TAMARAC, Fla. -- A South Florida woman is accused of trying to poison jars of baby food at a Tamarac supermarket.

Police arrested Shirley Ybarra, 50, of Sunrise on Thursday after workers at a Publix store on West Commercial Boulevard noticed her wearing latex gloves in the store and using an eye dropper to mix a black liquid with some of the items in her shopping cart, according to the Broward Sheriff's Office. Surveillance video showed her in the aisle.

It is unclear what the black liquid was, but a detective said in court on Tuesday morning that a jar of baby food bananas and a bottle of baby juice had been tainted. BSO said the liquid smelled of ammonia, and that Ybarra had it in a Victoria's Secret body splash bottle. The detective also said police found an open bottle of pine-scented cleaner in the cart, as well.

"The effects of the chemicals I can't testify to. I just know they were tampered with, and there's some unknown substance in there," Detective Jeff Kogan said.

Investigators said Ybarra was trying to leave the store with the contaminated items, but workers stopped her and held her there until BSO deputies arrived.

Ybarra told store employees that she was mixing food for her son, BSO said.

Police said there is nothing to indicate that Ybarra put any tainted items back on the shelf. All of the contaminated food was there in her cart.

That was little comfort to the judge, who set her bond at $250,000.

"I'm looking at somebody who's gone into Publix and allegedly poisoned baby food and was leaving the store. I have no idea where it was going from there, but I think you represent a danger to the community," Judge John Hurley said.

Ybarra faces charges of poisoning food or water, a first-degree felony. She is being held at BSO's North Broward Bureau jail in Pompano Beach. BSO said she was taken to a hospital under the Baker Act and charged on Saturday.

Publix representatives said they removed all the baby food from the shelves at the store where the incident happened and that the baby food now on the shelves is safe. There is no widespread recall, and it appeared to be an isolated incident, WPLG reported.

BSO said Publix officials checked other area supermarkets to determine if Ybarra had been to any of them.

Investigators have not identified the black liquid. BSO planned to send a sample of the substance to a Food and Drug Administration lab in Cincinnati for testing, but the results are not expected for two or three weeks.

Ybarra's father said his daughter had struggled with mental illness since high school and acts erratically when she does not take her medication. He said Ybarra has no connection to children, no babies to feed, and he believes these are the actions of a troubled person who now may finally get the help her family has tried to provide.

"She'll be forced to get medication, and maybe that's a good part of it," he said.