骤1)摆放好的一个料堆平铺至厚度为15~20cm,然后在其上均匀喷洒一次步骤2)制备好的枯草芽孢杆菌菌液,再在其上平铺一个料堆的地瓜皮,使其厚度为15~20cm,并均匀喷洒一次枯草芽孢杆菌菌液,如此重复至堆高为1.5-2m,放置发酵12~24小时;
4)降解菌粉的配制:将粗纤维降解专用菌与米糠按质量比1:75充分拌匀,然后加水拌和至含水量为40~45%,18~25℃发酵24小时,制得降解菌粉;
5)第二次发酵:在步骤3)处理好的料堆上均匀铺撒一层茶渣,然后在其上均匀撒一次步骤4)制备好的降解菌粉,翻堆拌匀,放置发酵48小时后测量料堆温度,待其温度达55℃以上时继续放置3d;
6)含硒菌液的配制:将EM菌原种与红糖和水按质量比0.75:3.5:75混合溶解,然后按2.5mL/kg的量加入有机硒营养液,经混匀制得含硒菌液;
7)第三次发酵:在步骤5)处理好的料堆上先后均匀铺撒一层玉米粉及一层酒糟,然后在其上均匀喷洒一次步骤6)制备好的含硒菌液,再将其送入发酵装置中,30~55℃发酵5~7d;
8)脱水:将步骤7)所得发酵料经压榨后,于60~85℃干燥至含水量≤13%;
9)粉碎:将脱水后的发酵料进行粉碎,即得所述生物富硒替代料。
在进行第一次发酵前,先将用于堆料的地瓜皮于杀青机中,200℃处理10-20分钟,以达到杀菌及提温的效果,从而使地瓜皮在冬季寒冷环境下仍能实现快速发酵。
步骤3)中每次喷洒枯草芽孢杆菌菌液的用量按每层地瓜皮加入其重量0.015~0.025‰的枯草芽孢杆菌进行换算。
步骤5)中茶渣的用量为所用地瓜皮重量的1%;降解菌粉的用量按所用每kg地瓜皮加入0.4g粗纤维降解专用菌进行换算。步骤5)中还可加入地瓜藤、百香果皮、芋头皮、秸秆中的一种或几种进行共同发酵;其加入量与所用地瓜皮的质量百分数之比为(3~5):(5~7)。
步骤6)所用有机硒营养液中有机硒的含量为2.5-5.5g/mL。
步骤7)中玉米粉及酒糟的用量均为所用地瓜皮重量的2%;含硒菌液的用量按所用每kg地瓜皮加入0.2g粗纤维降解专用菌进行换算。所述发酵装置包括发酵箱,所述发酵箱顶端开口并铰接有密封盖,所述密封盖上贯穿设有出气管并于出气管顶端设置限压阀,所述发酵箱侧部开设有出料口并经箱门启闭,所述发酵箱内滑动设置有与箱门平行的出料推板,所述出料推板经横移驱动组件驱动横向滑移;
所述密封盖内顶部竖向下延伸有若干长度不等的连杆,所述连杆底端均设有温度传感器;
所述密封盖内底部朝下同轴凸出有环状的密封板,所述密封板外径与顶端开口内径一致,且密封板沿其外周垫设有密封圈;
所述箱门顶部经气缸驱动升降,所述发酵箱内开设有供气缸安装的嵌槽,该嵌槽竖向设置于出料口相通;
所述横移驱动组件包括电机、丝杆、隔板,所述电机嵌设在发酵箱内,电机驱动丝杆转动,所述隔板横向延伸以将丝杆与发酵箱内部隔断,所述丝杆上的丝杆螺母与出料推板端部固连,所述隔板上开设有供出料推板横移的避让口;
所述横移驱动组件平行设有两组,所述出料推板纵向延伸两端分别固连在两丝杆的丝杆螺母上以同步驱动出料推板横向滑移,所述出料推板顶部两端分别与两丝杆螺母固连,底部与发酵箱内底部接触;
所述发酵箱底部设有排液管,该排液管底端穿出发酵箱并于外端设有阀门。所收集的发酵排出液及步骤8)经压榨后的收集的发酵液经灭菌后可替代制备过程中使用的水,从而达到“无废”的效果。
上述制备的生物富硒替代料可部分替代豆粕和/或玉米粉,用于猪、牛、鸡、鸭等禽畜饲料的制备;其替代率为20~40%。
本发明的显著优点在于:
(1)本发明采用先耗氧后厌氧的发酵方法,适用多点多地前处理后集中加工,可快速消化大量废弃地瓜皮,且其可使地瓜皮保持原有的清新度,不发生霉变。
(2)申请人经研究发现,堆料时将地瓜皮分多次铺成15~20cm高再进行接种发酵,可使料堆较快达到适宜的发酵温度,因而有助于实现物料的快速发酵,其发酵时间可较常规直接接种缩短3~4天。
(3)本发明在制备过程中加入茶渣,不仅可起到一定替抗作用,且其具有的抗氧化性还有助于地瓜皮的保色,因而可使所得生物富硒替代料具有地瓜皮原本的新鲜色泽(如图4)。而酒糟的加入可改善所得生物富硒替代料的适口性,并使其具有清新的酸甜风味,促进禽畜取食。
(4)本发明中采用特殊的发酵装置替代传统发酵袋进行厌氧发酵,可简化操作,有利于实现物料的大批量处理,这对于该生物富硒替代料的工业化生产有积极的推动作用。
(5)本发明通过添加多种专用生物菌进行生物发酵,不仅可将原料的大分子物质转化为小分子物质,而使其易于消化吸收,还可使原料软化,产生一定的酸香味,从而具有良好的适口性,使禽畜喜欢采食。同时,微生物的大量繁殖,丰富了所得生物富硒替代料的营养成分。因此,利用本发明所得生物富硒替代料制备禽畜饲料,不仅能满足禽畜生长所需营养,还可代替激素和抗生素,达到促进生长、降低死亡率、防病治病、提高肉质风味的效果,并使饲养的动物无激素和抗生素残留。
(6)本发明所得生物富硒替代料可替代常规禽畜饲料中豆粕、玉米粉的使用,这扩大了饲料来源,降低了饲养成本,可以显著提高养殖户的效益。
附图说明
图1为本发明所用发酵装置的构造示意图;
图2为本发明所用发酵装置中出料推板与横移驱动组件的连接示意图;
图3为本发明所用发酵装置中出料推板与横移驱动组件的安装俯视示意图;
图中:1-发酵箱,2-密封盖,3-出气管,4-限压阀,5-出料口,6-箱门,7-出料推板,8-连杆,9-温度传感器,10-密封板,11-密封圈,12-气缸,13-嵌槽,14-电机,15-丝杆,16-隔板,17-排液管,18-阀门,19-避让口。
图4为本发明所得生物富硒替代料的样品图。
具体实施方式
为了使本发明所述的内容更加便于理解,下面结合具体实施方式对本发明所述的技术方案做进一步的说明,但是本发明不仅限于此。
如图1~3所示,本发明中所涉及发酵装置包括发酵箱1,所述发酵箱顶端开口并铰接有密封盖2,所述密封盖上贯穿设有出气管3并于出气管顶端设置限压阀4,所述发酵箱侧部开设有出料口5并经箱门6启闭,所述发酵箱内滑动设置有与箱门平行的出料推板7,所述出料推板经横移驱动组件驱动横向滑移,通过发酵内部产生气体导致内压较高,当超过限压阀的阈值时,限压阀将开启并排气,排至限压阀范围内时重新闭合,通过限压阀也可判断内部的发酵状态,该限压阀与压力锅限压阀相当,在此不做过多赘述。
所述密封盖内顶部竖向下延伸有若干长度不等的连杆8,所述连杆底端均设有温度传感器9,通过温度传感器与外部监测设备进行电性连接,以实时监测内部不同位置的温度情况,以此推断内部发酵状态。
所述密封盖内底部朝下同轴凸出有环状的密封板10,所述密封板外径与顶端开口内径一致,且密封板沿其外周垫设有密封圈11,通过密封板以及密封圈的设置,进一步保证发酵箱内部密封性。
所述箱门顶部经气缸12驱动升降,所述发酵箱内开设有供气缸安装的嵌槽13,该嵌槽竖向设置于出料口相通。
所述横移驱动组件包括电机14、丝杆15、隔板16,所述电机嵌设在发酵箱内,电机驱动丝杆转动,所述隔板横向延伸以将丝杆与发酵箱内部隔断,所述丝杆上的丝杆螺母与出料推板端部固连,所述隔板上开设有供出料推板横移的避让口19,即该避让口横向延伸以供出料推板横移。
所述横移驱动组件平行设有两组,所述出料推板纵向延伸两端分别固连在两丝杆的丝杆螺母上以同步驱动出料推板横向滑移,所述出料推板顶部两端分别与两丝杆螺母固连,底部与发酵箱内底部接触。
所述发酵箱底部设有排液管17,该排液管底端穿出发酵箱并于外端设有阀门18,以利排出在出料时内部多余的液体,无需人工进入清除,下一批饲料在排出发酵完成饲料以及液体后可直接置入进行发酵工作,提高生产效率。
实施例1
1)堆料:将地瓜加工过程中废弃的地瓜皮剔除杂质后,经切断、清洗、干燥,再按每20~30t为一堆进行放置;
2)枯草芽孢杆菌菌液的配制:按质量比0.1:10在枯草芽孢杆菌中加入水,搅拌均匀制得枯草芽孢杆菌菌液;
3)第一次发酵:将步骤1)摆放好的一个料堆平铺至厚度为15~20cm,然后在其上均匀喷洒一次步骤2)制备好的枯草芽孢杆菌菌液,再在其上平铺一个料堆的地瓜皮,使其厚度为15~20cm,并均匀喷洒一次枯草芽孢杆菌菌液,如此重复至堆高为1.5m(每次喷洒枯草芽孢杆菌菌液的用量按按每层地瓜皮加入其重量0.02‰的枯草芽孢杆菌进行换算),室温放置发酵24小时;
4)降解菌粉的配制:将粗纤维降解专用菌与米糠按质量比1:75充分拌匀,然后加水拌和至含水量为45%,18~25℃发酵24小时,制得降解菌粉;
5)第二次发酵:在步骤3)处理好的料堆上均匀铺撒一层茶渣(茶渣的用量为所用地瓜皮重量的1%),然后在其上均匀撒一次步骤4)制备好的降解菌粉(降解菌粉的用量按所用每kg地瓜皮加入0.4g粗纤维降解专用菌进行换算),翻堆拌匀,放置发酵48小时后测量料堆温度,待其温度达55℃以上时继续放置3d;
6)含硒菌液的配制:将EM菌原种与红糖和水按质量比0.75:3.5:75混合溶解,然后按2.5mL/kg的量加入有机硒营养液(其有机硒含量为2.5g/mL),经混匀制得含硒菌液;
7)第三次发酵:在步骤5)处理好的料堆上先后均匀铺撒一层玉米粉及一层酒糟(玉米粉及酒糟的用量均为所用地瓜皮重量的2%),然后在其上均匀喷洒一次步骤6)制备好的含硒菌液(含硒菌液的用量按所用每kg地瓜皮加入0.2g粗纤维降解专用菌进行换算),再将其送入发酵装置中,30~55℃发酵7d;
8)脱水:将步骤7)所得发酵料经压榨后,于60~85℃干燥至含水量≤13%;
9)粉碎:将脱水后的发酵料进行粉碎,制得生物富硒替代料。
所用地瓜皮及制得的生物富硒替代料的成分对比结果见表1。
表1
由表1可见,经本发明方法处理后,所得生物富硒替代料中粗蛋白、钙、硒含量都有明显增高,这证明按本发明方法处理可提高生物富硒替代料的营养价值。
将玉米粉44%、豆粕17%、麸皮10%、鱼粉9%、骨粉2%及生物富硒替代料18%(替代率22.8%)制成饲料,用于肉鸡的喂养,结果显示,与不添加生物富硒替代料制备的鸡饲料相比,采用生物富硒替代料制备的饲料进行肉鸡的饲养,可使死亡率降低5%,屠宰率提高8%以上。
将玉米粉42%、豆粕16%、菜粕3%、次粉10%、石粉9.7%、预混料4%、食盐0.3%及生物富硒替代料15%(替代率20.5%)制成饲料,用于蛋鸭的喂养,结果显示,与不添加生物富硒替代料制备的鸭饲料相比,采用生物富硒替代料制备的饲料进行肉鸡的饲养,可使产蛋率提高8%,产蛋周期延长,蛋清变稠,蛋黄颜色变深。
以上证明本发明生物富硒替代料具有促进生长、降低死亡率等效果。
实施例2
1)堆料:将地瓜加工过程中废弃的地瓜皮剔除杂质后,经切断、清洗、干燥,再按每20~30t为一堆进行放置;
2)枯草芽孢杆菌菌液的配制:按质量比0.1:10在枯草芽孢杆菌中加入水,搅拌均匀制得枯草芽孢杆菌菌液;
3)第一次发酵:在冬季寒冷环境中,先将步骤1)摆放好的一个料堆于200℃杀青机中杀青处理10分钟,然后快速将其平铺至厚度为15~20cm,并在其上均匀喷洒一次步骤2)制备好的枯草芽孢杆菌菌液,再在其上平铺一料堆杀青后的地瓜皮,使其厚度为15~20cm,并均匀喷洒一次枯草芽孢杆菌菌液,如此重复至堆高为2m(每次喷洒枯草芽孢杆菌菌液的用量按按每层地瓜皮加入其重量0.02‰的枯草芽孢杆菌进行换算),此时料堆温度为35~65℃,放置发酵24小时;
4)降解菌粉的配制:将粗纤维降解专用菌与米糠按质量比1:75充分拌匀,然后加水拌和至含水量为40%,18~25℃发酵24小时,制得降解菌粉;
5)第二次发酵:在步骤3)处理好的料堆上均匀铺撒一层茶渣(茶渣的用量为所用地瓜皮重量的1%),然后在其上均匀撒一次步骤4)制备好的降解菌粉(降解菌粉的用量按所用每kg地瓜皮加入0.4g粗纤维降解专用菌进行换算),加入地瓜藤(所用地瓜藤与地瓜皮的重量比为3:7)翻堆拌匀,放置发酵48小时后测量料堆温度,待其温度达55℃以上时继续放置3d;
6)含硒菌液的配制:将EM菌原种与红糖和水按质量比0.75:3.5:75混合溶解,然后按2.5mL/kg的量加入有机硒营养液(其有机硒含量为5.5g/mL),经混匀制得含硒菌液;
7)第三次发酵:在步骤5)处理好的料堆上先后均匀铺撒一层玉米粉及一层酒糟(玉米粉及酒糟的用量均为所用地瓜皮重量的2%),然后在其上均匀喷洒一次步骤6)制备好的含硒菌液(含硒菌液的用量按所用每kg地瓜皮加入0.2g粗纤维降解专用菌进行换算),再将其送入发酵装置中,30~55℃发酵5d;
8)脱水:将步骤7)所得发酵料经压榨后,于60~85℃干燥至含水量≤13%,压榨后收集的水经灭菌后可替代制备过程中使用的水;
9)粉碎:将脱水后的发酵料进行粉碎,制得生物富硒替代料。
所用地瓜皮及制得的生物富硒替代料的成分对比结果见表2。
表2
由表2可见,经本发明方法处理后,所得生物富硒替代料中粗蛋白、钙、硒含量都有明显增高,这证明按本发明方法处理可提高生物富硒替代料的营养价值。
将玉米粉44%、豆粕8%、麦麸13%、青干草5%、鱼粉6%、骨粉1.5%、食盐0.5%及生物富硒替代料22%(替代率29.7%)制成猪饲料,结果显示,与不添加生物富硒替代料制备的鸭饲料相比,采用生物富硒替代料制备的饲料进行猪的饲养,猪更喜欢采食,并可使猪的生长率增加5%以上,屠宰率增加5%以上,且其还可使一些常见疾病,如气喘病、肠胃病等,都有所减少,公猪配种性欲高,母猪泌乳量增高,仔猪死亡量减少,这证明本发明生物富硒替代料具有促进生长、提高抗病能力等效果。
以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所做的均等变化与修饰,皆应属本发明的涵盖范围。
Claims (10)
1.一种生物富硒替代料的制备方法,其特征在于,包括以下步骤:
1)堆料:将地瓜加工过程中废弃的地瓜皮剔除杂质后,经切断、清洗、干燥,再按每20~30t为一堆进行放置;
2)枯草芽孢杆菌菌液的配制:按质量比0.1:10在枯草芽孢杆菌中加入水,搅拌均匀制得枯草芽孢杆菌菌液;
3)第一次发酵:将步骤1)摆放好的一个料堆平铺至厚度为15~20cm,然后在其上均匀喷洒一次步骤2)制备好的枯草芽孢杆菌菌液,再在其上平铺一个料堆的地瓜皮,使其厚度为15~20cm,并均匀喷洒一次枯草芽孢杆菌菌液,如此重复至堆高为1.5-2m,放置发酵12~24小时;
4)降解菌粉的配制:将粗纤维降解专用菌与米糠按质量比1:75充分拌匀,然后加水拌和至含水量为40~45%,18~25℃发酵24小时,制得降解菌粉;
5)第二次发酵:在步骤3)处理好的料堆上均匀铺撒一层茶渣,然后在其上均匀撒一次步骤4)制备好的降解菌粉,翻堆拌匀,放置发酵48小时后测量料堆温度,待其温度达55℃以上时继续放置3d;
6)含硒菌液的配制:将EM菌原种与红糖和水按质量比0.75:3.5:75混合溶解,然后按2.5mL/kg的量加入有机硒营养液,经混匀制得含硒菌液;
7)第三次发酵:在步骤5)处理好的料堆上先后均匀铺撒一层玉米粉及一层酒糟,然后在其上均匀喷洒一次步骤6)制备好的含硒菌液,再将其送入发酵装置中,30~55℃发酵5~7d;
8)脱水:将步骤7)所得发酵料经压榨后,于60~85℃干燥至含水量≤13%;
9)粉碎:将脱水后的发酵料进行粉碎,即得所述生物富硒替代料。
2.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,在进行第一次发酵前,先将用于堆料的地瓜皮于杀青机中,200℃处理10-20分钟。
3.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤3)中每次喷洒枯草芽孢杆菌菌液的用量按每层地瓜皮加入其重量0.015~0.025‰的枯草芽孢杆菌进行换算。
4.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤5)中茶渣的用量为所用地瓜皮重量的1%;降解菌粉的用量按所用每kg地瓜皮加入0.4g粗纤维降解专用菌进行换算。
5.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤5)中还加入了地瓜藤、百香果皮、芋头皮、秸秆中的一种或几种;其加入量与所用地瓜皮的质量百分数之比为(3~5):(5~7)。
6.据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤6)所用有机硒营养液中有机硒的含量为2.5-5.5g/mL。
7.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤7)中玉米粉及酒糟的用量均为所用地瓜皮重量的2%;含硒菌液的用量按所用每kg地瓜皮加入0.2g粗纤维降解专用菌进行换算。
8.根据权利要求1所述的生物富硒替代料的制备方法,其特征在于,步骤7)所述发酵装置包括发酵箱,所述发酵箱顶端开口并铰接有密封盖,所述密封盖上贯穿设有出气管并于出气管顶端设置限压阀,所述发酵箱侧部开设有出料口并经箱门启闭,所述发酵箱内滑动设置有与箱门平行的出料推板,所述出料推板经横移驱动组件驱动横向滑移。
9.根据权利要求8所述的生物富硒替代料的制备方法,其特征在于,所述密封盖内顶部竖向下延伸有若干长度不等的连杆,所述连杆底端均设有温度传感器;
所述密封盖内底部朝下同轴凸出有环状的密封板,所述密封板外径与顶端开口内径一致,且密封板沿其外周垫设有密封圈;
所述箱门顶部经气缸驱动升降,所述发酵箱内开设有供气缸安装的嵌槽,该嵌槽竖向设置于出料口相通;
所述横移驱动组件包括电机、丝杆、隔板,所述电机嵌设在发酵箱内,电机驱动丝杆转动,所述隔板横向延伸以将丝杆与发酵箱内部隔断,所述丝杆上的丝杆螺母与出料推板端部固连,所述隔板上开设有供出料推板横移的避让口;
所述横移驱动组件平行设有两组,所述出料推板纵向延伸两端分别固连在两丝杆的丝杆螺母上以同步驱动出料推板横向滑移,所述出料推板顶部两端分别与两丝杆螺母固连,底部与发酵箱内底部接触;
所述发酵箱底部设有排液管,该排液管底端穿出发酵箱并于外端设有阀门。
10.一种如权利要求1~9所述方法制备的生物富硒替代料在禽畜饲料中的应用,其特征在于,利用所述生物富硒替代料部分替代常规禽畜饲料中使用的豆粕和/或玉米粉,其替代率为20~40%。
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