Responsible Chemist
Technical articles
Specialized content
Since 1972
Over 50 years of experience
Responsible Chemist at Boreto & Cardoso, an industrial chemicals distributor founded in 1972. He is in charge of the technical documentation of the products, such as Certificates of Analysis and Safety Data Sheets, and of the technical review of the blog articles.
68 articles
LinkedIn profileAuthor: Walmir Rezende • 10/06/2025
Technical managers often see the same preservative, at the same dosage, work in one product and fail in another. The explanation usually lies in pH.
Read MoreWalmir Rezende • 10/06/2025
Proper pH control is essential for quality and safety in meat and dairy products, since it affects preservatives, texture and emulsions.
Read MoreWalmir Rezende • 10/05/2025
Sodium bicarbonate (NaHCO₃) is widely known for household uses, but it also has specific technical uses in industrial meat processing:
Read MoreWalmir Rezende • 10/04/2025
Citric acid and sodium citrate are pH regulators used in meatpacking and dairy plants, but they do different jobs: one acidifies, the other emulsifies and buffers.
Read MoreWalmir Rezende • 10/03/2025
Extending the shelf life of meat and dairy products is a challenge: combining sodium benzoate and potassium sorbate creates a synergistic effect and stronger antimicrobial protection.
Read MoreWalmir Rezende • 10/02/2025
Sodium nitrite and sodium nitrate are curing salts approved by ANVISA, but they work through different mechanisms: see which to choose for quick cures or long cures.
Read MoreWalmir Rezende • 10/01/2025
The use of preservatives in meatpacking plants is regulated by ANVISA and MAPA in Brazil; documentation failures lead to citations, fines and held batches.
Read MoreWalmir Rezende • 10/01/2025
Preserving processed meat requires microbiological safety, sensory quality and compliance with the strict health regulations set by ANVISA.
Read MoreWalmir Rezende • 02/15/2023
Hydrochloric acid is extremely corrosive and toxic in its natural form. It has a yellow color...
Read MoreWalmir Rezende • 02/02/2023
If you have ever stood next to a pool that went unused for a long time, you have surely seen that greenish water...
Read MoreWalmir Rezende • 12/28/2022
Flocculation is one of the first stages of water treatment. It is a chemical and physical process in which small particles are aggregated...
Read MoreWalmir Rezende • 12/28/2022
Continuing our series on the products you can find here at Boreto & Cardoso, today we will talk about two products widely used for disinfection...
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