CN111264745A - 一种高效的生物饲料防霉剂及应用 - Google Patents
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- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
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Abstract
本发明公开了一种复合型饲料防霉剂及其应用,包括按重量份计的以下组分:苯甲酸钠0‑20份,丙酸5‑10份,乙酸0‑30份,磷酸0‑45份,乳酸0‑25份,水0‑30份。本发明提供的复合型饲料防霉剂具有抗菌谱广,防霉时间长,特别是在湿基发酵饲料中具有优秀的防霉效果。
Description
技术领域
本发明涉及一种饲料添加剂,具体为一种高效的生物饲料防霉剂及应用,特别涉及微生物发酵饲料防霉剂及应用。
背景技术
伴随着养殖业的快速发展,人畜争粮和抗生素残留等问题渐渐进入大家视野。微生物发酵饲料以其可以很好地解决这些问题,实现安全绿色生产,受到了广大饲料加工和畜禽养殖企业的青睐。随着微生物发酵原料的应用,其应用过程中的一些问题也凸显出来,特别是在添加了含水量较高的发酵原料后,饲料水分增加容易霉变导致保质期变短的问题,是目前亟需解决的问题。
饲料发生霉变后营养价值大大降低,适口性变差,而且畜禽一旦吃了霉变的饲料,轻者影响生长发育,重者中毒死亡,不仅会给养殖户造成重大的经济损失,而且还危害到人类食品安全。为了防止饲料发生霉变,在生产中除注意饲料原料的品质和成品饲料的合理贮存外,最有效和经济的办法之一就是在饲料中合理添加防霉剂。目前,市场上的饲料防霉剂也有很多种,而且也取得了很好的防霉效果,但是对于特殊生产的饲料,比如采用了高水分的微生物发酵原料生产的饲料防霉剂还没有很好的产品。因此,研究更加适合畜牧业发展需求的特殊饲料防霉剂仍是本领域技术人员的责任和追求。
发明内容
本发明的目的之一是提供一种复合型饲料防霉剂。
本发明的目的之二是提供一种在湿基发酵饲料上应用的复合型饲料防霉剂。
本发明的这些以及其它目的将通过下列详细描述和说明来进一步体现。
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
进一步的,本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
丙酸 10份 乙酸 25份。
本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
丙酸 5份 磷酸 15份。
较好的是,本发明的复合型饲料防霉剂,包括按重量份计的以下组分:
本发明的复合型饲料防霉剂在复合型饲料中的添加量为1000-3000ppm。
本发明的复合型饲料防霉剂对饲料中的霉菌具有非常强的抑制作用。
其中3株霉菌为总状毛霉(Mucor racemosus)CICC 40241、正灰绿青霉(Penicillium euglaucum)CICC 41097、雪白根霉(Rhizopus niveus)CICC 40729购于中国工业微生物菌种保藏管理中心(简称CICC,地址为:北京市朝阳区酒仙桥中路24号院6号楼,邮政编码:100015);8株饲料霉菌为发霉饲料中分离获得,分别进行编号依次为NHF-M1、NHF-M2、NHF-M3、NHF-M4、NHF-M5、NHF-M6、NHF-M7、NHF-M8。
本发明的高效的生物饲料防霉剂,是在水分≥40%的湿基发酵饲料中添加上述防霉剂,防霉剂在饲料中添加量1000-3000ppm,可以有效防止湿基发酵饲料霉变。
本发明的高效的生物饲料防霉剂,可以有效防止添加有湿基发酵豆粕的生物饲料霉变,提高生物饲料使用发酵豆粕量。
本发明的有益效果在于:
1、本发明的高效生物饲料防霉剂可抑制多数饲料霉菌的生长,具有广谱的杀菌抑菌功效。
2、本发明的生物饲料防霉剂用于湿基发酵饲料防霉,能有效防止高水分发酵饲料霉变,延长其使用周期。
3、本发明的生物饲料防霉剂使生物饲料保质期得到了较大程度的延长,合理使用本发明的饲料防霉剂,7-9月份可使生物饲料保质期达44天以上。
具体实施方式
下面结合实施例解释本发明,实施案例仅用于说明本发明。除非特别说明,本发明中所用的技术手段均为本领域技术人员所公知的方法。另外,实施方案应理解为说明性的,而非限制本发明的范围,本发明的实质和范围仅由权利要求书所限定。对于本领域技术人员而言,在不背离本发明实质和范围的前提下,对这些实施方案中的物料成分和用量进行的各种改变或改动也属于本发明的保护范围。
以下实施例中使用的总状毛霉(Mucor racemosus)CICC 40241、正灰绿青霉(Penicillium euglaucum)CICC 41097、雪白根霉(Rhizopus niveus)CICC40729购于中国工业微生物菌种保藏管理中心(简称CICC,地址为:北京市朝阳区酒仙桥中路24号院6号楼,邮政编码:100015)。
在本发明中使用的原料均可以从市场购得。
实施例1饲料防霉剂筛选
1、饲料霉菌获得
取养殖动物饲料10g于90mm培养皿中,加入4mL自来水湿润饲料,放入28℃霉菌培养箱中培养5-7d,观察饲料霉变情况,取发霉饲料10g加入90mL无菌水中溶解后于孟加拉红培养基中分离饲料霉菌,观察菌落形态,挑取和总状毛霉(Mucor racemosus)CICC 40241、正灰绿青霉(Penicillium euglaucum)CICC 41097、雪白根霉(Rhizopus niveus)CICC40729 3株标准菌株不同的菌丝于马铃薯葡萄糖琼脂(PDA)平板进行纯培养,纯培养共获得8株饲料霉菌,分别进行编号依次为NHF-M1、NHF-M2、NHF-M3、NHF-M4、NHF-M5、NHF-M6、NHF-M7、NHF-M8,保藏备用。
2、饲料防霉剂抑制霉菌测定
检测丙酸钙、双乙酸钠、苯甲酸钠、柠檬酸、丙酸、山梨酸钠、乙酸、磷酸和乳酸单独情况下不同浓度对总状毛霉(Mucor racemosus)CICC 40241、正灰绿青霉(Penicilliumeuglaucum)CICC 41097、雪白根霉(Rhizopus niveus)CICC 40729、菌株NHF-M1、菌株NHF-M2、菌株NHF-M3、菌株NHF-M4、菌株NHF-M5、菌株NHF-M6、菌株NHF-M7、菌株和NHF-M8的抑制性能。结果如表1所示,可知苯甲酸钠、丙酸、乙酸和磷酸对饲料霉菌有较强抑制作用,乳酸也有一定的抑制作用。
其中采用生长速率法测定防霉剂对饲料霉菌的抑制效果。抑菌率计算公式如下:
表1不同浓度防霉剂对饲料霉菌的抑制效果
注:Mr为总状毛霉(Mucor racemosus)CICC 40241,Pe为正灰绿青霉(Penicilliumeuglaucum)CICC 41097,Rn为雪白根霉(Rhizopus niveus)CICC 40729
实施例2复合型饲料防霉剂
复合型饲料防霉剂,由下述重量份的组分制成:苯甲酸钠10公斤,丙酸10公斤,乙酸25公斤,磷酸5公斤,水10公斤。其添加量为1000ppm时,对11株饲料霉菌的抑制率达到100%,和表1结果对比发现,复合型饲料防霉剂比单一添加抑菌效果好。
实施例3复合型饲料防霉剂
复合型饲料防霉剂,由下述重量份的组分制成:苯甲酸钠20公斤,丙酸5公斤,乙酸10公斤,磷酸45公斤,水20公斤。其添加量为1000ppm时,对11株饲料霉菌的抑制率达到100%。
实施例4复合型饲料防霉剂
复合型饲料防霉剂,由下述重量份的组分制成:丙酸10公斤,乙酸25公斤。其添加量为3000ppm时,对11株饲料霉菌的抑制率达到100%。
实施例5复合型饲料防霉剂
复合型饲料防霉剂,由下述重量份的组分制成:丙酸5公斤,磷酸15公斤。其添加量为2500ppm时,对11株饲料霉菌的抑制率达到100%。
实施例6复合型饲料防霉剂
复合型饲料防霉剂,由下述重量份的组分制成:苯甲酸10公斤,丙酸5公斤,乙酸10公斤,磷酸20公斤,乳酸20公斤,水10公斤。其添加量为1000ppm时,对11株饲料霉菌的抑制率达到100%。
实施例7复合型饲料防霉剂在湿基发酵原料中的应用
取水分40%-45%的湿基发酵原料500g(本公司生产),按照表2中不同添加量加入复合型饲料防霉剂混合均匀。将混合好的湿基发酵饲料置于灭绝三角瓶中,用牛皮纸封口并置于霉菌培养箱中(温度28℃,湿度60-70%)放置2个月,每隔15天观察记录霉变情况。结果如表2所示,可知本发明的复合型饲料防霉剂对于高水分(40%-45%)湿基发酵原料有很好的防霉效果。
表2复合型饲料防霉剂在不同湿基发酵原料中的防霉效果
注:其中,添加量以湿基发酵原料的总量为基础,√——正常,+——发霉,数量表示发霉程度,数量越多表示发霉越严重。
实施例8复合型饲料防霉剂在生物饲料中的应用
将本发明实施例2中复合型饲料防霉剂按1000ppm添加量添加到生物饲料中进行饲料防霉试验,生物饲料中添加发酵豆粕比例(替换原有配方中的豆粕或蛋白类原料)如表3,制备好的生物饲料用带内衬的饲料包装袋包装,并贮存于28-30℃,湿度60-70%的仓库,试验时间为7月-9月,按照表3中时间要求进行取样检测,参考《中华人民共和国国家标准GB/T13092-2006饲料中霉菌总数的测定》测定饲料中的霉菌总数。结果如表3所示,可知本发明的复合型饲料防霉剂能很好的延长生物饲料保质期,由此可以增加湿基发酵原料的应用。
表3复合型饲料防霉剂在添加了发酵豆粕的生物饲料中的防霉效果
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (9)
6.根据权利要求1所述的复合型饲料防霉剂,其特征在于包括按重量份计的以下组分:
丙酸 10份 乙酸 25份。
7.根据权利要求1所述的复合型饲料防霉剂,其特征在于包括按重量份计的以下组分:
丙酸 5份 磷酸 15份。
9.根据权利要求1-8任一所述的复合型饲料防霉剂的应用,其特征在于在复合型饲料中的添加量为1000-3000ppm。
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