Q: Can I use 85W MagSafe Power Adaptar in a MacBook (13 pulgadas, middle of 2010)?

Yes, so long the charger is not a magsafe2.  In other words, the CONNECTION to the MBP must be compatible.

Ciao.

Running an 85W system on a 60W charger will injure the charger.  Running a 60W system on a 85W charger just need the right connection.

Yes From:. Find the right power adapter and cord for your Mac notebook - Apple Support

"Power adapters for Apple notebooks are available in 29W, 45W, 60W, and 85W varieties. You should use the appropriate wattage power adapter for your Apple notebook. You can use a compatible higher wattage adapter without issue, but it won't make your computer charge faster or operate differently. Lower wattage adapters will not provide enough power."