外切-β-1检测_检测机构_检测报告_中析研究所「检测中心」

检测信息（部分）

外切-β-1，通常指外切-β-1,3-葡聚糖酶或相关β-葡聚糖外切酶，是一类能够从β-葡聚糖分子的非还原末端水解β-1,3-糖苷键或β-1,4-糖苷键，释放出葡萄糖或龙胆二糖的水解酶类。该酶制剂广泛应用于饲料添加剂、啤酒酿造、食品加工、纺织退浆及生物能源转化等领域，对于提高营养物质利用率、降低溶液粘度、改善加工性能具有重要作用。检测机构依据国家标准、行业标准及国际通用方法，对外切-β-1酶制剂的酶活活性、纯度、理化指标及安全性进行系统检测，出具具备CMA或CNAS资质的检测报告，为产品质量控制、贸易验收及科研开发提供数据支持。

总结

外切-β-1检测涉及酶学性质、理化指标、卫生安全等多个维度，检测数据的准确性直接关系到酶制剂产品的应用效果与合规性。通过采用分光光度法、色谱法、原子光谱法等分析手段，结合国家标准方法体系，可全面评价外切-β-1酶的催化性能与质量特征。检测机构出具的CMA检测报告能够为生产企业的质量控制、产品研发优化及市场流通提供科学依据，助力酶制剂行业的高质量发展。

外切-β-1检测方法（部分）

DNS法（3,5-二硝基水杨酸法）：利用DNS与还原糖显色反应测定生成的还原糖量，计算酶活力。
Somogyi-Nelson法：通过铜试剂与还原糖反应显色测定酶活，灵敏度高于DNS法。
碘-淀粉显色法：适用于部分多糖底物降解过程的定性或半定量分析。
高效液相色谱法（HPLC）：精确分离定量酶解产生的葡萄糖、纤维二糖等产物。
福林酚法（Lowry法）：测定蛋白质含量，适用于酶比活力的计算。
考马斯亮蓝法（Bradford法）：快速测定蛋白质浓度，操作简便、灵敏度高。
凯氏定氮法：通过测定总氮量换算蛋白质含量，是食品饲料蛋白测定的国标方法。
原子吸收光谱法（AAS）：采用火焰或石墨炉法测定重金属元素含量。
原子荧光光谱法（AFS）：用于砷、汞等氢化物发生元素的测定，干扰少、灵敏度高。
平板计数法：依据GB 4789系列标准，测定菌落总数、霉菌酵母等微生物指标。
SDS-PAGE电泳法：变性聚丙烯酰胺凝胶电泳分析酶蛋白的纯度与分子量。
烘干称重法：测定水分及挥发物、灰分等理化指标。

检测范围（部分）

饲料级外切-β-1酶制剂
食品级外切-β-1酶制剂
工业级外切-β-1酶制剂
液体型外切-β-1酶制剂
固体粉末型外切-β-1酶制剂
颗粒包被型外切-β-1酶制剂
复合酶制剂中的外切-β-1组分
微生物发酵原酶液
工程重组外切-β-1酶
植物提取外切-β-1酶
啤酒酿造专用糖化酶
麦芽提取物
功能性低聚糖生产用酶
纺织退浆用生物酶制剂
纸浆漂白用酶制剂
面包改良剂
果汁澄清用酶制剂
青贮饲料添加剂
宠物食品添加剂
水产养殖饲料添加剂

检测标准（部分）

序号	标准号	标准名称	类别	发布日期	ICS分类
1	DIN EN 1999-1-1/A1:2026-04	Eurocode 9 - Design of aluminium structures - Part 1-1: General rules; German and English version EN 1999-1-1:2023/prA1:2026	(DE-DIN)德国标准化学会	2026-04-01	91.010建筑工业
2	DIN EN 1991-1-1/A1:2026-05	Eurocode 1 - Actions on structures - Part 1-1: Specific weight of materials, self-weight of construction works and imposed loads for buildings; German and English version EN 1991-1-1:2025/prA1:2026	(DE-DIN)德国标准化学会	2026-05-01	91.010建筑工业
3	DIN EN 1998-1-1/A1:2026-04	Eurocode 8 - Design of structures for earthquake resistance - Part 1-1: General rules and seismic action; German and English version EN 1998-1-1:2024/prA1:2026	(DE-DIN)德国标准化学会	2026-04-01	91.010建筑工业
4	DIN EN 1993-1-1/A1:2026-04	Eurocode 3 - Design of steel structures - Part 1-1: General rules and rules for buildings; German and English version EN 1993-1-1:2022/prA1:2026	(DE-DIN)德国标准化学会	2026-04-01	91.010建筑工业
5	DIN EN 1996-1-1/A1:2026-05	Eurocode 6 - Design of masonry structures - Part 1-1: General rules for reinforced and unreinforced masonry structures; German and English version EN 1996-1-1:2022/prA1:2026	(DE-DIN)德国标准化学会	2026-05-01	91.010建筑工业
6	DIN EN 1992-1-1/A1:2026-06	Eurocode 2 - Design of concrete structures - Part 1-1: General rules and rules for buildings, bridges and civil engineering structures; German and English version EN 1992-1-1:2023/prA1:2026	(DE-DIN)德国标准化学会	2026-06-01	91.010建筑工业
7	DIN EN 62702-1-1 Berichtigung 1:2018-08	Audio Archive System - Part 1-1: DVD disk and data migration for long term audio data storage (IEC 62702-1-1:2016/COR1:2018); English version EN 62702-1-1:2016/AC:2018-04	(DE-DIN)德国标准化学会	2018-08-01	01.140信息学、出版
8	1A1W1S1 Archive Product 536	Standard WPS for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1 1/2" Thick, E7018, As-Welded or PWHT Condition, Primarily Pipe Applications	(UNKNOWN)其他未分类	2019-03-01
9	1A1W1S1 Archive Product 535	Standard WPS for Gas Tungsten Followed by Shielded Metal Arc Welding of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1 1/2" Thick, ER70S-2 and E7018, As-Welded or PWHT Condition, Primarily Pipe Applications	(UNKNOWN)其他未分类	2019-03-01
10	1A1W1S1 Archive Product 538	Standard WPS for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 3/4" Thick, E6010 (Vertical Downhill) Followed by E7018 (Vertical Uphill), As-Welded Condition, Primarily Pipe Applications	(UNKNOWN)其他未分类	2019-03-01
11	T/UNP 1-1	1	(CN-TUANTI)团体标准	2024-12-12	01.020术语学(原则和协调配合)
12	1A1W1S1 Archive Product 508	Standard Welding Procedure Specification (SWPS) for Shielded Metal Arc Welding of Carbon Steel (M-1/P-1, Group 1 or 2), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, E6010 (Vertical Downhill) Followed by E7018, As-Welded or PWHT Condition, Primarily Plate and Structural Application	(UNKNOWN)其他未分类	2018-04-10
13	1A1W1S1 Archive Product 373	Standard WPS for Gas Tungsten Arc Welding with Consumable Inserts of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1 1/2" Thick, INMs-1 and ER70S-2, As-Welded or PWHT Condition, Primarily Pipe Applications	(UNKNOWN)其他未分类	2012-03-29
14	1A1W1S1 Archive Product 517	Standard Welding Procedure Specification for Naval Applications (SWPS-N) for Gas Tungsten Arc Welding with Consumable Insert Root of Austenitic Stainless Steel (S-8), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, MIL-3XX, in the As-Welded Condition, Primarily Pipe for Naval Applications	(UNKNOWN)其他未分类	2018-08-03
15	IEC 62820-1-1:2026	Building intercom systems - Part 1-1: System requirements - General	(IX-IEC)国际电工委员会	2026-03-30	13.320报警和警告系统
16	1A1W1S1 Archive Product 457	Standard Welding Procedure Specification for Naval Applications (SWPS-N) for Gas Tungsten Arc Welding of Austenitic Stainless Steel (S-8), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, MIL-3XX, in the As-Welded Condition, Primarily Pipe for Naval Applications	(UNKNOWN)其他未分类	2016-01-01
17	1A1W1S1 Archive Product 464	Standard Welding Procedure Specification for Naval Applications (SWPS-N) for Shielded Metal Arc Welding of Carbon Steel (S-1), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, MIL-7018-M, in the As-Welded or PWHT Condition, Primarily Pipe for Naval Applications	(UNKNOWN)其他未分类	2015-11-10
18	IEC 60794-1-1:2023	Optical fibre cables - Part 1-1: Generic specification - General	(IX-IEC)国际电工委员会	2023-05-22	33.180.10光纤和光缆
19	IEC 60404-1-1:2004/AMD1:2024	Amendment 1 - Magnetic materials - Part 1-1: Classification - Surface insulations of electrical steel strip, sheet and laminations	(IX-IEC)国际电工委员会	2024-07-12	29.030磁性材料
20	IEC 61784-1-1:2023	Industrial networks - Profiles - Part 1-1: Fieldbus profiles - Communication Profile Family 1	(IX-IEC)国际电工委员会	2023-03-22	35.240.50信息技术在工业中的应用