SULPHITE-FREE PRESERVATIVES FOR SHRIMP
Shrimps are one of the most consumed seafood products worldwide. However, their classification can vary based on their size, origin, and species. Below, we explain the main types of shrimps and how to ensure their freshness with sulfite-free preservatives.
What varieties of shrimps are in the market?
There are various types of shrimps, often classified by their size and place of capture.
Among the most popular are:
- Tiger shrimp (Penaeus monodon): Large in size, commonly found in Asia.
- Southern shrimp (Pleoticus muelleri): Sourced from the southwestern Atlantic, highly valued for its flavor.
- Patagonian shrimp (Pleoticus muelleri): Characteristic of the cold waters of Argentine Patagonia, with a firm texture and exquisite flavor.
- Vannamei or Pacific white shrimp : Primarily farmed in Latin America and Asia, it is one of the most consumed worldwide.
Each variety of prawn has unique characteristics in terms of flavor and texture, but all face similar challenges regarding shelf life and preservation.
What shelf life issues do shrimps have?
One of the biggest challenges in the commercialization of shrimps is their shelf life. As a highly perishable product, proper handling from capture or farming to the consumer is crucial.
The main shelf life issues include:
- Rapid decomposition: Without proper refrigeration or freezing, shrimps begin to decompose within hours.
- Color changes: Fresh shrimps have a bright color, but over time and with oxygen exposure, their color can turn dull or gray.
- Bacterial growth: The presence of bacteria such as Listeria or Salmonella poses a food safety risk if proper preservation measures are not taken.
Thus, shrimp manufacturers resort to the use of additives and preservatives to maintain the shelf life of products until they reach the end consumer.
What additives are commonly used to improve the color and safety of shrimps?
To preserve both the appearance and safety of shrimps, the food industry uses various chemical additives and preservatives. The most common are:
- Sodium sulfite (E-221): Traditionally used to prevent prawns from darkening and to preserve their natural color. Despite its widespread use in the industry, sulfites can cause allergic reactions in some people at certain concentrations.
- Phosphates: Food industry phosphates (such as potassium phosphate E-340) are used to retain moisture and improve the texture of prawns, preventing them from drying out.
- Citric acid and its derivatives: These preservatives are antioxidants that help prevent oxidative deterioration and maintain the color and freshness of the product. Their use is also very common in other foods. Citric acid is labeled with the number E330.
Despite their effectiveness, more and more consumers and manufacturers are seeking more natural, allergen-free alternatives, such as sulfite-free preservatives that maintain the food’s color and safety.
What sulfite-free natural preservatives does Amerex offer?
At Amerex Ingredientes, we understand the importance of offering solutions that not only extend the shelf life of shrimps but are also safe and natural. That’s why we provide natural sulfite-free preservatives that not only ensure the freshness and safety of prawns but also meet the demands of modern consumers who prefer allergen-free and healthier products.
We have extensive experience in using preservatives to maintain the color of various types of fish and shellfish and to improve safety against pathogens like Listeria. You can check out some of our success stories at this link.
Don’t hesitate to contact us if you’re looking for a natural preservative free from E numbers that enhances the organoleptic properties and safety of your foods.
- You can email us at: imasd@amerexingredientes.com
- Call us at: +34 91 845 42 14
- Fill in the form below
Patricia Rodrigo is Head of Marketing & Product at Amerex. With a background in Biotechnology and a Master’s in Biotechnology Business Management, her work focuses on research and communication of natural alternatives to additives, conservation strategies, and pathogen control in various food groups for the industry.
