An internationally recognized testing institution, assisting enterprises in achieving technological advancement.
ZHONGXI Testing has obtained inspection qualification certifications from multiple countries and regions worldwide. We possess a senior testing team and advanced testing methods, providing independent, impartial, and professional third-party verification services for global carbon projects.
Certified by multiple international standards such as CNAS, VCS, and GS, with reports universally applicable worldwide.
Covering 140+ countries and regions, it supports on-site detection and remote verification in multiple languages.
Adopt standard experimental methods to ensure accurate and reliable data.
Glucanases (EC 3.2.1.x) are a diverse group of hydrolytic enzymes that catalyse the cleavage of β‑glucosidic bonds in glucan polymers, including cellulose, laminarin, and mixed‑linkage β‑glucans. These enzymes are indispensable in numerous industrial applications, including brewing, animal feed production, biofuel manufacturing, textile processing, and food clarification. The precise and reliable measurement of glucanase activity, protein abundance, and stability is essential for ensuring batch‑to‑batch consistency, optimising fermentation parameters, validating product shelf‑life, and meeting stringent regulatory standards. Our specialised detection platform provides a fully validated suite of analytical and biochemical assays tailored to glucanases from fungal, bacterial, and recombinant sources, delivering the high‑precision, actionable data that clients need to maintain product excellence and accelerate innovation.

Clients seeking glucanase detection services are typically driven by one or more of the following critical objectives: (i) quantifying enzyme activity to ensure that each batch meets the specified potency for its intended application (e.g., mash filtration in brewing, viscosity reduction in animal feed); (ii) characterising enzyme stability under various pH, temperature, and storage conditions to determine optimal handling and shelf‑life; (iii) monitoring enzyme purity and the presence of contaminating activities (e.g., protease, cellulase) that could affect downstream processes; (iv) evaluating the kinetic parameters (Km, Vmax, kcat) and substrate specificity of novel or engineered glucanase variants; (v) conducting comparative studies to select the most suitable enzyme preparation for a given industrial process; and (vi) complying with regulatory documentation requirements for enzyme preparations used in food and feed. Our service is specifically designed to address these needs with scientific rigour, providing clients with a complete functional and molecular fingerprint of their glucanase product.
Our analytical platform integrates four interconnected modules that together deliver a holistic evaluation of glucanase quality and performance. The Activity Quantification Module employs well‑established colorimetric and fluorometric assays using substrates such as AZCL‑barley β‑glucan, lichenin, or carboxymethyl‑cellulose (CMC) for endo‑glucanase activity, and p‑nitrophenyl‑β‑D‑glucoside for exo‑glucanase activity. We determine the optimal pH and temperature profiles and calculate Michaelis‑Menten parameters with precision within ±3% RSD and a limit of detection (LOD) as low as 0.001 U/mL. For high‑throughput screening, we offer a fluorescent resonance energy transfer (FRET)‑based assay with a linear dynamic range spanning four orders of magnitude. The Protein Quantitation and Purity Module uses Bradford, BCA, or amino acid analysis to determine total protein content, and SDS‑PAGE with densitometric scanning or size‑exclusion chromatography (SEC‑HPLC) to assess purity and detect aggregates or fragments, providing LOQs of 0.1 µg/mL for protein and 0.1% (area%) for impurity detection. The Stability and Formulation Module subjects the enzyme to accelerated aging conditions (various temperatures, pH, and ionic strengths) and monitors residual activity over time, using Arrhenius modelling to predict shelf‑life and identify critical degradation pathways. The Substrate Specificity Module evaluates activity against a panel of natural and synthetic glucans (e.g., barley β‑glucan, laminarin, pustulan, CMC) to generate a specificity fingerprint, which is essential for ensuring consistent performance in complex industrial matrices. All modules are validated with certified reference glucanases and include rigorous quality controls (system suitability, blank subtraction, and replicate analyses) to guarantee data reliability.
Our platform routinely delivers performance that surpasses typical industry and academic standards. In activity assays, we achieve signal‑to‑noise ratios > 200:1 at LOD, and our kinetic analysis software uses global fitting algorithms to provide precise parameter estimates with 95% confidence intervals typically within ±5%. For protein purity, our SEC‑HPLC method provides baseline resolution of enzyme monomer, dimer, and high‑molecular‑weight aggregates, with retention time reproducibility < 0.2% RSD. We also offer capillary electrophoresis (CE) to resolve charge variants arising from deamidation or glycosylation heterogeneity. For mechanistic studies, we perform differential scanning calorimetry (DSC) to measure thermal stability (Tm) and isothermal titration calorimetry (ITC) to assess substrate binding thermodynamics, providing a deeper understanding of enzyme function and robustness. Furthermore, we offer LC‑MS/MS based peptidomics to confirm the primary sequence and identify post‑translational modifications. This multi‑dimensional data set enables our clients to not only quantify activity but also to understand the molecular determinants of performance, facilitating informed decisions in enzyme selection, formulation, and process design.
Our service provides several unique benefits that directly address client challenges. First, we have developed matrix‑specific sample preparation protocols for a wide range of glucanase products—including liquid concentrates, spray‑dried powders, and fermentation broths—that effectively remove interfering components while preserving enzymatic activity, achieving recoveries > 95% for all tested matrices. Second, we maintain a comprehensive reference library of glucanase isozymes from various industrial strains, enabling rapid identification and benchmarking against market standards. Third, we offer a rapid screening service using a microplate‑based colorimetric assay that provides semi‑quantitative activity data within 3 hours of sample receipt—ideal for in‑process control and early‑stage formulation development. Fourth, our customised stability studies can simulate real‑world storage and transport conditions, and we provide clients with statistically robust recommendations for stabilizers, buffers, and packaging. Fifth, we provide integrated data interpretation that links activity, purity, and stability to industrial performance metrics (e.g., viscosity reduction, filtration efficiency), enabling clients to predict on‑site performance without costly pilot trials. Sixth, all our methods comply with ICH Q2(R1), AOAC, and ISO 17025 guidelines, and we supply full validation dossiers (specificity, linearity, accuracy, precision, LOD, LOQ, robustness) along with detailed SOPs, ensuring that our data are readily accepted by regulatory bodies and customers. Our team of enzymologists, protein chemists, and process engineers provides consultative interpretation, helping clients to translate analytical findings into actionable improvements—for example, advising on the optimal pH for maximum activity in a specific industrial mash, or recommending a heat‑treatment step to inactivate contaminating proteases.
Our reporting transforms analytical data into strategic operational knowledge. We deliver a comprehensive final report that includes: (i) an executive dashboard with key metrics (specific activity, Km, purity %, shelf‑life estimate) presented as concise scorecards; (ii) a detailed analytical section containing raw data, calibration curves, chromatograms, and kinetic fits; (iii) a statistical comparison of samples against reference standards or historical batches, with p‑values and confidence intervals; and (iv) an interpretive narrative that contextualises the results—for example, explaining how a lower than expected Vmax may indicate partial denaturation, or how a shift in pH optimum could affect performance in a specific process. For clients with multiple batches or formulation variants, we provide multivariate analysis (PCA, PLS‑DA) to identify critical quality attributes and process parameters. We also offer predictive models that estimate remaining activity under future storage conditions, enabling proactive inventory management. All raw data files (e.g., .xlsx, .raw, .cdf) are supplied to ensure full transparency and re‑analysis capability.
The versatility of our glucanase detection service spans a wide range of sectors. In brewing and beverage production, our assays ensure that β‑glucanase preparations effectively reduce mash viscosity and improve filtration rates. In animal feed manufacturing, we help optimise enzyme addition to enhance the digestibility of barley‑ and wheat‑based feeds. In biofuel production, our characterisation of cellulase and β‑glucanase cocktails supports the efficient conversion of lignocellulosic biomass to fermentable sugars. In textile processing, our testing verifies the performance of glucanases used for biopolishing and desizing. In pharmaceutical and food ingredient development, our purity and stability data substantiate safety and efficacy claims. In academic research, our detailed kinetic and structural profiling supports publication‑quality studies on enzyme evolution and protein engineering. Our ability to tailor the analytical package to the specific enzyme type, application, and regulatory framework ensures that we serve both small research groups and large industrial enterprises with equal rigor and responsiveness.
We are dedicated to advancing glucanase analytics through continuous technological improvement. Our current R&D includes the development of lab‑on‑a‑chip electrophoretic systems for rapid on‑site activity monitoring, and the application of machine learning to predict enzyme performance from sequence and structural data. We actively participate in inter‑laboratory proficiency testing for enzyme activity and protein analysis, and we contribute to the development of standard reference materials for industrial enzymes. Our quality management system is ISO 9001 and ISO 17025 certified, and we follow GLP for all regulatory studies. We offer flexible engagement models—from single‑sample analysis to multi‑year collaborative projects—with dedicated project managers, volume discounts, and priority handling for time‑sensitive samples. Our global logistics provide specialised shipping kits (with stabilising buffers and temperature control) to preserve enzyme activity during transit. Turnaround times range from 2 business days for rapid activity screening to 10 business days for comprehensive kinetic and stability profiling. We maintain open communication, providing preliminary results upon request and final reports with expert commentary. Our success is measured by the confidence our clients have in their products and processes. We invite you to partner with us to unlock the full potential of your glucanase‑based technologies.
In summary, our glucanase detection service delivers a comprehensive, precise, and application‑oriented analytical solution that integrates enzyme activity, protein purity, stability, and substrate specificity. By combining advanced instrumentation with deep biochemical expertise, we empower our clients to ensure product quality, optimise industrial processes, and accelerate innovation. We look forward to supporting your glucanase analysis needs with our state‑of‑the‑art analytical platform.