Beverage Testing
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Note: this service is for Research Use Only and Not intended for clinical use.
Beverage (or drink) is a liquid intended for human consumption. Common types of drinks include plain drinking water, milk, coffee, tea, hot chocolate, juice and soft drinks. In addition, beverage also contains an alcoholic beverage containing drug ethanol. The most basic function of a beverage is to provide the moisture and other nutrients necessary for human life. Some beverages contain special ingredients that play different roles in the human body, such as dietetic health care, regulating body functions, and satisfying people's special hobbies. They are essential indispensable drink in people's daily lives. Commercially available beverages usually contain pigments, flavors, saccharin, and preservatives, which increase the burden on the liver. Hot drinks above 65℃ were classified as Class 2A carcinogens in the list of carcinogens published by the World Health Organization's International Agency for Research on Cancer on October 27, 2017. Alfa Chemistry’s beverage testing laboratory helps beverage manufacturers and brand owners to test their product quality. We help clients with microbiology analysis, nutritional analysis and various food chemistry analysis. These tests can be done both for ready-to-drink products and separate raw materials.
Samples can be tested and analyzed by Alfa Chemistry include:
Aerated water
Mineral water
Carbonated drink
Inflatable sports drink
Tea beverage products
Milk-containing beverage
Plant protein drink
Solid drink
Other beverage
Alfa Chemistry's testing services for beverage:
| Services | Test items |
|---|---|
| Nutrient content | Zn, Se, total sugar |
| Mycotoxin | Patulin |
| Microorganism | Total number of colonies, coliform, streptococcus faecalis, pseudomonas aeruginosa, clostridium perfringens |
| Heavy metal | Lead, cadmium, chromium, total arsenic, total mercury, copper, lithium, antimony, antimony, silver, boron, hexavalent chromium |
| Physical and chemical analysis | Nitrate, cyanide, bromide, iodide, metasilicate, fluoride, volatile phenol, anion, nitrite, peroxide value |
| Food additive | Colorants, amaranth, brilliant blue, seductive red, carmine, sunset yellow, lemon yellow, sorbic acid, saccharin sodium, potassium acetosulfonate (aspartate), sodium cyclohexylaminosulfonate (cyclamate), antioxidants, caffeine, benzoic acid, ascorbic acid, thiamine and its derivatives, riboflavin and its derivatives, sweeteners, quinine, aspartate phenylalanine methyl ester (sweetener, aspartame) |
| Illegal addition | Melamine, plasticizer |
| Pesticide residues | Glyphosate |
Techniques for beverage detection
HPLC Detection Method
Tea polyphenol, also known as vitamin Phenol, is the general name for more than thirty kinds of phenolic substances in tea, accounting for about 25%-35% of the total dry matter of tea. These include four major categories of substances: catechins, flavonoids, anthocyanins, and tannins. High-performance liquid chromatography (HPLC detection method) is currently one of the most widely used and effective methods for separating and analyzing tea polyphenols. It has the advantages of high resolution, fast analysis speed, good repeatability, and high accuracy of quantitative analysis. It can effectively separate tea polyphenols and accurately quantify its components.
Ultrasonic Testing
Ultrasound can be used to detect high concentration and opaque materials. It can be used to detect the composition of different substances in different products. It can also detect the total sugar content in fruit juice and determine the concentration of sugar at the same time.
Colony Counting Method
The colony counting method determines the microbial content of a beverage by culturing the microorganisms in a beverage sample on a rich medium and then counting the number of colonies. This method can detect microbial contamination such as bacteria and mold in beverages.
Sensor Technology
Sensor technology is a convenient and fast detection method by contacting the sensor with the beverage sample and sensing and analyzing the substances in the beverage. Sensors can select corresponding sensing technologies for detection based on different types of substances, such as gases, solutions, solids, etc.
Industry articles
Detection of the Veterinary Drug Xylazine in Beverage Samples
Saisahas, K., et al. Journal of pharmaceutical and biomedical analysis. 2021, 198, 113958.
Xylazine is used to facilitate sexual assaults and robberies because victims cannot remember events that occurred while under the influence of xylazine. The most important aspect of investigating sexual assault and robbery is to collect biological evidence without delay. However, xylazine is difficult to detect in biological samples because it is rapidly cleared from the body. Therefore, detecting xylazine in drinks or drink containers at crime scenes may help clarify evidence of sexual assaults and robberies.
Detection Caffeine in Tea Beverages
Ghosh, A. K., et al. Journal of agricultural and food chemistry. 2013, 61(16), 3814-3820.
Caffeine is an alkaloid found in many natural products and is known to aggregate with polyphenols. This connection also changes the taste of the drink. Additionally, caffeine has been used as an ingredient in beverages for many years. Caffeine consumption is considered harmless in adults (<100 mg per day), but it is a concern in young children and pregnant women, as several health-related illnesses are caused by caffeine. Therefore, caffeine content is necessary information to control product quality (taste and health benefits of the product).
Selective Detection of Hg2+ in Beverages
Fu, Wen-Jing, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2022, 265, 120392.
With the rapid development of science and technology and economy, toxic heavy metal ion pollution has been generated globally, which is attributed to the processing of agricultural and industrial waste. Among them, mercury ion (Hg2+) is one of the most common and dangerous heavy metal ions. It has bioaccumulation and high toxicity, causing serious harm to human health and the environment. Mercury exposure is directly related to the consumption of mercury-contaminated seafood, agricultural products, and other foods. Exposure to Hg2+ can damage the nervous system and digestive system, leading to kidney failure and death.
Beverage test guidance, standards and specifications
ISO
FDA
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