Preface
The food and beverage industry places extremely high demands on product freshness, taste, nutrition, and safety. Oxygen, being one of the main factors causing food deterioration, can lead to fat oxidation, vitamin loss, and even accelerate microbial growth, thereby shortening shelf life. Nitrogen, as a colorless, odorless, non-toxic, and inert gas, plays a crucial role because it can replace oxygen, prevent contamination, and maintain a stable environment — making it an indispensable gas in food and beverage processing, packaging, and transportation.
Sheng Er Gas (Hong Kong) Co., Ltd. has been dedicated for many years to nitrogen generation systems, air separation equipment, and cryogenic air separation technologies, providing high-purity and reliable nitrogen solutions for food and beverage enterprises. These systems are widely applied in dairy products, coffee, beer, fruit juice, snack foods, and research-grade food analysis applications.
The role of nitrogen in food and beverages
- Prevention of Oxidation Reactions
Oxygen inside packaging can cause fried foods to develop rancid odors, lead to oxidation and deterioration of beer, and reduce the vitamin content in fruit juices. After nitrogen flushing, oxygen is effectively isolated, slowing product spoilage and preserving the original flavor and color. - Extended Shelf Life
Nitrogen flushing technology can significantly extend the shelf life of snacks, dairy products, and coffee powder. For example, introducing nitrogen into potato chip packaging not only helps maintain a crispy texture but also prevents the packaging bag from being crushed. - Inhibition of Microbial Growth
Microorganisms require oxygen to grow, and in an oxygen-free environment their reproduction rate decreases significantly. Nitrogen helps reduce the risk of bacterial and mold growth in food products, ensuring food safety. - Maintaining Packaging Integrity
High-purity nitrogen acts as an “air cushion” to prevent food from being damaged by vibration or compression during transportation, making it especially suitable for the preservation of baked goods and puffed snacks.
Nitrogen purity requirements and supply stability
The food and beverage industry has stringent requirements for nitrogen purity, typically ranging from 99.9% to 99.999%. Scientific research applications, such as nutrient analysis and food oxidation studies, require ultra-high-purity nitrogen to ensure accurate and reliable data.
Stability is equally important. Fluctuations in nitrogen supply may cause packaging seal failure and insufficient nitrogen filling ratio, affecting food shelf life. Therefore, choosing a reliable nitrogen generator or cold air separation device to ensure a long-term continuous supply of stable and high-purity nitrogen is a basic guarantee for food and beverage enterprises.
Nitrogen Generator Solution: Flexible and Efficient
Shenger Gas (Hong Kong) Co., Ltd. offers a variety of PSA nitrogen generators designed specifically for the food and beverage industry:
- High Purity Output: Nitrogen production purity reaches 99.999%, meeting the needs of coffee filled with nitrogen preservation or beer filling.
- Ready-to-Use Operation: The equipment features a compact design and quick start/stop capability, making it ideal for small to medium-sized factories or research institutions.
- Automated Operation: Equipped with PLC intelligent control, the system can operate unattended for long periods while ensuring stable gas purity and flow rate.
- 節能減排：現場制氮免除氣瓶搬運同液氮供應鏈風險，降低成本同碳排放。
For example, Sheng Er model SEN100-59 produces 100 Nm³/h of nitrogen and is particularly suitable for snack production lines in medium-sized food factories; while the SEN300-59 model supports large-scale breweries, capable of supplying multiple filling lines simultaneously.
Cryogenic air separation solutions: large-scale gas supply
For large dairy, beverage plants, or businesses requiring liquid nitrogen cooling and packaging technology,Cryogenic air separation devices are more advantageous. The cryogenic air separation system provided by Shenger Gas is capable of:
- Super large yield: A single set of systems can supply thousands of Nm3/h of high-purity nitrogen gas.
- Multi-Product Production: In addition to nitrogen, the system can simultaneously produce liquid oxygen and liquid argon for use in other processes.
- Stable Operation: Supports 24-hour continuous production, making it suitable for large-scale beverage bottling plants or multinational food groups.
For example, the SDON-3500 cryogenic air separation unit can stably provide 3500Nm³ of high-purity nitrogen per hour, supporting the long-term operation of large-scale dairy or juice plants.
Applications to scientific research and experimental scenarios
Food research institutes and testing laboratories have special requirements for nitrogen, such as:
- Food Oxidation Experiments: High-purity nitrogen is used to study the deterioration behavior of various foods under oxygenated and oxygen-free environments.
- Nutrient Composition Testing: Nitrogen is used as a protective gas to prevent the loss of vitamins in samples caused by oxidation.
- Chromatographic Analysis: Nitrogen is used as the carrier gas to ensure the reproducibility and accuracy of test results.
Shenger Gas has provided research institutes with the SEN59-100 laboratory-grade nitrogen generator, with an output purity of 99.999%, for use in food additive and antioxidant research.
Advantages of Shenger Gas (Hong Kong) Limited
As a professional supplier of air separation equipment, Shenger Gas (Hong Kong) Co., Ltd. has the following advantages:
- Comprehensive Product Line: Covers nitrogen generators, cryogenic air separation units, oxygen generators, dryers, and purification systems.
- EPC Turnkey Capability: Provides one-stop solutions covering design, manufacturing, installation, commissioning, and after-sales service.
- International Market Experience: Our products have been exported to Asia, the Middle East, Africa and other places, and have been widely recognized.
- Proven Technology: Multiple patented technologies ensure equipment durability and efficiency, meeting the stringent requirements of the food and beverage industry.
Summarize
Nitrogen is widely used in the food and beverage industry, playing an irreplaceable role in preventing oxidation, extending shelf life, and inhibiting microbial growth, as well as in scientific research and experimental analysis.
Sheng Er Gas (Hong Kong) Co., Ltd., with its advanced technologies in nitrogen generation systems, air separation equipment, and cryogenic air separation, provides safe, stable, and high-purity nitrogen solutions for the food and beverage industry — helping enterprises enhance product quality, extend shelf life, and reduce operating costs.
