Probiotic Quality Control Solutions
Customer: Suzhou Probiotics Industry Leading Enterprise
Requirement: Solve product appearance quality stability issues, especially when testing white powder products containing natural ingredients.
Hoopu Solution:
We have prepared a solution for the HPC-821 Benchtop Spectrophotometer from Haopu Jia for our clients in advance.
The HPC-821 Benchtop Spectrophotometer is equipped with a dual-beam spectrophotometric system that utilizes a D/8 geometric optical structure and complies with international standards such as CIE No.15 and ISO 7724. It can accurately measure L*a*b* values, color difference (ΔE), and key parameters such as whiteness index. Its built-in SPECTRAL MAGIC 3.0 analysis software supports the establishment of an enterprise-specific color library, enabling full color traceability from raw material receipt to finished product shipment. Of particular note is the UV calibration function configured in HPC-821 which can effectively identify interference from fluorescent whitening agents, especially important for testing natural ingredient-containing white powder products for Microbial Probiotics.

Technician uses HPC-821 for testing
After multiple discussions with the company's technology and procurement teams, Haopu Jia customized a solution for customers: HC-700D portable spectrophotometer + custom measuring fixture for bacteria powder suspension
Compared to desktop spectrophotometers, the HC-700D portable spectrophotometer offers the advantage of being more convenient and flexible for measurements. It has excellent inter-table difference and repeatability, with ultra-high repeatability accuracy: dE*ab 0.02, providing precise and reliable measurement data. Using 400-700nm full-band LED light source, equipped with 12 kinds of measuring calibers to meet the measurement of various samples. Not only does it support connecting to a computer for data processing, but it also supports Android, iOS, and WeChat mini programs for data storage anytime, anywhere.

HC-700D offers more flexible and convenient measurement options.
In the context of increasingly激烈的 competition in the probiotic industry, subtle deviations in color parameters can affect consumers' perception of product freshness and efficacy. By introducing color difference detection equipment, this probiotic company not only resolved the subjective deviation issues of traditional visual color comparison methods but also elevated color quality control accuracy to a professional level of ΔE 0.08. The technical team has integrated this equipment into the GMP quality management system and applied it to key aspects such as verifying batch consistency of bacterial powder and testing capsule shell light transmittance. This allows us to avoid about 15 customer complaints due to color difference issues per year.
The localized technical support team provided by Haopujia also customized a special measuring fixture for bacterial powder suspension for enterprises, solving the industry challenge of measuring the optical properties of powder samples.
With accurate color data, future enterprises can also conduct multi-dimensional analysis between color data and HPLC detection results, exploring potential correlations between color parameters and microbial activity, further deepening the scientific dimension of quality control.



