You need to create a separate Youtube Channel for your business in order to properly market your business online both through Youtube and Google+. Here is a quick guide how to setup your Youtube channel not under your personal account but as a business.

Make sure you’re signed in to YouTube.

1. Go to All my channels.
2. If you want to make a YouTube channel for a Google+ page that you manage, you can choose it here. Otherwise, click Create a new channel.
3. Fill out the details to create your new channel.

Read more here on Google