Application of the VN3100 Portable Turbidimeter in Winemaking Facilities

As a fruit wine brewed through natural fermentation, wine is an extremely dispersed and complex chemical equilibrium system. In this sophisticated system, various components such as amino acids and proteins interact with each other, jointly forming the unique quality and flavor of wine. However, this system is quite "fragile"; any subtle changes in the surrounding environmental conditions such as temperature, humidity, and oxidation may disrupt the original balance. When the ambient temperature rises, humidity changes, or oxidation intensifies, the abundant amino acids and proteins in wine will undergo flocculation. This further causes the wine's color to become dull, its taste to lose richness and smoothness, and its aroma to no longer be rich and appealing, thus greatly reducing the sensory quality of the wine.

In terms of wine quality control, although the current national standard Wine (GB 15037-2006) does not impose mandatory requirements on the turbidity value of domestic wine products, numerous wine enterprises have long regarded turbidity testing as a key indicator in their internal quality control. Enterprises use turbidity measurement methods to accurately characterize the clarity of wine, and at the same time, utilize turbidity testing to verify the thermal stability of finished wine, so as to ensure wine quality. For the quality supervision of exported wine, Determination of Turbidity in Export Wine - Scattered Light Method (SN/T 4675.26-2016) sets clear and stringent requirements for turbidity measurement, which further highlights the importance of turbidity testing in the wine industry.

For wine producers, the primary purpose of using a turbidimeter is to test the Hot Stability of finished wine. When wine is exposed to an environment with a temperature above 30℃, the proteins in the wine will flocculate due to heat, resulting in wine turbidity and seriously affecting wine quality. Once the wine is detected to be unqualified in terms of hot stability, the enterprise needs to consider re-fining and filtering the wine to restore its clarity and stability.

A certain wine brewing enterprise has introduced the VN3100 Series Portable Turbidimeter into its Quality Control (QC) laboratory, applying it to the quality control process of wine production, and aiming to improve the accuracy and reliability of wine quality testing with this instrument.

① Main Instrument

The VN3100 Series Portable Turbidimeter adopted by this wine brewing enterprise is an advanced instrument specially designed for precise turbidity measurement. It has a number of unique technical advantages, providing strong support for wine turbidity testing.

② Comparison Between the New and Old Instruments

Before using the VN3100 Series Portable Turbidimeter, the enterprise had been using a turbidimeter of a certain brand for wine turbidity measurement. The old instrument adopted the scattered light single-point detection method, which exposed many problems in practical operation. When measuring the turbidity of wine, the readings of the turbidimeter kept fluctuating, making it difficult for laboratory personnel to determine the moment when stable readings were achieved, and thus unable to obtain accurate values. Moreover, the results obtained from each test varied significantly, with extremely low data repeatability and reliability, which seriously affected the accuracy and efficiency of wine quality testing.

The introduction of the VN3100 Series Portable Turbidimeter has completely changed this situation. Its proprietary ratio measurement system can provide ultra-high accuracy and repeatability for Quality Control (QC) work. Through advanced algorithms and technologies, the system accurately processes and analyzes detection data, effectively eliminating measurement errors caused by environmental factors and sample characteristics. Meanwhile, the VN3100 Series Portable Turbidimeter is also equipped with an internal model that can real-time monitor the changes in sample readings. Only when the model identifies that the readings have stabilized will the instrument display the final results. This function has greatly avoided misjudgments caused by manual determination of reading fluctuations, ensuring the accuracy and reliability of measurement results.

In addition, the convenient calibration components and calibration method of the VN3100 Series Portable Turbidimeter have also given the enterprise's laboratory personnel full confidence in on-site measurement results. Compared with the complicated and tedious calibration process of traditional turbidimeters, the calibration operation of the VN3100 Series Portable Turbidimeter is simpler and faster, which can complete calibration work in a short time, effectively saving time and labor costs, while also ensuring the measurement accuracy of the instrument during long-term use.

The application of the VN3100 Series Portable Turbidimeter has successfully addressed the pain points of the wine brewing enterprise in wine hot stability testing. With advanced technology and innovative design, it ensures the stability and accuracy of measurement results, avoids misjudgments and errors caused by manual determination of reading changes, and provides reliable technical support for the enterprise's wine quality control work.

From an in-depth technical analysis perspective, the VN3100 Series Portable Turbidimeter has distinct advantages. Its light source is less susceptible to chromatic interference and produces minimal stray light, a feature that makes it more suitable for the hot stability testing of colored fruit wines, especially wine. During the wine production process, due to the rich color of wine itself, the light source of ordinary turbidimeters is easily interfered by color, thus affecting the accuracy of measurement results. Thanks to its unique light source design and optical system, the VN3100 Series Portable Turbidimeter can effectively overcome this problem, ensuring accurate and reliable measurement results in the testing of wines with various colors.

At present, the VN3100 Series Portable Turbidimeter has not only brought innovation to the quality testing of this wine brewing enterprise, but also provided a new solution for the entire wine industry. It has broken the traditional mode of judging wine clarity and protein stability solely by sensory evaluation in the wine industry. Based on scientific and accurate detection data, it helps enterprises more precisely control wine quality and enhance product market competitiveness. With the continuous advancement of technology and in-depth application, it is believed that the VN3100 Series Portable Turbidimeter will play a greater role in the wine industry and contribute more to the high-quality development of the wine industry.

Scan the QR code with WeChat to share with friends