The owner of a supermarket in Adelaide's inner-north where inspectors found food containing mould and insects, and out-of-date products has been fined $45,000 for breaching food safety regulations.

Mohammad Yunous Sharafat pleaded guilty to 35 charges in the Port Adelaide Magistrates Court last month relating to the cleanliness and quality of products at his Star Supermarket on Prospect Road at Kilburn.

The 34-year-old was initially charged with 54 breaches following routine inspections of his store by health officers from the Port Adelaide Enfield Council between October 2016 and January 2017.

The charges included selling food past its use-by date as well as failing to separate and clearly identify food held for disposal, failing to properly label products, failing to store food in a way to protect it from contamination and failing to maintain cleanliness of fixtures and equipment.

Kilburn shopkeeper Mohammad Yunous Sharafat was fined for breaching food safety regulations. ( ABC News: Rebecca Opie )

The court heard inspectors found insects inside packets of dates and flour in the supermarket's cool room along with mouldy fish, bread and dried fruit.

They found dairy products which had been expired for up to seven months and large carcasses of raw meat which had been left uncovered on wooden pallets in a cool room with fresh produce and other food in close proximity.

On Friday, Magistrate Bob Harrap convicted Sharafat of all 35 charges and imposed a fine of $45,000.

"The council is still concerned, you need to make sure none of this is repeated," he told Sharafat.

"These are serious offences with potentially serious consequences for the public.

"The total fine I have imposed could be said to be at the lower end of the scale, you cannot afford for there to be any further offending."

Whitebait fish had turned green with mould. ( Supplied: SA Courts )

The court heard Sharafat had previously been charged for selling out-of-date products in 2014 and that the council had tried to educate him on how to comply with the Food Standards Act.

Mr Harrap said the shopkeeper was a "slow learner" who had not taken advantage of the council's approach.

"I have no doubt they will be keeping a fairly close eye on your premises," he said.

Sharafat's lawyer Michael Bayne previously told the court his client worked at the store around-the-clock to provide for his family, and has been working on putting a number of measures in place to keep on top of stock expiry dates.