CN116391799A - 一种基于竹笋副产物的饲料添加剂及其制备工艺 - Google Patents
一种基于竹笋副产物的饲料添加剂及其制备工艺 Download PDFInfo
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Abstract
本发明属于竹笋副产物处理的技术领域,具体涉及一种基于竹笋副产物的饲料添加剂及其制备工艺,通过脱毒和发酵处理可以降低竹笋副产物中单宁、生氰糖苷等抗营养因子及粗纤维含量,具体采用超声工艺、脱毒剂、微波处理以及酶解等结合进行脱毒处理,所采用的脱毒剂可以析出竹笋副产物中的单宁以及生氰糖苷等抗营养因子,降低其含量,以及通过酶解除去粗纤维物质,同时保留竹笋副产物中的营养成分,所制得的饲料添加剂即可用于制备动物饲料,可提高饲料的营养成分及品质。
Description
技术领域
本发明属于竹笋副产物处理的技术领域,具体涉及一种基于竹笋副产物的饲料添加剂及其制备工艺。
背景技术
在我国食用竹笋已有3000多年的传统习惯,由于竹笋质嫩味美,营养丰富,享有“素食第一品”和“无笋不成席”的美称。因其独特的功效,竹笋还被国内外专家公认为是保健食品。云南省笋用竹品种多、分布广,产笋不收季节限制,由春至冬四季不算,开发潜力很大。由于特殊的地理位置和复杂的环境条件,云南竹类植物异常丰富,是世界竹类植物起源地和主要分布中心之一。
竹笋的加工当中,会产生以笋壳和木质化严重的笋头为主的大量竹笋副产物,约占笋体的70%,目前还缺乏对竹笋副产物高效利用的关键技术,直接丢弃会造成资源浪费以及环境污染等问题。竹笋副产物与竹笋本身营养物质含量差别较小,含有丰富的多糖、膳食纤维、游离氨基酸等营养和活性物质,具有抗氧化性、抗炎活性、降血脂等生物活性,对其开发利用应具有十分广阔的前景,
发明内容
针对上述问题,本发明的目的在于提供一种基于竹笋副产物的饲料添加剂及其制备工艺。
本发明的技术内容如下:
本发明还提供了一种基于竹笋副产物的饲料添加剂的制备工艺,包括如下步骤:
1)脱毒处理:取竹笋的笋头、笋壳等竹笋副产物,洗净、干燥、粉碎至颗粒状,将竹笋副产物颗粒置于蒸馏水中浸泡,超声震荡处理,过滤取出竹笋副产物颗粒,将竹笋副产物颗粒加入脱毒剂中浸泡,进行微波消解处理,过滤,降至常温,加入纤维素酶和半纤维素酶,进行酶解处理,过滤,得到竹笋脱毒副产物,即完成脱毒处理;
所述超声震荡处理的条件为60~70kHz;
所述脱毒剂的组分包括葡萄糖酸钾溶液、海藻酸、壳寡糖溶液以及表面改性椰糠;
所述脱毒剂中,葡萄糖酸钾的浓度为20~30%,海藻酸的用量为15~30wt%,壳寡糖的浓度为35~50%,表面改性椰糠的用量为20~30wt%;
所述表面改性椰糠的制备为:将椰糠粉加入到硅酸钠和十二烷基苯磺酸钠的混合溶液中,充分搅拌均匀之后,在压强为3~4MPa的N2环境中,以20~30℃/min的速率加热至160~180℃,搅拌速度为200~300r/min,保温6~7h,之后再以30~40℃/min的速率降至常温,即得到表面改性椰糠;
所述椰糠粉与混合溶液的体积比为(1~1.5):1;
所述混合溶液中硅酸钠的浓度为30~40%、十二烷基苯磺酸钠的浓度为20~35%,溶剂为水;
所述微波消解的处理条件设置为:温度为140~180℃、时间为40~60min、功率为400~800W;
所述纤维素酶和半纤维素酶的加入量为5~10wt%,酶解温度为30~35℃,环境pH为4~5.5;
2)发酵处理:将竹笋脱毒副产物中接种戊糖片球菌,于35~37℃下发酵48~60h,即得到竹笋副产物饲料;
所述戊糖片球菌的添加量为竹笋脱毒副产物的3~5wt%,接种前先进行活化,其活化培养基的成分为酪蛋白胨10.0g,牛肉膏10.0g,酵母粉5.0g,葡萄糖5.0g,乙酸钠5.0g,柠檬酸二铵2.0g,Tween 801.0g,K2HPO4 2.0g,MgSO4·7H2O 0.2g,MnSO4·H2O 0.05g,CaCO320.0g,琼脂15.0g,蒸馏水1.0L,pH 6.8。
本发明还提供了一种上述制备工艺得到的基于竹笋副产物的饲料添加剂。
本发明还提供了一种所述基于竹笋副产物的饲料添加剂用于制备动物饲料。
本发明的有益效果如下:
本发明的基于竹笋副产物的饲料添加剂的制备工艺,通过脱毒和发酵处理可以降低竹笋副产物中单宁、生氰糖苷等抗营养因子及粗纤维含量,具体采用超声工艺、脱毒剂、微波处理以及酶解等结合进行脱毒处理,所采用的脱毒剂可以析出竹笋副产物中的单宁以及生氰糖苷等抗营养因子,降低其含量,以及通过酶解除去粗纤维物质,同时保留竹笋副产物中的营养成分,所制得的饲料添加剂即可用于制备动物饲料,可提高饲料的营养成分及品质,实现对竹笋副产物的废物利用,且处理效率高,成本较低。
具体实施方式
以下通过具体的实施案例对本发明作进一步详细的描述,应理解这些实施例仅用于说明本发明而不用于限制本发明的保护范围,在阅读了本发明之后,本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定。
若无特殊说明,本发明的所有原料和试剂均为常规市场的原料、试剂。
实施例1
一种基于竹笋副产物的饲料添加剂的制备
1)脱毒处理:取竹笋的笋头、笋壳等竹笋副产物,洗净、干燥、粉碎至颗粒状,将竹笋副产物颗粒置于蒸馏水中浸泡,进行65kHz的超声震荡处理30min,过滤取出竹笋副产物颗粒,将竹笋副产物颗粒加入脱毒剂中浸泡,进行微波消解处理,温度为160℃、时间为50min、功率为600W,之后过滤,降至常温,加入8wt%纤维素酶和半纤维素酶(质量比为1:1),酶解温度为32℃,环境pH为5,进行酶解处理,过滤,得到竹笋脱毒副产物,即完成脱毒处理;
所述脱毒剂包括,水溶液中,葡萄糖酸钾的浓度为25%,海藻酸的用量为25wt%,壳寡糖的浓度为45%,表面改性椰糠的用量为25wt%;
所述表面改性椰糠的制备为:将椰糠粉加入到浓度为35%硅酸钠和浓度为35%十二烷基苯磺酸钠的混合溶液中,混合体积比为1.2:1,充分搅拌均匀之后,在压强为3.5MPa的N2环境中,以25℃/min的速率加热至170℃,搅拌速度为250r/min,保温6.5h,之后再以35℃/min的速率降至常温,即得到表面改性椰糠;
2)发酵处理:将竹笋脱毒副产物中接种4wt%戊糖片球菌,于37℃下发酵55h,即得到竹笋副产物饲料;
所述戊糖片球菌接种前先进行活化,其活化培养基的成分为酪蛋白胨10.0g,牛肉膏10.0g,酵母粉5.0g,葡萄糖5.0g,乙酸钠5.0g,柠檬酸二铵2.0g,Tween 80 1.0g,K2HPO42.0g,MgSO4·7H2O 0.2g,MnSO4·H2O 0.05g,CaCO3 20.0g,琼脂15.0g,蒸馏水1.0L,pH 6.8。
实施例2
一种基于竹笋副产物的饲料添加剂的制备
1)脱毒处理:取竹笋的笋头、笋壳等竹笋副产物,洗净、干燥、粉碎至颗粒状,将竹笋副产物颗粒置于蒸馏水中浸泡,进行60kHz的超声震荡处理30min,过滤取出竹笋副产物颗粒,将竹笋副产物颗粒加入脱毒剂中浸泡,进行微波消解处理,温度为140℃、时间为60min、功率为800W,之后过滤,降至常温,加入5wt%纤维素酶和半纤维素酶(质量比为1:1),酶解温度为30℃,环境pH为4,进行酶解处理,过滤,得到竹笋脱毒副产物,即完成脱毒处理;
所述脱毒剂包括,水溶液中,葡萄糖酸钾的浓度为20%,海藻酸的用量为30wt%,壳寡糖的浓度为35%,表面改性椰糠的用量为30wt%;
所述表面改性椰糠的制备为:将椰糠粉加入到浓度为30%硅酸钠和浓度为20%十二烷基苯磺酸钠的混合溶液中,混合体积比为1:1,充分搅拌均匀之后,在压强为3MPa的N2环境中,以20℃/min的速率加热至160℃,搅拌速度为300r/min,保温6h,之后再以30℃/min的速率降至常温,即得到表面改性椰糠;
2)发酵处理:将竹笋脱毒副产物中接种3wt%戊糖片球菌,于35℃下发酵60h,即得到竹笋副产物饲料。
实施例3
一种基于竹笋副产物的饲料添加剂的制备
1)脱毒处理:取竹笋的笋头、笋壳等竹笋副产物,洗净、干燥、粉碎至颗粒状,将竹笋副产物颗粒置于蒸馏水中浸泡,进行70kHz的超声震荡处理30min,过滤取出竹笋副产物颗粒,将竹笋副产物颗粒加入脱毒剂中浸泡,进行微波消解处理,温度为180℃、时间为40min、功率为400W,之后过滤,降至常温,加入10wt%纤维素酶和半纤维素酶(质量比为1:1),酶解温度为35℃,环境pH为5.5,进行酶解处理,过滤,得到竹笋脱毒副产物,即完成脱毒处理;
所述脱毒剂包括,水溶液中,葡萄糖酸钾的浓度为30%,海藻酸的用量为15wt%,壳寡糖的浓度为50%,表面改性椰糠的用量为20wt%;
所述表面改性椰糠的制备为:将椰糠粉加入到浓度为40%硅酸钠和浓度为35%十二烷基苯磺酸钠的混合溶液中,混合体积比为1.5:1,充分搅拌均匀之后,在压强为4MPa的N2环境中,以30℃/min的速率加热至180℃,搅拌速度为300r/min,保温7h,之后再以40℃/min的速率降至常温,即得到表面改性椰糠;
2)发酵处理:将竹笋脱毒副产物中接种5wt%戊糖片球菌,于35℃下发酵48h,即得到竹笋副产物饲料。
对比例1
作为实施例1的对照组,对比例1的基于竹笋副产物的饲料添加剂的制备中,步骤1)的脱毒剂中,葡萄糖酸钾的浓度为20~30%,壳寡糖的浓度为35~50%,其它条件不变。
对比例2
作为实施例1的对照组,对比例2的基于竹笋副产物的饲料添加剂的制备中,步骤1)脱毒处理中,将竹笋副产物颗粒与10wt%的麸皮混合,经水煮60min,即完成脱毒,其它条件不变。
将实施例1~3以及对比例1~2处理得到的竹笋副产物饲料进行脱毒效果以及营养成分的测试,结果如下所示:
表1竹笋副产物的脱毒效果
处理组 | 单宁(mg/kg) | 生氰糖苷(mg/kg) | 脱毒率 |
实施例1 | 6830~7146 | 0.03~0.04 | 91.2~93.9% |
实施例2 | 7098~7521 | 0.03~0.05 | 90.5~92.6% |
实施例3 | 6445~6854 | 0.03~0.04 | 91.8~94.5% |
对比例1 | 10400~12750 | 0.07~0.09 | 65.4~67.1% |
对比例2 | 12450~13280 | 0.08~0.09 | 58.0~62.4% |
表2竹笋副产物的营养成分
处理组 | 粗蛋白(g/kg) | 矿物质(g/kg) | 口感 |
实施例1 | 95.3~98.6 | 1.46~1.58 | 清香无异味,爽脆 |
实施例2 | 96.0~97.2 | 1.44~1.49 | 清香无异味,爽脆 |
实施例3 | 96.4~97.9 | 1.40~1.55 | 清香无异味,爽脆 |
对比例1 | 96.7~97.2 | 1.47~1.50 | 无异味 |
对比例2 | 97.1~98.3 | 1.44~1.48 | 无异味 |
由表1、表2可见,通过本发明对竹笋副产物的处理,所采用的的脱毒以及发酵工艺,能够实现对竹笋副产物中单宁、生氰糖苷等抗营养因子含量的有效降低,同时还能保留营养成分,使得所制备的竹笋饲料副产物能够应用于制备动物蛋白饲料,变废为宝,还能提高动物饲料的营养以及品质。
Claims (9)
1.一种基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,包括如下步骤:
1)脱毒处理:取竹笋的笋头、笋壳等竹笋副产物,洗净、干燥、粉碎至颗粒状,将竹笋副产物颗粒置于蒸馏水中浸泡,超声震荡处理,过滤取出竹笋副产物颗粒,将竹笋副产物颗粒加入脱毒剂中浸泡,进行微波消解处理,过滤,降至常温,加入纤维素酶和半纤维素酶,进行酶解处理,过滤,得到竹笋脱毒副产物,即完成脱毒处理;
所述脱毒剂的组分包括葡萄糖酸钾溶液、海藻酸、壳寡糖溶液以及表面改性椰糠;
2)发酵处理:将竹笋脱毒副产物中接种戊糖片球菌,于35~37℃下发酵48~60h,即得到竹笋副产物饲料。
2.根据权利要求1所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,步骤1)所述脱毒剂中,葡萄糖酸钾的浓度为20~30%,海藻酸的用量为15~30wt%,壳寡糖的浓度为35~50%,表面改性椰糠的用量为20~30wt%。
3.根据权利要求1所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,步骤1)所述表面改性椰糠的制备为:将椰糠粉加入到硅酸钠和十二烷基苯磺酸钠的混合溶液中,充分搅拌均匀之后,在压强为3~4MPa的N2环境中,以20~30℃/min的速率加热至160~180℃,搅拌速度为200~300r/min,保温6~7h,之后再以30~40℃/min的速率降至常温,即得到表面改性椰糠;
所述椰糠粉与混合溶液的体积比为(1~1.5):1。
4.根据权利要求3所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,所述混合溶液中硅酸钠的浓度为30~40%、十二烷基苯磺酸钠的浓度为20~35%,溶剂为水。
5.根据权利要求1所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,步骤1)所述微波消解的处理条件设置为:温度为140~180℃、时间为40~60min、功率为400~800W。
6.根据权利要求1所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,步骤1)所述纤维素酶和半纤维素酶的加入量为5~10wt%,酶解温度为30~35℃,环境pH为4~5.5。
7.根据权利要求1所述的基于竹笋副产物的饲料添加剂的制备工艺,其特征在于,步骤2)所述戊糖片球菌的添加量为竹笋脱毒副产物的3~5wt%,接种前先进行活化,其活化培养基的成分为酪蛋白胨10.0g,牛肉膏10.0g,酵母粉5.0g,葡萄糖5.0g,乙酸钠5.0g,柠檬酸二铵2.0g,Tween 80 1.0g,K2HPO4 2.0g,MgSO4·7H2O 0.2g,MnSO4·H2O 0.05g,CaCO320.0g,琼脂15.0g,蒸馏水1.0L,pH 6.8。
8.一种权利要求1~7任一项所述制备工艺得到基于竹笋副产物的饲料添加剂。
9.一种权利要求8所述基于竹笋副产物的饲料添加剂用于制备动物饲料。
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