I just started my baby with puree. However as im a working mom, i do not have time to prepare fresh puree fast as my LO is in ifc and reached home will play short while then sleep. So i need to give her puree immediately when i reach home. Can puree be pre-prep and store in fridge and is it advisable to do so? (Lost nutrients etc?)

Yes you can definitely do that. What I used to do was to puree veg/fruits every week and put them in the freezer and use it daily throughout the week. If you're planning to keep them in the fridge, try not to exceed 48 hours for freshness. As for freezer, I try to keep mine for a max of 2 weeks (guideline says 1-3months). Don't forget to introduce 1 food at a time and wait 3 days to see if your child has any allergies. Happy weaning!