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CN105707062A - 一种含有乳链菌肽的杀菌水乳剂 - Google Patents

一种含有乳链菌肽的杀菌水乳剂 Download PDF

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CN105707062A
CN105707062A CN201610169684.7A CN201610169684A CN105707062A CN 105707062 A CN105707062 A CN 105707062A CN 201610169684 A CN201610169684 A CN 201610169684A CN 105707062 A CN105707062 A CN 105707062A
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aqueous emulsion
emulsion containing
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bactericidal aqueous
nisin
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张玉坤
周斌
彭述明
曹希敏
康逢斌
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Guangdong Zhongxun Agri Science Corp
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Abstract

本发明公开了一种含有乳链菌肽的杀菌水乳剂,包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂及去离子水。本发明解决了现有技术中,无法实现含有多肽活性成分的液体剂型水乳剂的技术难题,符合国家提倡的选用环保型水乳剂的理念。本发明不含有芳香烃类有机溶剂,将对环境的污染降低到最小;不易燃,不易爆,不易挥发,从而保证了在施药时减少对施药人员的毒害,比同类水乳减少有机溶剂50%左右,比同类水乳减少乳化剂50%以上,因此很大程度上降低了生产厂家投入的成本。

Description

一种含有乳链菌肽的杀菌水乳剂
技术领域
本发明涉及农药杀菌水乳剂技术领域,尤其是涉及一种乳链菌肽在杀菌水乳剂中的应用技术。
背景技术
乳链菌肽是一种由乳酸乳球菌用蛋白质原料经过发酵生物合成的由34个氨基酸组成的小肽,具有广谱抗真菌活性,而且稳定性好、抑菌持久,该品可以通过抑制真菌孢子萌发、菌丝生长,从而发挥抗真菌生长作用。该品对棉花黄萎病菌、棉花枯萎病菌、小麦赤霉病菌、小麦纹枯病菌、白粉病、蔬菜灰霉病和霜霉病、甜瓜疫霉病菌等病原菌均有较强的抑制生长作用和防治效果。
发明内容
本发明将乳链菌肽和杀菌剂复配后在水乳剂型中的应用技术,提供一种具有增效作用且安全环保的杀菌组合物,实现提高药效、减少污染、降低成本的目的。
本发明技术方案:一种含有乳链菌肽的杀菌水乳剂,所述的杀菌水乳剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水。
一升所述杀菌水乳剂中包含以下各组分(以质量浓度计量):
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:80-350g/L的嘧菌酯、醚菌酯、吡唑醚菌酯、苯醚甲环唑、丙环唑、三唑酮、氟环唑、氟硅唑、稻瘟灵、异稻瘟净、烯酰吗啉中的至少一种;
所述的防冻剂选用:20-80g/L的乙醇、乙二醇中的一种;
所述的乳化剂选用:50-100g/L的烷基酚聚氧乙烯醚类化合物、苯乙基酚聚氧乙烯醚类化合物或三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物类化合物中的至少一种;
所述的增稠剂选用:2-5g/L的羧甲基纤维素;
所述的溶剂选用:150-300g/L的异辛醇、正辛醇、异丁醇、正丁醇、异丙醇、聚乙二醇、N-辛基吡咯烷酮、N-甲基吡咯烷酮、醋酸仲丁酯中的至少一种。
余量为去离子水补足1L体积容量。
本领域内技术人员可以采用公知的方法制成本发明所述的水乳剂。
本发明具有以下特点:①两种成分复配,有增效作用;②杀菌作用强,不易产生抗药性;③剂型先进,环保;④两成分之间无交互抗性。
本发明提供了一种持效期长、低毒、对环境友好、人畜安全,对病害不易产生抗药性的水乳制剂;该制剂性能稳定,易降解,对农作物病害持效期长高,对环境污染很小。与现有技术相比,提供了一种更为环境友好的农药制剂,满足农业病害的无公害防治需要。
具体实施方式
为了更好地理解本发明的实质,下面结合实施例对本发明的内容作进一步详述,实施例中所提及的内容并非对本发明的限定,以下所述仅用于解释本发明,对于不偏离本发明精神和原则所做的修改、替换或改进,均属于本发明要求保护的范围。
实施例1:乳链菌肽和抑霉唑室内测定试验。
为确定乳链菌肽和抑霉唑两种有效成分复配的增效作用,申请人首先使用这两种成分进行了室内生测试验,试验方法以及结果如下:
首先分析了两种有效成分的作用特点后,我们将生测的对象定为青霉菌,该霉菌可以使果皮变软腐烂,扩展迅速,在病斑处轻压,果皮易破裂。病部先长出白色菌丝,很快就转变为绿色霉层,在高温高湿条件下,从开始发病到全果腐烂只需1-2周。
室内生测的试验方法:采用生长速率法测定药剂对柑橘青霉菌菌丝生长的抑制作用。在预备试验的基础上,从各药剂对病菌菌丝生长抑制率达10%-90%范围内设计5个浓度,先将70%乳链菌肽原药和96%抑霉唑原药以丙酮为溶剂配成系列浓度的药液备用,然后将药液按1%比例加入到已融化并冷却到室温的PDA培养基中,充分摇匀后,倒入灭菌的培养皿(Φ90mm)中制成带药平板,每处理四次重复,以加入无菌水的处理为空白对照;用灭菌的打孔器(Φ5mm)挑取柑橘青霉病和绿霉病菌饼,菌丝面朝下无菌接种于带药平板的中央,倒置于25℃的恒温培养箱内培养,培养6d后采用十字交叉法测量菌落直径,计算出各药剂对病原菌的EC50,并按照下述公式计算毒力指数,比较不同药剂的毒力及抑菌作用。上述生测试验所用原药以及试剂均从其他厂家购买。
混配制剂的联合毒力采用孙云沛的共毒系数方法表示:
混配制剂的理论毒力指数TTI=∑(某药的毒力指数ATI×在混剂中该药有效成分的百分率)。
CTC大于120时为增效作用,小于80时为拮抗作用,介于80-120之间时为加和作用。
表1、多肽乳链菌肽、杀菌剂抑霉唑及其不同配比对柑橘青霉病共毒系数的测定结果。
分析上述数据,可以明显看出当乳链菌肽和抑霉唑以不同比例复配时,配方对柑橘青霉病的共毒系数(CTC)均大于120,对柑橘青霉病防治能力都有不同比例的增效作用,其中乳链菌肽和抑霉唑在1:1-10:1之间即配比五到配比七之间的增效最为显著可见。
通过室内生测试验确定乳链菌肽和抑霉唑两种有效成分复配能够有很好的增效作用,可成为防治柑橘储藏病害的理想药剂。
以下通过制备实施例用以进一步详细说明本发明,但本发明绝非仅仅限于以下这些实施例。配方中百分比均为重量百分比,所使用的原药及助剂均为其他厂家购买。
实施例2:250g/L乳链菌肽·嘧菌酯水乳剂。
一种农药杀菌剂,其特征在于,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:230g/L的嘧菌酯;
所述的防冻剂选用:22g/L的乙醇;
所述的乳化剂选用:25g/L的壬基酚聚氧乙烯醚与25g/L农乳602#的混合物;
所述的增稠剂选用:3g/L的羧甲基纤维素;
所述的溶剂选用:160g/L的N-甲基-2吡咯烷酮和50g/L醋酸仲丁酯;
余量为去离子水补足1L体积容量。
将嘧菌酯加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的250g/L乳链菌肽·嘧菌酯水乳剂。
实施例3:150g/L乳链菌肽·苯醚甲环唑水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:130g/L的苯醚甲环唑;
所述的防冻剂选用:20g/L的乙二醇;
所述的乳化剂选用:35g/L的壬基酚聚氧乙烯醚与35g/L的EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物;
所述的增稠剂选用:5g/L的羧甲基纤维素;
所述的溶剂选用:60g/L的N,N-二甲基甲酰胺和200g/LN-甲基吡咯烷酮;
余量为去离子水补足1L体积容量。
将苯醚甲环唑加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的150g/L乳链菌肽·苯醚甲环唑水乳剂。
实施例4:110g/L乳链菌肽·醚菌酯水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:90g/L的醚菌酯;
所述的防冻剂选用:25g/L的乙二醇;
所述的乳化剂选用:35g/L的壬基酚聚氧乙烯醚与35g/L的EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物;
所述的增稠剂选用:4.5g/L的羧甲基纤维素;
所述的溶剂选用:180g/L的N-甲基吡咯烷酮和70g/L的醋酸仲丁酯;
余量为去离子水补足1L体积容量。
将醚菌酯加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的110g/L乳链菌肽·醚菌酯水乳剂。
实施例5:125g/L乳链菌肽·烯酰吗啉水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:105g/L的烯酰吗啉;
所述的防冻剂选用:25g/L的乙二醇;
所述的乳化剂选用:25g/L的壬基酚聚氧乙烯醚与30g/L的EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物;
所述的增稠剂选用:3.5g/L的羧甲基纤维素;
所述的溶剂选用:180g/L的N-甲基吡咯烷酮和70g/L的醋酸仲丁酯;
余量为去离子水补足1L体积容量。
将烯酰吗啉加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的125g/L乳链菌肽·烯酰吗啉水乳剂。
实施例6:130g/L乳链菌肽·三唑酮水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:110g/L的三唑酮;
所述的防冻剂选用:33g/L的乙醇;
所述的乳化剂选用:30g/L的壬基酚聚氧乙烯醚和30g/L的农乳602#的混合物;
所述的增稠剂选用:4g/L的羧甲基纤维素;
所述的溶剂选用:200g/L的异辛醇和40g/L正丁醇;
余量为去离子水补足1L体积容量。
将三唑酮加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的130g/L乳链菌肽·三唑酮水乳剂。
实施例7:108g/L乳链菌肽·异稻瘟净水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:88/L的异稻瘟净;
所述的防冻剂选用:55g/L的乙醇;
所述的乳化剂选用:10g/L的壬基酚聚氧乙烯醚和70g/L的农乳602#的混合物;
所述的增稠剂选用:2.8g/L的羧甲基纤维素;
所述的溶剂选用:170g/L的醋酸仲丁酯和30g/L正丁醇;
余量为去离子水补足1L体积容量。
将异稻瘟净加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的108g/L乳链菌肽·异稻瘟净水乳剂。
实施例8:250g/L乳链菌肽·氟硅唑水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:230/L的氟硅唑;
所述的防冻剂选用:75g/L的乙二醇;
所述的乳化剂选用:45g/L的壬基酚聚氧乙烯醚与55g/L的EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物;
所述的增稠剂选用:4.5g/L的羧甲基纤维素;
所述的溶剂选用:130g/L的N-甲基吡咯烷酮和50g/L的醋酸仲丁酯;
余量为去离子水补足1L体积容量。
将氟硅唑加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的250g/L乳链菌肽·氟硅唑水乳剂。
实施例9:140g/L乳链菌肽·丙环唑水乳剂。
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:120g/L的丙环唑;
所述的防冻剂选用:56g/L的乙二醇;
所述的乳化剂选用:65g/L的EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物与15g/L农乳602#的混合物;
所述的增稠剂选用:2.5g/L的羧甲基纤维素;
所述的溶剂选用:100g/L的异丙醇和80g/L异丙醇;
余量为去离子水补足1L体积容量。
将丙环唑加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的140g/L乳链菌肽·丙环唑水乳剂。
实施例10:240g/L乳链菌肽·氟环唑水乳剂
一种农药杀菌剂,以质量浓度计量,配置一升农药杀菌剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水;
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:220g/L的氟环唑;
所述的防冻剂选用:65g/L的乙醇;
所述的乳化剂选用:58g/L的壬基酚聚氧乙烯醚与32g/L农乳602#的混合物;
所述的增稠剂选用:3.5g/L的羧甲基纤维素;
所述的溶剂选用:75g/L的聚乙二醇和100g/LN-辛基吡咯烷酮;
余量为去离子水补足1L体积容量。
将氟环唑加到反应釜后,依次加入溶剂、多肽、乳化剂、防冻剂,搅拌溶解后,再加入溶有羧甲基纤维素的去离子水溶物,补足所需体积,再高速剪切、搅拌即得到所需的240g/L乳链菌肽·氟环唑水乳剂。
由上述实施制备实例得到的水乳制剂与现有农药剂型相比不经提高了稳定性,还延长了持效期,减少了施用次数和施用量,还减轻了其对环境和农产品的不良影响,因而提高了用药的安全性。
实施例11:田间药效试验
田间药效试验表明,加入多肽的水乳制剂,药后15天病害防效均在95%以上,优于对照水乳制剂没有加入多肽的85%以上,加入多肽的水乳制剂,药后90天仍能维持病害防效90%以上,优于对照水乳制剂没有加入多肽的80%以上。

Claims (9)

1.一种含有乳链菌肽的杀菌水乳剂,其特征在于,所述的杀菌水乳剂包括:多肽、杀菌剂、防冻剂、乳化剂、增稠剂、溶剂以及去离子水。
2.根据权利要求1所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:一升所述杀菌水乳剂中包含以下各组分,以质量浓度计量:
所述的多肽选用:20g/L乳链菌肽;
所述的杀菌剂选用:80-350g/L的嘧菌酯、醚菌酯、吡唑醚菌酯、苯醚甲环唑、丙环唑、三唑酮、氟环唑、氟硅唑、稻瘟灵、异稻瘟净、烯酰吗啉中的至少一种;
所述的防冻剂选用:20-80g/L的乙醇、乙二醇中的一种;
所述的乳化剂选用:50-100g/L的烷基酚聚氧乙烯醚类化合物、苯乙基酚聚氧乙烯醚类化合物或三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物类化合物中的至少一种;
所述的增稠剂选用:2-5g/L的羧甲基纤维素;
所述的溶剂选用:150-300g/L的异辛醇、正辛醇、异丁醇、正丁醇、异丙醇、聚乙二醇、N-辛基吡咯烷酮、N-甲基吡咯烷酮、醋酸仲丁酯中的至少一种。
余量为去离子水补足1L体积容量。
3.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的乳化剂是50-70g/L的烷基酚聚氧乙基醚类与苯乙基酚聚氧乙烯醚类的混合物。
4.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的烷基酚聚氧乙烯醚类化合物是壬基酚聚氧乙烯醚。
5.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的苯乙基酚聚氧乙烯醚类化合物是农乳602#。
6.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物类化合物是EPE型三苯乙基苯酚聚氧丙烯聚氧乙烯嵌段聚合物。
7.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的烷基酚聚氧乙基醚类化合物与苯乙基酚聚氧乙烯醚类化合物的质量比为1-5∶5-1。
8.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的增稠剂是2-5g/L的羧甲基纤维素。
9.根据权利要求2所述的一种含有乳链菌肽的杀菌水乳剂,其特征在于:所述的溶剂是150-250g/L的N-甲基-2吡咯烷酮或醋酸仲丁酯。
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CN109090160A (zh) * 2018-09-14 2018-12-28 安徽省益农化工有限公司 一种环保型含多种中药成分的杀菌水乳剂
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CN110881467A (zh) * 2019-12-13 2020-03-17 江西正邦作物保护有限公司 一种含丙硫菌唑和乳酸链球菌素的组合杀菌物
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CN110678076A (zh) * 2017-06-02 2020-01-10 美国赛多美科技有限公司 植物处理产品和相关方法
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CN113040314A (zh) * 2021-01-25 2021-06-29 杭州龙能科技有限公司 一种环保消毒液及其制备工艺
CN113040314B (zh) * 2021-01-25 2024-02-09 杭州龙能科技有限公司 一种环保消毒液及其制备工艺

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