TV presenter Gregg Wallace has apologised for claiming complaints about his behaviour came from “a handful of middle-class women of a certain age”, adding he will now “take some time out”.

The MasterChef presenter, who faces various allegations including making “inappropriate sexual jokes”, posted a video on his Instagram stories on Monday to issue an apology.

He said: “I want to apologise for any offence that I caused with my post yesterday and any upset I may have caused to a lot of people.

“I wasn’t in a good headspace when I posted it, I’ve been under a huge amount of stress, a lot of emotion, I felt very alone, under siege yesterday when I posted it.

“It’s obvious to me I need to take some time out, now while this investigation is under way. I hope you understand and I do hope you will accept this apology.”

It follows a backlash to the comments made over the weekend with Downing Street saying his response to the accusations was “inappropriate and misogynistic”.

The 60-year-old faces allegations from 13 people across a range of shows over a 17-year period, as reported by BBC News on Thursday, with many others sharing their experiences in recent days.

Wallace’s lawyers say “it is entirely false that he engages in behaviour of a sexually harassing nature”.

Last Thursday, it was announced that Wallace is to step away from the hit BBC cooking show while historical misconduct complaints are externally reviewed by the producer Banijay UK.

Culture Secretary Lisa Nandy has since held talks with BBC bosses in the wake of the Wallace investigation.

The Prime Minister’s official spokesman said on Monday: “The Culture Secretary spoke with the BBC leadership at the end of last week on this matter and wider workplace culture issues to seek assurances that there are robust processes in place to deal with complaints.

“Clearly the comments we have seen from the individual over the weekend were completely inappropriate and misogynistic.

“More broadly the BBC is conducting an independent review into workplace culture which must deliver clear and timely recommendations. It’s essential that staff and the wider public have confidence that the BBC takes these issues seriously.”

Asked whether MasterChef should be pulled off air, the spokesman added the decision was for the BBC and the show’s production company, and reiterated that Downing Street believes it is “right” that a thorough investigation is conducted.

Also responding to the allegations, TV chef Tom Kerridge told Sky News’s Politics Hub with Sophy Ridge that he has known Wallace to always be “full of jokes”.

“And he’s always full of charisma. And that front of camera charisma is always something that continues into off-screen as well”, he said.