It was the Italian's third goal for the season and Eriksson told City's website: "It was a very good goal, good delivery from Petrov and a great header, but that's Bianchi.
"He's there in the right place at the right moment and in the box. He's very physical and strong.
"I speak with him every day and it's very easy to because we can both speak Italian. It's not been easy for him, but I hope that this goal will help his confidence.
"The English game is different; a lot of strikers who come here have problems settling in at the beginning.
"The pace is different and the tackling can be as well. I think he played as a lone striker at Reggina though, so he is used to that role."
Speculation of late has centred on the former Under 21 striker's return to Italy once the January transfer window opens, but the City boss wouldn't entertain that idea after the 2-1 defeat.
He stated: "He seems happy and calm, he has been working very hard, so there have been no indications that he wants to leave or anything like that."