Translate the given Spanish text to English

[Q]: An antimicrobial agent is optionally included.
[A]: Opcionalmente, se incluye un agente anti-microbiano.


[Q]: The invention relates to a method of producing a yoghurt-based product.
[A]: Se describe un método para producir un producto a base de yogur.


[Q]: The connecting rod (12) and the canister cover component (4) are connected.
[A]:
La biela 12 se conecta con el componente de cubierta de cilindro 4.