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Nancy is a trusted home cook.
What do you mean?
Create a vacuum? If Yes, why?
If other, What?
HalfPint is a trusted home cook.
I would put the fruit in a Ziploc bag, partial seal it leaving a small opening for a straw. Insert straw and suck out the air. Quickly remove straw and close the bag completely.
In order to vacuum seal in jar, you will either need a container that has an air valve that can hook up to a vacuum pump; a vacuum chamber; or FoodSaver jar sealer.
I do this all the time with baggies, but you really don't need the straw, and you can close up faster without it.