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Product details
名称
β-葡聚糖酶 来源于木霉
英文别名
beta-Glucanase
货号
np226943-100g
包装规格
100g
级别
工业级
浓度
≥50 U/mg powder
产品介绍
β-葡聚糖酶是由木霉经诱变筛选的高产菌株,经液态深层通风发酵精制提取而成。该产品被广泛应用在啤酒、饲料、蔗糖、造纸、植物抗真菌性病害等领域。 原理 广义而言,β-葡聚糖酶是一切能分解β-糖苷键链成的葡萄糖聚合物的总称。包括1,3-1,4-β-葡聚糖酶、1,3-β-葡聚糖酶、1,2-1,4-β-葡聚糖酶、1,4-β-葡聚糖酶和1,3-1,6-β-葡聚糖酶,按作用方式不同分为内切和外切两类。该酶可将β-葡聚糖降解成低分子量片段,使其失去亲水性和粘性。 产品特性 1.温度范围:有效温度范围30-70℃,最适合作用温度在50-60℃,短时间(<30min)内60-70℃有较高的酶活性。 2.pH值范围:有效pH范围 3.5-5.5,最适pH值范围之间4.8-5.5。 3.金属离子对活性的影响:Cu2+,Mn2+和Fe3+对酶有抑制作用,Zn2+和Co2+有激活作用。 应用方法 1.在啤酒生产中,糖化开始时加入,推荐加量为 0.05-0.25L/t麦芽(酶活力以2万单位计)。可以很好的降低麦汁黏度,加快过滤速度,提高麦芽溶出率,改善啤酒感官指标。 2.在饲料复合酶中,该酶所占的添加量 0.02-0.1kg/t全价料(酶活力以2万单位计)。可降解动物肠道内容物粘度,消除抗营养因子作用,提高动物的生长性能。 3.蔗糖行业在因受微生物感染而出现糖液粘度增加、过滤困难、结晶困难时使用。作为起始点的试验添加量建议为0.05L/t干基(酶活力以2万单位计)。 4.其他行业的用量根据不同底物浓度和操作条件决定,建议在专业技术人员指导下从小剂量试验做起。 储存 本品系生物活性物质,高温、强酸、强碱将会引失活,应防止太阳直晒,宜放在低温干燥处。
生物活性
≥50 U/mg powder
来源
天然
种属
Trichoderma sp.
Safety
「No Dangerous Attributes」
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Research chemical 100g

Research chemical 100g; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: 100g.

item number:np226943-100g
Product model:100g
level: 100g
Lead Time:30days
sold 382 Items
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